Invention Grant
- Patent Title: Switch circuit with inductive load and capacitor
- Patent Title (中): 开关电路与感性负载和电容
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Application No.: US12946957Application Date: 2010-11-16
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Publication No.: US08350415B2Publication Date: 2013-01-08
- Inventor: Noboru Wakatsuki , Hideaki Deguchi , Yu Yonezawa , Naoyuki Mishima
- Applicant: Noboru Wakatsuki , Hideaki Deguchi , Yu Yonezawa , Naoyuki Mishima
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Main IPC: H01H31/10
- IPC: H01H31/10 ; H01H33/59 ; H01H47/00 ; H01H85/46 ; H01H19/14

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.
Public/Granted literature
- US20110057519A1 SWITCH CIRCUIT Public/Granted day:2011-03-10
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