Volpe and Koenig PC
Starting method for Hall-less single-phase BLDCM
The methods for starting a Hall-less single-phase BLDCM having an asymmetrical air gap are proposed. The provided methods are employed to input a specific amount of current impulse and stop the current impulse at a specific time such that the rotor of the single-phase BLDCM having an asymmetrical air gap can be realized to rotate in the pre-determined direction through one of the cogging torque and the rotor inertia after that specific time so as to accomplish the normal starting of a motor without the Hall-effect sensor.
Delta Electronics Inc.
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H02P H02P H02P
inventional inventional inventional
Wen-Shi Jianping Wanbing Weizi Shih-Ming Lijian Zhigan
Huang Ying Jin Wang Huang Wu Wu