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Electrical & Energy
Class Information
Number:
315/275
Name:
Electric lamp and discharge devices: systems
>
Pulsating or a.c. supply
>
Discharge control discharge device load
> Condenser in the control circuit
Description:
Systems provided with a condenser connected in the control circuit of the discharge device.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
7443102
Energy-conserving devices of illumination systems
Oct. 28, 2008
5917290
Parallel-storage series-drive electronic ballast
Jun. 29, 1999
5387847
Passive power factor ballast circuit for the gas discharge lamps
Feb. 7, 1995
4766352
Method and apparatus for starting and operating fluorescent lamp and auxiliary ballast systems at reduced power levels
Aug. 23, 1988
4748381
Circuit arrangement for A.C. operation of gas discharge lamps
May. 31, 1988
4667131
Protection circuit for fluorescent lamp ballasts
May. 19, 1987
4488091
High intensity discharge lamp
Dec. 11, 1984
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