报告详情
Over-Voltage and Oscillation Suppression Circuit with Switching Losses Optimization and Clamping Energy Feedback for SiC MOSFET
编号：64
访问权限：公开
更新：2021-07-21 20:02:30 浏览：169次
张贴报告
摘要
The snubber circuit is a cost-effective solution to reduce the serious turn-off over-voltage and oscillation caused by the fast switching characteristics of SiC MOSFET. However, the turn-on switching losses will significantly increase due to the snubber decouples the power loop parasitic inductance during the switching process. In this paper, a SiC MOSFET over-voltage and oscillation suppression circuit (OVSC) with not only switching losses optimization feature but also the clamping energy feedback characteristic is proposed. The over-voltage and oscillation can be effectively suppressed by clamping capacitors, and those capacitors do not participate in the switching process until the over-voltage occurs, which is of benefit to the switching losses reduction compared with RC snubber circuits. Besides, the turn-off over-voltage and oscillation energy stored in clamping capacitors can be feedback to DC and load side through a passive branch composed of an energy feedback inductor and a diode. Experimental results show that OVSC has excellent over-voltage and oscillation suppression performance, and can significantly reduce switching losses compared with RC snubber circuits.
关键词
SiC MOSFET, over-voltage and oscillation, snubber circuit, switching losses optimization.
报告人
Yang ChengZi
Xi’an Jiaotong University稿件作者
全部评论
重要日期
-
会议日期
08月25日
2021
至08月27日
2021
-
04月21日 2021
摘要截稿日期
-
05月15日 2021
摘要录用通知日期
-
06月25日 2021
终稿截稿日期
-
08月24日 2021
报告提交截止日期
-
08月27日 2021
注册截止日期
主办单位
IEEE
IEEE ELECTRONIC DEVICE SOCIETY
IEEE ELECTRONIC DEVICE SOCIETY
承办单位
Huazhong University of Science and Technology
联系方式
- Dr. 刘老师
- liuzc_hust@vip.163.com
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