Integrated ambient light sensor on a LED driver chip

Jian Fu Wu, Chia-Ling Wei, Yuan Ta Hsieh, Chiao Li Fang, Hann Huei Tsai, Ying Zong Juang

研究成果: Conference contribution

6 引文 斯高帕斯(Scopus)

摘要

This paper presents a boost-type light-emitting-diode (LED) driver with an on-chip ambient light dimming for the liquid crystal display (LCD) backlight module in portable electronics. The proposed system integrates an ambient light sensor (ALS) to achieve the function of dimming control. By sensing the surrounding illumination, the LED driver automatically regulates the LED current, and, hence, the power dissipation of LED backlight module can be effectively reduced. As a result, the battery life can be extended.

原文English
主出版物標題2011 IEEE 9th International Conference on Power Electronics and Drive Systems, PEDS 2011
頁面944-947
頁數4
DOIs
出版狀態Published - 2011 十二月 1
事件2011 IEEE 9th International Conference on Power Electronics and Drive Systems, PEDS 2011 - Singapore, Singapore
持續時間: 2011 十二月 52011 十二月 8

出版系列

名字Proceedings of the International Conference on Power Electronics and Drive Systems

Other

Other2011 IEEE 9th International Conference on Power Electronics and Drive Systems, PEDS 2011
國家Singapore
城市Singapore
期間11-12-0511-12-08

    指紋

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

引用此

Wu, J. F., Wei, C-L., Hsieh, Y. T., Fang, C. L., Tsai, H. H., & Juang, Y. Z. (2011). Integrated ambient light sensor on a LED driver chip. 於 2011 IEEE 9th International Conference on Power Electronics and Drive Systems, PEDS 2011 (頁 944-947). [6147368] (Proceedings of the International Conference on Power Electronics and Drive Systems). https://doi.org/10.1109/PEDS.2011.6147368