Two-stage metal halide lamp electronic ballast with constant output-power control

Y. K. Tan, C. M. Huang, Tsorng-Juu Liang, Jiann-Fuh Chen, L. S. Yang, Ming-Yang Cheng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A two-stage electronic ballast for metal halide (MH) lamps is presented in this paper. The front-stage is a two-output power factor correction AC-DC flyback converter. The post-stage is a half-bridge inverter, which is used to control lamp power and drives MH lamp with a low-frequency square waveform current to avoid acoustic resonance. In addition, the lamp power of steady state is maintained at a constant level by utilizing the current-sensing level-shifting technique. The proposed topology has the advantages, such as unity power factor, low THD, low cost, and constant output-power. Finally, a laboratory prototype of 35W MH lamp electronic ballast is implemented to verify the feasibility.

Original languageEnglish
Title of host publicationProceedings of the 11th International Conference on Electrical Machines and Systems, ICEMS 2008
Pages2119-2124
Number of pages6
Publication statusPublished - 2008 Dec 1
Event11th International Conference on Electrical Machines and Systems, ICEMS 2008 - Wuhan, China
Duration: 2008 Oct 172008 Oct 20

Publication series

NameProceedings of the 11th International Conference on Electrical Machines and Systems, ICEMS 2008

Other

Other11th International Conference on Electrical Machines and Systems, ICEMS 2008
CountryChina
CityWuhan
Period08-10-1708-10-20

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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