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:
Feb. 10, 2026
Filed:
May. 10, 2022
Applicant:
Hitachi Power Semiconductor Device, Ltd., Ibaraki, JP;
Inventors:
Yoshihiro Miwa, Tokyo, JP;
Hiroyuki Shoji, Tokyo, JP;
Junichi Sakano, Tokyo, JP;
Tomoyuki Utsumi, Hitachi, JP;
Takahiro Higuchi, Hitachi, JP;
Assignee:
MINEBEA POWER SEMICONDUCTOR DEVICE INC., Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/217 (2006.01); H02M 1/08 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H02M 7/217 (2013.01); H02M 1/08 (2013.01); H02M 3/33573 (2021.05);
Abstract
An effective technique is applied to a rectifier circuit that performs synchronous rectification using a switching element. The rectifier circuit performs the synchronous rectification using a MOSFET, for example, as the switching element. By using the rectifier circuit, a capacitance of a capacitor for supplying power to a drive circuit can be reduced. As a result, downsizing and cost reduction of the rectifier circuit and the power supply using the rectifier circuit can be achieved.