CHEN Huan-ting, CHEN Fu-chang, HE Yang etc. Analysis of Thermal Characteristics of A Multichip Light-emitting Diodes Device[J]. Chinese Journal of Luminescence, 2018,39(5): 751-756
CHEN Huan-ting, CHEN Fu-chang, HE Yang etc. Analysis of Thermal Characteristics of A Multichip Light-emitting Diodes Device[J]. Chinese Journal of Luminescence, 2018,39(5): 751-756 DOI: 10.3788/fgxb20183905.0751.
Analysis of Thermal Characteristics of A Multichip Light-emitting Diodes Device
A multichip LED device has complex interaction and mechanism due to thermal coupling effect. An estimation method for the thermal network model of the multichip LED device based on multichip thermal model was proposed in this paper. The predicted junction temperature in finite volume method was applied to the multichip LED device. The minimum
maximum and average deviations of junction temperature between the proposed model and the measurement are about 0.8%
6.8% and 3.4%
respectively. The calculated results are in good agreement with the measurements. These results confirm that the multichip thermal model with finite volume method can provide accurate predictions for junction temperature. The work offers a new research and development tool for practicing LED designers to accurately predict the junction temperature of LED system.
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