SBIR-STTR Award

Radiation-Resistant, High-Efficiency Direct Current-Direct Current (DC-DC) Converters For Spacecraft Loads
Award last edited on: 10/12/2011

Sponsored Program
SBIR
Awarding Agency
DOD : AF
Total Award Amount
$95,980
Award Phase
1
Solicitation Topic Code
AF103-080
Principal Investigator
Neal Butler

Company Information

Diversified Technologies Inc (AKA: Diversified Technologies Corporation)

35 Wiggins Avenue
Bedford, MA 01730
   (781) 275-9444
   info@divtecs.com
   www.divtecs.com
Location: Multiple
Congr. District: 06
County: Middlesex

Phase I

Contract Number: ----------
Start Date: ----    Completed: ----
Phase I year
2011
Phase I Amount
$95,980
Delivery of power to satellite subsystems requires efficient DC-DC down converters that can support multiple spacecraft loads at very low output voltages. The converters must be tolerant to radiation, support loads of 25 watts or more, utilize a minimum amount of power during the conversion, and provide reliable operation for 15 years or longer. The key technical requirements are to improve the efficiency of conversion (in a single step) from 80 volts direct current (VDC) to 1.2VDC, provide flexibility through additional intermediate voltage outputs (e.g., ±5VDC, ±15VDC), in a configuration with high radiation tolerance and the reliability to support multi-year space operations. The goal of this SBIR is to develop a capable DC converter. In Phase 1 DTI will begin defining the qualification requirements for the full converter to be built in Phase II, and define the tasks to be accomplished in Phase II to achieve a full specification, qualifiable prototype at the end of Phase II.

Benefit:
The technology should be capable of supporting a 15-year mission in Geosynchronous Earth Orbit (GEO) or Medium Earth Orbit (MEO), and 5 years in Low Earth Orbit (LEO) after 5 years of ground storage. Combining these parameters (efficiency, high input/low output voltage, peak power, power density, and radiation tolerance) requires innovative architecture and packaging solutions.

Keywords:
Dc-Dc Converters, Spacecraft Power System, Power Management And Distribution, Point-Of-Use Power, Down Conversion, Power Management, Power Conversion,

Phase II

Contract Number: ----------
Start Date: ----    Completed: ----
Phase II year
----
Phase II Amount
----