Search International and National Patent Collections

1. (WO2018131249) ARC-QUENCHING DEVICE FOR DIRECT CURRENT SWITCH

Pub. No.:    WO/2018/131249    International Application No.:    PCT/JP2017/038013
Publication Date: Fri Jul 20 01:59:59 CEST 2018 International Filing Date: Sat Oct 21 01:59:59 CEST 2017
IPC: H01H 9/54
H01H 33/59
Applicants: OMRON CORPORATION
オムロン株式会社
Inventors: OMORI, Koji
大盛 浩二
MORII, Masato
森井 真喜人
OTSUKA, Hiroyuki
大塚 裕之
Title: ARC-QUENCHING DEVICE FOR DIRECT CURRENT SWITCH
Abstract:
The present invention prevents unnecessary activity of a load device when starting up a power supply. An arc-quenching device (2) is equipped with a semiconductor switch (TR4) connected in parallel to a mechanical first switch (SW1), a power supply circuit (22) for outputting a voltage which switches the semiconductor switch (TR4) on by using the voltage produced between the two contacts of the first switch (SW1), and a second switch (SW2) for preventing the on operation of the semiconductor switch (TR4) by switching to an open state.