Algorithms for indirect investigation of heat distribution in electronic systems

Abstract

This paper deals with the development of methodology suited for design of computation algorithm which is able to determine power losses of electronic systems based on measured temperature distribution (thermo-vision measurements). For such purpose deterministic algorithms for power loss identification were developed using two different approaches. Both of them were verified by simulation experiments and relevant simulation models.Applications of proposed methodologies were further used for more complex electronic systems – brick power supply module. First, thermo-vision measurements of selected system's operation were done in order to verify proposed estimation methodologies. The power loss determination estimated from designed methodologies was verified by the comparison of results from the thermo-vision measurements of operation and the experiments of thermal simulation.Finally, the suitability of methodologies was tested in more complex systems such as smartphones. The investigation of accuracy of the designed methodology was performed similarly by the comparison of simulation and measurements.