TY - GEN
T1 - Lifetime prediction based on analytical multi-physics simulation for light-emitting diode (LED) systems
AU - Yang, Xi
AU - Wang, Zili
AU - Ren, Yi
AU - Sun, Bo
AU - Qian, Cheng
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/10
Y1 - 2017/5/10
N2 - A novel method based on the analytical multi-physics simulation to predict the lifetime for LED systems is presented in this paper. LED is a typical multidisciplinary system that transfers electrical input into photonic output, and lifetime prediction is a must for new electronic device before releasing to market. The lifetime feature of LED systems is closely connected to the power, thermal, and optical parameters, but there is rare method concerning all these features to conduct lifetime prediction. In this paper, an original concept, Lumen Impulse (referred as LI), is proposed, which combines the lifetime and performance parameters together to indicate the accumulation of luminous flux in the time domain. With LI being regarded as an objective function, multidisciplinary design optimization (MDO) method is employed to solve the coupling formulas, the lifetime with higher precision can be obtained subsequently. The impacts of certain design parameters in LED systems on the lifetime and LI are discussed to present suggestions for the enhancement of lifetime performance of the LED systems. This research result will be helpful for manufactures and designers to predict the lifetime with higher accuracy and determine a most qualified operating point of LED systems.
AB - A novel method based on the analytical multi-physics simulation to predict the lifetime for LED systems is presented in this paper. LED is a typical multidisciplinary system that transfers electrical input into photonic output, and lifetime prediction is a must for new electronic device before releasing to market. The lifetime feature of LED systems is closely connected to the power, thermal, and optical parameters, but there is rare method concerning all these features to conduct lifetime prediction. In this paper, an original concept, Lumen Impulse (referred as LI), is proposed, which combines the lifetime and performance parameters together to indicate the accumulation of luminous flux in the time domain. With LI being regarded as an objective function, multidisciplinary design optimization (MDO) method is employed to solve the coupling formulas, the lifetime with higher precision can be obtained subsequently. The impacts of certain design parameters in LED systems on the lifetime and LI are discussed to present suggestions for the enhancement of lifetime performance of the LED systems. This research result will be helpful for manufactures and designers to predict the lifetime with higher accuracy and determine a most qualified operating point of LED systems.
UR - https://www.scopus.com/pages/publications/85020166182
U2 - 10.1109/EuroSimE.2017.7926233
DO - 10.1109/EuroSimE.2017.7926233
M3 - 会议稿件
AN - SCOPUS:85020166182
T3 - 2017 18th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2017
BT - 2017 18th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2017
Y2 - 3 April 2017 through 5 April 2017
ER -