想用两个IGBT构造一个四象限开关,但发现IGBT不能快速关断,加正压输入时,输出波形见图,用Saber仿真波形较理想,不知这是什么原因.输入负压时也是一样.(试验时两个管子互补导通,驱动信号有IR2110提供,0~15V)
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