Description
可在隔离变压器前面加滤波器来消除电源的大部分谐波。必要时可在供电的电源线路上接入低通滤波器，以滤去高频干扰信号。滤波器应放在隔离变压器之前，即先滤波后隔离。分离供电系统，将控制器、I/O通道和其他设备的供电采用各自的隔离变压器分离开来
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