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. 26, 2015
Filed:
Jan. 24, 2012
Takeshi Ide, Kamakura, JP;
Daishiro Sekijima, Tokyo, JP;
Takeshi Ide, Kamakura, JP;
Daishiro Sekijima, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A power source circuit includes a switching circuitthat converts a direct current voltage obtained by converting an alternating voltage from an alternating power source input through a pair of power supply linesandinto a predetermined direct current voltage by a switching operation. A fuseis provided on one power supply line. A series circuitincluding a first line bypass capacitorand a resistor elementis connected between one power supply lineand a ground. A second line bypass capacitoris connected between the other power supply lineand the ground. Imbalance of the circuit by an excess current protection element is prevented to reduce common mode noise.