Method and apparatus for starting high intensity discharge lamps

Details Method and apparatus for starting high intensity discharge lamps Method and apparatus for starting high intensity discharge lamps

1985-12-23

1987-07-14

Dixon, Harold

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

Circuit interrupter in the inductance circuit

315 39, 315241R, 315244, 307110, H05B 3700

Patent

active

046805095

ABSTRACT:
A light source including a spiral line pulse generator having an output coupled to one electrode of a high pressure discharge lamp and having an input for coupling to a source of lamp operating power for providing high voltage lamp starting pulses. The pulse generator includes, in addition to a spiral line circuit, a solid state electronic switch for discharging the spiral line pulse generator and a ballast capacitor connected in series with the solid state switch. The spiral line pulse generator preferably has a magnetic core associated therewith for increasing the spiral line inductance.

REFERENCES:
patent: 2521513 (1956-09-01), Gray
patent: 3322976 (1967-05-01), Blank
patent: 4005336 (1977-01-01), Casella
patent: 4327311 (1982-04-01), Wroblewski
patent: 4353012 (1982-10-01), Fallier et al.

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