Scalable Solid-State Circuit Breaker (SSCB)

Award Information
Agency: Department of Defense
Branch: Army
Contract: W56HZV-09-C-0159
Agency Tracking Number: O081-EP6-2010
Amount: $99,935.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: OSD08-EP6
Solicitation Number: 2008.1
Small Business Information
201 Research Blvd., Starkville, MS, 39759
DUNS: 622392111
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 David Sheridan
 Director of Engineering
 (662) 324-7607
Business Contact
 Brenda Temple
Title: Contract Administrator
Phone: (662) 324-7607
Research Institution
Solid-state circuit breakers have significant advantage over electromechanically relays due to the use of various types of solid-state transistors used to control the power flow. These transistors are generally much faster than their mechanical counterparts, switching orders of magnitude, hence allowing superior fault isolation capabilities. Unfortunately, the currently available current and voltage range of solid-state circuit breakers do not cover the specifications for the MEA or Army hybrid vehicle requirements. The limitations of the current solid-state relays are inherent to the fact that the switching transistors are built upon silicon technology. Silicon Carbide (SiC) JFET technology from SemiSouth has the ability to dramatically eliminate this current limitation, and impact near-term revolutionary system insertion opportunities. The optimal solution will be to develop a complete Solid State Circuit Breaker based on this innovative, reliable, scalable SiC Vertical JFET technology. During this Phase I program, SemiSouth will develop leverage existing Air Force funded development and prototype funding of large area 800V/20A SiC VJFET devices to build a prototype 600V/50A SSCB module and provide complete characterization of the module’s electrical characteristics and thermal design space in anticipation of scaling the VJFETs and SSCB design to 1200V and 200A+.

* Information listed above is at the time of submission. *

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