我用示波器测DRV8301-HC-EVM Rev D驱动板 shunt电阻两端的波形和地的波形没有什么区别,是不是shunt电阻太小了(只有0.002欧姆)以至测不出电压波形?还有电机电流波形的频率怎么计算?谢谢。
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我用示波器测DRV8301-HC-EVM Rev D驱动板 shunt电阻两端的波形和地的波形没有什么区别,是不是shunt电阻太小了(只有0.002欧姆)以至测不出电压波形?还有电机电流波形的频率怎么计算?谢谢。