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
PCIM Asia 2019 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Proceedings
147-153
9783800749713 (ISBN)
2019 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Asia 2019
Shanghai, China,
Shanghai, China,
Subject Categories
Infrastructure Engineering
Vehicle Engineering
Other Electrical Engineering, Electronic Engineering, Information Engineering