Title:
ARC-QUENCHING DEVICE FOR DIRECT CURRENT SWITCH
Document Type and Number:
WIPO Patent Application WO/2018/131250
Kind Code:
A1
Abstract:
In order to improve compactness and reduce price, an arc-quenching device (1) is equipped with a semiconductor switch (TR4) connected in parallel to a mechanical first switch (SW1), a constant voltage 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 protection resistor (R11) which is connected in series to the semiconductor switch (TR4), and disconnects as a result of the current flowing when the semiconductor switch suffers a short-circuit failure.
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Inventors:
OMORI KOJI (JP)
MORII MASATO (JP)
OTSUKA HIROYUKI (JP)
MORII MASATO (JP)
OTSUKA HIROYUKI (JP)
Application Number:
PCT/JP2017/038072
Publication Date:
July 19, 2018
Filing Date:
October 20, 2017
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H01H33/59; H01H9/54
Foreign References:
| JPH08106839A | 1996-04-23 | |||
| JPS61259416A | 1986-11-17 |
Attorney, Agent or Firm:
MURAKAMI, Takashi (JP)
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