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. 10, 2017
Filed:
Dec. 13, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Junya Kobayashi, Suntou-gun, JP;
Nobuyuki Uchiyama, Mishima, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A power source device includes a transformer, a first switching element and a second switching element, a resonance capacitor, and a switch. One end of the second switching element is connected with one end portion of a primary winding. The other end of the second switching element is connected with one end portion of the resonance capacitor. The primary winding and the resonance capacitor are resonated with each other by alternately operating the first and second switching elements to supply electric power to a load connected with a secondary winding of the transformer. The primary winding includes a first primary winding and a second primary winding. Depending on the load, the switch connects or disconnects between the first primary winding and the resonance capacitor, or connects or disconnects between the second primary winding and said resonance capacitor.