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:
Jan. 08, 2013
Filed:
Nov. 16, 2010
Noboru Wakatsuki, Ishinomaki, JP;
Hideaki Deguchi, Kawasaki, JP;
Yu Yonezawa, Kawasaki, JP;
Naoyuki Mishima, Chigasaki, JP;
Noboru Wakatsuki, Ishinomaki, JP;
Hideaki Deguchi, Kawasaki, JP;
Yu Yonezawa, Kawasaki, JP;
Naoyuki Mishima, Chigasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention is a switch circuit equipped with a first switch connected between another end of an inductive load having a one end connected to a one end of a DC power supply and another end of the DC power supply, a capacitor connected between the another end of the inductive load and the another end of the DC power supply and connected in parallel with the first switch, a second switch that connects the another end of the inductive load and the capacitor, a third switch that connects a one end of the capacitor on an inductive load side to the one end of the inductive load so as to be parallel to the second switch, and a control circuit that turns ON the second switch before the first switch is turned OFF and turns OFF the second switch before the first switch is turned ON after being turned OFF.