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DRV8432: 死区出现这种波形正常吗?

Part Number: DRV8432
Other Parts Discussed in Thread: DRV8332,

我用DRV8332和DRV8432都会出现下图所示的波形。原理图是参考DRV8332的推荐原理图,将带死区的PWM互补信号一路作为PWM_A输入,互补的PWM信号相或送入RESET_A作死区。

然后通电不带载输出时,在死区位置都是下面这样的波形,这样正常吗?如果不正常可能是什么原因导致的呢?谢谢。