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:
Jun. 21, 2022
Filed:
Sep. 11, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Shuhei Watanabe, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); H04N 1/00 (2006.01); H02M 7/00 (2006.01); H02M 7/219 (2006.01); H02M 3/335 (2006.01); H02M 7/217 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/5004 (2013.01); G03G 15/80 (2013.01); H02M 3/33515 (2013.01); H02M 7/217 (2013.01); H02M 7/219 (2013.01); H04N 1/00888 (2013.01); H02M 1/0025 (2021.05);
Abstract
The power supply apparatus includes a control unit configured to output a pulse signal for driving a switching element, to drive a transformer to output a voltage from a secondary winding of the transformer, and a memory unit configured to store information associating the output voltage with the duty and the frequency of the pulse signal, and the control unit switches the frequency and the duty based on the output voltage and the information stored in the memory unit.