发明授权
- 专利标题： Digital power factor correction circuit
- 专利标题（中）： 数字功率因数校正电路
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申请号： US708804申请日： 1996-09-09
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公开(公告)号： US5801935A公开(公告)日： 1998-09-01
- 发明人: David M. Sugden , Phillip G. Langhorst , Joseph G. Marcinkiewicz , James C. R. Smart
- 申请人： David M. Sugden , Phillip G. Langhorst , Joseph G. Marcinkiewicz , James C. R. Smart
- 申请人地址： MO St. Louis GBX Harrogate
- 专利权人： Emerson Electric Co.,Switched Reluctance Drives, Ltd.
- 当前专利权人： Emerson Electric Co.,Switched Reluctance Drives, Ltd.
- 当前专利权人地址： MO St. Louis GBX Harrogate
- 优先权： GBX9608832 19960430
- 主分类号： H02M1/00
- IPC分类号： H02M1/00 ; H02M1/42 ; H02M7/217
摘要：
A digital power factor correction circuit including a digital comparator that compares the actual DC bus voltage of an electric circuit with a desired DC bus voltage to produce a digital attenuation signal in the form of a pulse width modulated signal that is used to attenuate the voltage from a time-varying source. The attenuated source voltage is used as the current demand signal for a current controller that controls the current drawn from the line.
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