NCP1014STBUCGEVB

Test Procedure for the NCP1014STBUCGEVB demo boards Non-isolated Positive Output Buck AC/DC Converter AND8226-D The following steps detail the test procedure for all these boards: Necessary Equipment: 1 Current limited 90 ÷ 265Vrms AC source (current limited to avoid board destruction in case of a defective part) or a 380VDC source (e.g. AGILENT 681x) 1 AC Volt-Meter able to measure up to 300V AC (e.g. KEITHLEY 2000) 1 AC Amp-Meter able to measure up to 1A AC (e.g. KEITHLEY 2000) 1 DC Volt-Meter able to measure up to 20V DC (e.g. KEITHLEY 2000) 1 DC Amp-Meter able to measure up to 500mA DC (e.g. KEITHLEY 2000) 1 DC Electronic Load (e.g. AGILENT 6060B) Figure 1: Test Setup Test Procedure: 1. Connect the test setup as shown in Figure 1. 2. Apply an input voltage, Uin =90 - 265Vac 3. Apply Iout(load) = 0A 4. Check that Uout is 12Vdc 5. Increate Iout(load) load to: 12V / 200mA 6. Check that Uout is 12V 7. Power down the load 8. Power down Uin 9. End of test 1 Be careful when manipulating the boards in operation, lethal voltages up to 265Vac are present on the primary side.