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

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

Xu, Hao (författare): State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China

Sun, Peng (författare): State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China

Zhao, Zhibin (författare): State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China

Li, Xuebao (författare): State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), China

(creator_code:org_t)

Mesago PCIM GmbH, 2023
2023
Engelska.
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

Relaterad länk:: https://urn.kb.se/re...; visa fler...; https://doi.org/10.3...; visa färre...

Abstract Ämnesord

Stäng

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.

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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