Solenoid driving apparatus

Details Solenoid driving apparatus Solenoid driving apparatus

2005-11-03

2008-12-30

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

Reexamination Certificate

active

07471496

ABSTRACT:
A solenoid driving apparatus that drives a solenoid by intermittently supplying an exciting current comprises a first current switching element turned ON and OFF so as to switchably allow and block passage of the exciting current supplied to the solenoid L, a loop current circuit3being connected to the first current switching element and passing a loop current caused by stored energy in the solenoid when the supply of the exciting current to the solenoid is stopped by the first current switching element, and a second current switching element being disposed between the solenoid and a junction of the first current switching element and the loop current circuit, and being turned ON and OFF so as to switchably allow and block passage of the exciting current and the loop current.

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patent: 54048150 (1979-04-01), None
patent: 2001-117651 (2001-04-01), None

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