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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.1
- 수록면
- 7 - 14 (8page)
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High junction temperature directly or indirectly affects the optical performance and reliability of high power LEDs in many ways. This paper is focused on junction temperature characterization of LEDs. High power LEDs (3W) were tested in temperature steps to reach a thermal equilibrium condition between the chamber and the LEDs. The LEDs were generated by pulsed currents with duty ratios (0.091% and 0.061%) in multiple steps from 0mA and 700mA. The diode forward voltages corresponding to the short pulsed currents were monitored to correlate junction temperatures with the forward voltage responses for calibration measurement. In junction temperature measurement, forward voltage responses at different current levels were used to estimate junction temperatures. Finally junction temperatures in multiple steps of currents were estimated in effectively controlled conditions for designing the reliability of LEDs.
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참고문헌 (13)
참고문헌 신청
M. R. Krames / 2007 / Status and Future of High-Power Light-Emitting Diodes for Solid-State Lighting / J. Display Technol 3(2):160
D. A. Steigerwald / 2002 / Illumination with Solid State Lighting Technology / IEEE J. Sel. Topics Quantum Electron 8(2):310
F. M. Steranka / 2002 / High Power LEDs-Technology Status and Market Applications / Phys. Status Solidi A 194(2):380
Y. Aoyama / 2008 / An LED Module Array System Designed for Streetlight Use / Energy 2030 Conference, 2008. Energy 2008 :1
R. Vittori / 2009 / New Solid State Technologies and Light Emission diodes as a Mean of Control and Lighting Source Applicable to Explosion Proof Equipment, With the Scope to Reduce Maintenance, to Limit the Risk of Bad Maintenance and to Expand the Plants’ Life / PCIC Europe, 2009. PCIC EUROPE’09. Conference Record :193
D. A. Steigerwald / 2002 / Illumination with Solid State Lighting Technology / IEEE J. Sel. Topics Quantum Electron 8(2):310
F. M. Steranka / 2002 / High Power LEDs-Technology Status and Market Applications / Phys. Status Solidi A 194(2):380
Y. Aoyama / 2008 / An LED Module Array System Designed for Streetlight Use / Energy 2030 Conference, 2008. Energy 2008 :1
R. Vittori / 2009 / New Solid State Technologies and Light Emission diodes as a Mean of Control and Lighting Source Applicable to Explosion Proof Equipment, With the Scope to Reduce Maintenance, to Limit the Risk of Bad Maintenance and to Expand the Plants’ Life / PCIC Europe, 2009. PCIC EUROPE’09. Conference Record :193
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