Starterless low-voltage fluorescent-lamp circuit arrangements

Details Starterless low-voltage fluorescent-lamp circuit arrangements Starterless low-voltage fluorescent-lamp circuit arrangements

1975-03-27

1976-08-17

Rolinec, R. V.

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Delayed application of the discharge potential

315DIG5, 315 96, H05B 41232

Patent

active

039756602

ABSTRACT:
A starterless circuit arrangement for the ignition and the operation of one or a number of series connected, low voltage fluorescent lamps which are connected with a stray field transformer coupled with a voltage source. The stray field transformer produces the no-load voltage needed for firing the lamps and possesses heating coils which are connected with the electrodes of the lamps. A cold conductor having markedly positive resistance characteristic is connected in parallel with at least part of the secondary winding of the stray field transformer in order to maintain the voltage applied to the lamp(s) at a value beneath the firing or ignition voltage for such length of time until the electrodes of the lamps are pre-heated.

REFERENCES:
patent: 3324349 (1967-06-01), Moerkens et al.

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