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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。
最遠是多遠
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1樓  發(fā)表于: 2015-08-01 21:44
10v＋是直流正極，10v－是直流負極，它們之間是10v電壓

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