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wangsai0501
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樓主  發(fā)表于: 2011-02-17 13:51
用的是36V交流變直流  整流橋一連擊穿了好幾個(gè)怎么辦
先換上去用了半天就壞了
換了一個(gè)也只能用半天怎么辦呢？
wwcwwc
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1樓  發(fā)表于: 2011-02-17 16:38
以前使用正常嗎？如果是這是負載存在斷路性故障，如果是新增加的內容則是整流橋參數選擇過(guò)小，選擇時(shí)不但需要考慮電源側電壓，還需要考慮負載側（感性）的浪誦電壓值，可以在負載側加裝壓敏器件或者R C電路。同時(shí)計算一下負載的工作電流。一般選擇負載工作額定電流的2~3倍為宜。

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