NCP1236B65NBGEVB

Test Procedure for the NCP1236 Demoboard NCP1236B65NBGEVB 05/31/2011 Required Equipment: Current limited 90 ÷ 265 Vrms AC source (current limited to avoid board destruction in case of defective part) (e.g. AGILENT 6811) ……………………………...…… 1pc AC Volt-Meter able to measure up to 300 V AC (e.g. KEITHLEY 2000) ….… 1pc AC Amp-Meter able to measure up to 3 A AC (e.g. KEITHLEY 2000) …….... 1pc DC Amp-Meter able to measure up to 5 A DC (e.g. FLUKE 89 IV)……….…. 1pc DC Volt-Meter able to measure up to 30 V DC (e.g. KEITHLEY 2000) …...… 1pc DC Electronic Load (e.g. AGILENT 6060B) …………………………………... 1pc A V A AC source 90 ÷ 265 Vac V Figure 1: Test Setup The following steps describe the test procedure for all these boards: Test Procedure: 1. Connect the test setup as shown in Figure 1. 2. Apply an input voltage, VIN = 90 ÷ 265 Vac 3. Apply IOUT(load) = 0 A 4. Check that VOUT = 19 Vdc 5. Set IOUT to 3.5 A 6. Check that VOUT = 19 Vdc 7. Turn off the load 8. Turn off VIN 9. End of the test Be careful when manipulating the boards in operation, lethal voltages up to 425V are present on the primary side. An isolation transformer is also recommended for safer manipulations. DC load 19 V / 3.5 A