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:
Sep. 17, 2013
Filed:
Jun. 27, 2012
Satoshi Hatsukawa, Osaka, JP;
Nobuo Shiga, Osaka, JP;
Kazuhiro Fujikawa, Osaka, JP;
Takashi Ohira, Toyohashi, JP;
Kazuyuki Wada, Toyohashi, JP;
Tuya Wuren, Toyohashi, JP;
Kazushi Sawada, Toyohashi, JP;
Hiroshi Ishioka, Iwaki, JP;
Satoshi Hatsukawa, Osaka, JP;
Nobuo Shiga, Osaka, JP;
Kazuhiro Fujikawa, Osaka, JP;
Takashi Ohira, Toyohashi, JP;
Kazuyuki Wada, Toyohashi, JP;
Tuya Wuren, Toyohashi, JP;
Kazuya Ishioka, Iwaki, JP;
Kazushi Sawada, Toyohashi, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
National University Corporation Toyohashi University of Technology, Toyohashi-shi, JP;
Abstract
A switching circuit according to one embodiment includes: a switching element that has a first terminal and a second terminal, and is driven by a pulse signal to switch a conduction state between the first and second terminals; a power source section that supplies a voltage to the first terminal; a load circuit that is connected in parallel with the power source section; a passive circuit section that is connected between a connection point between the power source section and the load circuit, and the first terminal, and suppresses a current flowing from the connection point to the switching element at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse signal; and a resonant circuit section that is connected between the passive circuit section and the connection point, and resonates at the frequency of N times.