发明名称 |
AC rectifier circuit with means for limiting the rectified voltage |
摘要 |
The invention relates to an AC voltage supplied rectifier circuit with a downstream smoothing capacitor. A prior art problem with this type of circuit was that the inductive impedance of the supply voltage caused a practically umdamped oscillation between the inductive supply impedance and the smoothing capacitor during start-up which caused the voltage to rise to about twice the stationary value. A rectifier circuit is provided which substantially prevents the over-oscillation having at least one controllable rectifier which brings the rectifier to a conductive state during the charging period of the smoothing capacitor over such a time that the output direct voltage of the rectifier circuit exceeds the momentary capacitor voltage by no more than a predetermined limited value.
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申请公布号 |
US4811189(A) |
申请公布日期 |
1989.03.07 |
申请号 |
US19880173862 |
申请日期 |
1988.03.28 |
申请人 |
DANFOSS A/S |
发明人 |
HARVEST, NILS-OLE;RASMUSSEN, JORGEN |
分类号 |
H02M7/155;H02M7/12;H02M7/162;H02P27/06;(IPC1-7):H02H7/125 |
主分类号 |
H02M7/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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