利用自感知技术诊断功率器件热界面老化

In this article, we propose a unique and simple method that diagnoses multiple aging effects in power electronic devices minimally invasively and without the necessity of expensive sensors. Different degradation modes, e.g., fatigue of solder and thermal-interface layers, influence the phase of the thermal impedance frequency response function ${\boldsymbol{\angle} \underline{\boldsymbol Z}_{\math...