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The influence of still air environment on thermal transient measurement of high power LED

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4 Author(s)
Anithambigai, P. ; Nano Opto Electron. Lab. (NOR), Univ. Sains Malaysia (USM), Minden, Malaysia ; Teeba, N. ; Dinash, K. ; Mutharasu, D.

The surrounding air influence on the thermal transient measurement was studied. The measurements were carried out by setting two boundary conditions where one was measured in open air condition and another transient was captured under still air environment. The data obtained were analysed using structure function evaluation. Analysis of the experimental methods reveal that the thermal resistance of the high power LED is much lower in still air condition compared to open air condition. For the same driving current of 600mA, the total thermal resistance for open air was 8.07692K/W whereas as for still air condition the value was much lower, 7.26577K/W.

Published in:

Quality Electronic Design (ASQED), 2010 2nd Asia Symposium on

Date of Conference:

3-4 Aug. 2010