Discharge lamp ignitor which adjusts the amplitude of ignition p

Details Discharge lamp ignitor which adjusts the amplitude of ignition p Discharge lamp ignitor which adjusts the amplitude of ignition p

1991-08-28

1992-11-24

Pascal, Robert J.

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315307, 315DIG5, H05B 4100

Patent

active

051665816

ABSTRACT:
An ignitor circuit for a gas discharge lamp includes a transformer and means for generating pulsatory voltages across a primary winding of the transformer to generate ignition pulses by means of a secondary winding of the transformer. The ignitor circuit further includes first means for measuring an amplitude of the ignition pulses, and second means for changing the pulsatory voltage across the primary winding, and thus changing the amplitude of the ignition pulses, in dependence on the measured amplitude of the ignition pulses. The ignitor circuit is capable of generating a suitable ignition pulse over a wide range of connection cable lengths.

REFERENCES:
patent: 3519881 (1970-07-01), Engel et al.
patent: 3944876 (1976-03-01), Helmuth
patent: 4247803 (1981-01-01), Walz
patent: 5051665 (1991-09-01), Garrison et al.

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