Invention Grant
- Patent Title: Latching relay drive circuit
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Application No.: US15119398Application Date: 2014-12-08
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Publication No.: US10176950B2Publication Date: 2019-01-08
- Inventor: Norikazu Nishio
- Applicant: OMRON Corporation
- Applicant Address: JP Kyoto-shi
- Assignee: OMRON Corporation
- Current Assignee: OMRON Corporation
- Current Assignee Address: JP Kyoto-shi
- Agency: Metrolexis Law Group, PLLC
- Priority: JP2014-050064 20140313
- International Application: PCT/JP2014/082401 WO 20141208
- International Announcement: WO2015/136797 WO 20150917
- Main IPC: H01H47/22
- IPC: H01H47/22 ; H01F7/18 ; H01H47/32 ; H01H47/00

Abstract:
A latching relay drive circuit includes a transistor that goes off when an operation switch is open, and a transistor connected in parallel to a capacitor and an operation coil. The transistor comes on when the transistor goes off to allow a reset current to flow into the operation coil. Accordingly, an enough reset current can be supplied, even if a power supply is shut off due to a power failure, to securely recover a single winding latching relay.
Public/Granted literature
- US20170062163A1 LATCHING RELAY DRIVE CIRCUIT Public/Granted day:2017-03-02
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