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. 09, 2021
Filed:
Feb. 28, 2020
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Chengfeng Jiang, Shenzhen, CN;
Hongfeng Liang, Dongguan, CN;
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1582 (2013.01);
Abstract
A free-wheeling diode control method includes determining whether a sum of a first pulse width value of a free-wheeling diode obtained according to an inductance current law and a third pulse width value of a main control tube meets a first preset condition, obtaining a determining result, and controlling, according to the determining result, conduction of the free-wheeling diode according to the first pulse width value or a second pulse width value of the free-wheeling diode obtained according to a volt-second balance law.