UCD3138PFCEVM-026

Using the UCD3138PFCEVM-026 User's Guide Literature Number: SLUU885B March 2012 – Revised July 2012 www.ti.com WARNING Always follow TI’s set-up and application instructions, including use of all interface components within their recommended electrical rated voltage and power limits. Always use electrical safety precautions to help ensure your personal safety and the safety of those working around you. Contact TI’s Product Information Center http://support/ti./com for further information. Save all warnings and instructions for future reference. Failure to follow warnings and instructions may result in personal injury, property damage, or death due to electrical shock and/or burn hazards. The term TI HV EVM refers to an electronic device typically provided as an open framed, unenclosed printed circuit board assembly. It is intended strictly for use in development laboratory environments, solely for qualified professional users having training, expertise, and knowledge of electrical safety risks in development and application of high-voltage electrical circuits. Any other use and/or application are strictly prohibited by Texas Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM. 1. Work Area Safety: (a) Keep work area clean and orderly. (b) Qualified observer(s) must be present anytime circuits are energized. (c) Effective barriers and signage must be present in the area where the TI HV EVM and its interface electronics are energized, indicating operation of accessible high voltages may be present, for the purpose of protecting inadvertent access. (d) All interface circuits, power supplies, evaluation modules, instruments, meters, scopes and other related apparatus used in a development environment exceeding 50 VRMS/75 VDC must be electrically located within a protected Emergency Power Off (EPO) protected power strip. (e) Use a stable and non-conductive work surface. (f) Use adequately insulated clamps and wires to attach measurement probes and instruments. No freehand testing whenever possible. 2. Electrical Safety: (a) De-energize the TI HV EVM and all its inputs, outputs, and electrical loads before performing any electrical or other diagnostic measurements. Revalidate that TI HV EVM power has been safely deenergized. (b) With the EVM confirmed de-energized, proceed with required electrical circuit configurations, wiring, measurement equipment hook-ups and other application needs, while still assuming the EVM circuit and measuring instruments are electrically live. (c) Once EVM readiness is complete, energize the EVM as intended. WARNING: while the EVM is energized, never touch the EVM or its electrical circuits as they could be at high voltages capable of causing electrical shock hazard. 3. Personal Safety: (a) Wear personal protective equipment e.g. latex gloves and/or safety glasses with side shields or protect EVM in an adequate lucent plastic box with interlocks from accidental touch. 4. Limitation for Safe Use: (a) EVMs are not to be used as all or part of a production unit. 2 SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated User's Guide SLUU885B – March 2012 – Revised July 2012 Digitally Controlled Single-Phase PFC Pre-Regulator 1 Introduction This EVM is to help evaluate the UCD3138 64-pin digital control device in off-line power converter application and then to aid its design. The EVM is a standalone Power Factor Correction (PFC) preregulator of single-phase AC input. The EVM UCD3138PFCEVM-026 is used together with its control card, UCD3138CC64EVM-030, also an EVM on which is placed UCD3138RGC. The EVM of UCD3138PFCEVM-026 together with UCD3138CC64EVM-030 can be used as they are delivered without additional work, from either hardware or firmware, to evaluate PFC. The UCD3138PFCEVM-026 together with the UCD3138CC64EVM-030 can also be re-tuned on its design parameters through the operation of GUI, called Texas Instruments Fusion Digital Power Designer, or reloaded up with custom firmware with user’s definition and development. The EVM system is in topology of single-phase boost converter at its delivery on both hardware and firmware, but can be re-configured into two other PFC topologies: dual-phase interleaved, and bridgeless, then corresponding operation can be made by reloading with that associated firmware. All necessity of hardware and firmware for the two additional topologies are already developed and delivered with the shipment. Please contact Texas Instruments to obtain the instructions how to make re-configuration. In the package delivered, three EVMs are included UCD3138PFCEVM-026, UCD3138CC64EVM-030, and USB-TO-GPIO. In the same package, also included is a hard copy of Evaluation Module Electrical Safety Guideline. This user’s guide provides basic evaluation instruction from a viewpoint of system operation in standalone PFC in its boost configuration. SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 3 Description 2 www.ti.com Description UCD3138PFCEVM-026 together with UCD3138CC64EVM-030 is an EVM of PFC pre-regulator with digital control using UCD3138 device in boost converter topology and in the application of single-phase AC input. UCD3138 device is located on the board of UCD3138CC64EVM-030. UCD3138CC64EVM-030 is a daughter card and serves all PFC required control functions with preloaded single-phase boost PFC firmware. UCD3138PFCEVM-026 accepts universal AC line input from 90 VAC to 264 VAC, and outputs nominal 390 VDC with full load output power 360 W, or full output current 0.92 A. 2.1 Typical Applications • • • 2.2 Features • • • • • • • • • 4 Single-Phase Universal AC Line Power Factor Correction Pre-Regulator Servers Telecommunication Systems Digitally Controlled PFC Pre-Regulator Universal AC Line Input from 90 VAC to 264 VAC with AC Line Frequency 47 Hz to 63 Hz Regulated Output 390 VDC with Output from No-Load to Full-Load Full-Load Power 360 W, or full-Load Current 0.92 A High Power Factor Close to 0.999 and Low THD Below 5% in Most Operation Conditions High Efficiency Protection: – Over Voltage – Over Current – Brownout – Power-On Inrush Current Test Points to Facilitate Device and Topology Evaluation Re-Configurable to Dual-Phase Interleaved PFC or Bridgeless PFC (please contact TI for detail) Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Electrical Performance Specifications www.ti.com 3 Electrical Performance Specifications Table 1. UCD3138PFCEVM-026 Electrical Performance Specifications PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input Characteristics Voltage range 90 264 VAC Line frequency 47 63 Hz 6.5 7.0 A 4.5 5.5 Input current, peak Input = 90 VAC, 60 Hz, full load = 0.92 A Input current, RMS Input = 90 VAC, 60 Hz, full load = 0.92 A Input UVLO On PFC function start (no load) 86 90 Input UVLO Off PFC function stop (no load) 80 83 Power factor Half load 0.99 THD, input current 10% to 30% full load 10% 30% to 100% full load 5% Output voltage, VOUT No load to full load 390 Output load current, IOUT 90 VAC to 264 VAC Output voltage ripple Full load and 115 VAC, 60 Hz VAC - Output Characteristics VDC 0.92 13 Full load and 230 VAC, 50 Hz A Vpp 15 Output over current 0.95 A Systems Characteristics Switching frequency Normal operation 100 Peak efficiency 230 VAC, full load 96% Full load efficiency 115 VAC, full load 94% Operating temperature Natural convection 25 SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated kHz ºC 5 6 J2 J11 F2 4.7nF C5 (J3-26) LED_3 (J3-25) LED_2 LED_1 (J3-13) LN1371GTR R8 1k + BUS+ Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated J7 J10 MBR0530 1 C6 4.7nF R81 1k 10uF OUT 2 OUT 4 7 GND 5 VIN_MONITOR6 VAUX_S R31 1.5k 10k R72 1.5k VAUX_S Secondary side External sync signal SYNC_IN VAUX_P VAUX_S_RTN 1 0 VAUX_S R75 R36 R35 R34 R33 1 1 0 0 TP10 1 TP8 VAUX_S_RTN 1 VAUX_P_RTN VAUX_S +12V_EXT TP9 VAUX_P When U11 not installed, connect J14-1 and -3 to external source to get +12V_EXT C12 1nF C37 0.47uF C3 47nF C2 47nF 1 VAUX_S_RTN R74 10k Q6 MMBT3904TT1 D20 R80 1k R31 and R106 are preload resistors if use VAUX_P but not use VAUX_S Isolation line 4.7k R38 D21 Q7 MMBT3904TT1 C21 1 ADJ/GND 2 GND_EARTH TP4 +3_3V L3 7.80uH 2 L4 7.80uH If needed, connect J15-1 and -2 to use U11 to bias secondary side 4 -VIN 3 -VAUX_-VIN 2 VAUX_P 1 VIN+ 1 3 2 10k DB-1 PWR050 R37 R21 R82 1k C1 10uF 3 IN D24 2 VAUX_P_RTN 1 4.7k VAUX_P R20 R19 2 1 U7 TLV1117-33IDCY 4 2mH 1 L5 3 TP11 D18 Q8 4.7k MMBT3904TT1 +12V_EXT 1 1 Copper fill for heat-sink +12V_EXT 1 D19 AC_Neutral Vin = 90 to 264 Vac (47 to 63Hz) GND_EARTH Fuse: T7A/250VAC AC_Line 2 TP7 1 (J4-20) AC_N 330pF C30 TP5 3.3k R23 3.83k R14 R27 200k C38 0.47uF C20 2 DPWM_3B FAULT_0 FAULT_1 SYNC PWM-1 PWM-0 SCI_RX1 SCI_TX1 SCI_RX0 SCI_TX0 TP3 1nF DPWM-0A DPWM-1A DPWM-1B DPWM-2A DPWM-2B DPWM-3A AC_DROP RLY_CTRL LED_1 SYNC_IN SCI_TX1 SCI_RX1 LED_2 LED_3 SCI_TX0 SCI_RX0 +12V_EXT +3_3V D25 BAT54S R13 200k R28 200k R29 200k R15 200k R30 200k 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 AC_L (J4-18) DGND 1 1 J3 1 1 R70 10k 2N7002 Q1 TP12 R42 TP13 5 1 1k 2 3 4 50 RLY_CTRL (J3-11) D5 1N4148W +12V_EXT AC_NEU_PFC 1 SH2 2 AGND J4 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ISENSE_SHUNT 1 CT_2 1 1 R68 IPM IIN_SENSE VBUS_SENSE CT_1 1 C17 VBUS_OV AC_L AC_N 1 C25 Parts not used AD_00 AD_01 AD_02 AD_03 AD_04 AD_05 AD_06 AD_07 AD_08 AD_13 1 C29 EADC_P2 EADC_P1 EADC_P0 R24 0 1 R1 R49 CT_2 R32 CT_1 0 Bridgeless PFC with CT_1 and CT_2 and Interleaved PFC with ISENSE_SHUNT. +3_3V D6 BAT54S R16 3.83k TP14 K1 R3 AC_L_PFC 0.1uF C27 SCI_TX1 1 +3_3V 4.7k R22 1 3 T1IN 11 4 GND1 3 INB 2 OUTA 3 0.1uF C28 R76 R77 Isolated GND GND2 5 OUTB 6 INA 7 VCC2 8 0 1.1k R78 V33D_ISO R1OUT 9 INVALID 10 U8 V33D_ISO ISO7221CD 3 4 T1OUT 13 FORCEON 12 U9 SFH6156-2 SCI_TX0 SCI_RX0 8 R1IN 7 V- 6 C2- 5 C2+ 4 C1- GND 14 3 V+ 2N7002 Q4 2 1 VCC1 1 1 AC_DROP 100 R79 (J3-8) SCI_RX1 R73 10k 0.1uF +3_3V 0.1uF 0.1uF C14 C13 C9 C8 0.1uF VCC 15 2 C1+ FORCEOFF 16 U2 SN75C3221DBR 1 EN C15 0.1uF 1 Secondary side ISO_SCI_TX ISO_SCI_RX GND_Ext Isolated GND 3 1 2 3 4 5 6 V33D_ISO J8 Secondary side Ext Supply 3.3V 0 1 6 2 7 3 8 4 9 5 10 OPTO Isolated Section 1 1 TP2 TP1 +3_3V J9 4 + J1 Schematics www.ti.com Schematics Figure 1. UCD3138PFCEVM-026 Schematic SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback 11 SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated C4 2 R5 1k R69 1.6k BAT54S D4 +3_3V C18 0.1uF (J3-7) DPWM-3A SYNC_IN (J3-15) 6 49.9k R59 4 R60 49.9k 3 2 100pF C36 R2 3.3M 2 R58 R39 IPM +3_3V R61 1k HS1 TP21 TP18 D2 BAT54S 1 47nF C22 1 C32 150pF R45 Interleaved PFC: Jump across E6 and E4, and E1 and E5. D17 GBU8J C23 1 SH1 D7 MURS160T3 0.02 0.02 1 1 1 4.7nF E5 E4 2 JMP1 R17 100k GND_EARTH R18 100k 1 DGND 1 SWITCH_NODE C7 1 E1 1 E3 E6 1 2 0.1uF 1 E2 R11 100k R12 100k 1.8k R48 PGND 100 R6 R7 BAT54S BAT54C D8 2k 2k +3_3V D23 Single-phase PFC: default connection E6 to E4. Bridgeless PFC: Jump across E2 and E6, and E3 and E1. TP16 U1 OPA350EA 7 100pF C35 +3_3V 2 0.01uF C16 (J4-8) IIN_SENSE U3 R4 OPA350EA 5.01k 910 Q5 2N7002 AC_NEU_PFC AC_L_PFC TP20 (J4-40) ISENSE_SHUNT 0.1uF R71 (J4-6) R43 R41 1 +3_3V (J4-30) CT_2 6A6-T R44 D15 BAT54S D16 +12V_EXT (J3-5) DPWM-2A (J3-6) DPWM-2B (J3-4) DPWM-1B (J3-3) R40 DPWM-1A +12V_EXT (J4-12) CT_1 0 1 1 0 2 1 +3_3V D22 TP6 C11 C10 2 IN- VDD 6 10k IN- OUT 1 OUTB 5 Parts not used R64 U6 N/C 8 OUTA 7 ZHCS506 IN+ GND VDD 4 INB 3 GND 2 INA 1 N/C R63 15 U4 1 UCC27324D IN+ GND VDD U5 OUT ZHCS506 R65 10k D9 D10 1 15 R66 BAT54S TP19 TP25 R54 0 3 5.23 3 R57 10k 1 MBR0530 D12 R52 0 2 R56 10k 2 3 T2 Q2 7 8 TP23 C24 TP17 47nF C40 TP22 R47 1.8k R46 100k R51 100k R67 100k R62 100k 47nF D1 + - J6 Vbus + 220uF C34 J5 BAT54S +3_3V BUS+ C19 0.1uF C41 2 (J4-10) VBUS_SENSE TP15 100k R9 R10 100k R25 100k R26 100k Vbus = 390VDC, Iout = 0.92A 47nF 47nF 0.1uF C39 2 1.8k R50 C33 HS2 +3_3V (J4-16) VBUS_OV HS3 SWITCH_NODE BAT54S D3 TP24 C3D10060G D14 D13 C3D10060G 8 7 PA1005.050 1 Q3 IPP60R199CP D11 MBR0530 327uH L1 1uF C26 T1 PA1005.050 1 +12V_EXT R55 47uF C31 + R53 5.23 1 TP26 L2 327uH IPP60R199CP 3 www.ti.com Schematics Figure 2. UCD3138PFCEVM-026 Schematic Digitally Controlled Single-Phase PFC Pre-Regulator 7 Test Setup www.ti.com 5 Test Setup 5.1 Test Equipment AC Voltage Source:capable of single-phase output AC voltage 85 VAC to 265 VAC, 47 Hz to 63 Hz, adjustable, with minimum power rating 400 W, the AC voltage source to be used should meet IEC60950 reinforced insulation requirement. DC Multimeter: capable of 0-V to 500-V input range, four digits display preferred. Output Load: DC load capable of 400 VDC or greater, 1 A or greater, and 400 W or greater, with display such as load current and load power. Oscilloscope: capable of 500-MHz full bandwidth, digital or analog, if digital 5 Gs/s or better. Current probe: capable of 0 A to 10 A, 100-MHz or greater full bandwidth, AC coupling. Fan: 200 LFM to 400 LFM forced air cooling is recommended, but not a must. Recommended Wire Gauge: capable of 4-A RMS, or better than #16 AWG, with the total length of wire less than 8 feet (4 feet input and 4 feet return). 5.2 Recommended Test Setup + Electronic Load VM1 TP17 TP22 J6 J1 J5 J2 L N AC Source Figure 3. UCD3138PFCEVM-026 Recommended Test Setup 8 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Test Setup www.ti.com UCD3138CC64EVM-030 Figure 4. EVM Orientation of UCD3138PFCEVM-030 on the UCD3138PFCEVM-026 SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 9 List of Test Points 6 www.ti.com List of Test Points Table 2. List of Test Points 7 TEST POINTS NAME DESCRIPTION TP1 T1OUT TP2 R1IN TP3 DGND Digital GND of J3 connection TP4 +3_3V 3.3-V LDO output on board from 12 V TP5 RC-PWM-0A TP6 CT_2 Second phase current sensing signal TP7 AC_N Input voltage sensing signal of Neutral wire TP8 DGND Digital GND and same as TP3 TP9 VAUX_S Secondary side 12 V on board. Not used, but can be used for external circuit. TP10 VAUX_P 12-V output on board from DB-1, UCC28600EVM400V-12V TP11 +12V_EXT TP12 K1 TP14 AC_L TP15 VBUS_SENSE UART0 (J9-2) T1OUT UART0 (J9-3) R1IN DPWM0A RC filter 12 V on board from VAUX_P Relay K1 coil Input sensing signal of Line wire PFC output voltage sensing signal TP16 GND Analog GND TP17 BUS- PFC output return TP18 REC-1 Rectifier positive output TP19 CT-1 TP20 ISENSE Current sensing signal from current transformer T1 TP21 REC-2 Rectifier return TP22 BUS+ PFC output positive, nominal 390VDC TP23 SW2 Q2 Drain pin TP24 SW1 Q3 Drain pin TP25 Q2-Gate Gate pin of Q2 MOSFET TP26 Q3-Gate Gate pin of Q3 MOSFET Current sensing signal after conditioning List of Terminals Table 3. List of Terminals 10 TERMINAL NAME J1 Line J2 Neutral J3 DJ Digital signal connection, 40 pins J4 AJ Analog signal connection, 40 pins J5 BUS+ PFC output positive connection, single-pin connection – screw type, BUS+ and BUS- are DC output terminals, rated maximum 400 VDC, and maximum current 1 A. J6 BUS- PFC output return, single-pin connection – screw type J7 12V_Sec J8 UART1 Isolated and communication to DC converter, not production tested, 6 pins Non-isolated connection, standard RS232, 9 pins, J9 UART0 J10 Sync J11 Chassis DESCRIPTION Board AC input line, single-pin connection – screw type, J1 and J2 are AC input terminals, rated up to 264 VAC and maximum 7.5 A, 47 Hz to 63 Hz. Board AC input neutral, single-pin connection – screw type 12-V auxiliary to supply to external circuit on the secondary side, 2 pins External 12-V bias and sync signal, 3 pins Chassis ground, or earth connection, single-pin connection – screw type Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Test Procedure www.ti.com 8 Test Procedure 8.1 Efficiency Measurement Procedure 1. Refer to Figure 3 for basic setup to measure power conversion efficiency. The required equipment to do this measurement is listed in Section 5.1. 2. Before making electrical connections, visually check the boards to make sure there are no suspected spots of damages. 3. In this EVM package, three EVMs are included, UCD3138PFCEVM-026, UCD3138CC64EVM-030, and USB-TO-GPIO. In this measurement, the board of UCD3138PFCEVM-026 and UCD3138CC64EVM-030 is needed. 4. First install the board of UCD3138CC64EVM-030 onto the board of UCD3138PFCEVM-026. Care must be given to the alignment and the orientation of two boards, or damage may occur. Refer to Figure 4 for UCD3138CC64EVM-030 board orientation. 5. Connect the AC voltage source to J1 (Line) and J2 (Neutral). The AC voltage source should be an isolated one and meet IEC60950 requirement. Set up the AC output voltage in the range specified in Table 1, between 90 VAC and 264 VAC, between 47 Hz and 63 Hz; set up the AC source current limit to 7.5-A peak and RMS, respectively. 6. Connect an electronic load with either constant current mode or constant resistance mode. The load range is from 0 A to 0.92 A. Initial power on is recommended with 0-A load current. The load is required to receive 0 VDC to 500 VDC. 7. If the load does not have a current or a power display, a current meter is needed to insert into between the load and the board. 8. Connect a volt-meter across the load and set up the volt-meter scale 0 V to 500 V on its voltage, DC. 9. Turn on the AC voltage output and varying the load. Then the measurement can be made. WARNING Danger of Electrical Shock! High voltage present during the measurement! Danger of Heat Burn from High Temperature! Do not leave EVM powered when unattended! 8.2 Equipment Shutdown 1. Shut down AC voltage source. 2. Shut down electronic load. SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 11 Performance Data and Typical Characteristic Curves 9 www.ti.com Performance Data and Typical Characteristic Curves Figure 5 through Figure 18 present typical performance curves for UCD3138PFCEVM-026. 9.1 Efficiency 95.0% 90.0% 85.0% 115VAC 60Hz 230VAC 50Hz 80.0% 0.1 0.3 0.5 Load Current (A) 0.7 0.9 Figure 5. UCD3138PFCEVM-026 Efficiency 9.2 Power Factor 1.050 1.000 0.950 115VAC 60Hz 230VAC 50Hz 0.900 0.1 0.3 0.5 Load Current (A) 0.7 0.9 Figure 6. UCD3138PFCEVM-026 Power Factor 12 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Performance Data and Typical Characteristic Curves www.ti.com 9.3 Input Current at 115 VAC and 60 Hz 11.000% 115VAC 60Hz 230VAC 50Hz 6.000% 1.000% 0.1 0.3 0.5 Load Current (A) 0.7 0.9 Figure 7. Input Current and Voltage 115 VAC and Half Load Figure 8. Input Current and Voltage 115 VAC and Full Load SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 13 Performance Data and Typical Characteristic Curves 9.4 www.ti.com Input Current at 230 VAC and 50 Hz Figure 9. Input Current and Voltage 230 VAC and Half Load Figure 10. Input Current and Voltage 230 VAC and Full Load 14 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Performance Data and Typical Characteristic Curves www.ti.com 9.5 Output Voltage Ripple Figure 11. Output Voltage Ripple 115 VAC and Full Load Figure 12. Output Voltage Ripple 230 VAC and Full Load SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 15 Performance Data and Typical Characteristic Curves 9.6 www.ti.com Output Turn On Figure 13. Output Turn On 115 VAC and No Load Figure 14. Output Turn On 115 VAC and Full Load 16 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Performance Data and Typical Characteristic Curves www.ti.com 9.7 Total Harmonic Distortion (THD) Figure 15. UCD3138PFCEVM-026 Input Current THD 9.8 Other Waveforms Figure 16. UCD3138PFCEVM-026 Sensing Signal AC_L (TP14) or AC_N (TP7) SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 17 Performance Data and Typical Characteristic Curves www.ti.com Figure 17. UCD3138PFCEVM-026 Sensing Signal ISENSE (TP20) Figure 18. UCD3138PFCEVM-026 MOSFET VGS (top) and VDS 18 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback EVM Assembly Drawing and PCB Layout www.ti.com 10 EVM Assembly Drawing and PCB Layout The following figures (Figure 19 through Figure 24) show the design of the UCD3138PFCEVM-026 printed circuit board. PCB dimensions: L x W = 9.0 inch x 6.0 inch, PCB material: FR4 or compatible, four layers and 2-oz copper on each layer. Figure 19. UCD3138PFCEVM-026 Top Layer Assembly Drawing (top view) Figure 20. UCD3138PFCEVM-026 Bottom Assembly Drawing (bottom view) SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 19 EVM Assembly Drawing and PCB Layout www.ti.com Figure 21. UCD3138PFCEVM-026 Top Copper (top view) Figure 22. UCD3138PFCEVM-026 Internal Layer 1 (top view) 20 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback EVM Assembly Drawing and PCB Layout www.ti.com Figure 23. UCD3138PFCEVM-026 Internal Layer 2 (top view) Figure 24. UCD3138PFCEVM-026 Bottom Copper (top view) SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 21 List of Materials 11 www.ti.com List of Materials The List of Materials is Based on Figure 1 and Figure 2. Table 4. UCD3138PFCEVM-026 List of Materials QTY 22 REF DES DESCRIPTION PART NUMBER MFR 1 C1 Capacitor, tantalum, 25 V, 20%, 10 µF, 3528 TPSB106M025R180 AVX 0 0 C10, C11 Capacitor, ceramic, 50 V, X7R, 10%, open, 1206 Std Std 2 C12, C20 Capacitor, ceramic, 50 V, X7R, 10%, 1 nF, 0805 Std Std 1 C16 Capacitor, ceramic, 50 V, X7R, 10%, 0.01 µF, 0805 Std Std 0 C17, C25, C29 Capacitor, ceramic, 50 V, X7R, 10%, open, 0805 Std Std 2 C2, C3 Capacitor, metalized polyester, 250 VAC, ±20%, 47 nF, 0.472 inch x 0.925 inch ECQ-U2A473MV Panasonic 1 C21 Capacitor, tantalum, 10 V, 20%, 10 µF, 3216 TAJA106M010RNJ AVX 1 C22 Capacitor, film, 300 VAC, ±20%, 47 nF, 0.236 inch x 0.591 inch ECQ-U3A473MG Panasonic 1 C26 Capacitor, ceramic, 50 V, X7R, 10%, 1 µF, 0805 Std Std 1 C30 Capacitor, ceramic, 50 V, X7R, 10%, 330 pF, 0805 Std Std 1 C31 Capacitor, tantalum chip, 16 V, 47 µF, 0.281 inch x 0.126 inch 595D476X9016C2T Vishay 1 C32 Capacitor, ceramic, 50 V, NP0, 5%, 150 pF, 0805 Std Std 4 C33, C39, C40, Capacitor, polyester, 630 V, 10%, 47 nF, 0.256 inch x 0.650 inch C41 ECQ-E6473KF Panasonic 1 C34 Capacitor, aluminum electrolytic, 450 VDC, -40°C to 85°C, ±20%, 220 µF, 0.984 inch diameter ECOS2WP221CX Panasonic 2 C35, C36 Capacitor, ceramic, 50 V, X7R, 10%, 100 pF, 0603 Std Std 2 C37, C38 Capacitor, film, 275 VAC, ±20%, 0.47 µF, 0.236 inch x 0.591 inch ECQU2A474ML Panasonic 7 C4, C18, C19, Capacitor, ceramic, 50 V, X7R, 10%, 0.1 µF, 0805 C23, C24, C27, C28 Std Std 3 C5, C6, C7 Capacitor, metalized polyester, 250 VAC, ±20%, 4.7 nF, 0.295 inch x 0.730 inch BFC233820472 Vishay 5 C8, C9, C13, C14, C15 Capacitor, ceramic, 50 V, X7R, 10%, 0.1 µF, 0603 Std TDK 9 D1, D2, D3, D4, D6, D15, D22, D23, D25 Diode, dual Schottky, 200 mA, 30 V, SOT23 BAT54S Zetex 2 D11, D12, D24 Diode, Schottky, 500 mA, 30 V, SOD123 MBR0530T1G On Semi 2 D13, D14 Diode, Schottky rectifier, 10 A, 600 V, TO-263-2 C3D10060G CREE 1 D16 Diode, 600 V, 6 A, 400 A peak surge, P600 6A6-T Diodes 1 D17 Diode, bridge rectifier, 8 A, 600 V, 0.880 inch x 0.140 inch GBU8J Fairchild 1 D18 Diode, LED, green, 2.1 V, 20 mA, 6 mcd, 0603 LTST-C190GKT Lite On 1 D19 Diode, LED, green, 2.1 V, 20 mA, 0.9 mcd, 0.068 inch x 0.049 inch LN1371GTR Panasonic 1 D20 Diode, LED, red, 2.1 V, 20 mA, 6 mcd, 0603 LTST-C190CKT Lite On 1 D21 Diode, LED, yellow, 2.1 V, 20 mA, 6 mcd, 0603 LTST-C190YKT Lite On 1 D5 Diode, signal, 300 mA, 75 V, 350 mW, SOD-123 1N4148W-TP MICROSEMI 1 D7 Diode, ultrafast rectifier, 1 A, 200 V, SMB MURS160T3G On Semi 1 D8 Diode, dual Schottky, 200 mA, 30 V, SOT-23 BAT54C Fairchild 2 D9, D10 Diode, Schottky, 500 mA, 60 V, SOT-23 ZHCS506 Zetex 1 DB-1 Module, 5 W, auxiliary bias PS, PCB assembly, 1.200 inch x 2.200 inch PWR050 TI 1 DB-2 Control card, UCD3138 control card, PCB assembly, 3.400 inch x 1.800 inch UCD3138CCEVM030 TI Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback List of Materials www.ti.com Table 4. UCD3138PFCEVM-026 List of Materials (continued) QTY REF DES DESCRIPTION PART NUMBER MFR 1 F1 Fuse, 250 VAC, SLO-BLO, 3 AG, 7-A cart, 0.250 inch x 1.250 inch 0313007.HXP Littlefuse 1 F2 Ffuse holder, 1/4 inch, board mount, 1.54 inch x 0.30 inch BK/1A3398-07 Bussmann 1 HS1 Heatsink, TO-220, vertical mount, 15 x C/W, 0.5 inch x 0.95 inch 593002B00000G Aavid 2 HS2, HS3 Heatsink, TO-220, vertical mount, 5 x C/W, 0.5 inch x 1.38 inch 513201 Aavid 5 J1, J2, J5, J6, J11 Terminal block, 2 pin, 15 A, 5.1 mm, 0.40 inch x 0.35 inch ED120/2DS OST 1 J10 Header, male 3 pin, 100-mil spacing, 0.100 inch x 3 inch PEC03SAAN Sullins 2 J3, J4 Header, 40 pin, 2 mm pitch, 4.00 mm x 40.00 mm 87758-4016 Molex 1 J7 Terminal block, 2 pin, 6 A, 3.5 mm, 0.27 inch x 0.25 inch ED555/2DS OST 1 J8 Header, male 2 x 3 pin, 100-mil spacing, 0.20 inch x 0.30 inch PEC03DAAN Sullins 1 J9 Connector, 9-pin D, right angle, female, 1.213 inch x 0.510 inch 182-009-213R171 Norcomp 1 JMP1 Jumper, 0.400 inch length, bare, solid, bus-bar wire, AWG 16, 0.051 inch 295 SV005 ALPHA WIRE 1 K1 Relay, SPDT, 10-A miniature, 12-V coil, 0.630 inch x 0.870 inch T7NS5D1-12 Tyco 2 L1, L2 Inductor, toroid, 327 µH, vertical THT, 327 µH, 0.866 inch x 1.380 inch 7804-09-0014 Nova Magnetics 2 L3, L4 Inductor, toroid, 7.8 µH at 0 A and 3.22 µH at 20.5 A, 7.80 µH, 0.874 inch x 0.374 inch PA0431L Pulse 1 L5 IND, common mode emi suppression, 7.5 A, 2 mH at 1 kHz, 2 mH, 0.800 inch x 1.440 inch PE-62917 Pulse 3 Q1, Q4, Q5 MOSFET, N-channel, 60 V, 115 mA, 1.2 Ω, SOT23 2N7002 Fairchild 2 Q2, Q3 MOSFET, N-channel, 650 V, 9 A, 199 mΩ, TO-220V IPP60R199CP Infineon 3 Q6, Q7, Q8 Bipolar, NPN, 40 V, 200 mA, 200 mW, SC-75 MMBT3904TT1G On Semi 0 R1, R24, R40, R43, R68 Resistor, chip, 1/10 W, 1%, open, 0805 Std Std 6 R13, R15, R27, Resistor, chip, 1/4 W, 1%, 200 kΩ, 1210 R28, R29, R30 Std Std 2 R14, R16 Resistor, chip, 1/4 W, 1%, 3.83 kΩ, 1210 Std Std 4 R19, R20, R21, Resistor, chip, 1/10 W, 1%, 4.7 kΩ, 0805 R22 Std Std 1 R2 Resistor, chip, 1/10 W, 1%, 3.3 MΩ, 0805 Std Std 1 R23 Resistor, chip, 1/10 W, 1%, 3.3 kΩ, 0805 Std Std 1 R3 Resistor, wire-wound, 5 W, 5%, 50 Ω, 1.000 inch x 0.276 inch 25J50RE Ohmite 2 R31, R72 Resistor, chip, 1/4 W, 1%, 1.5 kΩ, 1210 Std Std 9 R32, R41, R44, Resistor, chip, 1/10 W, 1%, 0 Ω, 0805 R49, R52, R54, R75, R76, R77 Std Std 2 R33, R35 Resistor, chip, 1/4 W, 1%, 0 Ω, 1210 Std Std 0 R34, R36 Resistor, chip, 1/4 W, 1%, open, 1210 Std Std SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 23 List of Materials www.ti.com Table 4. UCD3138PFCEVM-026 List of Materials (continued) QTY 24 REF DES DESCRIPTION PART NUMBER MFR 7 R37, R38, R56, Resistor, chip, 1/10 W, 1%, 10 kΩ, 0805 R57, R70, R73, R74 Std Std 2 R39, R58 Resistor, chip, 1/10 W, 1%, 2 kΩ, 0805 Std Std 1 R4 Resistor, chip, 1/10 W, 1%, 5.01 kΩ, 0805 Std Std 2 R45, R79 Resistor, chip, 1/10 W, 1%, 100 Ω, 0805 Std Std 3 R47, R48, R50 Resistor, chip, 1/10 W, 1%, 1.8 kΩ, 0805 Std Std 7 R5, R8, R42, Resistor, chip, 1/10 W, 1%, 1 kΩ, 0805 R61, R80, R81, R82 Std Std 2 R53, R55 Resistor, chip, 1/10 W, 1%, 5.23 Ω, 0805 Std std 2 R59, R60 Resistor, chip, 1/10 W, 1%, 49.9 kΩ, 0805 Std Std 2 R6, R7 Resistor, metal strip, 2 W, 1%, 0.02 Ω, 0.49 inch x 0.10 inch WSR2R0200FEA Vishay Dale 2 R63, R66 Resistor, chip, 1/10 W, 1%, 15 Ω, 0805 Std Std 2 R64, R65 Resistor, chip, 1/10 W, 1%, 10 kΩ, 1206 Std std 1 R69 Resistor, chip, 1/10 W, 1%, 1.6 kΩ, 0805 Std Std 1 R71 Resistor, chip, 1/10 W, 1%, 910 Ω, 0805 Std Std 1 R78 Resistor, chip, 1/10 W, 1%, 1.1 kΩ, 0805 Std Std 12 R9, R10, R11, Resistor, metal film, 1/4 W, ±5%, 100 kΩ, 1206 R12, R17, R18, R25, R26, R46, R51, R62, R67 RC1206FR07100KL Yageo 2 U1, U3 High Voltage, High Current Op-Amp, MSOP-8 OPA350EA/250 TI 1 U2 RS-232 Transceivers with Auto Shutdown, SSOP-16 SN75C3221DBR TI 1 U4 High-Speed Low-Side Power MOSFET driver, SO8 UCC27324D TI 0 U5, U6 4-A Single Channel High-Speed Low-Side Gate Drivers, open, SOT23-6 UCC27517DBV TI 1 U7 3.3-V, 800-mA LDO Voltage Regulators, SOT-223 TLV1117-33IDCY TI 1 U8 Digital Isolators, xx Mbps, SO-8 ISO7221CD TI 1 U9 Opto-coupler, SMD-4P SFH6156-2 Vishay Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com 12 Digital PFC Description 12.1 1PFC Block Diagram 12.1.1 Single-Phase PFC Block Diagram Single-phase PFC function block diagram is shown in Figure 25. The digital controlled single-phase PFC has the same power stage as those seen in other analog controlled devices. The main difference is the line voltage is sensed then rectified inside the UCD3138 digital controller. All signals interact with UCD3138 and explained in section Section 12.2. Single-phase PFC Circuit Diagram Iin L1 D2 Vbus D1 Signal Conditioning Q1 Vs Vin EMI Filter & Inrush Relay RL Gate Driver Cb Iq1 Rs1 I_CT1 DPWM 1B Signal Conditioning Vin_L Vin_N Signal I_shunt Conditioning Vbus_sen Vbus_ov Signal Conditioning Figure 25. Digitally Controlled Single-Phase PFC System Block Diagram SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 25 Digital PFC Description 12.1.2 www.ti.com 2-Phase PFC Block Diagram A functional block diagram of a 2-phase interleaved PFC is shown in Figure 26. The digital controlled 2phase interleaved PFC has the same power stage seen in other analog controlled devices. All signals interact with UCD3138 and are explained in section 12.2. Iin L1 D3 Vbus D1 L2 D2 Signal Conditioning Vs Signal Conditioning Vin EMI Filter & Inrush Relay RL Gate Driver Q1 Q2 Iq1 Cb Iq2 Rs1 DPWM1 B DPWM 2B I_CT1 Signal I_shunt Conditioning Vin_l Signal Conditioning Vin_n I_CT2 Vbus_sen Signal Conditioning Vbus_ov Figure 26. Digitally Controlled 2-Phase PFC System Block Diagram 12.1.3 Bridgeless PFC Block Diagram A function block diagram of a bridgeless PFC is shown in Figure 27. The digital controlled bridgeless PFC has a same power stage as those seen in analog controlled. All signals interacted with UCD3138 are explained in the section Section 12.2. Iin L1 Vbus D1 L2 Signal Conditioning Vs D2 Signal Conditioning Vin EMI Filter & Inrush Relay RL Q1 Q2 Cb Gate Driver Rs1 DPWM1B Signal Conditioning DPWM2B I_CT1 I _CT2 Vin_l Vbus_sen Vin_n Vbus_ov Signal Conditioning Figure 27. Digitally Controlled Bridgeless PFC System Block Diagram 26 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com 12.2 UCD3138 Pin Definition In this EVM, the PFC DC bus voltage feedback loop control is implemented using firmware execution by the ARM7 microcontroller, while the high-speed current loop control is implemented in the digital power peripherals in the UCD3138. The DC bus voltage, AC line and AC neutral voltages are sensed using the general purpose ADC in the ARM block. This is executed while the current signal is sensed and processed using the Front-End (EADC) block in the digital power peripherals. All protection functions such as cycle-by-cycle current limiting and overvoltage protection are implemented using the high-speed analog comparators available in the UCD3138. 12.2.1 UCD3138 Pin Definition in Single-Phase PFC UCD3138 is a 64-pin device. When using the UCD3138 as a single-phase PFC controller, the pins used are defined in Figure 28. Km Ev Vref + DPWM1 Iref PI (Gv) - Fusion Power Peripheral + FE0 c Vb - A Iin Calculate 1/Vrms CLA1 (Gc) Ui OVP Cycle by cycle limit B Vrms 2 Calculate Vrms Conditioning & Rectification UCD3138 Single-phase PFC Configuration PMBus Interface DPWM1B COMP_F Vbus_ov COMP_ D I_CT1 EAP0 I_shunt AD_ 07 AD_08 Vin_L AD_ 03 Vbus_sen Vin_N UART Interface Figure 28. Definition of UCD3138 in Single-Phase PFC Control SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 27 Digital PFC Description 12.2.2 www.ti.com UCD3138 Pin Definition in 2-Phase PFC UCD3138 pin definition in 2-phase interleaved PFC control, shown in Figure 29. Fusion Power Peripheral Km Vref Ev + DPWM1 Iref PI (Gv) FE0 + - c Vb CLA 1 (Gc) Ui Iin Vrms Calculate 2 1/Vrms COMP _F Vbus_ov Cycle by cycle limit COMP _E I_CT2 Cycle by cycle limit COMP_ D I_CT1 EAP0 I_shunt AD_ 07 Vin_l AD_08 Vin_n AD_03 Vbus_sen OVP B Conditioning & Rectification Calculate Vrms UCD 3138 2-phase interleaved PFC Configuration DPWM2B DPWM2 - A PMBus Interface DPWM1B UART Interface Figure 29. Definition of UCD3138 in 2-Phase PFC Control 12.2.3 UCD3138 Pin Definition in Bridgeless PFC UCD3138 pin definition shown in bridgeless PFC control, see Figure 30. Fusion Power Peripheral Km DPWM1 Vref Ev + Vb PI (Gv) Iref + FE1 FE2 CLA 1 (Gc) Ui DPWM2B DPWM2 c - A Iin - OVP Iin Cycle by cycle limit Cycle by cycle limit B Calculate Vrms 2 1/Vrms UCD 3138 Bridgeless PFC Configuration Calculate Vrms PMBus Interface Conditioning & Rectification UART Interface DPWM1B COMP_F Vbus_ov COMP_E COMP_D I_CT2 EAP2 EAP1 I_CT2 I_CT1 AD_07 Vin_l AD_ 08 AD_03 Vin_n Vbus_sen I_CT1 Figure 30. Definition of the UCD3138 in Bridgeless PFC Control 28 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com 12.3 EVM Hardware – Introduction 12.3.1 PFC Pre-Regulator Input The power entry section, PFC pre-regulator input, as shown in Figure 31, consists of EMI input filter, AC voltage sense circuit and inrush relay control circuit. The series resistor R3 limits the inrush current. The inrush control relay K1, controlled by the UCD3138 controller, is used to bypass this resistor. The controller measures input and output voltages and decides the appropriate time for closure of this relay. Input AC voltage is scaled and conditioned, and the sensed signal is applied to the UCD3138 ADC input AD_07 and AD_08. Figure 31 also shows a DC voltage regulator D3, which converts the 12 V into 3.3 V to provide the bias for on-board 3.3 V. Figure 31. AC Power Filtering, Inrush Current Limit and AC Voltage Sense SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 29 Digital PFC Description 12.3.2 www.ti.com PFC Power Stage The PFC power stage shown in Figure 32 employs a 2-phase boost PFC topology, even though the default configuration of the EVM is single phase PFC. The power MOSFETs, Q3 and Q4, are driven by the controller’s DPWM signals, DPWM1B and DPWM2B, through UCC27324 MOSFET gate drive device. The schematic also shows that four additional signals are sensed and eventually connected to UCD3138 controller’s 12-bit ADC input pins. These four signals are the rectified AC line and neutral voltage, the DC bus voltage for voltage loop control, redundant OVP protection and input current. The sensed signals are scaled and conditioned to a range of 0 V to 2.5 V which corresponds to the full scale range of the ADC. For single-phase PFC and 2-phase interleaved PFC, the PFC stage total input current is differentially sensed across the sense resistors, R6 and R7, and then conditioned by the current sense amplifier U1. This is shown in Figure 32. This sensed input current signal is scaled and conditioned to a range of 0 V to 1.6 V corresponding to the range of the on-chip DAC associated with the error ADC0 (EADC0). In DCM mode, the inductor current oscillates between the inductor and switch node equivalent capacitor. As a result, the inductor current goes to negative, but the negative current will not show up at the output of the current amplifier. Therefore, the amplifier output does not represent the total inductor current. In order to sense this negative current, an offset is added to the amplifier’s positive input terminal, this is shown as R113 in Figure 32. For bridgeless PFC, the PFC stage input current is sensed by current transformer T2 and T3. The output signal of T2 and T3 is rectified, scaled and conditioned to a range of 0 V to 1.6 V corresponding to the range of the on-chip DAC associated with the error ADC1 (EADC1) and error ADC2 (EADC2). 30 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated C4 2 R5 1k R69 1.6k BAT54S D4 +3_3V C18 0.1uF (J3-7) DPWM-3A SYNC_IN (J3-15) 6 49.9k R59 4 R60 49.9k 3 2 100pF C36 R2 3.3M 2 R58 R39 +3_3V R61 1k HS1 TP21 TP18 BAT54S D2 1 47nF C22 1 C32 150pF R45 Interleaved PFC: Jump across E6 and E4, and E1 and E5. D17 GBU8J C23 1 SH1 D7 MURS160T3 0.02 0.02 1 1 1 1 4.7nF E5 E4 2 JMP1 R17 100k GND_EARTH R18 100k 1 DGND 1 SWITCH_NODE C7 1 E1 E3 E6 1 2 0.1uF 1 E2 R11 100k R12 100k 1.8k R48 PGND 100 R6 R7 BAT54S BAT54C D8 2k 2k +3_3V D23 IPM (J4-6) Single-phase PFC: default connection E6 to E4. Bridgeless PFC: Jump across E2 and E6, and E3 and E1. TP16 U1 OPA350EA 7 100pF C35 +3_3V 2 0.01uF C16 (J4-8) IIN_SENSE U3 R4 OPA350EA 5.01k 910 Q5 2N7002 AC_NEU_PFC AC_L_PFC TP20 (J4-40) ISENSE_SHUNT 0.1uF R71 R43 R41 1 +3_3V (J4-30) CT_2 6A6-T R44 D15 BAT54S D16 +12V_EXT (J3-5) DPWM-2A (J3-6) DPWM-2B (J3-4) DPWM-1B (J3-3) R40 DPWM-1A +12V_EXT (J4-12) CT_1 0 1 1 0 2 1 +3_3V D22 TP6 C11 C10 2 1 N/C IN- VDD 6 10k IN- OUT 1 OUTB 5 Parts not used R64 U6 N/C 8 OUTA 7 ZHCS506 IN+ GND VDD 4 INB 3 GND 2 INA R63 15 U4 1 UCC27324D IN+ GND VDD U5 OUT ZHCS506 R65 10k D9 D10 1 15 R66 BAT54S TP19 TP25 R54 0 3 5.23 3 R57 10k 1 MBR0530 D12 R52 0 2 R56 10k 2 3 T2 Q2 7 8 TP23 C24 TP17 47nF C40 TP22 R47 1.8k R46 100k R51 100k R67 100k R62 100k 47nF D1 + - J6 Vbus + 220uF C34 J5 BAT54S +3_3V BUS+ C19 0.1uF C41 2 (J4-10) VBUS_SENSE TP15 100k R9 R10 100k R25 100k R26 100k Vbus = 390VDC, Iout = 0.92A 47nF 47nF 0.1uF C39 2 1.8k R50 C33 HS2 +3_3V (J4-16) VBUS_OV HS3 SWITCH_NODE BAT54S D3 TP24 C3D10060G D14 D13 C3D10060G 8 7 PA1005.050 1 Q3 IPP60R199CP D11 MBR0530 327uH L1 1uF C26 T1 PA1005.050 1 +12V_EXT R55 47uF C31 + R53 5.23 1 TP26 L2 327uH IPP60R199CP 3 www.ti.com Digital PFC Description Figure 32. PFC Power Stage Digitally Controlled Single-Phase PFC Pre-Regulator 31 Digital PFC Description 12.3.3 www.ti.com Non-Isolated UART Interface The non-isolated UART interface shown in Figure 33 is used to control the PFC module from the host PC over the serial port. It is also used to monitor some of the parameters, debug and test firmware functions. Figure 33. Non-Isolated PFC Module to Host PC Interface 32 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com 12.3.4 Isolated UART Interface The isolated UART interface shown in Figure 34 is used to communicate with another digital controller, for example one used in a secondary referenced isolated DC-to-DC converter application. Figure 34. Isolated UART and AC_DROP Signal Interface SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 33 Digital PFC Description 12.3.5 www.ti.com Interface Connector of Control Card The interface connector between the PFC board and the UCD3138 controller board is shown in Figure 35. Figure 35. UCD3138 Controller Board and PFC Board Signal Interface Connector Diagram 34 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com 12.3.6 UCD3138 Resource Allocation for PFC Control Table 5. J3 and J4 Pin Assignment HEADER PIN NUMBER UCD3138 CONTROL CARD PIN NAME J3-1 DPWM_0A RC filter for debug monitoring J3-2 DPWM_0B Not used J3-3 DPWM_1A Not used(available as an option for PFC PWM1) J3-4 DPWM_1B PFC PWM1 J3-5 DPWM_2A Not used(available as an option for PFC PWM2) J3-6 DPWM_2B PFC PWM2 J3-7 DPWM_3A PFC ZVS control J3-8 DPWM_3B AC drop indicator signal J3-9 DGND Digital ground GND1 J3-10 DGND Digital ground GND1 J3-11 FAULT-0 Inrush relay control J3-12 Not used Not used J3-13 FAULT-1 LED 1 J3-14 Not used Not used DESCRIPTION J3-15 SYNC J3-16 Not used Not used J3-17 FAULT-2 Not used J3-18 Not used Not used J3-19 Not used Not used J3-20 Not used Not used J3-21 Not used Not used J3-22 FAULT-3 Not used J3-23 SCI_TX1 SCI_TX1 J3-24 SCI_RX1 SCI_RX1 J3-25 PWM0 LED 2 J3-26 PWM1 LED 3 J3-27 Not used Not used J3-28 Not used Not used J3-29 TCAP Not used J3-30 Not used Not used J3-31 SCI TX0 SCI TX0 J3-32 SCI TX0 SCI RX0 J3-33 INT-EXT Not used J3-34 EXT-TRIG Not used J3-35 DGND Not used J3-36 RESET* Not used J3-37 DGND Digital ground GND1 J3-38 DGND Digital ground GND1 J3-39 +12V_EXT J3-40 3.3VD Not used J4-01 AGND Analog ground GND2 J4-02 Not used J4-03 AGND Analog ground GND2 J4-04 AD_00 PMBus address J4-05 AGND Analog ground GND2 SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Sync input signal for PFC stage External +12V DC supply Not used Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 35 Digital PFC Description www.ti.com Table 5. J3 and J4 Pin Assignment (continued) 36 HEADER PIN NUMBER UCD3138 CONTROL CARD PIN NAME J4-06 AD_01 IPM J4-07 AGND Analog ground GND2 J4-08 AD_02 PFC input current sense J4-09 AGND Analog ground GND2 J4-10 AD_03 PFC BUS voltage sense J4-11 AGND Analog ground GND2 J4-12 AD_04 PFC MOSFET Q3 current sense J4-13 AGND Analog ground GND2 J4-14 AD_05 Not used J4-15 AGND Analog ground GND2 J4-16 AD_06 PFC BUS voltage sense(for OVP) J4-17 AGND Analog ground GND2 J4-18 AD_07 PFC Vin line voltage sense J4-19 AGND Analog ground GND2 J4-20 AD_08 PFC Vin neutral voltage sense J4-21 AGND Analog ground GND2 J4-22 AD_09 Not used J4-23 AGND Analog ground GND2 J4-24 AD_10 Not used J4-25 AGND Analog ground GND2 J4-26 AD_11 Not used J4-27 AGND Analog ground GND2 J4-28 AD_12 Not used J4-29 AGND Analog ground GND2 J4-30 AD_13 PFC MOSFET Q4 current sense J4-31 AGND Analog ground GND2 J4-32 Not used Not used J4-33 Not used Not used J4-34 Not used Not used J4-35 EAN2 Analog ground GND2 J4-36 EAP2 PFC MOSFET Q4 current sense J4-37 EAN1 Analog ground GND2 J4-38 EAP1 PFC MOSFET Q3 current sense J4-39 EAN0 Analog ground GND2 J4-40 EAP0 PFC Input current sense DESCRIPTION Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com 12.4 EVM Firmware – Introduction The referenced firmware provided with the EVM is intended to demonstrate basic PFC functionality, as well as some basic PMBus communication and primary and secondary communication. A brief introduction to the firmware is provided in this section. There are three timing levels in the current version of the firmware, as shown in Figure 36: 1. Fast Interrupt (FIQ) 2. Standard Interrupt (IRQ) 3. Background Standard interrupt Background Loop · · · · · · System initialization Voltage feed forward System monitoring Dynamic coefficient adjustment PMBus communication UART transmit data · · · · · · · · · ADC measurement State machine Vrms calculation Voltage loop calculation Current reference calculation AC drop detection UART receive data Frequency dithering ZVS control · OVP Fast interrupt Figure 36. Firmware Structure Overview Almost all firmware tasks occur during the standard interrupt. The only exceptions are the serial interface and PMBus tasks, which occur in the background, and the Over Voltage Protection (OVP), which is handled by the FIQ. For more details, please refer to the source code and training material. SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 37 Digital PFC Description 12.4.1 www.ti.com Background Loop The firmware starts from function main(). In this function, after the system initialization, it goes to an infinite loop. All the non-time critical tasks are put in this loop, it includes: • Calculate voltage feed forward. • Clear current offset at zero load. • System monitoring. • PMBus communication. • Primary and secondary UART communication. NOTE: User can always add any non-time critical functions in this loop. 12.4.2 Voltage Loop Configuration The voltage control loop is a pure firmware loop. VOUT is sensed by a 12-bit ADC, and compared with voltage reference. The error goes into a firmware Proportional-Integral (PI) controller, and its output is used to do current loop reference calculations. 12.4.3 Current Loop Configuration Current loop consists of several modules: • Front End (FE) Module, to configure the AFE block gain. – For single phase PFC, AFE0 is used. • Filter Module, to configure the current loop compensation. – FILTER1 is used. • DPWM Module, to generate the PWM signal driving PFC. – For single phase PFC, DPWM1B is used. NOTE: Loop Mux Module, to configure interconnection among front end, filter and DPWM modules. 12.4.4 Interrupts There are two interrupts, the Standard Interrupt (IRQ), and the Fast Interrupt (FIQ). • IRQ contains the state machine and most of the PFC control firmware. • FIQ is used in relation to implementing OVP protections. 38 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com 12.5 State Machine The PFC hiccups once an over-voltage condition is detected. Only very serious over voltage causes PFC shut down and latch. Figure 37 is the PFC state machine diagram shown below. Idle Vin > 90V Vin Relay close after Vout >420 V PFC shutdown and latch < 85 V 100ms Ramp up Vout = 390V Vout >420V PFC hiccup PFC on Vout >435V Vout < 380 V Figure 37. PFC State Machine 12.6 PFC Control Firmware The PFC Control Firmware is almost all implemented in the IRQ function, which includes: • ADC measurement • State machine • VRMS calculation • Voltage loop calculation • Current reference calculation • AC drop detection • UART receive data • Frequency dithering • ZVS control SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 39 Digital PFC Description www.ti.com 12.7 System Protection 12.7.1 Cycle-by-Cycle Current Protection (CBC) The cycle-by-cycle current protection is achieved through AD04 (Comparator D) and AD13 (Comparator E). Once the current signal has exceeded the threshold, the PWM is chopped to limit the current. 12.7.2 Over-Voltage Protection (OVP) There are two levels of OVP that exist. Under fault condition if the output voltage reaches 420 V, a nonlatched OV protection is activated. Under this condition the output oscillates between 420 V and 380 V. In the event of a more severe overvoltage condition, if the output reaches to 435 V, the latched overvoltage protection is activated and the unit is completely shut off. The FIQ is currently used only for latched over-voltage protection. It is triggered by the comparator on AD06 (Comparator F). Comparator F’s threshold is set above the limit for the DC bus voltage, and the logic on DPWM1 and DPWM2 is set up to turn off DPWM1B and DPWM2B when the threshold is exceeded. In the current configuration, the only way to restart the PFC after a latched OVP fault is to reset the processor. 12.8 PFC System Control The system control block diagram is shown in Figure 38. In steady state, the average current-mode control is used with switching frequency fixed at 100 kHz. At low line below 160 VAC and light load, ZVS and valley control is used to reduce the switching losses and reduce total harmonic distortion. Figure 38. Single-Phase PFC System Control Diagram 40 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com 12.8.1 Average Current Mode Control The current loop is shown in the dashed line of Figure 38. The current reference signal IREF is calculated as: æ 1 IREF = K m ´ A ´ C ´ B = K m ´ (Uv )´ (K f ´ VIN )´ ç ç V2 è RMS ö ÷ ÷ ø where • • • • Km – multiplier gain A – voltage loop output B – 1/(VIN(rms))2 C – VIN (1) For sine wave input, the multiplier gain Km is expressed as, K m = 0.5 ´ K f ´ VMIN(pk) (2) In Figure 27, Ks and Kf are scaling factors. For further detail, please refer to reference , and . 12.8.2 ZVS and Valley Control Please refer to the reference and . 12.9 Current Feedback Control Compensation Using PID Control A functional block diagram of single-phase PFC control loop is shown in Figure 39. PID control is usually used in the feedback loop compensation in digitally controlled power converters. Described below are several aspects using PID control in the single-phase PFC feedback control loop. RL Vout LB V in R LOAD R D S_ON R D1 Vsense C P1 Gate driver RS RD 2 CP2 R3 R4 Iref PID Compensator K P , K I, K D, and Ts Analog - to - PWM Gain = 1 Figure 39. Single-phase PFC Feedback Loop Using PID Control SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 41 Digital PFC Description 12.9.1 www.ti.com Loop Compensation from Poles and Zeros in s-Domain PID control in the UCD3138 CLA for current control loop in single-phase PFC is formed in the following equation in z-domain: Gc (z) = KP + KI 1 + z -1 1 - z -1 + KD 1 - z -1 1 - a´z -1 (3) If Equation 3 is converted to the s-domain equivalent using the bilinear transform, the result has two forms. One is with two real zeros: æ s öæ s ö + 1÷ ç + 1÷ ç wz1 ø è wz2 ø Gcz (s) = K 0 è æ s ö sç + 1÷ ç wp1 ÷ è ø (4) The two zeros can also be presented with complex conjugates and in such case, æ s2 ö s ç + + 1÷ ç w2 Q ´ wr ÷ r ø Gcz (s) = K 0 è æ s ö sç + 1÷ ç wp1 ÷ è ø Two complex conjugate zeros are expressed as: wr æ 2ö wz1, z2 = ç1 ± 1 - 4 ´ Q ÷ 2´Q è ø wr = wz1 ´ wz2 Q= (6) (7) wz1 ´ wz2 wz1 + wz2 (8) The complex conjugate zeros become real zeros when: Q £ 0.5 42 (5) Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated (9) SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Description www.ti.com The sensing circuit in the current loop forms a low-pass filter and adds a pole to the loop: 1 wpcs = R 4 ´ Cp2 R Hcs (s) = Rs ´ 4 R3 (10) 1 s +1 wpcs (11) The current closed-loop transfer function is then shown below: GM (s) ´ GPID (s) Gcs (s) = 1 + GM (s) ´ GPID (s) ´ Hcs (s) where • GM(s) is the transfer function of current loop before adding in PID. (12) The parameters can be calculated with the assumption of current sensor sampling cycle TS much smaller than the time constant of the PFC choke LB and RB, where LB is the choke inductance and RB is the choke DC resistance. Choose the sampling frequency to meet: L 1 Ts = £ 0.05 ´ B fs RB (13) When the above assumption is true, the delay effect from the sampling can be ignored and the parameters can be determined after we know where the poles and zeros should be positioned. KP = ( K 0 ´ wp1 ´ wz1 + wp1 ´ wz2 - wz1 ´ wz2 wp1 ´ wz1 ´ wz2 ) (14) K ´ Ts KI = 0 2 KD = a= (15) ( )( ) wp1 ´ wz1 ´ wz2 (Ts ´ wp1 + 2 ) 2 ´ K 0 ´ wp1 - wz1 ´ wp1 - wz2 (16) 2 - Ts ´ wp1 2 + Ts ´ wp1 SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback (17) Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 43 Digital PFC Description 12.9.2 www.ti.com Feedback Loop Compenstaion Tuning with PID Coefficients When fine tuning the feedback control loop, one would like to know each parameter in PID how to affect the control loop characteristics without going through complicated description of the above equations. Table 6 below helps this and is visually shown in Figure 40. Table 6. Tuning with PID Coefficients Control Parameters Impact on bode plot KP Increasing KP • Pushes up the minimum gain between the two zeros. • Moves the two zeros apart. KI Increasing KI • Pushes up integration curve at low frequencies. • Gives a higher low frequency gain. • Moves the first zero to the right. KD Increasing KD • Shifts the second zero left. • Does not impact the second pole. α Increasing α • Shifts the second pole to the right. • Shifts the second zero to the right. Ts = 1 / fs Increasing the sampling frequency fs : • Causes the whole Bode plot to shift to right. Increasing fs causes the whole Bode plots to shift to right Pole 1 Gain Pole 2 KI KD KP Zero 1 Zero 2 Frequency Figure 40. Tuning PID Parameters 12.9.3 Feedback Loop Compensation with Multiple-Set of Parameters The digital control provides more flexibility to establish PID coefficients in multiple sets to adapt various operation conditions. For example, the single-phase PFC EVM has two sets of PID coefficients, set A is for low-line operation when the line voltage is between 90 VAC and 160 VAC; while set B is for high-line operation when the line voltage is above 160 VAC until 264 VAC. 12.10 Voltage Feedback Loop The voltage feedback loop is a slow response loop with cross-over frequency is usually designed below 20 Hz to reduce the effect from AC line frequency. PI control is usually sufficient in this feedback loop control. During high-transient operation which causes large bulk-voltage deviation greater than certain values, for example, over 5%, digital control can adapt this high-transient requirement to use a different set of PI coefficients. 44 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Evaluating the Single-Phase PFC with GUI www.ti.com 13 Evaluating the Single-Phase PFC with GUI Further evaluation of UCD3138PFCEVM-026 can be made with the designer GUI while no need to directly access the firmware codes. The designer GUI, called Fusion Digital Power Designer is described in Section 13.1. The description is given on how to use the GUI to make further evaluation of UCD3138PFCEVM-026. 13.1 Graphical User Interface (GUI) Collectively, the GUI is called Texas Instruments Fusion Digital Power Designer. The GUI serves the interface for several families of TI digital control devices including the family of UCD31xx, that is the UCD3138 as its one member. The GUI can be divided into two main categories, Designer GUI and Device GUI. In the family of UCD31xx, each EVM is related to a particular Designer GUI to allow users to retune/re-configure a particular EVM in that regarding with existing hardware and firmware. Device GUI is related to a particular device to access its internal registers and memories. UCD3138PFCEVM-026 is used with its control card UCD3138CC64EVM-030 where UCD3138 device is placed. The firmware for single-phase PFC control is loaded into UCD3138CC64EVM-030 board through device GUI. How to install the GUI is described in the user’s guide Using the UCD3138CC64EVM-030 (TI Liturature Number, SLUU886). The designer GUI is installed at the same time when installing the device GUI. 13.2 Open the Designer GUI To open the Designer GUI, click the start with the path as shown in Figure 41. Figure 41. Start the Designer GUI SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 45 Evaluating the Single-Phase PFC with GUI www.ti.com 13.3 Overview of the Designer GUI When the designer GUI is open, it identifies the connected board by the ID in the firmware. Figure 42 shows the opened GUI. The Designer GUI provides various assistance to access the firmware codes indirectly. For the full set of the functions that the Designer GUI can provide, please refer to the user’s manual. In this application note, we focus on how to make monitoring, board re-configuring and re-tuning to show basic aspects on how to use the GUI in a typical power supply design evaluation on a bench test. Figure 42. Designer GUI Overview 13.3.1 Monitor On the lower left corner of that shown in Figure 42, there are four tabs, called Configure, Design, Monitor and Status. Clicking each tab brings a unique page to the front of that page. The clicked tab is highlighted in blue. Figure 42 shows Monitor tab was clicked. The page shows all variables in monitoring with UCD3138 single-phase PFC. These variables are communicated through PMBus. Adding more variables in Monitoring is possible but has to be executed through the firmware code change and re-compile process. 46 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Evaluating the Single-Phase PFC with GUI www.ti.com 13.3.2 Status When click tab Status, its corresponding page is shown in Figure 43. What can be seen is all entries are grayed out. This means nothing was designed to show from this tab. The page of Status provides all possible PMBus supported variables in communication. To activate these variables in communication, corresponding firmware codes need to be in place. As what can be seen is all in gray which means none of the variables is established in communication in this page. Figure 43. Page of Status 13.3.3 Design and Configure If click Design or Configure two more different pages will be brought up to the front. These pages provide more functions and described in the following section. SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 47 Monitoring, Re-configuring and Re-tuning with Designer GUI 14 www.ti.com Monitoring, Re-configuring and Re-tuning with Designer GUI In this section, we describe how to use the Designer GUI to evaluate the single-phase PFC board, UCD3138PFCEVM-026 14.1 Power On and Test Procedure Power stage connection is the same as described earlier. Additionally to that setup, PMBus connection is required through USB-to-GPIO as shown in Figure 44. After all connections are made, apply an AC source voltage with a specified value to the board AC input and refer to the other steps in the UCD3138PFCEVM-026 user’s guide. Open and start the “Fusion Digital Power Designer” GUI following the steps described in Section 13.2 and Section 13.3. Once PFC preregulator is up and running and the GUI is opened, then it is ready to use the Designer GUI to make evaluation. Figure 44. Hardware Setup for Evaluation with Designer GUI 48 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback www.ti.com Monitoring, Re-configuring and Re-tuning with Designer GUI 14.2 Monitoring with GUI The page shows three variables in monitoring: • VOUT – PFC output bulk voltage. • OV Fault – PFC output bulk voltage over voltage fault threshold. • Freq – switching frequency in normal operation. Among three monitoring variables, we can see VOUT and OV Fault can be accessed by write to change them to a different value into the firmware. However, when attempting to do so, make sure to understand the design of all aspects to avoid any possible damage. As a warning to help avoid damage, if one wants to modify “Vout” or “OV Fault” to a different value, the recommendation is 375 V to 395 V for VOUT, and not exceeding 430 V for OV Fault. Also, logically, VOUT has to be smaller than OV Fault. One may modify them to other values but before doing that, fully understanding the design is needed to find out any other parameters needed to change accordingly such that not over stress the components in use or inducing any stability concerns. SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 49 Monitoring, Re-configuring and Re-tuning with Designer GUI www.ti.com 14.3 Configuration and Re-configuring with GUI After click the tab of “Configure”, the corresponding page called “Configuration” is shown as in Figure 45. The variables shown in the page are the existing configuration. Most of them are fixed and can only be modified through firmware codes. One can designate which and how many variables can be re-configured in this page through firmware codes change. With the single-phase PFC board, there are three variables can be re-configured through this page without going through the firmware codes. As mentioned before, modify these variables to a different value requires fully understanding the design to avoid possible damage. • VOUT – PFC output bulk voltage • OV Fault – PFC output bulk voltage over voltage fault threshold • Freq – switching frequency in normal operation. As mentioned earlier, the firmware version in use is shown in the page of “Configuration”. The firmware version is called DEVICE_ID. When place the mouse curser on, the version indication is shown, UCD3100ISO1 | 0.0.8.0129 | 111209 The firmware version or Device_ID is divided by two vertical lines. UCD3100ISO1 is the IC device family code. Between the two vertical lines, the show is the firmware recompilation indicator. The last six digits are date of the last time the recompilation was made. Figure 45. Page of Configuration 50 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback www.ti.com Monitoring, Re-configuring and Re-tuning with Designer GUI 14.4 Feedback Control Loop Tuning and Re-Tuning with GUI After click the tab of Designer, the page is shown as in Figure 46. In the UCD3138PFCEVM-026, this page is dedicated to the feedback loop design. This page including two sub-pages. One is for the current loop PID coefficients and the other is for the voltage feedback loop which uses PI control. Figure 46. Page of Designer SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 51 Monitoring, Re-configuring and Re-tuning with Designer GUI 14.4.1 www.ti.com Current Loop Evaluation Figure 46shows the current control loop. To evaluate the design or to re-tune the current loop PID coefficients, the first thing to do is to check all the parameters up to date in use. This can be done by click Schematic View to bring out a new window with the schematics shown in Figure 47. If any values are different from those in the physical circuitry, one needs to update them before doing any control loop retuning. Figure 47. Schematics of Single-Phase PFC. 52 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Monitoring, Re-configuring and Re-tuning with Designer GUI www.ti.com 14.4.2 Current Loop Re-Tuning The current loop PID coefficients can be re-tuned following the approaches described in section 1.4. Scroll down the window that is shown in Figure 46, then Figure 48 is obtained. Figure 37 shows the current loop compensation details. There are two sets of PID coefficients used in the current control loop, Set A and Set B. In Figure 48 Set A is shown. The corresponding bode plots are shown on the left in Figure 48. Coefficients of Set A are used when input line voltage is between 90 VAC and 160 VAC. Coefficients of Set B are used when input line voltage is above 160 VAC till the maximum input of 264 VAC. The actual PID control makes re-scale of the values shown in Figure 48 when used inside the UCD3138. æ ö SC 1 + z -1 1 - z -1 1000 GPID (z) = ç KP + KI + KD ÷ ´ 2 ´ KCOMP ´ 2-19 ´ -1 -8 -1 ÷ 4 ç 1- z 1- 2 ´ a ´ z ø 2 ´ (PRD + 1) è (18) PRD is a threshold value used to generate DPWM cycle ending point. The DPWM is centered on a period counter which counts up from 0 to PRD, and then is reset and starts over again. In the single-phase PFC design, KCOMP is set up equal to PRD. In the current control page of the Design, PID coefficients can be re-tuned. The GUI also provides conversion results from PID coefficients to the zeros and the pole by clicking Mode to select a corresponding conversion. One can also change the zeros and the poles and then use the GUI to convert to PID coefficients by clicking Mode to select back to KP, KI, and KD. Be aware that from the two zeros can be complex conjugates. When a set of PID coefficients does make complex conjugate zeros, the GUI pumps up a message to notify that Q and ωr have to be generated instead of real zeros. In this case, the users may need to calculate the complex conjugate zeros based on Equation 6. Figure 48. Current Loop Re-Tuning SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 53 Monitoring, Re-configuring and Re-tuning with Designer GUI 14.4.3 www.ti.com Voltage Loop Evaluation and Re-tuning Voltage loop can be evaluated and re-tuned in a similar way. Figure 49 shows voltage loop PI control coefficients and corresponding bode plots. The voltage loop PI control is implemented with software and has the below form, 1 GPI (z) = KP + KI 1 - z -1 (19) There are two sets of the PI coefficients for voltage loop control. In normal operation, the control is with Linear Coefficients. In transient when the PFC output bulk voltage exceeds the defined Error Threshold, for example, 16.0 V, as shown, the PI control coefficients are changed to Non-Linear Coefficients to achieve better transient response and to eliminate the output large deviation faster. The output error threshold is usually within 5% of the output set point, or within 20 V on 390-VDC output. Figure 49. Voltage Loop PI Control Re-Tuning 54 Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digital PFC Firmware Development www.ti.com 15 Digital PFC Firmware Development Please contact TI for additional information regarding UCD3138 digital PFC firmware development. 16 References 1. 2. 3. 4. 5. UCD3138 Datasheet, SLUSAP2, 2012 UCD3138CC64EVM-030 Evaluation Module and User’s Guide, SLUU886, 2012 SEM600, 1988, High Power Factor Pre-regulator for Off-line Power Supplies SEM700, 1990, Optimizing the Design of a High Power Factor Switching Pre-regulator TI Application Note SLUA644, “PFC THD Reduction and Efficiency Improvement by ZVS or Valley Switching”, April 2012. 6. Zhong Ye and Bosheng Sun, “PFC Efficiency Improvement and THD Reduction at Light Loads with ZVS and Valley Switching”, APEC 2012, pp 802-806 7. UCD3138 Digital Power Peripherals Programmer’s Manual (please contact TI) 8. UCD3138 Monitoring and Communications Programmer’s Manual (please contact TI) 9. UCD3138 ARM and Digital System Programmer’s Manual (please contact TI) 10. UCD3138 Isolated Power Fusion GUI User Guide (please contact TI) SLUU885B – March 2012 – Revised July 2012 Submit Documentation Feedback Digitally Controlled Single-Phase PFC Pre-Regulator Copyright © 2012, Texas Instruments Incorporated 55 EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods. Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from the date of delivery for a full refund. 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TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein. REGULATORY COMPLIANCE INFORMATION As noted in the EVM User’s Guide and/or EVM itself, this EVM and/or accompanying hardware may or may not be subject to the Federal Communications Commission (FCC) and Industry Canada (IC) rules. For EVMs not subject to the above rules, this evaluation board/kit/module is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES-003 rules, which are designed to provide reasonable protection against radio frequency interference. Operation of the equipment may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference. General Statement for EVMs including a radio User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally allocated frequency and power limits. Any use of radio frequencies and/or power availability of this EVM and its development application(s) must comply with local laws governing radio spectrum allocation and power limits for this evaluation module. It is the user’s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization. For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant Caution This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Interference Statement for Class A EVM devices This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. For EVMs annotated as IC – INDUSTRY CANADA Compliant This Class A or B digital apparatus complies with Canadian ICES-003. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Concerning EVMs including radio transmitters This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concerning EVMs including detachable antennas Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada. Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de l'utilisateur pour actionner l'équipement. Concernant les EVMs avec appareils radio Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur. SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER 【Important Notice for Users of this Product in Japan】 】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan, Use this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product, or Use of this product only after you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product. Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp 【ご使用にあたっての注】 本開発キットは技術基準適合証明を受けておりません。 本製品のご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。 1. 2. 3. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用いただく。 実験局の免許を取得後ご使用いただく。 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 　　　上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・インスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル http://www.tij.co.jp SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use. It is intended solely for use for preliminary feasibility evaluation in laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end product. Your Sole Responsibility and Risk. You acknowledge, represent and agree that: 1. 2. 3. 4. You have unique knowledge concerning Federal, State and local regulatory requirements (including but not limited to Food and Drug Administration regulations, if applicable) which relate to your products and which relate to your use (and/or that of your employees, affiliates, contractors or designees) of the EVM for evaluation, testing and other purposes. You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable regulatory requirements, and also to assure the safety of any activities to be conducted by you and/or your employees, affiliates, contractors or designees, using the EVM. Further, you are responsible to assure that any interfaces (electronic and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard. You will employ reasonable safeguards to ensure that your use of the EVM will not result in any property damage, injury or death, even if the EVM should fail to perform as described or expected. You will take care of proper disposal and recycling of the EVM’s electronic components and packing materials. Certain Instructions. It is important to operate this EVM within TI’s recommended specifications and environmental considerations per the user guidelines. Exceeding the specified EVM ratings (including but not limited to input and output voltage, current, power, and environmental ranges) may cause property damage, personal injury or death. If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during normal operation, please be aware that these devices may be very warm to the touch. As with all electronic evaluation tools, only qualified personnel knowledgeable in electronic measurement and diagnostics normally found in development environments should use these EVMs. Agreement to Defend, Indemnify and Hold Harmless. You agree to defend, indemnify and hold TI, its licensors and their representatives harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of or in connection with any use of the EVM that is not in accordance with the terms of the agreement. This obligation shall apply whether Claims arise under law of tort or contract or any other legal theory, and even if the EVM fails to perform as described or expected. Safety-Critical or Life-Critical Applications. If you intend to evaluate the components for possible use in safety critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, such as devices which are classified as FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES 1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions. 1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions set forth herein but rather shall be subject to the applicable terms and conditions that accompany such Software 1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned, or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production system. 2 Limited Warranty and Related Remedies/Disclaimers: 2.1 These terms and conditions do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License Agreement. 2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM to User. Notwithstanding the foregoing, TI shall not be liable for any defects that are caused by neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any way by an entity other than TI. Moreover, TI shall not be liable for any defects that result from User's design, specifications or instructions for such EVMs. Testing and other quality control techniques are used to the extent TI deems necessary or as mandated by government requirements. TI does not test all parameters of each EVM. 2.3 If any EVM fails to conform to the warranty set forth above, TI's sole liability shall be at its option to repair or replace such EVM, or credit User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day warranty period. 3 Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter. 3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant: CAUTION This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Interference Statement for Class A EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • • • • Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 3.2 Canada 3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 Concerning EVMs Including Radio Transmitters: This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concernant les EVMs avec appareils radio: Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Concerning EVMs Including Detachable Antennas: Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur 3.3 Japan 3.3.1 Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に 輸入される評価用キット、ボードについては、次のところをご覧ください。 http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 3.3.2 Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified by TI as conforming to Technical Regulations of Radio Law of Japan. If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required by Radio Law of Japan to follow the instructions below with respect to EVMs: 1. 2. 3. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan, Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to EVMs, or Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan. SPACER SPACER SPACER SPACER SPACER 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 2. 3. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 実験局の免許を取得後ご使用いただく。 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER 4 EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information related to, for example, temperatures and voltages. 4.3 Safety-Related Warnings and Restrictions: 4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or property damage. If there are questions concerning performance ratings and specifications, User should contact a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative. During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit components may have elevated case temperatures. These components include but are not limited to linear regulators, switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the information in the associated documentation. When working with the EVM, please be aware that the EVM may become very warm. 4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems. User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees, affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or designees. 4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal, state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local requirements. 5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as accurate, complete, reliable, current, or error-free. SPACER SPACER SPACER SPACER SPACER SPACER SPACER 6. Disclaimers: 6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY WRITTEN DESIGN MATERIALS PROVIDED WITH THE EVM (AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS. 6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS AND CONDITIONS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR IMPROVEMENT MADE, CONCEIVED OR ACQUIRED PRIOR TO OR AFTER DELIVERY OF THE EVM. 7. USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES, EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS AND CONDITIONS. THIS OBLIGATION SHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED. 8. Limitations on Damages and Liability: 8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE TERMS ANDCONDITIONS OR THE USE OF THE EVMS PROVIDED HEREUNDER, REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING, OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED. 8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY WARRANTY OR OTHER OBLIGATION ARISING OUT OF OR IN CONNECTION WITH THESE TERMS AND CONDITIONS, OR ANY USE OF ANY TI EVM PROVIDED HEREUNDER, EXCEED THE TOTAL AMOUNT PAID TO TI FOR THE PARTICULAR UNITS SOLD UNDER THESE TERMS AND CONDITIONS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM AGAINST THE PARTICULAR UNITS SOLD TO USER UNDER THESE TERMS AND CONDITIONS SHALL NOT ENLARGE OR EXTEND THIS LIMIT. 9. Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s) will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s), excluding any postage or packaging costs. 10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas, without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas. Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2015, Texas Instruments Incorporated spacer IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. 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