Control of energy to fluorescent lighting

Details Control of energy to fluorescent lighting Control of energy to fluorescent lighting

1983-07-20

1985-07-09

Dixon, Harold

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315101, 315287, 315307, 315DIG4, G05F 100, H05B 3702

Patent

active

045284822

ABSTRACT:
A method and apparatus for reducing the energy consumption of fluorescent lighting energized by an alternating voltage source comprising sensing for a particular amplitude of the alternating voltage and upon sensing such voltage amplitude establishing a given time period which is a fraction of a cycle of the alternating voltage. At the end of the given time period actively connecting the alternating voltage source to the fluorescent lighting whereby the lighting is energized for a portion of the cycle, and for a given time interval at the start of operation continuously actively connecting the alternating voltage source to the fluorescent lighting so that the components of the fluorescent lighting can efficiently warm up.

REFERENCES:
patent: 3689827 (1972-09-01), Quinn
patent: 3890537 (1975-06-01), Park et al.
patent: 4464606 (1984-08-01), Kane

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