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HVDMC 的地的问题



HVDMC套件上的地是浮空地,怎么使用示波器查看测试点vfb-u ,vfb-v  ,vfb-w

必须要自己加隔离措施吗?

我刚刚将示波器的地线接到板子的地上,直接冒火花了。