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51问答网 > 电阻并联电容有什么作用？如图电路如何解释？

电阻并联电容有什么作用？如图电路如何解释？

2025-03-16 20:03:36

推荐回答（3个）

回答1：

电容一般都是用来滤波（一般接地）、保护（像在整流二极管上并联C），这里就是用来滤波的，而且主要过滤低频波。一般大的电容像10UF左右的就是过滤低频干扰，小的电容像0.01UF、0.1UF就是过滤高频干扰。

回答2：

输出并联电容，可以滤掉，去干扰。

回答3：

稳压，便于输出测量 R4是高阻

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