Achieving maximum-efficiency tracking control for backlight electronic ballast with phase-locked loop techniques

Chang Hua Lin*, Ying Lu, Kai Jun Pai, Ying Qi Chen

*此作品的通信作者

研究成果: 會議貢獻類型會議論文同行評審

6 引文 斯高帕斯(Scopus)

摘要

Single-stage electronic ballast with maximum-efficiency tracking is proposed in this paper. The original backlight system incorporates a phase-locked loop (PLL) as a feedback mechanism to promote the system efficiency and stability. To overcome the drawbacks of conventional electromagnetic transformer and miniaturize the backlight module, the piezoelectric transformer (PT) is adopted for driving the cold cathode fluorescent lamp. In addition, the PLL is used to track the optimal operating frequency of PT for achieving maximum output efficiency. The feedback parameter used in the presented system is the phase component instead of the lamp current amplitude utilized traditionally. A simple model and design procedure are both constructed by reasonable parameter simplification and combination schemes. Complete analysis and design considerations are discussed in detail in this paper. Experimental results are close to the theoretical prediction.

原文英語
頁面1651-1656
頁數6
出版狀態已發佈 - 2004
對外發佈
事件2004 IEEE International Conference on Control Applications - Taipei, 臺灣
持續時間: 2004 九月 22004 九月 4

其他

其他2004 IEEE International Conference on Control Applications
國家/地區臺灣
城市Taipei
期間2004/09/022004/09/04

ASJC Scopus subject areas

  • 工程 (全部)

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