Scholarlink

The phase-leg circuit is essential in the motor driver for the aircraft, therefore its crosstalk effect needs to be suppressed while reducing power consumption as much as possible. This paper summarizes the mechanism and influencing factors of the crosstalk problem of SiC MOSFET phase-leg circuit. Combining the differences in characteristics of SiC MOSFET and Si-based devices, it can be seen that the SiC MOSFET phase-leg circuit has a poorer anti-interference ability to crosstalk effect. The factors affecting the crosstalk voltage are analyzed by building a calculation model, and the impact of different circuit parameters on crosstalk is verified through double-pulse test. In order to suppress the crosstalk phenomenon of phase-leg circuit, an active clamp suppression method was proposed, and its effectiveness and its advantages in switching losses were verified through experiments.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Crosstalk Analysis and Suppression of SiC MOSFET for Switching Loss Reduction

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Ruoxuan Wang,
  • Xuejian Wang,
  • Fei Li,
  • Yong Yu,
  • Guofei Teng

摘要

The phase-leg circuit is essential in the motor driver for the aircraft, therefore its crosstalk effect needs to be suppressed while reducing power consumption as much as possible. This paper summarizes the mechanism and influencing factors of the crosstalk problem of SiC MOSFET phase-leg circuit. Combining the differences in characteristics of SiC MOSFET and Si-based devices, it can be seen that the SiC MOSFET phase-leg circuit has a poorer anti-interference ability to crosstalk effect. The factors affecting the crosstalk voltage are analyzed by building a calculation model, and the impact of different circuit parameters on crosstalk is verified through double-pulse test. In order to suppress the crosstalk phenomenon of phase-leg circuit, an active clamp suppression method was proposed, and its effectiveness and its advantages in switching losses were verified through experiments.