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:
May. 05, 2015
Filed:
Jun. 20, 2011
Applicants:
Yuki Nakajima, Numazu, JP;
Fumiaki Mizuno, Suntou-gun, JP;
Inventors:
Yuki Nakajima, Numazu, JP;
Fumiaki Mizuno, Suntou-gun, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); H02M 3/335 (2006.01); H02M 3/338 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/3385 (2013.01); G03G 15/5004 (2013.01); H02M 2001/0032 (2013.01); Y02B 70/16 (2013.01);
Abstract
A switching power source is provided, which includes, a transformer, a switching unit configured to switch a voltage supplied to a primary side of the transformer, and an output unit configured to output a voltage generated at a secondary side of the transformer, wherein a switching cycle of the switching unit is set to be a predetermined period of time when the output unit outputs a first voltage, a first period of time and a second period of time are set to be longer than the predetermined period of time and are set to be different from each other.