Integrated-circuit control for two-lamp electronic ballast. Final report

Technical Report · Mon Nov 01 04:00:00 EST 1982

OSTI ID:6658280

Kohler, T P

Circuitry is described for a solid-state, high-frequency fluorescent ballast designed to operate two F40 T-12 rapid-start lamps. The circuits are designed to be produced by hybrid integrated circuit (IC) technology. The signal components are produced on a single IC chip; the power transistors are attached to an alumina substrate. The initial IC version reduces the component count by about 50%. The cost of each IC in 500K lots is $0.70, replacing discrete parts costing $2.25. Additional savings of more than $1.00 per unit are realized by the decreased assembly time and improved reliability of the ICs. The system performance (two-lamp F40) was compared to the discrete version of the ballast and to an efficient core-coil ballast and found to be 6% less and 20% more efficient, respectively. The decrease in efficiency relative to the discrete version of the ballast is due to retaining some power to the filaments during operation in order to maintain normal lamp life.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6658280
• Report Number(s): LBL-15251; ON: DE83004466
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
BALLASTS
COMPARATIVE EVALUATIONS
COST
EFFICIENCY
ELECTRONIC CIRCUITS
FLUORESCENT LAMPS
INTEGRATED CIRCUITS
LIGHT BULBS
MICROELECTRONIC CIRCUITS
PERFORMANCE