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:
Jan. 20, 2026
Filed:
Dec. 04, 2023
Korea Electronics Technology Institute, Seongnam-si, KR;
Dong Myoung Joo, Bucheon-si, KR;
Jun Hyuk Choi, Bucheon-si, KR;
Joon Sung Park, Seoul, KR;
Jin Hong Kim, Suwon-si, KR;
Byong Jo Hyon, Anyang-si, KR;
Yong Su Noh, Seoul, KR;
Sang Min Park, Bucheon-si, KR;
Dae Yeon Hwang, Incheon, KR;
Hyoung Kyu Yang, Seoul, KR;
Poo Reum Jang, Incheon, KR;
KOREA ELECTRONICS TECHNOLOGY INSTITUTE, Seongnam-si, KR;
Abstract
A circuit for preventing power imbalance of a resonance-type power converter is proposed. The circuit may include a rectifier converting input alternating current (AC) into direct current (DC) and frequency-controlled first and second resonant converter modules configured to receive an output voltage of the rectifier divided into two stages. The circuit may further include a controller outputting a first frequency command for controlling a frequency of a pulse width modulation (PWM) signal supplied to a switching element of a first switching unit of the first resonant converter module. The circuit may further include a frequency compensator compensating for the first frequency command and then outputting a second frequency command for controlling a frequency of a PWM signal supplied to a switching element of a second switching unit of the second resonant converter module, so as to eliminate power imbalance between the first and second resonant converter modules.