Discharge lamp with two voltage levels

Details Discharge lamp with two voltage levels Discharge lamp with two voltage levels

1996-07-19

1998-09-08

Lee, Benny

Electric lamp and discharge devices: systems

Plural power supplies

315163, 315291, 315323, 315307, 315209R, H05B 3700

Patent

active

058049240

ABSTRACT:
A discharge lamp lighting device includes first voltage source of a high voltage capable of increasing lamp current, the voltage value of which being sequentially variable, and second voltage source of a low voltage capable of decreasing the lamp current, the voltage value of which being sequentially variable, lighting connection of the first and second voltages sources to a discharge lamp being alternately changed over for its stable lighting, whereby the stable lighting of the lamp can be made with any current limiting element minimized and a response to variation in outputs over a wide range as well as any radiant noise can be effectively improved.

REFERENCES:
patent: 4394603 (1983-07-01), Widmayer
patent: 4564897 (1986-01-01), Okamato et al.
patent: 5502423 (1996-03-01), Okude et al.

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