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:
Jul. 18, 2023
Filed:
Mar. 25, 2021
Fuji Electric Co., Ltd., Kawasaki, JP;
Ryuunosuke Araumi, Hino, JP;
Ryuji Yamada, Hachioji, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A switching control circuit for controlling an LLC converter that includes a first switching device, a first free-wheeling diode connected in parallel with the first switching device, a second switching device connected in series with the first switching device and the first free-wheeling diode, and a second free-wheeling diode connected in parallel with the second switching device. The switching control circuit controls switching of the first and second switching devices. The switching control circuit includes a determination circuit determining whether an operation mode of the LLC converter is a first mode or a second mode based on the resonant current of the LLC converter, and a drive signal output circuit outputting first and second drive signals for respectively switching the first and second switching devices based on the determined operation mode, to thereby prevent a shoot-through current from flowing through the first switching device or the second switching device.