Electronic components and circuits for extreme temperature environments
Electronic components and circuits for extreme temperature environments
复制标题
适用于极端温度环境的电子元件和电路
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Elbuluk
中科院分区：
文献类型：
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作者：
A. Hammoud;R. Patterson;S. Gerber;M. Elbuluk
行星探测任务和深空探测器需要能够在极低温度环境下高效可靠运行的电力管理和控制系统。目前，在深空寒冷环境中运行的航天器携带放射性同位素加热装置，以便将机载电子设备的周围温度保持在约20/spl deg/C。能够在低温下工作的电子设备不仅能承受深空的恶劣环境，而且还能通过消除或减少放射性同位素加热装置及其相关结构来减小系统的尺寸和重量，从而降低系统开发和发射成本。此外，设计用于在低温下操作的功率电子电路预计将导致比室温下更有效的系统。这种改进是由于半导体和介电材料在低温下的电和热特性的更好的行为和容限。NASA Glenn研究中心的低温电子计划专注于研究和开发适用于航空航天环境和深空探测任务的电子元件，电路和系统。目前正在研究可在低温（低至-243/spl deg/C或30 K）下可靠使用的设备和系统。一些正在表征的商用现成和开发的组件包括无源和有源器件和电路。本文介绍了美国宇航局格伦研究中心低温电子计划的概况。还讨论了通过内部元件和电路测试获得的选定数据。
Planetary exploration missions and deep space probes require electrical power management and control systems that are capable of efficient and reliable operation in very low temperature environments. At present, spacecraft operating in the cold environment of deep space carry radioisotope heating units in order to maintain the surrounding temperature of the on-board electronics at approximately 20/spl deg/C. Electronics capable of operation at cryogenic temperatures will not only tolerate the hostile environment of deep space but also reduce system size and weight by eliminating or reducing the radioisotope heating units and their associated structures; thereby reducing system development as well as launch costs. In addition, power electronic circuits designed for operation at low temperatures are expected to result in more efficient systems than those at room temperature. This improvement results from better behavior and tolerance in the electrical and thermal properties of semiconductor and dielectric materials at low temperatures. The Low Temperature Electronics Program at the NASA Glenn Research Center focuses on research and development of electrical components, circuits, and systems suitable for applications in the aerospace environment and deep space exploration missions. Research is being conducted on devices and systems for reliable use down to cryogenic temperatures (as low as -243/spl deg/C or 30 K). Some of the commercial-off-the-shelf as well as developed components that are being characterized includes passive and active devices and circuits. An overview of the NASA Glenn Research Center Low Temperature Electronic Program is presented in this paper. Selected data obtained through in-house components and circuits testing is also discussed.