摘要
本文对电子系统中通用的集成三端稳压器在不同负载条件下做60Coγ电离辐照试验来研究它的性能变化和抗总剂量特征。试验结果发现,稳压器的输出电压、最大负载电流等都为敏感参数,变化较明显;但不同器件间的抗总剂量水平不同。因此,设计工作在辐射环境中的电路时,尽量选用固定输出的三端稳压器,且最大负载电流保留一定设计余量,在辐照后仍能满足电路系统的需求。
Three-terminal regulators used in electronic system were irradiated by 60Coγ-rays to investigate their total-dose effects. The results show that the output voltage and the maximum load current of the regulators were quite sensitive to the total dose. The output voltage of adjustable regulators changed more sharply than that of fixed. For circuits operating under the radiation environment, the fixed voltage regulator is betterthan adjustable regulators. Meanwhile, the maximum load current should be considered to satisfy the need of the circuits system with the reduction after irradiated.
出处
《核技术》
CAS
CSCD
北大核心
2010年第6期465-468,共4页
Nuclear Techniques
关键词
三端稳压器
电离辐射
总剂量效应
Three-terminal regulators, Ionizing radiation, Total dose effect
