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.
