Control of electro-magnetic solenoid

Details Control of electro-magnetic solenoid Control of electro-magnetic solenoid

1980-09-26

1983-01-11

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

187 29R, H01H 4732

Patent

active

043685013

ABSTRACT:
An arrangement for controlling the rate of motion of a plunger of a D.C. electro-magnetic solenoid employs a solid state switching device connected in series with the primary winding of the solenoid. The rate of change of the flux in the primary winding induces a voltage in a sensing winding, which voltage is integrated and used to control the "on" time of the switching device so as to control the flux in the main coil.

REFERENCES:
patent: 3486101 (1969-12-01), Rufli
patent: 3614996 (1971-10-01), Saito et al.
patent: 3671814 (1972-06-01), Dick

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