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daihoo81
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樓主  發(fā)表于: 2011-03-29 20:19
220伏直接用橋式整流器整流，供給電磁線(xiàn)圈，為什么老是燒橋式整流器？請大家指點(diǎn)了�。�！
張平全
為國出力的時(shí)候到了
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1樓  發(fā)表于: 2011-05-13 16:34
1. 現在很多整流模塊都標的是耐壓峰值,更有一些產(chǎn)品標的電流也是理論值,我用過(guò)很多標識為10000V的整流模塊,實(shí)際耐壓只是60V,所以換一只燒一只
2. 電磁線(xiàn)圈出現了問(wèn)題,比如說(shuō)是絕緣不良而輕微短路,
3. 反置二極管完蛋了,這樣更是直接短路造成損壞模塊的現象
4. 整流電源出現異常,比如說(shuō)原本是接110V電壓的現接到220V電源上了,也會(huì )造成燒壞的后果
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