Invention Grant
US08810167B2 Method and circuit for driving brushless motor and method and circuit for detecting rotational position of brushless motor
有权
用于驱动无刷电机的方法和电路以及用于检测无刷电动机的旋转位置的方法和电路
- Patent Title: Method and circuit for driving brushless motor and method and circuit for detecting rotational position of brushless motor
- Patent Title (中): 用于驱动无刷电机的方法和电路以及用于检测无刷电动机的旋转位置的方法和电路
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Application No.: US13214832Application Date: 2011-08-22
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Publication No.: US08810167B2Publication Date: 2014-08-19
- Inventor: Hidetoshi Suzuki , Makoto Morisaki
- Applicant: Hidetoshi Suzuki , Makoto Morisaki
- Applicant Address: JP Kosai-shi, Shizuoka-ken
- Assignee: Asmo Co., Ltd.
- Current Assignee: Asmo Co., Ltd.
- Current Assignee Address: JP Kosai-shi, Shizuoka-ken
- Agency: Faegre Baker Daniels LLP
- Priority: JP2010-187602 20100824; JP2011-159290 20110720
- Main IPC: H02P6/00
- IPC: H02P6/00
Abstract:
A method for driving a brushless motor including a first coil and a second coil for two phases but does not include a coil for one of three phases. A three-phase inverter circuit is connected to the first coil and the second coil. Currents having a phase difference corresponding to an electrical angle of 60 degrees are applied to the first coil and the second coil to generate a circular rotating magnetic field.
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