Design and implementation of high frequency AC-LED driver with digital dimming

Chao Lung Kuo; Tsorng-Juu Liang; Kai Hui Chen; Jiann-Fuh Chen

doi:10.1109/ISCAS.2010.5537751

Design and implementation of high frequency AC-LED driver with digital dimming

Chao Lung Kuo, Tsorng-Juu Liang, Kai Hui Chen, Jiann-Fuh Chen

Department of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

32 Citations (Scopus)

Abstract

In this paper a two-stage high frequency AC-LED driver is designed and studied. The front-stage is a boost power-factor correction (PFC) circuit and the rear-stage is a half-bridge series resonant inverter. The lighting characteristics of high frequency AC voltage driving LEDs, and the effect of LED to half-bridge resonant circuit are discussed. The proposed design uses the digital dimming control to reduce LED chromaticity shift, and connect the LEDs as a full-bridge rectifier to simplify the current sensing circuit. An 80-W high frequency AC-LED driver with universal voltage input (90-264 Vrms) is implemented to verify the design. Experimental results show that the variation of chromaticity coordinates (u′, v′) from brightness 100% to 20% is within 0.0023.

Original language	English
Title of host publication	ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
Subtitle of host publication	Nano-Bio Circuit Fabrics and Systems
Pages	3713-3716
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2010.5537751
Publication status	Published - 2010 Aug 31
Event	2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris, France Duration: 2010 May 30 → 2010 Jun 2

Publication series

Name	ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems

Other

Other	2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
Country	France
City	Paris
Period	10-05-30 → 10-06-02

All Science Journal Classification (ASJC) codes

Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/ISCAS.2010.5537751

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Kuo, C. L., Liang, T-J., Chen, K. H., & Chen, J-F. (2010). Design and implementation of high frequency AC-LED driver with digital dimming. In ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems (pp. 3713-3716). [5537751] (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems). https://doi.org/10.1109/ISCAS.2010.5537751

Kuo, Chao Lung ; Liang, Tsorng-Juu ; Chen, Kai Hui ; Chen, Jiann-Fuh. / Design and implementation of high frequency AC-LED driver with digital dimming. ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. pp. 3713-3716 (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems).

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title = "Design and implementation of high frequency AC-LED driver with digital dimming",

abstract = "In this paper a two-stage high frequency AC-LED driver is designed and studied. The front-stage is a boost power-factor correction (PFC) circuit and the rear-stage is a half-bridge series resonant inverter. The lighting characteristics of high frequency AC voltage driving LEDs, and the effect of LED to half-bridge resonant circuit are discussed. The proposed design uses the digital dimming control to reduce LED chromaticity shift, and connect the LEDs as a full-bridge rectifier to simplify the current sensing circuit. An 80-W high frequency AC-LED driver with universal voltage input (90-264 Vrms) is implemented to verify the design. Experimental results show that the variation of chromaticity coordinates (u′, v′) from brightness 100% to 20% is within 0.0023.",

author = "Kuo, {Chao Lung} and Tsorng-Juu Liang and Chen, {Kai Hui} and Jiann-Fuh Chen",

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note = "2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 ; Conference date: 30-05-2010 Through 02-06-2010",

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Kuo, CL, Liang, T-J, Chen, KH & Chen, J-F 2010, Design and implementation of high frequency AC-LED driver with digital dimming. in ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems., 5537751, ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, pp. 3713-3716, 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010, Paris, France, 10-05-30. https://doi.org/10.1109/ISCAS.2010.5537751

Design and implementation of high frequency AC-LED driver with digital dimming. / Kuo, Chao Lung; Liang, Tsorng-Juu; Chen, Kai Hui; Chen, Jiann-Fuh.

ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. p. 3713-3716 5537751 (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - In this paper a two-stage high frequency AC-LED driver is designed and studied. The front-stage is a boost power-factor correction (PFC) circuit and the rear-stage is a half-bridge series resonant inverter. The lighting characteristics of high frequency AC voltage driving LEDs, and the effect of LED to half-bridge resonant circuit are discussed. The proposed design uses the digital dimming control to reduce LED chromaticity shift, and connect the LEDs as a full-bridge rectifier to simplify the current sensing circuit. An 80-W high frequency AC-LED driver with universal voltage input (90-264 Vrms) is implemented to verify the design. Experimental results show that the variation of chromaticity coordinates (u′, v′) from brightness 100% to 20% is within 0.0023.

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Kuo CL, Liang T-J, Chen KH, Chen J-F. Design and implementation of high frequency AC-LED driver with digital dimming. In ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. p. 3713-3716. 5537751. (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems). https://doi.org/10.1109/ISCAS.2010.5537751