D13.10 - Implementation of Soft-Switching in SiC Devices with Integrated Optical Sensing

Thursday, March 26, 2026

12:00 PM - 1:45 PM CT

Location: Hemisfair Ballroom

Technical Dialogue Presenter(s)

Yingchao Chi

University of Cambridge

Presentation

Co-Author(s)

BH

Borong Hu

Cambridge University
BL

Benxuan Li

University of Cambridge
Zhenshuai Rong

University of Cambridge
Jinfeng Zhang

University of Cambridge
TL

Teng Long

University of Cambridge

This paper presents an optical zero-voltage switching (ZVS) technique that exploits the intrinsic electroluminescence (EL) of silicon carbide (SiC) MOSFETs to achieve soft switching. A novel optically integrated SiC package is developed, incorporating a silicon photomultiplier (SiPM) for photon detection. By analyzing the emission spectrum of the SiC body diode and optimizing the distance of the SiPM, the photon detection efficiency is significantly improved. This method eliminates the need for conventional voltage sensing and complex control algorithms, enabling fully adaptive gate driving that dynamically responds to load variations.