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Title: Zero energy-storage ballast for compact fluorescent lamps

Abstract

A CFL ballast includes complementary-type switching devices connected in series with their gates connected together at a control node. The switching devices supply a resonant tank circuit which is tuned to a frequency near, but slightly lower than, the resonant frequency of a resonant control circuit. As a result, the tank circuit restarts oscillations immediately following each zero crossing of the bus voltage. Such rapid restarts avoid undesirable flickering while maintaining the operational advantages and high efficacy of the CFL ballast. 4 figs.

Inventors:
;
Issue Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
678585
Patent Number(s):
5,945,783
Application Number:
PAN: 9-114,617
Assignee:
General Electric Co., Schenectady, NY (United States) PTO; SCA: 320106; PA: EDB-99:084536; SN: 99002124475
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 31 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FLUORESCENT LAMPS; BALLASTS; ENERGY EFFICIENCY; OPERATION

Citation Formats

Schultz, W.N., and Thomas, R.J. Zero energy-storage ballast for compact fluorescent lamps. United States: N. p., 1999. Web.
Schultz, W.N., & Thomas, R.J. Zero energy-storage ballast for compact fluorescent lamps. United States.
Schultz, W.N., and Thomas, R.J. Tue . "Zero energy-storage ballast for compact fluorescent lamps". United States.
@article{osti_678585,
title = {Zero energy-storage ballast for compact fluorescent lamps},
author = {Schultz, W.N. and Thomas, R.J.},
abstractNote = {A CFL ballast includes complementary-type switching devices connected in series with their gates connected together at a control node. The switching devices supply a resonant tank circuit which is tuned to a frequency near, but slightly lower than, the resonant frequency of a resonant control circuit. As a result, the tank circuit restarts oscillations immediately following each zero crossing of the bus voltage. Such rapid restarts avoid undesirable flickering while maintaining the operational advantages and high efficacy of the CFL ballast. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}