SiC Solid-State Disconnect for High Power System Applications

Xue Qing Li; Peter Alexandrov; Leonid Fursin; Christopher  Dries; Jian Hui Zhao

doi:10.4028/www.scientific.net/MSF.717-720.1249

Paper Titles

A Compact 5-nH One-Phase-Leg SiC Power Module for a 600V-60A-40W/cc Inverter
p.1233

Performance of a 25kW 700V Galvanically Isolated Bidirectional DC-DC Converter Using 1.2kV Silicon Carbide MOSFETs and Schottky Diodes
p.1237

Switching Losses in a SiC-Based DC-DC Multilevel Boost Converter
p.1241

High Voltage SiC Schottky Diodes in Rectifiers for X-Ray Generators
p.1245

SiC Solid-State Disconnect for High Power System Applications
p.1249

A 450°C High Voltage Gain AC Coupled Differential Amplifier
p.1253

Bipolar Integrated OR-NOR Gate in 4H-SiC
p.1257

300C Capable Digital Integrated Circuits in SiC Technology
p.1261

Reliability of Silicon Carbide Integrated Circuits at 300°C
p.1265

HomeMaterials Science ForumMaterials Science Forum Vols. 717-720SiC Solid-State Disconnect for High Power System...

SiC Solid-State Disconnect for High Power System Applications

Abstract:

This paper reports the design and experimental demonstration of a novel bi-directional solid-state disconnect (SSD) based on Silicon Carbide (SiC) depletion-mode junction field effect transistors (JFETs) for protecting critical sensitive components in high power systems. The SSD is able to provide a fast disconnect action upon receiving a preset trip current flowing through it and has a very low insertion loss, which makes it suitable for high power applications. For the application in 150kW six-phase power inverter systems, an insertion loss of less than 0.91% and a current fall time of less than 20μs for trip currents of about 800A have been demonstrated experimentally. To the best of our knowledge, there are no other solid-state disconnects available of comparable parameters.

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Silicon Carbide and Related Materials 2011

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Periodical:

Materials Science Forum (Volumes 717-720)

Pages:

1249-1252

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.717-720.1249

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Online since:

May 2012

Authors:

Xue Qing Li, Peter Alexandrov, Leonid Fursin, Christopher Dries, Jian Hui Zhao

Keywords:

Circuit Breaker, Depletion-Mode JFET, Solid-State Disconnect, Surge Current Protection

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References

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