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:
Aug. 19, 2025
Filed:
Apr. 08, 2021
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Younghwan Kwack, Seoul, KR;
Seongho Son, Seoul, KR;
Seonho Jeon, Seoul, KR;
Chuhyoung Cho, Seoul, KR;
Jongseong Ji, Seoul, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02M 1/00 (2007.01); H02M 3/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02M 1/0058 (2021.05); H02M 3/01 (2021.05);
Abstract
A protection circuit of a resonant converter including first and second switches, where the protection circuit comprises: a comparator configured to (i) compare a direct current (DC) link voltage of the resonant converter with a voltage across both ends of one of the first or second switches and (ii) output one or more signals based on the comparison, and a microcomputer configured to detect whether zero voltage switching is performed, based on the one or more output signals from the comparator.