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.
Original question:
UCC28711: 用UCC28711做输入1200Vdc输出24Vdc1A 未能启动没输出有劳协助
直流供电由0到600Vdc时HV引脚始终是0.5Vdc
HI
将电路传上来看一下,并且说明一下你的测试?