Dear sir/ madam,
Regarding to UCC25630X HV pin.
1. Why three resistor at HV pin?
2. is one 5k resistor here okay?
3. how to test the X capacitor discharging waveform with EVM board.?
i failed to test the result shown on UCC25630X EVM user guide.
what is test is the voltage of x cap(C3,C4 on the EVM ) go to zero immediately when the AC power turn off.