Circuit system for igniting and operating a high-pressure discha

Details Circuit system for igniting and operating a high-pressure discha Circuit system for igniting and operating a high-pressure discha

1986-02-03

1988-06-07

Moore, David K.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

315160, 315174, 315175, 315176, 315206, 315209R, 315242, 315243, 315227R, 315DIG7, 315308, H05B 3700, H05B 4124, H05B 4114

Patent

active

047499141

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.

REFERENCES:
patent: 4053813 (1977-10-01), Kornrumpf et al.
patent: 4220896 (1980-09-01), Paice
patent: 4329627 (1982-05-01), Holmes
patent: 4410837 (1983-10-01), Suzuki et al.
patent: 4437042 (1984-03-01), Morais et al.
patent: 4471269 (1984-09-01), Ganser et al.
patent: 4572988 (1986-02-01), Handler et al.
patent: 4572990 (1986-02-01), Leale et al.
patent: 4587460 (1986-05-01), Murayama et al.
patent: 4594531 (1986-06-01), Ganser et al.
patent: 4598232 (1986-07-01), Nilssen
patent: 4612478 (1986-09-01), Payne
Tungsramrt: "Operating High Pressure Sodium Lamps" (an Article published by the lamp manufacturer Tungsram in the Hungarian lang.).

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