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数字隔离器的参数意义

通常在数字隔离器或者光耦的数据手册中有多个隔离电压。

直流隔离电压和交流1min的隔离电压

我想请问,如果进行数字信号隔离的原边和次边电气隔离。次边的地电压在0~2200V(0~3500V)电平以500Hz左右的频率变化,这时候有没有合适的数字隔离器。

数字隔离器选型的时候working voltage 1414V 和1 MIN 5000Vrms分别代表什么意义。