The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2007
Filed:
Nov. 21, 2005
Weizi Wang, Shanghai, CN;
Zhigan Wu, Shanghai, CN;
Wanbing Jin, Shanghai, CN;
Jianping Ying, Shanghai, CN;
Lijian Wu, Shanghai, CN;
Shih-ming Huang, Taoyuan Shien, TW;
Wen-shi Huang, Taoyuan Shien, TW;
Weizi Wang, Shanghai, CN;
Zhigan Wu, Shanghai, CN;
Wanbing Jin, Shanghai, CN;
Jianping Ying, Shanghai, CN;
Lijian Wu, Shanghai, CN;
Shih-Ming Huang, Taoyuan Shien, TW;
Wen-Shi Huang, Taoyuan Shien, TW;
Delta Electronics Inc., Taoyuan Hsien, TW;
Abstract
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.