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Low Temperature Electronics 


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In many future NASA missions (such as deep-space exploration) high power electrical components and systems must operate reliably and efficiently in environments where the temperature range is extreme. NASA Glenn is working at the heart of this uncharted area in space and aeronautics, extending the temperature envelope for a suite of electronic systems by developing components and systems that provide tolerance to hostile environments. The goals of the low temperature electronics program are:
  • To support development of efficient, lightweight, long-life power components and systems capable of low temperature operation.
  • To support customers and users in their development of the technologies that they need.

[1000 Watt DC/DC Converter]

1000 Watt DC/DC Converter, with 500 Volt output, which operates at -185 ºC.

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Applications:

Exposure and operation of electronic systems and devices in harsh environments, where cold temperatures are encountered, are anticipated in many applications. These include:
  • Space
    • Surface exploration of the outer planets
    • Space probes
    • Communication & imaging satellites
    • Space based telescopes
       
  • Terrestrial
    • Commercial energy storage
    • Magnetic levitation transport systems
    • Medical instrumentation & biomedical research
    • Physics research

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Benefits

Power electronics capable of low temperature operation will not only survive the harsh environments but may also provide several system benefits. Among these are:
  • Passive thermal management
  • Improved reliability & lifetime
  • Higher energy & power densities
  • Reduced weight & launch costs

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R & D Efforts

The efforts are pursued by analyzing, designing, and evaluating components and systems; fabricating and demonstrating prototype circuits. Typical approaches that are adopted during the investigation are as follows:
  • Identify application requirements & system specifications
  • Select and characterize state-of-the-art components
  • Using existing technology, demonstrate circuits & identify critical technology needs
  • Develop advanced components & circuits to meet critical needs
  • Transfer technology to mission/user groups
 

Some of the major on-going R&D efforts that are being performed in-house are:

  • Systems
    • DC/DC converters
    • Power supplies
    • Energy storage
  • Components
    • Power switches
    • Capacitors & magnetics
    • Integrated circuits
    • Fiber-optics
    • Batteries
  • Materials
    • Dielectrics
    • Insulation
Planned future efforts will focus on, but are not limited to, the following:
  • Communication systems
  • Superconducting hybrid devices
  • Sensor circuits & interfaces

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Abstracts 

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Facilities

Major research and test facilities exist at the NASA Glenn Research Center that can be utilized to carry out the activities of this program. These state-of-the-art facilities include:
  • Cryogenic Chambers
  • Passive Components Evaluation
  • Semiconductor Characterization
  • Dielectric Material Characterization
  • Cryogenic Circuit Characterization

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Collaboration

Coordination of the research and development efforts are implemented extensively with various partners. This collaboration involves:
  • Government Agencies
  • Aerospace Industry
  • Academia
The joint collaborative work with the various institutions is implemented via the following venues:
  • In-House
  • Contracts
  • Grants
  • Space Act Agreements (SAA)
  • Small Business Innovative Research (SBIR)
 

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Curator:  Sandra.A.Zolo@nasa.gov  and NASA Official Responsible For Content:  Sharon.K.Miller@grc.nasa.gov 
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Last Updated: 04/04/2008