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

@article{Lin2004AchievingMT,
  title={Achieving maximum-efficiency tracking control for backlight electronic ballast with phase-locked loop techniques},
  author={Chang-Hua Lin and Ying Lu and Kai-Jun Pai and Ying-Qi Chen},
  journal={Proceedings of the 2004 IEEE International Conference on Control Applications, 2004.},
  year={2004},
  volume={2},
  pages={1651-1656 Vol.2}
}
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… CONTINUE READING