Crosstalk mechanism and suppression methods for enhancemen t-Mode GaN HEMTs in A phase-leg topology
Paper in proceeding, 2019

It has been demonstrated that Enhancement-mode GaN HEMT(eGaN HEMT) has lower conduction losses and higher switching speed. However, higher switching speed will cause higher dVDS/dt leading to worse crosstalk problems. This paper analyzes the mechanism of crosstalk for eGaN HEMT first. Then, the mathematical model of crosstalk voltage and its influence factors are given. A double pulse test model is established and three kinds of crosstalk suppression methods without auxiliary circuit are simulated and compared. The simulation results may give a guideline for choosing which method in specific situation.

Author

Zihe Peng

Nanjing University of Aeronautics and Astronautics

Haihong Qin

Nanjing University of Aeronautics and Astronautics

Jiayan Gong

Nanjing University of Aeronautics and Astronautics

Ying Zhang

Nanjing University of Aeronautics and Astronautics

Qian Xun

Chalmers, Electrical Engineering, Electric Power Engineering, Electrical Machines and Power Electronics

PCIM Asia 2019 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Proceedings

147-153

2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Asia 2019
Shanghai, China,

Subject Categories

Infrastructure Engineering

Vehicle Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering

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6/7/2021 1