Design Aspects of 11kW On-Board Charger based on SiC Technology for Electric Vehicles

Research output: Chapter in Book/Report/Conference proceedingConference paper


This research presents an On-Board Charger (OBC) design based on SiC technology for electric-vehicle applications. Due to the capability of high-speed switching of SiC MOSFETs, SiC-based OBC has the ability to achieve high power density and lightweight. In this research, soft-switching techniques with zero-voltage-switching (ZVS) and zero-current-switching (ZCS) are adopted for DC-DC stage to increase the overall efficiency of the SiC-based OBC. An 11 kW SiC-based OBC has been designed and verified by simulation at different switching frequencies (i.e. 250 kHz, 500 kHz), expected efficiency of 96% and power density of 30W/in3.
Original languageEnglish
Title of host publicationEVS 31 & EVTeC 2018, Kobe, Japan, October 1 - 3, 2018
Number of pages6
Publication statusPublished - 2 Oct 2018
EventEVS31 - Kobe, Japan
Duration: 30 Sep 20184 Oct 2018




  • On-Board Charger
  • AC-DC converter
  • Vienna rectifier
  • DC-DC converter
  • Zero voltage switching
  • Zero current switching
  • SiC devices


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