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    [M5Stack PaHub 提问] 使用PaHub后ADC Unit的电流电压度数变低

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    • R Offline
      Richelieu
      last edited by

      大家好,

      我是一个电气小白,正在使用PaHub连ADC Unit,想做一个多频道的交流电电表。
      我以前用m5stack和单独的ADC unit相连,读数和买的电流计结果几乎一样。
      但是使用PaHub之后,每个channel的结果都变低,大概是真实值的70-80%。

      之前有英文的论坛大佬写过可以把ADC Unit的阻抗去掉,即可恢复正常值,我试了这个方法确实可以,但是这个ADC Unit就不能用做其他用了。

      有没有去掉PaHub阻抗就可以修正电流值的方法呢?
      还有一个非常小白的问题,虽然查过资料但是还是不太理解,在ADC Unit中的抵抗和PaHub的抵抗是如何影响最后的读数的呢?是简单的并联串联电阻分压吗?还是有其他更深层的电路原理?

      期待大佬们的回答,非常感谢!!!!!

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