Circuits for electromagnet energization control

Details Circuits for electromagnet energization control Circuits for electromagnet energization control

1980-09-17

1982-03-09

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

361154, H01H 4732

Patent

active

043193013

ABSTRACT:
An electromagnet control circuit includes a first switching transistor which is connected in series with the electromagnet across a low voltage supply. A second switching transistor is connected to provide a high voltage supply to the electromagnet at switch-on. An inductor is connected by transistors to the low voltage supply and is supplied with current while the first switching transistor is on. At switch-off a diode interconnecting the electromagnet 10 and the inductor allows the inductor current to be diverted through the electromagnet to provide rapid flux decay in the latter.

REFERENCES:
patent: 2951186 (1960-08-01), Dickinson
patent: 3149244 (1964-09-01), Barnes et al.
patent: 3183412 (1965-05-01), Arends
patent: 4142684 (1979-03-01), Schweitzer

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