运算放大器单粒子瞬态脉冲效应试验评估及防护设计

程佳; 马英起; 韩建伟; 朱翔; 上官士鹏; 陈睿

doi:10.11728/cjss2017.02.222

运算放大器单粒子瞬态脉冲效应试验评估及防护设计

doi: 10.11728/cjss2017.02.222 cstr: 32142.14.cjss2017.02.222

程佳^1,2,
马英起¹,
韩建伟¹,
朱翔^1,2,
上官士鹏^1,2,
陈睿^1,2

1. 中国科学院国家空间科学中心空间环境特殊效应实验室北京 100190;
2. 中国科学院大学北京 100049

基金项目:

国家自然科学基金项目资助（41304148）

详细信息

作者简介:

程佳,E-mail:1126265201@qq.com

中图分类号: P353
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出版历程
- 收稿日期: 2016-02-25
- 修回日期: 2017-01-02
- 刊出日期: 2017-03-15

Experimental Assessment and Mitigation of Operational Amplifier's SET Effect

1. Space Environment Effects Laboratory, National Space Science Center, Chinese Academy of Sciences, Beijing 100190;
2. University of Chinese Academy of Sciences, Beijing 100049

摘要

摘要: 线性器件的单粒子瞬态脉冲效应（SET）具有瞬发性和传播性，其对星用电子系统和设备的在轨故障定位及防护设计造成较大困难，已成为威胁航天器可靠性的重要因素之一.星用电子设备需要对所采用线性器件的SET特征进行细致的试验评估，以确定其最坏情况，并在此基础上结合具体应用电路特点进行有针对性的滤波等防护设计.本文以典型的星用线性器件LM124运算放大器作为研究对象，利用脉冲激光对其SET特征进行试验评估，得到宽度为35μs、幅度为7.2V的最坏情况SET参数.利用Hspice仿真验证LM124的SET特性与规律，针对最坏情况SET，仿真设计了外围滤波电路，研究不同减缓电路参数对SET脉冲的抑制效果，确定出最优电路参数.再次利用脉冲激光试验检验滤波电路对最坏情况SET的减缓效果，结果表明采用最优参数设计的滤波电路对最坏情况SET有较好的抑制作用，能够满足通常的应用电路需求.
- 单粒子瞬态脉冲效应 /
- 脉冲激光 /
- 试验评估 /
- 减缓电路
Abstract: Single Event Transients (SET) of linear device have the characteristics of transience and propagation, which cause great difficulties to fault location and mitigation design for on-orbit electronic systems and devices, and are significant threat to the reliability of spacecraft. To mitigate SET for linear devices, comprehensive experimental assessment on the SET is required, and parameters of the SET in the worst case especially need to be determined. Then specific filtering circuit can be designed according to the worst case parameters of SET and the application circuits. In this paper, SET assessment and mitigation on operational amplifier LM124 which is typically used in spacecraft are investigated. Firstly, SET characteristics of the device are evaluated by pulse laser facility, and the worst SET with duration of 35μs and amplitude of 7.2V are observed. Then, by using Hspice simulation, the SET of LM124 are compared and verified with experimental assessment, and mitigation on the worst SET using different parameters of filter circuits are investigated. Finally, the mitigation on worst SET with the optimized filtering circuit is investigated and verified again using the pulsed laser facility. The work of this paper is useful to investigate and mitigate SET of other linear devices applied in space.
- SET effect /
- Pulsed laser /
- Experimental assessment /
- Mitigation circuit

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参考文献(13)

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