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METHOD AND SYSTEM FOR IMPROVED CLOSED LOOP CONTROL OF SENSORLESS BRUSHLESS DC MOTORS
METHOD AND SYSTEM FOR IMPROVED CLOSED LOOP CONTROL OF SENSORLESS BRUSHLESS DC MOTORS
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机译:无刷无刷直流电动机的改进闭环控制方法和系统
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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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