降额
热电冷却
温度控制
CMOS芯片
炸薯条
技术
热的
电子工程
散热片
计算机科学
电气工程
机械工程
工程类
电压
热电效应
物理
电离层
天文
气象学
热力学
作者
Jicai Rui,Qiaoyue Dong,Yujiao Liu,Wen Gao,Mingqian Shi
摘要
The structure of a space electric cabinet based on a commercial CMOS chip is presented. Analysis is conducted according to the temperature specifications and the environmental constraints, which indicates the partitional thermal control method has higher energy efficiency than conventional TEC cooling. A flexible graphite thermal cable is used to build an independent cooling path for the focal plane component. The camera hood is utilized to cool down the peripheral circuit. Copper sinks are designed for high power electronic components. The thermal control design is verified by finite element simulation analysis and thermal balance test. The experimental results show that the partitional thermal control measures are effective and feasible, which can ensure the -30°C operating temperature of CMOS chip and the derating requirements of components with high power consumption.
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