Camera boosting circuit

Details Camera boosting circuit Camera boosting circuit

1989-02-28

1990-06-05

Hix, L. T.

3541451, G03B 726

Patent

active

049318241

ABSTRACT:
A camera boosting circuit includes an oscillating transistor, a depletion FET, an oscillating boosting circuit, and a control circuit. The oscillating transistor converts a DC voltage of a camera power source battery into an AC voltage. The oscillating boosting circuit converts the DC voltage into an AC voltage together with the oscillating transistor, boosts the AC voltage using a transformer, and obtains a high DC voltage by rectifying the boosted AC voltage. The control circuit controls an oscillating operation of the transistor by ON/OFF-operating the FET.

REFERENCES:
patent: 4572640 (1986-02-01), Harigaya et al.
patent: 4692013 (1987-09-01), Okino

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