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

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

doi:10.1109/IAS.2011.6074372

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

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

Department of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	2011 IEEE Industry Applications Society Annual Meeting, IAS 2011
DOIs	https://doi.org/10.1109/IAS.2011.6074372
Publication status	Published - 2011
Event	2011 46th IEEE Industry Applications Society Annual Meeting, IAS 2011 - Orlando, FL, United States Duration: 2011 Oct 9 → 2011 Oct 13

Other

Other	2011 46th IEEE Industry Applications Society Annual Meeting, IAS 2011
Country	United States
City	Orlando, FL
Period	11-10-09 → 11-10-13

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1109/IAS.2011.6074372

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title = "Taylor series expression based equivalent circuit models of LEDs for analysis of LED driver system",

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.",

author = "Ray-Lee Lin and Lee, {Chia Chun} and Liu, {Shun Yao}",

year = "2011",

doi = "10.1109/IAS.2011.6074372",

language = "English",

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AU - Lin, Ray-Lee

AU - Lee, Chia Chun

AU - Liu, Shun Yao

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N2 - 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.

AB - 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.

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