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.

UC3842: 开关电源高压滤波电容失效,炸管是什么原理?

Part Number: UC3842

如果是大电流可以理解是mos长时间导通了,但如果是高压,从何而来?整流后的直流不是才300V左右吗?