Driving circuit for a coil

Details Driving circuit for a coil Driving circuit for a coil

1982-05-19

1984-07-10

Adams, Russell E.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Temperature-responsive type

354464, 3542351, H01F 100, H01F 700, H01F 6100, G03B 708

Patent

active

044595743

ABSTRACT:
In the disclosed driving circuit for a coil, particularly for driving a coil in a device such as a camera whose shutter blades are driven with electro-magnetic force generated by a current flowing through the coil and a magnetic field in which the coil is positioned, a voltage approximately proportional to the absolute temperature is applied across the terminals of the coil so as to produce temperature compensation of the coil current.

REFERENCES:
patent: 3953865 (1976-04-01), Matsumoto
patent: 4099115 (1978-07-01), Watanabe

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