| 变频器预充电电路的改进设计 |
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| 引用本文： | 王彦红,靳宝会.变频器预充电电路的改进设计[J].煤矿机电,2012(6). |
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| 作者姓名： | 王彦红 靳宝会 |
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| 作者单位： | 焦煤集团职工教育培训中心,河南焦作,454003 |
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| 摘 要： | 分析了单象限变频器采用接触器方式的预充电电路组成与工作原理,提出了一种利用晶闸管半控整流桥的方式代替原预充电电路的方案。通过试验验证,改进设计的方案有更好的应用效果。
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| 关 键 词： | 晶闸管 555定时器 触发电路 |
Improved Design of Frequency Inverter Pre-Charge Circuit |
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| Abstract: | Analyzes the constitute and working principle of pre-charging circuit with a contactor for variable frequency drive of one quadrant,provides a replace method of half-controlled bridge thyristor,which instead of original pre-charge circuit proposal.The improved method has been verified by testing. |
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| Keywords: | thyristor 555 timer trigger circuit |
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