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:
May. 09, 2017
Filed:
Feb. 11, 2015
Applicant:
Fairchild Korea Semiconductor Ltd., Bucheon-si, KR;
Inventors:
Won-Tae Lee, Cheonan-si, KR;
Hyeong Seok Baek, Bucheon-si, KR;
Ji-Hoon Jang, Incheon, KR;
Hang-Seok Choi, Bedford, NH (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/32 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02M 3/33507 (2013.01); H02M 3/33538 (2013.01); H02M 3/33569 (2013.01); H02M 3/33592 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1433 (2013.01); Y02B 70/1475 (2013.01); Y02B 70/1491 (2013.01); Y02P 80/112 (2015.11);
Abstract
A resonant converter includes a first switch coupled between a first node and a primary side ground, a second switch coupled between an input voltage and the first node, at least one capacitor and at least one inductor coupled in series between both ends of the first switch, and a switch control circuit that shifts switching frequencies of the first and second switches during a period for which an abnormal event lasts when occurrence of the abnormal event is detected, and shifts the switching frequencies in an opposite direction when the abnormal event ends.