Title:
LATCHING-RELAY DRIVE CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2015/136797
Kind Code:
A1
Abstract:
This latching-relay drive circuit (1) contains the following: a transistor (M1) that turns off when a control switch (SW) opens; and a transistor (M2) that is connected in parallel with a capacitor (C1) and a control coil (L1), and when the other transistor (M1) turns off, turns on and allows a reset current to flow through the control coil (L1). As such, even if the supply of power is interrupted by a power outage, a sufficient reset current is supplied, reliably resetting a single-winding latching relay.
Inventors:
NISHIO NORIKAZU (JP)
Application Number:
PCT/JP2014/082401
Publication Date:
September 17, 2015
Filing Date:
December 08, 2014
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H01H47/22; H01F7/18
Foreign References:
| JPS61178241U | 1986-11-07 | |||
| JPH0251817A | 1990-02-21 | |||
| JPS54130872A | 1979-10-11 |
Other References:
See also references of EP 3118877A4
Attorney, Agent or Firm:
MASUI, Yoshihisa et al. (JP)
Yoshihisa Masui (JP)
Yoshihisa Masui (JP)
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