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zhou196311
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樓主  發(fā)表于: 2019-01-22 16:26
三菱1sPLC接dc24v電瓶做外接電源,用了1年多,plc電源的輸出集成電路壞了,什么原因
hxl202319
工資就像大姨媽?zhuān)辉乱淮,一周就沒(méi)了
級別: 網(wǎng)絡(luò )英雄

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1樓  發(fā)表于: 2019-01-25 13:42
引用
引用第3樓lvpretend于2019-01-25 12:38發(fā)表的  :
電瓶電壓是所有電源中最穩定的一種,放心用。
如果是個(gè)例,不管它。如果多個(gè)例子,首先要懷疑PLC質(zhì)量問(wèn)題,在則懷疑充電機。

一看就是死讀書(shū),讀死書(shū)的人。任何一種充電電池的電壓都是變化的。譬如鋰電,沖完電時(shí)是4.1V4.2V,放電一直放大概放到3V左右,保護電路會(huì )切斷,必須充電。而電瓶(即鉛酸電池)單節充電電壓到2.3V左右,放電大概到1.7V。所以用鉛酸電池,要穩定的話(huà)用個(gè)DC/DC變換器是不錯的方式
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