发明名称 |
Rotor angle detecting apparatus for DC brushless motor |
摘要 |
An inspection voltage imposer generates an inspection voltage by multiplying fundamental voltage string data in which a certain voltage output pattern where an average of output voltage levels in one period becomes 0 is set by data of a modulation signal whose value varies every period and impose the inspection voltage on a drive voltage of a motor. When the inspection voltage is imposed on the drive voltage of the motor, an angle detector detects the rotor angle of the motor based on the fundamental voltage string data, a variation of an inspection current and the data of the modulation signal in respective control cycles. |
申请公布号 |
US6909290(B2) |
申请公布日期 |
2005.06.21 |
申请号 |
US20030669327 |
申请日期 |
2003.09.25 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
IMAI NOBUYUKI;TAKAHASHI YUTAKA |
分类号 |
H02P6/16;G01R31/34;H02P21/00;H02P27/04;(IPC1-7):G01R31/06;H02K23/00 |
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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