Mutual influence of quasistatic and dynamic current imbalances of paralleled IGBTs

Static and quasistatic current imbalances of paralleled IGBTs and their free-wheeling diodes not only cause unbalanced ON-state losses but can affect current sharing during switching transients. Further, dynamic current imbalances can lead to quasistatic current imbalances. These mutual influences are analysed by TCAD-simulations and measurements of high voltage IGBTs.