Intelligente Gate-Ansteuerung von Leistungshalbleitern
- Project Group:
Leistungselektronische Systeme (PES)
|Short-Circuit Turn OFF Capability of an Adaptive Open Loop Gate Driver for Insulated Gate Bipolar Transistors||
IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society
This paper analyzes how a previously presentedadaptive open loop gate driver handles fault currents. Whencontrolling insulated gate bipolar transistors (IGBTs), it isessential to ensure safe operation in the whole operating range.Most important, the gate driver must be able to safely turn OFFa unacceptably high current like a short-circuit current. Such afault generates a current of unknown magnitude, which has tobe switched off as safe and slow as possible. A special shutdownmode of the investigated open loop gate driver is presented in thispaper, which makes it possible to safely shut down a fault currentwithout knowing the actual operating point of the IGBT. Basedon measurement results it is shown that all currents, includingdesaturation of the IGBT can be safely turned OFF.
|Sensitivity analysis of an adaptive open loop gate driver to manufacturing related varying IGBT parameters|
|New Gate Driver for online adjustable switching behavior of Insulated Gate Bipolar Transistors (IGBTs)||
2019 21th European Conference on Power Electronics and Applications (EPE'19 ECCE Europe)
This paper presents a new gate driver concept that allows an online, open-loop adjustment of the switching behavior of power semiconductors during operation. An inductive impedance instead of an ohmic impedance enables the required adjustable gate current and thus the desired gate voltage curve. The driver can individually adapt the switching behavior of the transistor to each individual switching edge. Thus for example the dv/dt and di/dt can be influenced, whereby the EMI behavior, the reverse recovery rate, the occurring overvoltage or the switching losses can also be influenced. The new gate driver was compared to a conventional resistive gate driver and the measurement results clearly show the advantages of the proposed driver concept.
|A multi-dimensional full automatic power semiconductor test bench for accurate semiconductor loss calculation||
PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
"This paper presents a multi-dimensional full automatic semiconductor test bench for accurate semiconductor
|Investigation of Different Balancing Methods for Modular 3-Level T-Type Voltage Source Converters with Distributed DC-Link Capacitors||
44rd Annual Conference of the IEEE Industrial Electronics Society (IECON)
|Entwurf und Implementierung verschiedener Doppelpulsversuche zur Vermessung von Leistungshalbleitern im Rahmen eines Laborversuchs||Bachelorarbeit|