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Short-circuit detection is a fundamental function of most inverters. In this paper, two new fast and easily implementable short-circuit detection approaches are presented. The first one offers a significantly accelerated desaturation detection. The second one allows a full inverter to be protected by only one short-circuit detection circuit. Both approaches are verified by simulations and hardware...
In this paper, a short-circuit protection of an IGBT, based on current measurement is proposed. The IGBT collector current estimate is obtained by filtering the voltage between the auxiliary emitter and the power emitter terminals of an IGBT module. The proposed scheme utilizes a large bandwidth analog circuit which enables to the detect fault current regardless of the current slope. According to...
The paper deals with the evaluation of robustness of high power Press Pack IGBT modules under short circuit conditions. The severity of the tests is usually related to the achievement of the real failure mode which drives the device to withstand a big amount of energy. The most and well known methods to evaluate the robustness of the devices have been analyzed and improved in order to operate with...
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