Simulation Study of Overcurrent Turn-off Capability in 4500V IGBT Yaohua Wang, Rui Jin, Ge Zhao, Mingchao Gao, Li Li, Lei Cui and Guoqing Leng MATEC Web Conf., 232 (2018) 04058 Published online: 19 November 2018 DOI: 10.1051/matecconf/201823204058