Xycom XVME-660第二种方法的抗干扰设计考虑如上图所示,图中在交流输入通道上设计线路滤波器对系统抗干扰具有很好的作用。其中CX为差模滤波电容(又称X电容)跨接在输入端之间,对差模电流起旁路作用,容值一般为0.1-1uF,LY为共模电感,用来抑制共模干扰电流。CY为共模电容(又称Y电容),跨接在线路与机壳之间,对共模电流起旁路作用,但电容值不能过大,否则会超过标准中对漏电流的限制要求,一般在4700PF以下。
Xycom XVME-660
Xycom XVME-660
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