Abstract
An experimental investigation about the behaviour of 3300V – 1200A IGBT modules both at high temperature and for large output currents is presented. The real IGBT turn off limits in terms of maximum switchable current and the short circuit behaviour at larger different environmental temperatures are identified. The experimental study has been performed by means of a non-destructive experimental set-up where IGBT modules are switched on an inductive load in presence of a protection circuit. It is activated at the occurrence of a dangerous operating conditions thus preventing the IGBT module failure.
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