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Silicon Carbide based 28 VDC Distribution


TECHNOLOGY AREAS: Ground/Sea Vehicles, Electronics


OBJECTIVE: Design a 28VDC 16 channel silicon carbide (SiC) based power distribution box capable of operating across on all military ground vehicles. Using SiC materials; size, weight, and cooling requirements should be reduced while max current throughput is increased from silicon based designs.

DESCRIPTION: Advanced SiC solid state technology is necessary for future military vehicle systems with increased power demand. Vehicle electrical power requirements are growing and without technological advances, trade-offs will have to be made on payload vs. capability. The electrical power distribution devices must account for safety, efficiency, scalability, configurability, CAN control, integration, and robust stable operation.  The solution will have the processing power necessary fault detection and handling capabilities, built-in diagnostics, and stand alone and remote control in a compact device suitable for use in military ground vehicle applications.  The use of wide temperature power electronics that can operate in a -50C-71C ambient environment is required.  Topic proposals should focus on scalable power units capable of distributing 250amps 28VDC from a single 16 channel device and be capable of paralleling devices together to provide 500, 750, and 1000amp distribution to a single load using multiple 16 channel boxes.

PHASE I: Develop a proof of concept for an advanced intelligent 28VDC SiC power module that addresses the features and functionality described above.  A technically feasible solution must be analytically or objectively shown in Phase I and meet the same performance requirements as what would be required for a modernized combat vehicle.

PHASE II: Electrical, thermal, mechanical, and functional aspects of a 28VDC solid state SiC 16 channel power control solution will be designed, developed, and built.  Demonstration and technology evaluation will take place in a relevant laboratory environment or on a military ground vehicle system.  Phase II will reach at least TRL 5 and commercial viability will be quantified.

PHASE III: Mechanical packaging and integration of the solution into a vehicle with low voltage power buses will be achieved and a technology transition will occur so the device can be used in military ground vehicle applications.

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