Operating circuit for a direct current discharge lamp

Details Operating circuit for a direct current discharge lamp Operating circuit for a direct current discharge lamp

1987-04-17

1988-06-07

Moore, David K.

Electric lamp and discharge devices: systems

Plural power supplies

Diverse-type current supplies

315200R, 315206, 315172, 315220, 315277, 315DIG7, H05B 4116

Patent

active

047499133

ABSTRACT:
A power supply for a metal halide discharge lamp includes a circuit for applying a high voltage starting pulse to the arc tube of the lamp to initiate the discharge, a glow transition current to provide power transitioning the arc tube from its glow to its run mode, and a run power supply circuit to provide continuous controlled d-c current to the arc tube.

REFERENCES:
patent: 4340843 (1982-07-01), Anderson
patent: 4350930 (1982-09-01), Peil et al.
patent: 4398130 (1983-08-01), McFadyen et al.
patent: 4399392 (1983-08-01), Buhrer
patent: 4471268 (1984-09-01), Brown et al.
patent: 4550272 (1985-10-01), Kimura et al.

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