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A Low-Cost High-Bandwidth Easy-to-Design Current Sensing Circuit for SiC MOSFETs

  • Chengzi Yang
  • , Mengyu Zhu
  • , Yunfei Xu
  • , Xing Shuo Liu
  • , Yongbin Jiang
  • , Laili Wang
  • , Yunqing Pei
  • , Hong Zhang
  • , Yongmei Gan
  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Using current sense resistor (CSR) is an easy and reliable method to sense current. However, when using CSR to sense a transient current even the tiny parasitic inductance of non-inductive CSR brings a significant impact on its sensing performance. In this paper, a low-cost high-bandwidth and easy-design transient current sensor circuit which uses CSR and an LR network to compensate for the effect of parasitic inductance is proposed. The effect of the load on the performance of the proposed current sensing circuit when connecting it on the oscillation is analyzed in detail. Finally, experimental studies under an inductive load double pulse test (DPT) setup with SiC MOSFETs are carried out to verify the validity and feasibility of the proposed transient current sensing circuit. The LR network in the proposed current sensing circuit can fully compensate for the effect of parasitic inductance on CSR.

源语言英语
主期刊名2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
出版商Institute of Electrical and Electronics Engineers Inc.
3138-3142
页数5
ISBN(电子版)9781728153018
DOI
出版状态已出版 - 29 11月 2020
活动9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia - Nanjing, 中国
期限: 29 11月 20202 12月 2020

出版系列

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

会议

会议9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
国家/地区中国
Nanjing
时期29/11/202/12/20

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