Original document(19 pages)  中文版
    A technology for correctly detecting a rotating position of a rotator at the time of rotation start. A rotation control apparatus (10) controls rotation of a motor (90), which includes a stator provided with a plurality of coils (U, V and W) and a rotor having magnetism. At the time of detecting a position of the motor (90) when the motor (90) is stopped, a control part (20) supplies a current to a plurality of different paths including the coils (U, V and W), a stopped position detecting part (50) measures the current flowing in each of the plurality of paths, judges the order of the measured current values, and a rotating position of the motor (90) is detected based on the order. Based on a combination of a path showing the highest current value and a path showing the second highest current value, the stopped time position detecting part (50) judges a position of the motor (90).
Application Number
申请号
200580011216 Application Date
申请日
2005.05.24
Title 名称 Rotation control apparatus and method, and electronic device wherein the rotation control apparatus can be used
Publication Number
公开号
1943103 Publication Date
公开日
2007.04.04
Approval Pub. Date Granted Pub. Date
International Classification 分类号 H02P6/18
Applicant(s) Name
申请人
Rohm Co., Ltd.
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 shaoya li lixiao shu
More information 更  多  信  息


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