State-of-the-art low voltage and high voltage IGBTs in soft switching operation

This paper presents switching and short circuit behavior of state-of-the-art low and high voltage IGBTs in soft switching operation. PT and NPT trench-gate IGBTs are compared with standard and optimized fast IGBTs in zero voltage and zero current switching operation. The soft switching characteristics of 1.2 kV, 3.3 kV, and 4.5 kV IGBTs are presented. A test set-up that constitutes an auxiliary resonant commutated pole switching cell is used to characterize the devices.

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