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:
Mar. 01, 2016
Filed:
Jul. 01, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Keizo Kojima, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A power supply apparatus includes a transformer and a switching unit that causes two switching elements connected in series to drive the primary winding of the transformer. A detection unit detects current flowing on the primary side of the transformer and outputs a voltage corresponding to the detected current. A correction unit corrects the voltage output from the detection unit into a voltage proportional to a variation of an input voltage input into the primary side of the transformer A nonlinear correction unit corrects the corrected voltage corrected by the correction unit to be nonlinear independently of variation in the input voltage.