发明名称 |
Single phase AC synchronized motor |
摘要 |
There is provided a single-phase AC synchronized motor that does not need smooth of rectifier waves but stably performs shift from a starting operation to a synchronized operation. In the motor, based on detected signals of a position sensor, rectified current is reciprocally flowed to each direction of a single-phase coil which starts the motor. The motor includes a start-up operation circuit with a sensor starting period that increases a rotational speed until reaching to a first predetermined rotational speed; and a control device that controls operation of the motor as that shift to synchronized operation is performed when a rotational speed of a permanent magnetic rotor is reached to a second predetermined rotational speed nearby a synchronized rotational speed but not exceeding the synchronized rotational speed, and when the rise and fall of detected signals of the position sensor and the zero-cross point of AC current are approximately correspondent to each other.
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申请公布号 |
US8497654(B2) |
申请公布日期 |
2013.07.30 |
申请号 |
US201113105480 |
申请日期 |
2011.05.11 |
申请人 |
SAKAGUCHI TAKAHIRO;KOBAYASHI MASAHIRO;MINEBEA CO., LTD. |
发明人 |
SAKAGUCHI TAKAHIRO;KOBAYASHI MASAHIRO |
分类号 |
H02P1/46;H02P6/00 |
主分类号 |
H02P1/46 |
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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