Discharge lamp lighting device

Details Discharge lamp lighting device Discharge lamp lighting device

1995-06-05

1997-04-15

Pascal, Robert

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315307, 315209R, 315224, 315226, G05F 100

Patent

active

056212810

ABSTRACT:
A current feedback type discharge lamp lighting device including a switching circuit which switches an impedance of an impedance device in accordance with the number of connected discharge tubes. In the discharge lamp lighting device, a tube current for each of the connected discharge tubes is maintained constant, and the discharge lamp lighting device tends to not be effected by stray capacitance.

REFERENCES:
patent: 4700113 (1987-10-01), Stupp et al.
patent: 4775821 (1988-10-01), Sikora
patent: 4816720 (1989-03-01), Nomoto et al.
patent: 4928037 (1990-05-01), Kawabata et al.
patent: 5066894 (1991-11-01), Klier
patent: 5166579 (1992-11-01), Kawabata et al.
patent: 5384516 (1995-01-01), Kawabata et al.

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