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wzl032
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樓主  發(fā)表于: 2024-01-03 17:17
1個(gè)直流電源帶直流電機，怎么設計消除電機反電動(dòng)勢對電源反灌？
流年亂浮生
流年亂浮生
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1樓  發(fā)表于: 2024-01-03 17:51
400V5KW的直流電動(dòng)機工作電流10A左右，可在電源與電機間正向串一只1000V耐壓電流大于20A的二極管作為阻斷反電勢向電源的沖擊，二極管在電源對電機正常供電時(shí)正向導通，不影響供電。再用一只同樣的二極管反向接在電動(dòng)機的進(jìn)線(xiàn)端作為“續流”，此二極管在電機正常運轉時(shí)處于截止狀態(tài)，當電機產(chǎn)生反向電壓時(shí)使它導通，可消除反向電流。這是我的一個(gè)案例，僅供參考

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