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haibin9964
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樓主  發(fā)表于: 2015-08-01 08:52
通常市面上賣(mài)的是開(kāi)關(guān)電源光是+10v和—10v吧,我買(mǎi)了好幾個(gè)都是com公共極存在,是不是我理解錯了,我需要正負10v電源驅動(dòng)電機的正反轉,是不是地線(xiàn)的接線(xiàn)端子是公共端,但是我理解的是上面-10v是不是就是低電位0v,要是按照地線(xiàn)公共端是不是輸出-10v達不到。
kiwso
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1樓  發(fā)表于: 2015-08-01 21:46
3樓已經(jīng)回答你了!
首先你得理解電壓的定義!
電位是相對關(guān)系!如果一個(gè)電源,你將正極接地。那么你的電源電壓就是ー電壓(負)
同樣的道理,所以串聯(lián)使用是正確的!
選用的時(shí)候,必須注意的幾點(diǎn)
1、電源務(wù)必選擇一個(gè)型號
、兩個(gè)電源的負載盡量一致!


如果你有強迫癥的話(huà),那就定制一個(gè)吧!反正錢(qián)多。!

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