驱动芯片TPS28225,6.7v供电,pwm信号是由单片机产生经过光耦隔离给驱动芯片TPS28225,上电后过会就发烫是什么原因?
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是一直低,出现这种情况该怎么办!我现在也遇到了LGATE没有波形输出的情况,最后你们都是怎样解决的呢?