Title: Switching device
Application Number: 98111741 Application Date: 1998.12.24
Publication Number: 1245998 Publication Date: 2000.03.01
Approval Pub. Date: 2004.02.18 Granted Pub. Date: 2004.02.18
International Classifi-cation: H01H13/54
Applicant(s) Name: Matsushita Electric Works Ltd. Address:
Inventor(s) Name: Matsuura Shuji;Kato Yutaka
Attorney & Agent: wang huimin
Abstract:
    To provide an switching system by operating the switch system. Charges stored in a capacitor C3 are charged in a capacitor C2 by turning on a switch 4, a transistor(TR) Q2 is conductive till the voltage across the capacitor C2 reaches a prescribed level while the capacitor C2 discharges after the operation of the switch 4. A TR Q1 is turned off for the time and a thyristor 2 is conductive and an AC power supply supplies power to an electric light L as a load for that time. That is, power is supplied to the electric light L for a prescribed time after the switch 4 is operated. Furthermore, when the switch 4 is operated again at application of power of the electric light L, the capacitor C2 is charged by charges stored in the capacitor C3 and power is supplied to the load again for a prescribed time after the operation of the switch 4.
Time: 6
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