Ignition circuit for extinguishing tubes in electronic flash equ

Details Ignition circuit for extinguishing tubes in electronic flash equ Ignition circuit for extinguishing tubes in electronic flash equ

1977-06-02

1979-06-12

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Load device irradiating the radiant energy responsive device

315159, 315200R, 315241P, H05B 4132

Patent

active

041581555

ABSTRACT:
An ignition circuit is provided for extinguishing tubes in electronic flash equipment for photography. The second winding of an ignition transformer is arranged in series to the extinguishing tube. A diode is connected in parallel to the secondary winding of the ignition transformer through which the extinguishing tube current flows after ignition. The extinguishing tube does not require an ignition electrode. The ignition circuit is advantageously employed in electronic flash equipment for photography having an automatic circuitry for control of flash luminance time.

REFERENCES:
patent: 3524102 (1970-08-01), Michalski et al.
patent: 3857064 (1974-12-01), Vital et al.
patent: 4037136 (1977-07-01), Hoene

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