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数字隔离器ISO7231在一块板上，只有一个电源时，且不用隔离电源隔离，隔离芯片两端两个电源和地要怎么处理，可否用LDO隔离，怎么共地。感谢。
需要用隔离电源隔离，也不能共地，否则就实现不了隔离的目的了。
