Resonant Assisted Buck Converter for Offline Driving of High Brightness LED replacement lamps

Xiaohui Qu; Siu-Chung Wong; Chi K. Tse

doi:10.1109/ECCE.2010.5618054

Resonant Assisted Buck Converter for Offline Driving of High Brightness LED replacement lamps

Xiaohui Qu, Siu-Chung Wong, Chi K. Tse

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

1 Citation (Scopus)

Abstract

LEDs are prospective successors of incandescent lamps with high efficacy and long lifetime. To improve the overall luminair efficacy and lifetime, the power efficiency and lifetime of LED ballast become important factors. Efficiency gain in transformerless power converter appears attractive for applications without isolation. Driving solid-state LED bulbs such as in PAR30 style from universal mains necessitates a high voltage step-down ratio to an output voltage of about 10-20 V, which is very common in industrial applications. Traditional step-down PWM buck power converter may suffer from a poor efficiency due to long diode freewheeling at a small duty cycle. In this paper, we propose a resonant assisted buck converter to achieve high voltage step-down ratio and high converter efficiency, whilst it can work with existing dimming drivers. The performance of the proposed LED driver is verified by a prototype ballast. © 2010 IEEE.

Original language	English
Title of host publication	2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings
Pages	166-170
DOIs	https://doi.org/10.1109/ECCE.2010.5618054
Publication status	Published - Sept 2010
Externally published	Yes
Event	2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Atlanta, GA, United States Duration: 12 Sept 2010 → 16 Sept 2010

Publication series

Name	2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings

Conference

Conference	2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010
Place	United States
City	Atlanta, GA
Period	12/09/10 → 16/09/10

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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10.1109/ECCE.2010.5618054

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@inproceedings{5900c580c9e6431ba75a3f6169c1957a,

title = "Resonant Assisted Buck Converter for Offline Driving of High Brightness LED replacement lamps",

abstract = "LEDs are prospective successors of incandescent lamps with high efficacy and long lifetime. To improve the overall luminair efficacy and lifetime, the power efficiency and lifetime of LED ballast become important factors. Efficiency gain in transformerless power converter appears attractive for applications without isolation. Driving solid-state LED bulbs such as in PAR30 style from universal mains necessitates a high voltage step-down ratio to an output voltage of about 10-20 V, which is very common in industrial applications. Traditional step-down PWM buck power converter may suffer from a poor efficiency due to long diode freewheeling at a small duty cycle. In this paper, we propose a resonant assisted buck converter to achieve high voltage step-down ratio and high converter efficiency, whilst it can work with existing dimming drivers. The performance of the proposed LED driver is verified by a prototype ballast. {\textcopyright} 2010 IEEE.",

author = "Xiaohui Qu and Siu-Chung Wong and Tse, {Chi K.}",

year = "2010",

month = sep,

doi = "10.1109/ECCE.2010.5618054",

language = "English",

isbn = "9781424452866",

series = "2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings",

pages = "166--170",

booktitle = "2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings",

note = "2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010 ; Conference date: 12-09-2010 Through 16-09-2010",

}

Qu, X, Wong, S-C & Tse, CK 2010, Resonant Assisted Buck Converter for Offline Driving of High Brightness LED replacement lamps. in 2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings., 5618054, 2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings, pp. 166-170, 2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010, Atlanta, GA, United States, 12/09/10. https://doi.org/10.1109/ECCE.2010.5618054

Resonant Assisted Buck Converter for Offline Driving of High Brightness LED replacement lamps. / Qu, Xiaohui; Wong, Siu-Chung; Tse, Chi K.
2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings. 2010. p. 166-170 5618054 (2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Resonant Assisted Buck Converter for Offline Driving of High Brightness LED replacement lamps

AU - Qu, Xiaohui

AU - Wong, Siu-Chung

AU - Tse, Chi K.

PY - 2010/9

Y1 - 2010/9

N2 - LEDs are prospective successors of incandescent lamps with high efficacy and long lifetime. To improve the overall luminair efficacy and lifetime, the power efficiency and lifetime of LED ballast become important factors. Efficiency gain in transformerless power converter appears attractive for applications without isolation. Driving solid-state LED bulbs such as in PAR30 style from universal mains necessitates a high voltage step-down ratio to an output voltage of about 10-20 V, which is very common in industrial applications. Traditional step-down PWM buck power converter may suffer from a poor efficiency due to long diode freewheeling at a small duty cycle. In this paper, we propose a resonant assisted buck converter to achieve high voltage step-down ratio and high converter efficiency, whilst it can work with existing dimming drivers. The performance of the proposed LED driver is verified by a prototype ballast. © 2010 IEEE.

AB - LEDs are prospective successors of incandescent lamps with high efficacy and long lifetime. To improve the overall luminair efficacy and lifetime, the power efficiency and lifetime of LED ballast become important factors. Efficiency gain in transformerless power converter appears attractive for applications without isolation. Driving solid-state LED bulbs such as in PAR30 style from universal mains necessitates a high voltage step-down ratio to an output voltage of about 10-20 V, which is very common in industrial applications. Traditional step-down PWM buck power converter may suffer from a poor efficiency due to long diode freewheeling at a small duty cycle. In this paper, we propose a resonant assisted buck converter to achieve high voltage step-down ratio and high converter efficiency, whilst it can work with existing dimming drivers. The performance of the proposed LED driver is verified by a prototype ballast. © 2010 IEEE.

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DO - 10.1109/ECCE.2010.5618054

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781424452866

T3 - 2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings

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BT - 2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings

T2 - 2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010

Y2 - 12 September 2010 through 16 September 2010

ER -

Resonant Assisted Buck Converter for Offline Driving of High Brightness LED replacement lamps

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