Electric flash device with printed coil transformer

Electric lamp and discharge devices: systems – Condenser in the supply circuit – Condenser in shunt to the load device and the supply

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Details

315276, 315278, 331113A, 354145, H05B 4132

Patent

active

040829847

ABSTRACT:
This invention relates to an improved small-sized electric flash device wherein transformers of its DC-DC converter circuit for producing a high voltage comprises printed coil or coils thereby efficiently reducing their volume and sufficiently flattering their shape, so that, together with miniaturized circuit parts and printed circuit substrate, highly integrated, hence compact photographic flash device is obtainable.

REFERENCES:
patent: 2474988 (1949-07-01), Sargrove
patent: 2587568 (1952-02-01), Eisler
patent: 3764849 (1973-10-01), Ohta

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