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:
Oct. 21, 2025
Filed:
Mar. 30, 2022
Omron Corporation, Kyoto, JP;
National University Corporation Chiba University, Chiba, JP;
Taichi Mishima, Kyoto, JP;
Shingo Nagaoka, Kyoto, JP;
Takeshi Uematsu, Kyoto, JP;
Hiroo Sekiya, Chiba, JP;
OMRON CORPORATION, Kyoto, JP;
NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY, Chiba, JP;
Abstract
A resonance-type power converter circuit includes: a resonance circuit including a first LC resonance circuit and a switching element, and outputting an output voltage or current to a load; a detector circuit detecting output information; an calculation controller searching for a maximum point in a characteristic of the output information at an operating frequency based on the detected output information, and determining an operating frequency corresponding to the searched maximum point; and a signal generator generating a drive control signal having the determined operating frequency, and controlling the frequency based on the drive control signal. The resonance circuit has a characteristic of output information at the operating frequency having a load independent point not depending on the load and corresponding to the maximum point and feeds back a drive control signal including the output information to the switching element and drives it at the load independent point by frequency control.