Overall low inductance module concept for maximum system performance

Increasing efficiency and lowering EMI are important goals for designing power electronic systems. To obtain this, the parasitic inductance of the current commutation loops is under focus. In this paper an overall low inductance module is shown which provides not only low inductance within the half bridge but also low inductance among half bridges itself, e.g. in a 3 phase inverter. With lowest stray inductances among half bridges, there is the chance to lower RMS current in the DC-link caps which helps to reduce the heat generation in the DC-link. The new module concept enables not only optimized 3 phase full bridge systems but also optimum performance of three level NPC (Neutral Point Clamped) inverters.