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. 01, 2019
Filed:
Jul. 09, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/38 (2007.01); G06K 15/00 (2006.01); G06K 15/12 (2006.01); H02M 3/335 (2006.01); H02M 1/36 (2007.01); H02H 3/02 (2006.01); H02H 3/05 (2006.01); H02H 3/093 (2006.01); H03K 17/082 (2006.01); G03G 15/00 (2006.01); H02H 1/00 (2006.01); H02M 1/32 (2007.01); H02H 3/08 (2006.01); H02H 7/20 (2006.01); H02M 1/00 (2006.01); H02M 1/34 (2007.01);
U.S. Cl.
CPC ...
H02M 1/38 (2013.01); G03G 15/80 (2013.01); G06K 15/12 (2013.01); G06K 15/406 (2013.01); G06K 15/409 (2013.01); H02H 1/0007 (2013.01); H02H 3/021 (2013.01); H02H 3/05 (2013.01); H02H 3/08 (2013.01); H02H 3/093 (2013.01); H02H 7/20 (2013.01); H02M 1/32 (2013.01); H02M 1/36 (2013.01); H02M 3/33569 (2013.01); H03K 17/0822 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/0058 (2013.01); H02M 2001/346 (2013.01);
Abstract
The switching power supply apparatus including a transformer includes a detection unit configured to detect that the power supply apparatus malfunctions and a first holding unit configured to turn off a first switching element and holds the first switching element at turn-off condition, and when the detection unit detects that malfunction occurs, the first holding unit releases the first switching element from the turn-off condition at a timing when the control unit turns on the second switching element by a second control signal.