STEVAL-IHT001V1

STEVAL-IHT001V1 Thermostat control demonstration board for refrigerators, based on the ST7Lite39 Data brief Features ■ Power supply: 220 Vac ■ Power output: 36 W ■ Boost topology ■ Discontinuous-conduction mode ■ RoHS compliant ) s ( ct u d o r P e Description The STEVAL-IHT001V1demonstration board is a complete reference system for a simple costeffective PFC (power factor corrector) using bipolar transistors and is intended for low-tomedium power HF ballasts. The proposed bipolar PFC solution targets the low-cost HF ballast market up to 80 W as it provides a simple cost-effective solution without sacrificing THD and PF levels. No additional ICs are required for the PWM signal as the device uses just a power bipolar transistor and a closedloop feedback which performs the duty cycle modulation and output power regulation. ) (s s b O t e l o STEVAL-IHT001V1 t c u d o r P e The active PFC solution with bipolar transistor adopts the boost topology operating in discontinuous-conduction mode. t e l o s b O September 2010 Doc ID 18009 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 Doc ID 18009 Rev 1 RST 1n C6 TP8 ZVS NTC 1 2 J11 C11 2.2n LED ED1 LED ED2 LED ED3 ZVS NTC TCNTC TC+ RX TP10 NTC- 4 5 6 7 8 9 10 3 1 2 R12 30K RX TX ST7LITE39 : DIP20 PA0(HS) PA1(HS) PA2(HS) PA3(HS) PA4(HS) PA5(HS) PA6(HS) PA7/TDO OSCI/CLKIN OSC2 PB PB0/AIN0 PB1/AIN1 PB PB2/AIN2 PB PB3/AIN3 PB PB4/AIN4 PB PB5/AIN5 PB PB6/RDI PB RST VS VSS VDD U1 C9 1n 18 17 16 15 14 13 12 11 20 19 BP1 BP RUN UN DEF EFROST IGHT LIG DOO OOR SW BUZZER CTS TS TEMP EMP TX C5 1n TEMP R14 10k TP11 TEMP RUN TP5 150 R3 C10 1n J23 Buzzer 12 200 R15 TP12 BUZZER Q1 ACST6 C7 1n J12 Q2 ACS110 DEFROST J3 2 r P e C13 10n 750 R11 750 RST VDD C4 0n/16v 100n 2 VDD OSCI/CLKIN 10n C1 R2 51 1/4W (TW TW) MOTOR J2 4.7K 3 1 Door SW1 u d o R17 1 2 R13 10k TP9 LIGHT TP7 39 390 R5 Q3 ACS102 33 - 1/2W (TW) R1 DOORSW DEFROST TP6 130 13 R4 LIGHT J4 C8 1n 1 2 J13 Door SW2 CTS INDART CONN NNECTOR 10 9 8 7 6 5 4 3 2 1 J5 STEVAL-IHT001V1 demonstration board schematic diagram R18 1M R16 4.7k C12 10n TX LED4 R10 150k - 1/4W(TW) R8 150k 1/4W (TW) R7 d o r 750 R9 47 - 1/2W (TW) R6 t c u LED3 LED1 670n 0n - X2 67 C3 5V6 - 0.3W CTS D1 10n - X2 NEUTRAL TP3 ) (s VDD RX 1N4148 D2 200u 220 C2 LED2 + FUSE 1 3 2 C29 J1 MAINS 1 t e l o s b O Con1 J10 1 2 3 4 GND TP4 VDD L 1 2/4 2 s b O VDD TP2 P e t e l o RST VDD Figure 1. 3 Schematic circuit 43 1 4 TP1 Schematic circuit STEVAL-IHT001V1 AM07967V1 ) s ( ct OSCI/CLKIN STEVAL-IHT001V1 2 Revision history Revision history Table 1. Document revision history Date Revision 23-Sep-2010 1 Changes Initial release. ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O Doc ID 18009 Rev 1 3/4 STEVAL-IHT001V1 ) s ( ct Please Read Carefully: u d o Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. r P e All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. t e l o No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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