Comparison of Junction Temperature Measurement Methods for Power Module

Inhalt:
Junction temperature (Tj) of power device within the module must be checked to prevent damage from exceeding the rated temperature. This paper shows four ways to measure this temperature. The first method is through calculation. The second method is through simulation with ICEPACK. The third and fourth methods check the Tj through actual measurements with thermo-coupler (TC) wire and thermal camera. Finally, the Tj obtained by four methods are compared and analyzed so that an appropriate method can be used for the situation.