Process and circuit for exciting solenoid coil

Details Process and circuit for exciting solenoid coil Process and circuit for exciting solenoid coil

1982-09-29

1984-11-27

Pellinen, A. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

361160, 307132E, G01F 158

Patent

active

044854242

ABSTRACT:
A process and circuit arrangement for exciting a solenoid coil to operate an iron core. Power from an AC power source is full-wave rectified, and then allowed to flow to a solenoid coil by a switch element located between the full-wave rectification circuit and the solenoid coil, which coil is made electrically conductive only for each short period of time corresponding to the top and its vicinities of the voltage wave-form of the rectified power so that the current is allowed to flow to the solenoid coil. Therefore, no current flows to the solenoid for each period of time corresponding to the trough and its vicinities of voltage wave-form of the rectified power. Thus, excitation and non-excitation of the solenoid is continuously alternated to give a dither effect to the iron core associated with the solenoid coil.

REFERENCES:
patent: 3218484 (1965-11-01), Matusche
patent: 3307824 (1967-03-01), Weisheit
patent: 4148090 (1979-04-01), Kawai et al.
patent: 4204240 (1980-05-01), Schmoock
patent: 4370604 (1983-01-01), Griffin

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