我们将在春节假期期间对网站进行维护,可能暂时无法访问,同时工程师回复将有所延迟,敬请谅解.

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DRV8323R: GHx曲线异常

Part Number: DRV8323R

各位好,

我用8323+FOC控制PMSM,在转矩大时会烧MOS,抓了下GHx的曲线,发现有时候会出现下面这种波形,不知道是怎么出来的,有没有大佬帮忙分析下,谢谢!

Idrive是30mA、60mA;死区时间400ns,PWM模式是3x

蓝线表示INHB,黄线表示GHB