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小小少
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樓主  發(fā)表于: 2012-04-15 20:20
圖片：
我知道此物是把交流變成直流的，可是他們有的說(shuō)叫直流電源，有的說(shuō)叫開(kāi)關(guān)電源，有區別么?
zxrom
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1樓  發(fā)表于: 2012-04-15 21:22
一般叫開(kāi)關(guān)電源更準確些，它是利用大功率開(kāi)關(guān)管通過(guò)調整直流脈沖的寬度（也叫占空比）或調整直流脈沖的頻率來(lái)控制輸出直流電壓的，當然叫直流電源也沒(méi)錯，只是更籠統些
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