Effects of On-State Snap-back Characteristics on the Current Sharing of Parallel RC-IGBTs

Munaf Rahimo*, Paula Diaz Reigosa, Francesco Iannuzzo

*Kontaktforfatter

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Abstract

Reverse Conducting RC-IGBTs are in continuous development for a wide range of voltage classes targeting different power electronics applications. One of the main challenges faced in the design of RC-IGBTs is the on-state snap-back characteristics. Hence, different collector short design concepts have been investigated in order to reduce or eliminate this type of behavior. All previous investigations are based on the assumption that a negative differential resistance zone in the IV output characteristics could lead to failure events when devices are operated in parallel. Some devices might not turn-on during switching transients under real operational conditions leading to very high current densities in the conducting devices. In this paper, the effects of the snap-back characteristics on the switching behavior of parallel RC-IGBTs is presented with the aid of TCAD simulations of 1200V RC-IGBT models. Furthermore, the paper will provide analysis of the current mis-sharing at device and circuit levels.

OriginalsprogEngelsk
TitelPCIM Europe 2022
Antal sider8
ForlagMesago PCIM GmbH
Publikationsdato2022
Sider157-164
ISBN (Trykt)9783800758227
DOI
StatusUdgivet - 2022
BegivenhedInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2022 - Nuremberg, Tyskland
Varighed: 10 maj 202212 maj 2022

Konference

KonferenceInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2022
Land/OmrådeTyskland
ByNuremberg
Periode10/05/202212/05/2022
NavnPCIM Europe Conference Proceedings

Bibliografisk note

Funding Information:
The authors wish to acknowledge the support of the Prof. R. A. Minamisawa and Prof. N. Schulz at the University of Applied Sciences and Arts Northwestern Switzerland, Windisch, Switzerland.

Publisher Copyright:
© VDE VERLAG GMBH, Berlin, Offenbach.

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