The present invention concerns a system comprising a multi-die power module composed of dies and a controller receiving plural consecutive input patterns for activating the dies of the multi-die power module, wherein the dies are grouped into plural groups of at least one die and in that the controller comprises: —means for outputting one gate to source signal for each group of at least one die, the rising edges and/or falling edges of at least one gate to source signal being iteratively time shifted from the rising edge and/or a falling edge of the other gate to source signals for other groups of dies.