Physics – General Physics
Scientific paper
2008-01-07
Dans 13th International Worshop on THERMal INvestigations of ICs and Systems - THERMINIC 2007, Budapest : Hongrie (2007)
Physics
General Physics
Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)
Scientific paper
This paper presents thermal analyses of a power amplifier placed in a wind tunnel. All the investigations are based on the transient temperature measurements performed during the circuit cooling process. The measured cooling curves were used to compute the cumulative and differential structure functions for the circuit with a heat sink. These functions helped to determine the optimal values of circuit model parameters necessary for numerical thermal simulations. The experiments demonstrated the influence of the wind speed on the value of the heat transfer coefficient and consequently on the temperature of the entire structure.
Banaszczyk Jedrzej
Janicki M.
Kaminski Matthias
Mey G. de
Napieralski Andrzej
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