发明名称 |
MOTOR ROTATION IRREGULARITY DETECTION CIRCUIT |
摘要 |
A motor rotation irregularity detection circuit includes a first integrator for integrating a rotation detection signal that is output from a driver of a sensor-less motor; a differentiator for outputting a difference between a binary signal based on the integral in the first integrator and the rotation detection signal; a second integrator for integrating an output signal of the differentiator; a comparator for making a comparison between the integral in the second integrator and a reference voltage to output an irregularity detection signal; and an output terminal for outputting a signal coming from the comparator.
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申请公布号 |
US2010019706(A1) |
申请公布日期 |
2010.01.28 |
申请号 |
US20090498019 |
申请日期 |
2009.07.06 |
申请人 |
NAKAI KAZUMASA;OTA MASAYUKI |
发明人 |
NAKAI KAZUMASA;OTA MASAYUKI |
分类号 |
H02P6/16 |
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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