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:
Sep. 30, 2014
Filed:
Apr. 26, 2010
Applicant:
Lei BI, Singapore, SG;
Inventor:
Lei Bi, Singapore, SG;
Assignee:
Fortior Technology (Shenzhen) Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/18 (2006.01); H02P 6/10 (2006.01);
U.S. Cl.
CPC ...
H02P 6/182 (2013.01); H02P 6/10 (2013.01);
Abstract
A permanent-magnet AC motor comprises a motor and a controller coupled to the motor. The motor includes a winding. The controller includes a drive model configured to provide a drive current. Waveform of the drive current is spatially symmetrical. The winding has a waiting zone having electrical angle of 30° and a driving zone having electrical angle of 150° in each half electrical cycle when the motor is in operation. The driving zone is equally divided into five driving sub-zones.