Circuit for charging a release magnet energizing capacitor in a

Details Circuit for charging a release magnet energizing capacitor in a Circuit for charging a release magnet energizing capacitor in a

1979-12-12

1981-09-01

Miller, J. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

354234, 354266, G03B 708, G03B 908

Patent

active

042875498

ABSTRACT:
A capacitor charging circuit in a camera has switch means series-connected between a DC power source and a release magnet energizing capacitor. The switch means comprises a parallel connection of an emitter-grounded transistor for a first switch with the capacitor as the load and a collector-grounded transistor for a second switch with the capacitor as the load.

REFERENCES:
patent: 3754455 (1973-08-01), Tsujimoto et al.
patent: 3946408 (1976-03-01), Taguchi
patent: 4099192 (1978-07-01), Aizawa et al.
patent: 4104666 (1978-08-01), Toyoda et al.
patent: 4143958 (1979-03-01), Ishiguro et al.

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