Title :
A simple electronic ballast with high power factor for metal halide (MH) lamps
Author :
Cheng, David K W ; Sun, Xiao ; Lee, Yim-Shu
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, China
Abstract :
An one-stage electronic ballast for metal halide lamp is presented. Employing an AC/AC regulator with hysteresis current control, the proposed ballast performs power regulation and power factor correction in one stage. The circuit is controlled in an approximately constant power mode to keep the input power almost unchanged. The lamp is operated under low frequency and no acoustic resonance occurs. The paper presents the topology, operation, design, simulation, and experimental results from a 70 W prototype.
Keywords :
AC-AC power convertors; electric current control; hysteresis; lamp accessories; lamps; metal vapour lamps; power control; power factor correction; 70 W; AC-AC regulator; constant power mode; electronic ballast; high power factor; hysteresis current control; metal halide lamps; power factor correction; power regulation; Circuits; Current control; Electronic ballasts; Frequency; Hysteresis; Lamps; Power factor correction; Reactive power; Regulators; Resonance;
Conference_Titel :
Power Electronics and Drive Systems, 2003. PEDS 2003. The Fifth International Conference on
Print_ISBN :
0-7803-7885-7
DOI :
10.1109/PEDS.2003.1283184
