A Low-Cost High-Performance Transient Voltage Sensing Circuit for SiC MOSFETs

  • Chengzi Yang
  • , Huaqing Li
  • , Yunfei Xu
  • , Longyang Yu
  • , Yongbin Jiang
  • , Laili Wang
  • , Yunqing Pei
  • , Hong Zhang
  • , Yongmei Gan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Silicon carbide (SiC) metal-oxide-semiconductor field-effect transistor (MOSFET) present good features on its switching speed, operation voltage and will future improve the performance of power electronic devices in medium and high power. However, it also puts forward new requirements for voltage measurement, which is high bandwidth under high voltage conditions. This paper proposes a high voltage and high bandwidth voltage sensing circuit that uses the characteristics of the same resistor with the same parasitic capacitance to meet the high frequency constraint of voltage sensing circuit. By using the proposed circuit in conjunction with an appropriate load compensation method, the withstand voltage rating of low-voltage and high-bandwidth passive probes can be extended to required levels. The performance of the voltage measurement is experimentally verified and compared.

Original languageEnglish
Title of host publication2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages966-970
Number of pages5
ISBN (Electronic)9781728153018
DOIs
StatePublished - 29 Nov 2020
Event9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia - Nanjing, China
Duration: 29 Nov 20202 Dec 2020

Publication series

Name2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

Conference

Conference9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Country/TerritoryChina
CityNanjing
Period29/11/202/12/20

Keywords

  • SiC MOSFET
  • high bandwidth
  • high voltage
  • voltage sensing circuit

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