Taylor series expression based equivalent circuit models of LEDs for analysis of LED driver system

Ray-Lee Lin, Chia Chun Lee, Shun Yao Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper presents the Taylor series expression based equivalent circuit models of light emitting diodes (LEDs) for the analysis of the LED driver system. In order to describe the non-linear V-I characteristics of LEDs, Taylor series can be used to express the equivalent conductance components in the DC and AC equivalent circuit models of LEDs. Based on the Taylor series expression, the equivalent AC conductance in the equivalent circuit model of the LED array can be derived. Finally, one LED array with 5 paralleled strings of 4 LEDs in series is used for the comparison of the theoretical and measured results of the equivalent AC conductance component in the corresponding equivalent circuit model.

Original languageEnglish
Title of host publication2011 IEEE Industry Applications Society Annual Meeting, IAS 2011
DOIs
Publication statusPublished - 2011
Event2011 46th IEEE Industry Applications Society Annual Meeting, IAS 2011 - Orlando, FL, United States
Duration: 2011 Oct 92011 Oct 13

Other

Other2011 46th IEEE Industry Applications Society Annual Meeting, IAS 2011
CountryUnited States
CityOrlando, FL
Period11-10-0911-10-13

All Science Journal Classification (ASJC) codes

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

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