Method of regulating the power of vapor discharge lamps

Details Method of regulating the power of vapor discharge lamps Method of regulating the power of vapor discharge lamps

1985-12-18

1988-03-22

Moore, David K.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315293, 315299, 315301, 315307, 315308, 315DIG4, 315DIG7, 315289, 315194, 315137, 315144, H05B 4116, H05B 41392

Patent

active

047331364

ABSTRACT:
During operation of ionized vapor discharge lamps and the partial load range, the lamp current is reduced from the rated value, the drop in voltage is measured during and after the reduction of the lamp current, and when the period of constant voltage that follows the drop in voltage is reached, the lamp current is increased accompanied by simultaneous determination of the increase in voltage. The lamp current is thereupon controlled in such a way that during the partial load range operation of the lamp, the voltage value is slightly greater than that of the voltage of the period of constant voltage.

REFERENCES:
patent: 3989976 (1976-11-01), Tabor
patent: 3991344 (1976-11-01), Tabor
patent: 4146819 (1979-03-01), Hunter
patent: 4507569 (1985-03-01), Hess, II

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