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Abstract

Light-emitting diodes (LED) are regarded as the ideal replacement for traditional lighting sources. With the increasing utilization, the accumulating power capacity brings the input power quality into the concern. A LED driver is required to maintain good input power quality for minimal impact on grid. Single-stage LED driver is regarded as an effective solution for low-cost and low-power application. SIN and SIN^2 current references are recently proposed for single-stage LED driver. In this paper, a novel current reference based on the electric model of LED is proposed to further improve the input power quality compared with the SIN and SIN^2 references. Simulation results verify that the proposed current reference can significantly reduce total harmonic distortion (THD) of input current.

Item Type:	Conference Publication
Authors/Creators:	Li, H and Hassan, W and Xiao, W
Keywords:	buck LED driver, current reference, power factor correction (PFC), power quality, total harmonic distortion
Journal or Publication Title:	Proceedings of the 4th International Future Energy Electronics Conference
Publisher:	Institute of Electrical and Electronics Engineers
DOI / ID Number:	https://doi.org/10.1109/IFEEC47410.2019.9015094
Copyright Information:	Copyright 2019 IEEE
Related URLs:	Google Scholar: Hassan, W
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