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hi ti
我在用AMC1311做母线电压采集，输入电压是420v，请问，R1 R2 R3的阻值是应该选取哪个等级呢？R级？k级？M级？感谢
您好，
建议选KΩ等级，因电阻值过大，则分压点易受外界干扰；若电阻值过小，则分压回路会消耗过多的功耗。
