Circuit for driving solenoid

Details Circuit for driving solenoid Circuit for driving solenoid

1985-02-28

1986-07-08

Gellner, Michael L.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

361190, H01H 4732

Patent

active

045996741

ABSTRACT:
A solenoid driving circuit for supplying an exciting current whose level suddenly increases at the beginning of the flow of the current has a voltage inducing circuit for providing a pulse-like current component which suddenly increases at the beginning of the flow of the exciting current, a unidirectional element for supplying the pulse-like current component to the solenoid, a voltage limiting element for limiting the level of the pulse-like current component and applying a d.c. power to the solenoid, and a circuit for providing a stand-by current and the holding current to the solenoid, whereby the solenoid is effectively supplied with sufficient energy for driving it at high speed and the power required for maintaining the operation of the solenoid is reduced.

REFERENCES:
patent: 3982505 (1976-09-01), Rivere
patent: 4224654 (1980-09-01), Goldthorp et al.
patent: 4399483 (1983-08-01), Phelan

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