Dual current sensing driver circuit with switching energization

Details Dual current sensing driver circuit with switching energization Dual current sensing driver circuit with switching energization

1994-08-01

1996-07-30

Fleming, Fritz M.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361154, 361159, H01H 4732

Patent

active

055418066

ABSTRACT:
A driver circuit for controllably connecting an inductive load to a source of electrical power in response to an input control signal is provided. The inductive load includes an inductive winding of a solenoid. The driver circuit controllably connects and disconnects the inductive load to and from the source in response to a first control signal and controllably provides a discharge path for a flyback current of the inductive load in response to a second control signal. The driver circuit senses both the energizing current and the flyback current and responsively provides an energization path and a flyback discharge path in a non-overlapping manner.

REFERENCES:
patent: 4661766 (1987-04-01), Hoffmann et al.
patent: 4949215 (1990-08-01), Studtmann et al.
patent: 4967309 (1990-10-01), Hoffman
patent: 5134537 (1992-07-01), Buss et al.

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