Modeling of common mode interferences produced by a switched mode power supply

This work deals with the examination of the influence of interconnections on fast transients in power electronic circuits and the creation of a simulation tool for modeling power systems with taking into account this phenomenon. The simulation tool must provide exact models of semiconductors and the possibility to implement parasitic influences of conductors. The PEEC method allows to represent the interconnection structure as an equivalent passive circuit. This fact enables the analysis of the power electronic circuit under consideration of interconnections. Ansoft Simplorer® is a wide spread professional code for modeling of power circuits. It can be expanded by additional elements programmed in C++. In this work a PEEC model is implemented into Simplorer®. Thus, it´s possible to simulate the interconnections simultaneously with the standard lumped circuits.