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):
- 5945783
- Application Number:
- PAN: 9-114,617
- Assignee:
- General Electric Co., Schenectady, NY (United States)
- 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 = {Tue Aug 31 00:00:00 EDT 1999},
month = {Tue Aug 31 00:00:00 EDT 1999}
}
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