供示波器电源的AC插头端子一般都有三PIN,在实验室里用的事TDS1012C-SC型号,在没把插头端子接地那端减掉的话,在测试过程中经常容易把IC弄坏,看网上资料是说热地和冷地之间有电流流过IC,把它打坏; 其本质原因是什么呢?请各位大虾指教。
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