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原理图和PCB
您好，自举电容换了50V瓷片1uf，没有再烧毁了，但是ucc27211依然还是输入电压过了30V就会烧毁，我尝试放上视频，视频上检测的是高侧mos栅极对地的电压，当超过30V后，波形会剧烈变动至芯片烧毁。
大概找到原因了，就是栅极输出波形烂
应该是
