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Ignition design of digital ballast for low wattage metal halide lamps

  • Zhuang Zuo*
  • , Dianguo Xu
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, in order to develop economical ballast for low wattage metal halide (MH) lamps without an external ignitor, a half-bridge type low-frequency square-wave digital electronic ballast is proposed. A cheap 8-bit microcontroller is employed to improve the starting performance and operate the MH lamp without acoustic resonance in steady state. Adaptive ignition strategy helps the proposed system to overcome impact of the resonant parameters tolerance. The Adoption of third harmonic LC resonance attenuates the inherent defect of digital control caused by the discreteness and improves the refinement of igniting voltage greatly. A prototype of the digital electronic ballast for 70W metal halide lamp has been built, and the experimental result proved its validity.

Original languageEnglish
Title of host publicationTwenty-First Annual IEEE Applied Power Electronics Conference and Exposition, APEC '06
Pages1033-1036
Number of pages4
StatePublished - 2006
Event21st Annual IEEE Applied Power Electronics Conference and Exposition, APEC '06 - Dallas, TX, United States
Duration: 19 Mar 200623 Mar 2006

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2006

Conference

Conference21st Annual IEEE Applied Power Electronics Conference and Exposition, APEC '06
Country/TerritoryUnited States
CityDallas, TX
Period19/03/0623/03/06

Keywords

  • Digital ballast
  • Ignition
  • MH lamps

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