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用UC3875控制移相全桥，出现了奇怪的问题，随着全桥输入电压的升高，超前管上下管驱动信号的两个死区会一个变大，另一个变小。下面给出实验波形，通道1是
超前桥臂下管驱动，通道3是超前桥臂上管驱动，通道2是桥臂中点电压，通道4是谐振电感电流。麻烦各位帮忙看看,非常感谢。
亲；驱动会因米勒效应而会随电压略微变化。所以；现在波形基本正确。
