Electric lamp and discharge devices: systems – Current and/or voltage regulation – Current generator control
Patent
1983-07-14
1986-05-27
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Current generator control
310198, 315288, 315312, 362227, G05F 100, H05B 3702, H05B 3904, H05B 4136
Patent
active
045917639
ABSTRACT:
A power supply system for portable floodlighting equipment employing high-intensity electric discharge lamps comprises an alternating current generator having two independent armature windings, one for producing current at a standard voltage and the other for producing current at a voltage sufficiently high for starting a discharge lamp in series with a capacitor. The two windings are out of phase and interference with the operation of the lamps energized by the first winding and electric apparatus energized by the second is effectively eliminated. The use of the generator winding for starting and energizing the lamps eliminates the usual starting ballast and decreases the weight and cost of the portable floodlighting unit.
REFERENCES:
patent: 431216 (1890-07-01), Stanley, Jr.
patent: 2644911 (1953-07-01), Hultgren
patent: 3412287 (1968-11-01), Hehenkamp
patent: 3772565 (1973-11-01), Lenz et al.
patent: 3912969 (1975-10-01), Nakai et al.
patent: 3989339 (1976-10-01), Wroblewski
patent: 4117390 (1978-09-01), Iwata et al.
Harrison Stanley N.
McBride, Jr. Paul B.
Wanasz Michael J.
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