Optimal Design of LED Array for Single-Loop CCM Buck-Boost LED Driver

被引：43

作者：

Lin, Ray-Lee ^{[1
]}

Chang, Yi-Chun ^{[1
]}

Lee, Chia-Chun ^{[2
]}

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 70101, Taiwan

[2] Natl Cheng Kung Univ, Tainan 70101, Taiwan

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2013年 / 49卷 / 02期

关键词：

Array; buck-boost converter; continuous conduction mode (CCM); light-emitting diode (LED); modeling; quality factor; single loop; system analysis; Taylor series expression;

D O I：

10.1109/TIA.2013.2243091

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the optimal combination design of the light-emitting diode (LED) array for the single-loop continuous-conduction-mode (CCM) buck-boost LED driver. Based on the Taylor series to describe the LED exponential function, the dc and small-signal transfer functions of LED arrays are derived for the system analysis of the employed single-loop CCM buck-boost LED driver. In this paper, the derived system transfer functions of the employed LED driver are verified with SIMPLIS (R) simulation results. The combination design of a 120-piece LED array for the employed LED driver to have power conversion with optimal efficiency is obtained and validated through the theoretical, simulation, and experimental results.

引用

页码：761 / 768

页数：8

共 13 条

[1] A probabilistic approach of designing driving circuits for strings of high-brightness light emitting diodes [J].