Multipulse starting aid for high-intensity discharge lamps

Details Multipulse starting aid for high-intensity discharge lamps Multipulse starting aid for high-intensity discharge lamps

1987-01-05

1987-12-15

Dixon, Harold

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315106, 315276, 315244, H05B 3700

Patent

active

047135875

ABSTRACT:
A multipulse starting aid for a high-intensity discharge lamp includes a spiral line, a bi-directional solid-state switch, or a spark gap, coupled to one of the ends of the spiral line, a resistance in association with the spiral line to provide an RC time constant. The time constant RC is so adjusted that, upon receiving the alternating current voltage from the appropriate source, a waveform of voltage is presented across the pair of terminals of the lamp, together with the series of pulses at the peak of each half cycle of the waveform. thereby enhancing the lamp startability.

REFERENCES:
patent: 4353012 (1982-10-01), Fallier et al.
patent: 4458181 (1984-07-01), Johnson
patent: 4496880 (1985-01-01), Luck
patent: 4609852 (1986-09-01), Perper
patent: 4629945 (1986-12-01), Fallier et al.

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