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wangfuwang
下崗農民
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樓主  發(fā)表于: 2014-12-19 09:23
這個(gè)穩壓二極管1N4745為何老燒壞，電路24小時(shí)長(cháng)期通電，最多十天燒壞，最短期一個(gè)星期，連續燒壞好幾次了,
謝謝你們的建議，我不能用變壓器，只能用電容降壓后整流出來(lái)，再穩壓供設備用電
[ 此帖被wangfuwang在2014-12-19 11:32重新編輯 ]
hengliang289
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1樓  發(fā)表于: 2014-12-19 11:19
高手能解釋下右下角那兩個(gè)電容是起什么作用的嗎

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