Estimation of Luminous Flux and Luminous Efficacy of Low-Power SMD LED as a Function of Injection Current and Ambient Temperature

被引：23

作者：

Raypah, Muna E. ^{[1
,2
]}

Sodipo, Bashiru K. ^{[2
]}

Devarajan, Mutharasu ^{[2
]}

Sulaiman, Fauziah ^{[2
]}

机构：

[1] Hodiedah Univ, Al Hudaydah 112, Yemen

[2] Univ Sains Malaysia, Sch Phys, George Town 11800, Malaysia

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2016年 / 63卷 / 07期

关键词：

Ambient temperature; injection current; light-emitting diode (LED); luminous efficacy; luminous flux; surface-mounted device (SMD); LIGHT-EMITTING-DIODES; JUNCTION TEMPERATURE; CONVERTER; MODEL;

D O I：

10.1109/TED.2016.2556079

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Light-emitting diode (LED) luminous flux and efficacy as a function of temperature and current is important to qualify and optimize the design of an LED system. In this paper, the extension of light output equation was used to estimate luminous flux and efficacy of low-power surface-mounted device LED. The photometric and thermal test reports of LED parameters at a certain range of injection current and ambient temperature were obtained by the combination of T3ster and TeraLED systems. The luminous flux and efficacy as a function of injection current and ambient temperature were predicted. The agreement between the experimental and theoretical results validates the extended equation used in this paper. The optimized operating conditions of LED under test are determined.

引用

页码：2790 / 2795

页数：6

共 14 条

[1] Estimation of Optical Power and Heat-Dissipation Factor of Low-Power SMD LED as a Function of Injection Current and Ambient Temperature
Raypah, Muna E.
Sodipo, Bashiru K.
Devarajan, Mutharasu
Sulaiman, Fauziah
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2016, 63 (01) : 408 - 413
[2] Influence of Injection Current and Ambient Temperature on Intensity and Wavelength of Low-Power SMD LED
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Devarajan, Mutharasu
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[3] Variation of thermal resistance with input current and ambient temperature in low-power SMD LED
Raypah, Muna E.
Dheepan, M. K.
Devarajan, Mutharasu
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[4] Modeling Spectra of Low-Power SMD LEDs as a Function of Ambient Temperature
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[9] Impact of thermal interface material on luminous flux curve of InGaAlP low-power light-emitting diodes
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[10] Transparent Ceramics Enabling High Luminous Flux and Efficacy for the Next-Generation High-Power LED Light
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