发明名称 |
METHOD AND SYSTEM FOR IMPROVED CLOSED LOOP CONTROL OF SENSORLESS BRUSHLESS DC MOTORS |
摘要 |
A method for electronically commutating a motor having a plurality of phase windings associated therewith is disclosed. In an exemplary embodiment, the method includes sensing a back electromotive force (BEMF) generated by each of the phase windings, and scaling the magnitude of the sensed BEMF values for each of the phase windings to a normalized value to produce gain corrected BEMF signals. The gain corrected BEMF signals are then used to determine a rotor position of the motor.
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申请公布号 |
US2003234629(A1) |
申请公布日期 |
2003.12.25 |
申请号 |
US20020177473 |
申请日期 |
2002.06.21 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
TRIFILO TIMOTHY M. |
分类号 |
H02P6/18;(IPC1-7):H02P1/00 |
主分类号 |
H02P6/18 |
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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