Optimal design of LED array for single-loop ccm buck-boost LED driver

Ray-Lee Lin, Yi Chun Chang, Chia Chun Lee

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

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® 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.

Original languageEnglish
Article number6480835
Pages (from-to)761-768
Number of pages8
JournalIEEE Transactions on Industry Applications
Volume49
Issue number2
DOIs
Publication statusPublished - 2013 Mar 25

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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