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The applicability of classical macromodeling techniques to dynamic electrothermal analysis is reviewed, with emphasis on specific aspects of the Fourier heat conduction problem. Modeling based on the characterization of thermal multiports is considered, and the identification of corresponding thermal impedances in frequency and time domain is discussed, along with the synthesis of electrical equivalents...
In this paper, a novel multi-port RC network is proposed to describe the dynamic thermal feedback in bipolar devices/circuits with multiple heat sources. The parameters of the circuit can be reliably identified by standard electrical macro-modeling techniques. The representation is shown to be more compact than the usual Foster topology due to the limited number of dynamic elements. The approach is...
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