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如何解决ucc28061掉电重启问题

在调试多的几款交错PFC中,28061是效果做好的一款,PF,thd很好,但碰到一个问题:就是如果突然掉电,又上电(1S)左右,VCC处在保持状态而不是重启状态的话,会炸鸡;后来按照提示做了个软启,有些改善,但仍不能完全解决问题,在对输入电压反复开关中仍有炸鸡现象