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DRV8301电流测量

Other Parts Discussed in Thread: INA105

我看 电流测量的采样电阻在下管,如果下管关闭,那就采集不到电流,且电流的方向只有一个,就是直流,如何才能采集到交流,为什么不把采集电阻设置在上管呢,谢谢