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. 15, 2025
Filed:
Apr. 03, 2023
Applicant:
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Inventors:
Hongqiang Qin, Hangzhou, CN;
Yishan Ma, Hangzhou, CN;
Qiming Zhao, Hangzhou, CN;
Licheng Sheng, Hangzhou, CN;
Assignee:
Chengdu Monolithic Power Systems Co., Ltd., Sichuan, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/14 (2006.01); H02K 11/215 (2016.01); H02P 6/182 (2016.01); H02P 6/20 (2016.01);
U.S. Cl.
CPC ...
H02P 6/182 (2013.01); H02K 11/215 (2016.01); H02P 6/20 (2013.01);
Abstract
A BLDC motor system having a power stage, a hall sensor and a logical control circuit is discussed. The BLDC motor system improves performances by judging an initial rotation direction through the back electromotive force generated by the stator together with the induced signal sensed by the hall sensor.