Estimating Power Dissipation through Thermal Measurements in Power Circuits

In systems working in strongly distorted regimes, electrical measurements are insufficient for determining the total power dissipation. The study proposes an alternative method for estimating power dissipation in an electronic system in which thermal measurements are correlated with thermal modelling and simulations for a power circuit, to estimate power dissipation in the assembly. It is shown that modelling the component packages and measuring the temperature rise in a power system, the total power dissipation can be estimated.