Behavioral modelling of ICs for investigations of conducted emissions in automotive systems

Because of increasing the electronics in a car, the automotive industry researches for simulating the whole system and how each element could influence another unexpected element. These are often caused by conducted emissions, which are a major challenge in the simulation of automotive systems. One important task is modeling power-ICs to simulate the switching depending on the load. Although circuit based models could perform this task in principle, the required computing-resources for simulation exceed acceptable limits. The applicability of a highly abstracted model will be shown and correlated with measurements and circuit based simulation. This work is a part to find a way to develop a load-independent model for EMC-simulation, but also doesn't need to much simulation-time. This work has been funded by the "Bayerische Forschungsstiftung" project MISEA