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. 10, 2019
Filed:
Sep. 19, 2016
Applicant:
Gree Electric Appliances, Inc. of Zhuhai, Zhuhai, Guangdong, CN;
Inventors:
Lina Yao, Guangdong, CN;
Weilin Guo, Guangdong, CN;
Wenxian Wu, Guangdong, CN;
Anyong Hu, Guangdong, CN;
Assignee:
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai, Guangdong, CN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 7/08 (2006.01); H02H 7/20 (2006.01); H02P 6/28 (2016.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 7/0811 (2013.01); H02H 1/0007 (2013.01); H02P 6/28 (2016.02);
Abstract
Provided are a protection circuit for a brushless DC motor, and a control device. The protection circuit is applied to a control device for a brushless DC motor, the control device including a main control chip and a protection circuit for driving a brushless DC motor. The protection circuit includes a sampling signal input end (RNF), a first resistor (R), a first capacitor (C), a second capacitor (C), a comparator (IC) and a switching element (IC), connected together in a preset structure.