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ng724ng724
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樓主  發(fā)表于: 2014-10-27 14:20
在家里調試時(shí)沒(méi)有這種聲音，明偉的開(kāi)關(guān)電源，客戶(hù)在前端加裝了防雷設備，用起來(lái)有嘶嘶聲，對電源有影響嗎，有誰(shuí)遇到過(guò)這種情況的？
電工小安子
資深工業(yè)自動(dòng)化電路板維修，專(zhuān)修伺服板，PLC板各種工業(yè)控制板
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1樓  發(fā)表于: 2014-10-27 16:31
同意二樓意見(jiàn),一般這個(gè)聲音來(lái)源有兩個(gè)地方,分別是變壓器的震動(dòng)聲音和開(kāi)關(guān)管的開(kāi)關(guān)聲音,   
承接各種工業(yè)電路板維修，精修各品牌變頻器，伺服驅動(dòng)器，開(kāi)關(guān)電源，芯片級維修，價(jià)格優(yōu)惠，歡迎洽談，快手號：工業(yè)電路板維修丑哥。

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