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等效串联电阻

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等效串联电阻ESR),也称为有效串联电阻,一般指电容器等效电路电阻值。

理想电容器不存在等效串联电阻,或者说,理想电容器的等效串联电阻等于零。但实际中,电容器的引线,极板存在电阻,电容的绝缘介质会产生损耗。在外部,可将该电容器等效为一个理想电容器与一个电阻、一个电感串联的模型,此时电阻值即为该电容器的等效串联电阻。


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等效串联电阻
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