Simulation Study of the Effect of Threshold Voltage Hysteresis on Switching Characteristics of SiC MOSFETs

Cai, YumengState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China (författare)

Part of ISBN 9783800760916QC 20240704
The effect of VTH hysteresis on switching characteristics of SiC MOSFETs is investigated by TCAD in this paper. A device-circuit mixed-mode simulation model is built to simulate VTH hysteresis. The result illustrates that VTH hysteresis decreases VTH and increases channel mobility, which leads to earlier turn-on and larger ID. Moreover, the higher the interface state density (Dit) is, the more obvious the transient effect. However, ID remains unchanged with VTH hysteresis and it decreases with higher Dit without considering VTH hysteresis. Therefore, the VTH hysteresis is beneficial and the findings can be useful for distributing Dit when modeling the chip process.

Xu, HaoState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China (författare)
Sun, PengState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China (författare)
Deng, ErpingHefei University of Technology, China (författare)
Zhao, ZhibinState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China (författare)
Li, XuebaoState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China (författare)
Nee, Hans-Peter,1963-KTH,Elkraftteknik(Swepub:kth)u1ycw7mc (författare)
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), ChinaHefei University of Technology, China (creator_code:org_t)

Ingår i:International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2023: Mesago PCIM GmbH, s. 212-216

Av författaren/redakt...: Cai, Yumeng; Xu, Hao; Sun, Peng; Deng, Erping; Zhao, Zhibin; Li, Xuebao; visa fler...; Nee, Hans-Peter, ...; visa färre...

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