发明名称 |
Method to prevent midrange resonance during operation of a multi-phase step motor |
摘要 |
The frequency of the pulse width modulator within a step motor control circuit is increased above a base frequency under defined conditions to enable more accurate construction of the phase current waveform for preventing mid-range resonance. The PWM frequency is stepped between frequencies by a fixed amount above the base frequency, to prevent the excitation of system harmonics and prevent step motor operational instability.
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申请公布号 |
US2006108965(A1) |
申请公布日期 |
2006.05.25 |
申请号 |
US20050311867 |
申请日期 |
2005.12.20 |
申请人 |
COUTU DAVID;FOURNIER ROBERT A |
发明人 |
COUTU DAVID;FOURNIER ROBERT A. |
分类号 |
H02P8/00;H02P8/16 |
主分类号 |
H02P8/00 |
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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