Original scientific paper

Real-Time Measurement of IGBT’s Operating Temperature

Ivan Bahun ; KONČAR, Electric Vehicles, Velimira Škorpika 7, 10 000, Zagreb, Croatia
Neven Čobanov ; KONČAR, Electrical Engineering Institute, Fallerovo šetalište 22, 10 000, Zagreb, Croatia
Željko Jakopović ; University of Zagreb, Faculty of Electrical Engineering and Computing, Department of Electric Machines, Drives and Automation, Unska 3, 10 000, Zagreb, Croatia

Abstract

Temperature management and control are among the most critical functions in power electronic devices. Knowledge of power semiconductor’s operating temperature is important for circuit design, as well as for converter control. Virtual junction temperature measurement or estimation is not an easy task, therefore designing the appropriate circuitry for virtual junction temperature in the real operating conditions not affecting regular circuit operation is a demanding task for engineers. The proposed method enables virtual junction temperature estimation based on the real-time measurement of semiconductor’s quasi-threshold voltage using dedicated modified gate driver circuit.

Keywords

IGBT; Measurement; Threshold voltage; Temperature sensitive electrical parameter

Hrčak ID:

78297

URI

https://hrcak.srce.hr/78297

Publication date:

6.3.2012.

Article data in other languages: croatian

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