发明授权
- 专利标题： Motor control apparatus
- 专利标题（中）： 电机控制装置
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申请号： US620585申请日： 1996-03-22
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公开(公告)号： US5703768A公开(公告)日： 1997-12-30
- 发明人: Shigeo Kanna , Akihito Uetake
- 申请人： Shigeo Kanna , Akihito Uetake
- 申请人地址： Tokyo
- 专利权人： Seikon Epson Corporation
- 当前专利权人： Seikon Epson Corporation
- 当前专利权人地址： Tokyo
- 优先权： JPX7-066585 19950324; JPX7-337387 19951225
- 主分类号： H02P6/00
- IPC分类号： H02P6/00 ; H02P6/08 ; H02P6/12 ; H02M3/24 ; H02M1/12
摘要：
A motor control apparatus is provided which is capable of preventing large, accidental switching surges and suppressing switching surges that hamper efforts to improve the efficiency of PWM control inverters. The motor control apparatus has a PWM control inverter and axial position detector 3 that detects the position of the rotary axis of motor 14. Gate drive circuit 1 of the PWM control inverter comprises decoder circuit 4, correction gate circuit 5, and logical AND circuit 6. The correction gate circuit 5 sets a time difference at the change point for PWM signals and at the change point for commutation signals.
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