Parallel connection of super-junction MOSFETs in a PFC application

The paper deals with an experimental analysis on the behavior of parallel connections of super-junction power MOSFET devices in a boost converter used as power factor corrector (PFC). The main impact of the parameter variation on the parallel connection has been treated. The experimental evaluation of the current sharing in parallel connection has been carried out in several operative conditions by considering the influence of different parameters. Finally, a specific arrangement able to reduce the current imbalance of the devices has been experimented and discussed.