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:
Feb. 23, 2010
Filed:
Sep. 26, 2007
Applicant:
Chih-ming Huang, Taipei, TW;
Inventor:
Chih-Ming Huang, Taipei, TW;
Assignee:
Sunplus Technology Co., Ltd., Hsinchu Science Park, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A torque compensation method and system for a DC brushless motor. When the DC brushless motor coupled with an asymmetric load is rotating, the difference between an instant current and an average current of a shunt resister is an index of adjusting control signals within an absolute rotor position for the purpose of approaching the corresponding instant current to the average current.