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:
Dec. 21, 2021
Filed:
Apr. 25, 2017
Mitsubishi Electric Corporation, Tokyo, JP;
Shota Sato, Tokyo, JP;
Koji Nakajima, Tokyo, JP;
Takashi Kumagai, Tokyo, JP;
Yuji Shirakata, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
Provided is a highly reliable power circuit device. The power circuit device includes a printed substrate, a power circuit, and a housing. The power circuit is formed on the printed substrate. The housing is connected with the printed substrate. The power circuit includes secondary-side switching elements, at least one smoothing choke coil, and smoothing capacitors. Portions of a smoothing choke coil core serving as a core of the smoothing choke coil are inserted in opening portions formed in the printed substrate. A winding of the smoothing choke coil is formed on the printed substrate. The smoothing choke coil is located between a region C in which the smoothing capacitors are arranged and regions A and B serving as a second region in which primary-side switching elements and the secondary-side switching elements serving as electric elements are arranged.