Characterization of IGBT devices for use in series resonant inverter for induction heating applications

This paper aims to determine the maximum frequency achievable in a 25 kW series inverter for induction heating applications and to compare, in hard switching conditions, four fast transistors IGBTs 600A and 1200V modules encapsulated in 62mm from different suppliers. The comparison has been done at 25 and 125ºC in a set-up. Important differences between modules have been obtained depending on the die temperature.