This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
The 'HV' pin of the UCC256404 will be connected to DC voltage. According to the datasheet, 'x-cap discharge' should be disabled.
How to disable the 'x-cap discharge.
Thanks
Hi
直接接PFC DC电压，此时无x-cap.
