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. 29, 2025
Filed:
May. 26, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Shotaro Yoshimura, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A power supply apparatus includes a first power supply unit configured to operate in a first mode in which a first DC voltage is generated or in a second mode in which a second DC voltage lower than the first DC voltage is generated. The first power supply unit performs an intermittent oscillation operation when operating in the second mode. The second DC voltage changes within a predetermined range due to the intermittent oscillation operation. A switch is connected between the first and second power supply units and serves to turn on and off the supply of the first or second DC voltage to a load. A controller performs control such that when the first power supply unit is switched from the second mode to the first mode, the switching from the second mode to the first mode is performed after the switch is turned on to the ON state.