Title :
Constant power control for high power factor electronic ballast high power metal halide lamp
Author :
Fongrut, Sakul ; Boonyaroonate, Itsda
Author_Institution :
Electr. Eng. Dept., King Mongkut Univ. of Technol. Thonburi, Bangkok
Abstract :
This paper present a two-stage electronic ballast for high power metal halide lamp. The two-stage electronic ballast is composed of a buck-boost lossless pre-regulator to achieve high power factor with lamp power control, and full-bridge inverter to drive the metal halide (MH) lamp at low frequency square wave. Due to its low frequency operation, no acoustic resonance occurs. Finally, a laboratory prototype of a 400 W MH electronic ballast is implemented. The experimental resulted the proposed ballast can operate at power factor (PF) = 0.98 and efficiency = 91.95%.
Keywords :
invertors; lamp accessories; metal vapour lamps; power control; buck-boost lossless preregulator; constant power control; efficiency 91.95 percent; full-bridge inverter; high power factor electronic ballast; high power metal halide lamp; laboratory prototype; low frequency square wave; power 400 W; Circuits; Costs; Electronic ballasts; Frequency; High intensity discharge lamps; Power control; Power generation; Pulse width modulation inverters; Reactive power; Voltage control; Constant Power; Electronic Ballast; Metal Halide Lamp; Power Factor Correction;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2008. ECTI-CON 2008. 5th International Conference on
Conference_Location :
Krabi
Print_ISBN :
978-1-4244-2101-5
Electronic_ISBN :
978-1-4244-2102-2
DOI :
10.1109/ECTICON.2008.4600596
