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This paper describes a high-speed protection circuit for IGBTs subjected to hard-switching faults (HSF). The reverse transfer capacitance depends on a collector-emitter voltage and it produces a significant effect on a switching behavior not only under normal conditions but also under HSF conditions. A gate charge characteristic under HSF conditions differs from that under normal turn-on conditions...
Many commercial and military transport systems have fault diagnostic functions implemented to help protect the device when a severe fault occurs. However, most present systems do not contain prognostics capability which would allow operators to observe an unhealthy system component in its pre- fault condition. In industry applications, scheduled downtime can result in considerable cost avoidance....
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