Electronic shutter control circuit

Details Electronic shutter control circuit Electronic shutter control circuit

1976-03-15

1978-02-07

Hecker, Stuart N.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 1, 354234, G03B 708, G03B 908

Patent

active

040729656

ABSTRACT:
An oscillator is connected with a DC power source for generating an oscillating output current. A plurality of capacitors are connected with the oscillator by way of diodes and are charged by the output current from the oscillator. The connecting point between each capacitor and its associated diode is connected via a switching circuit to an electromagnetic coil. For instance, one capacitor is connected with a coil for driving a leading shutter blind and another capacitor is connected with a coil for driving a trailing shutter blind.

REFERENCES:
patent: 3248633 (1966-04-01), Guarrera
patent: 3275884 (1966-09-01), Segall et al.
patent: 3805143 (1974-04-01), Tavern et al.
patent: 3831079 (1974-08-01), Iwata

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