High intensity discharge lamp self-adjusting ballast system sens

Details High intensity discharge lamp self-adjusting ballast system sens High intensity discharge lamp self-adjusting ballast system sens

1985-08-28

1987-07-21

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315291, 315309, 315158, 315151, 323277, G05F 100, H05B 3702, H05B 3704, H05B 4136

Patent

active

046820841

ABSTRACT:
A self-adjusting ballast system for a high intensity discharge lamp. A lightweight, inexpensive and efficient ballast controls the strike and warmup stages of the high intensity discharge lamp, in particular high wattage lamps, through direct sensing of the radiant energy or heat output of the lamp itself. A current controller corrects for current imbalance in the alternating current lamp circuit due to bulb rectification or magnetic imbalance in the inverter transformer system.

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