Power Flow Analysis and Critical Design Issues of Retrofit Light-Emitting Diode (LED) Light Bulb

Sinan Li; Huanting Chen; Siew-Chong Tan; S. Y. (Ron) Hui; Eberhard Waffenschmidt

doi:10.1109/TPEL.2014.2339191

Power Flow Analysis and Critical Design Issues of Retrofit Light-Emitting Diode (LED) Light Bulb

Sinan Li^*, Huanting Chen^*, Siew-Chong Tan^*, S. Y. (Ron) Hui^*, Eberhard Waffenschmidt

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

15 Citations (Scopus)

Abstract

For retrofit applications, some high-brightness light-emitting diode (LED) products have the same form factor restrictions as existing incandescent light bulbs. Such form factor constraints may restrict the design and optimal performance of the LED technology. In this paper, some critical design issues for commercial LED bulbs designed for replacing E27 incandescent lamps are quantitatively analyzed. The analysis involves power audits on such densely packed LED systems so that the amounts of power consumption in: 1) the LED wafer; 2) the phosphor coating; and 3) the lamp translucent cover are quantified. The outcomes of such audits enable R&D engineers to identify the critical areas that need further improvements in a compact LED bulb design. The strong dependence of the luminous output of the compact LED bulb on ambient temperature is also highlighted. © 2014 IEEE.

Original language	English
Pages (from-to)	3830-3840
Journal	IEEE Transactions on Power Electronics
Volume	30
Issue number	7
Online published	14 Jul 2014
DOIs	https://doi.org/10.1109/TPEL.2014.2339191
Publication status	Published - Jul 2015
Externally published	Yes

Funding

This work was supported by the Research Grant Council of Hong Kong under the Theme-Based Research Scheme (TBRS) T22-715/12N.

Research Keywords

Energy audit
light-emitting diode
photo-electrothermal theory

RGC Funding Information

RGC-funded

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title = "Power Flow Analysis and Critical Design Issues of Retrofit Light-Emitting Diode (LED) Light Bulb",

abstract = "For retrofit applications, some high-brightness light-emitting diode (LED) products have the same form factor restrictions as existing incandescent light bulbs. Such form factor constraints may restrict the design and optimal performance of the LED technology. In this paper, some critical design issues for commercial LED bulbs designed for replacing E27 incandescent lamps are quantitatively analyzed. The analysis involves power audits on such densely packed LED systems so that the amounts of power consumption in: 1) the LED wafer; 2) the phosphor coating; and 3) the lamp translucent cover are quantified. The outcomes of such audits enable R&D engineers to identify the critical areas that need further improvements in a compact LED bulb design. The strong dependence of the luminous output of the compact LED bulb on ambient temperature is also highlighted. {\textcopyright} 2014 IEEE.",

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AU - Li, Sinan

AU - Chen, Huanting

AU - Tan, Siew-Chong

AU - Hui, S. Y. (Ron)

AU - Waffenschmidt, Eberhard

PY - 2015/7

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N2 - For retrofit applications, some high-brightness light-emitting diode (LED) products have the same form factor restrictions as existing incandescent light bulbs. Such form factor constraints may restrict the design and optimal performance of the LED technology. In this paper, some critical design issues for commercial LED bulbs designed for replacing E27 incandescent lamps are quantitatively analyzed. The analysis involves power audits on such densely packed LED systems so that the amounts of power consumption in: 1) the LED wafer; 2) the phosphor coating; and 3) the lamp translucent cover are quantified. The outcomes of such audits enable R&D engineers to identify the critical areas that need further improvements in a compact LED bulb design. The strong dependence of the luminous output of the compact LED bulb on ambient temperature is also highlighted. © 2014 IEEE.

AB - For retrofit applications, some high-brightness light-emitting diode (LED) products have the same form factor restrictions as existing incandescent light bulbs. Such form factor constraints may restrict the design and optimal performance of the LED technology. In this paper, some critical design issues for commercial LED bulbs designed for replacing E27 incandescent lamps are quantitatively analyzed. The analysis involves power audits on such densely packed LED systems so that the amounts of power consumption in: 1) the LED wafer; 2) the phosphor coating; and 3) the lamp translucent cover are quantified. The outcomes of such audits enable R&D engineers to identify the critical areas that need further improvements in a compact LED bulb design. The strong dependence of the luminous output of the compact LED bulb on ambient temperature is also highlighted. © 2014 IEEE.

KW - Energy audit

KW - light-emitting diode

KW - photo-electrothermal theory

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Power Flow Analysis and Critical Design Issues of Retrofit Light-Emitting Diode (LED) Light Bulb

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