Patent ID: 8547687
Filing Date: 2013-10-01
Classification: H01L

Abstract:
1. Power semiconductor device cooling assembly for cooling a power semiconductor device, wherein the assembly comprises an actively cooled heat sink and a controller, wherein the controller is adapted for adjusting the cooling efficiency of the heat sink depending on the temperature of the high current carrying semiconductor junction comprised in the power semiconductor device, wherein the controller is adapted for receiving a temperature signal, the temperature signal specifying an actually measured temperature value of the high current carrying semiconductor junction, wherein the controller comprises a selection module adapted for selecting between a feedback control mode and a feedforward control mode for adjusting the cooling efficiency, wherein in the feedback mode the adjustment of the cooling efficiency is performed depending on the temperature signal and wherein in the feedforward mode the adjustment of the cooling efficiency is performed depending on a desired or measured output power level of the power semiconductor device using a model, the model being adapted for predicting the thermal power dissipation against said output power level, wherein the selection module is adapted to perform the selection based on the signal quality of the temperature signal.