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:
Sep. 15, 2026
Filed:
May. 29, 2025
Canon Kabushiki Kaisha, Tokyo, JP;
Mitsunori Oshima, Shizuoka, JP;
Hiromitsu Kumada, Shizuoka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A power source device of a full bridge system includes a rectifying circuit, a smoothing capacitor and a bridge circuit including first through forth switching elements. The first through forth switching elements are provided with first through fourth capacitors connected thereto in parallel, respectively. When combined capacitances of electrostatic capacitances between drain terminals and source terminals of the first through the fourth switching elements, respectively, and electrostatic capacitances of the first through the fourth capacitors are defined as first through fourth electrostatic capacitances, at least one value of electrostatic capacitance of the first through the fourth electrostatic capacitances is a value different from the other electrostatic capacitances.