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:
Jan. 14, 2020
Filed:
Jan. 16, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/14 (2006.01); G03G 15/16 (2006.01); G03G 15/00 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33523 (2013.01); G03G 15/16 (2013.01); G03G 15/80 (2013.01); H02M 1/14 (2013.01); H02M 3/33576 (2013.01); H02M 2001/0025 (2013.01);
Abstract
The power supply apparatus, when a switching element is driven at a second frequency lower than a first frequency, determines a duty of a pulse signal according to a predetermined voltage so that a frequency of the pulse signal input to a feedback unit is equal to or more than a predetermined frequency.