发明名称 |
SELF-COMMUTATING, BACK-EMF SENSING, BRUSHLESS DC MOTOR CONTROLLER |
摘要 |
A method and apparatus to commutate the drive voltages of a brushless DC motor. The present invention determines rotor position and velocity by detecting the polarity reversal of the Back-EMF of an undriven leg when compared to a transformed pseudo-reference. In an extra measure of efficiency, the present invention is independent of hardware sensors; it includes a commutation delay timing circuit for optimization of motor operation, and it minimizes the participation of a microprocessor or other microcontroller.
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申请公布号 |
US5202614(A) |
申请公布日期 |
1993.04.13 |
申请号 |
US19890411712 |
申请日期 |
1989.09.25 |
申请人 |
SILICON SYSTEMS, INC. |
发明人 |
PETERS, DAVID H.;HARTH, JEFF |
分类号 |
H02P6/16;H02P6/18 |
主分类号 |
H02P6/16 |
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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