Starterless circuit arrangement for the ignition and...

Details Starterless circuit arrangement for the ignition and... Starterless circuit arrangement for the ignition and...

H - Electricity

05

B

315/36

H05B 41/14 (2006.01) H05B 41/232 (2006.01)

Patent

CA 1044309

INVENTION: STARTERLESS CIRCUIT ARRANGEMENT FOR THE IGNITION AND OPERATION OF ONE OR A NUMBER OF LOW VOLTAGE FLUORESCENT LAMPS CONNECTED IN SERIES ABSTRACT OF THE DISCLOSURE 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 trans- former 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.

221545

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