发明授权
- 专利标题: Method and apparatus for controlling voltage reflections using a motor controller
- 专利标题(中): 用电机控制器控制电压反射的方法和装置
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申请号: US701950申请日: 1996-08-23
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公开(公告)号: US5671130A公开(公告)日: 1997-09-23
- 发明人: Russel J. Kerkman , David Leggate , Gary L. Skibinski
- 申请人: Russel J. Kerkman , David Leggate , Gary L. Skibinski
- 申请人地址: WI Milwaukee
- 专利权人: Allen-Bradley Company, Inc.
- 当前专利权人: Allen-Bradley Company, Inc.
- 当前专利权人地址: WI Milwaukee
- 主分类号: H02M7/5387
- IPC分类号: H02M7/5387 ; H02M1/12 ; H02P5/28
摘要:
A method and apparatus for eliminating greater than twice over voltage by altering firing signals provided to a PWM inverter. The signals are altered by either limiting their maximum and minimum on-times or eliminating signal changes in a symmetrical fashion so that the overall fundamental component and magnitude of a resulting low frequency alternating voltage is substantially unaltered.
公开/授权文献
- US4655517A Electrical connector 公开/授权日:1987-04-07
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