A high power factor electronic ballast of projector lamps with variable frequency control

Chun An Cheng, Tsorng Juu Liang, Chia Ming Chuang, Jiann Fuh Chen

研究成果: Conference article同行評審

15 引文 斯高帕斯(Scopus)

摘要

A variable-frequency electronic ballast to shorten the projector lamp startup transition with feature of power factor correction is proposed in this paper. The circuit topology is composed of a boost converter as 1st stage and a half-bridge series-resonant parallel-load inverter together with a single-stage step-up igniter as 2nd stage. A 120W prototype was built to test and verify the characteristics of the proposed projector lamp ballast at start-up and steady state conditions. It was found that start-up time was reduced by nearly 50% and a high power factor above 0.98 could be achieved. In addition, the power converter is designed to operate at zero-voltage-switching to reduce power losses. Experimental results show good performance, verifying the functionality of the proposed ballast.

原文English
頁(從 - 到)213-219
頁數7
期刊PESC Record - IEEE Annual Power Electronics Specialists Conference
1
出版狀態Published - 2002 1月 1
事件2002 IEEE 33rd Annual Power Electronics Specialists Conference (PESC) - Cairns, Australia
持續時間: 2002 6月 232002 6月 27

All Science Journal Classification (ASJC) codes

  • 建模與模擬
  • 凝聚態物理學
  • 能源工程與電力技術
  • 電氣與電子工程

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