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. 20, 2020
Filed:
May. 21, 2018
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Yusuke Okagawa, Osaka, JP;
Masayoshi Hirota, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Abstract
The electronic circuit device is provided with: a power conversion circuit having a switching element incorporated therein; and a circuit substrate on which a circuit element constituting the power conversion circuit is mounted and a wiring pattern configured to electrically connect circuit elements is disposed. The power conversion circuit is composed of a pair of switching elements configured to supply energy to a choke coil intermittently in phase. The circuit substrate is constituted of a double-sided substrate in which one switching element is mounted on one main surface while the other switching element is mounted on the other main surface and a wiring pattern is provided in a manner such that a current path including one switching element and a current path including the other switching element overlap each other in plan view and have opposite current directions.