Abstract: A circuit system for igniting and lighting a high-pressure discharge lamp, particularly a sodium vapor lamp, comprising a pulse generator for generating signals of at least 1 kHz frequency being a high-frequency DC/AC converter connected to a direct current source and an ignition circuit coupled with the pulse generator including a high-pressure discharge lamp, a condenser connected in parallel to the high-pressure discharge lamp and an inductive member connected to the condenser and the high-pressure discharge lamp and forming a series member with the condenser the ignition circuit is provided with a transformer having a secondary winding connected in series with the inductive member for ensuring high reliability of igniting and for improving the conditions of lighting.
Type:
Grant
Filed:
February 3, 1986
Date of Patent:
June 7, 1988
Assignee:
El-Co Villamos Keszulekek es Szerelesi Anyagok Gyara
Inventors:
Zoltan Feher, Arpad Karpat, Janos Melis, Rudolf Sirato, Andras Szeverenyi, Bela Waldinger