Driver circuit for single coil magnetic latching relay

Details Driver circuit for single coil magnetic latching relay Driver circuit for single coil magnetic latching relay

1990-08-08

1991-05-14

Pellinen, A. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

361175, 307101, H01H 4732, H01H 4724

Patent

active

050161342

ABSTRACT:
A single coil magnetic latching relay drive circuit which utilizes AC power for energizing/deenergizing the relay. To energize the relay, a single full half cycle of the AC power at a first polarity is applied to the relay coil. To deenergize the relay, a portion of a half cycle of the AC power of the other polarity is applied to the relay coil, this portion being chosen so that the effective current at the other polarity is insufficient to reenergize the relay.

REFERENCES:
patent: 4001867 (1977-01-01), Kravitz et al.
patent: 4449161 (1984-05-01), Kling
patent: 4490771 (1984-12-01), Huber et al.

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