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. 28, 2019
Filed:
Oct. 06, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/74 (2006.01); H04N 1/00 (2006.01); H02M 1/12 (2006.01); H01F 17/00 (2006.01); H01F 27/28 (2006.01); H01F 27/38 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H04M 1/74 (2013.01); H01F 17/00 (2013.01); H01F 27/28 (2013.01); H01F 27/38 (2013.01); H02M 1/12 (2013.01); H02M 3/33507 (2013.01); H04N 1/0001 (2013.01); H04N 1/00082 (2013.01); H04N 1/00994 (2013.01); H01F 2017/0093 (2013.01); H02M 2001/123 (2013.01); H04M 2201/80 (2013.01);
Abstract
An image forming apparatus may have the followings. A switching transformer has a first coil, a second coil, and a first core. The switching transformer generates a secondary side current in the second coil by a magnetic flux generated in the first core by a current that flows in the first coil. A common mode choke coil has a third coil, a fourth coil, and a second core. The common mode choke coil reduces a common mode noise. The switching transformer and the common mode choke coil are mounted on a substrate so that a direction of the magnetic flux generated in the first core and a direction of a magnetic flux generated in the second core are perpendicular.