视频处理电路电热耦合的仿真分析  

Electrical-Thermal Coupling Analysis of Video-Processing Circuit

作　　者：苏浩航[1] SU Haohang(Beijing Institute of Space Mechanics ＆ Electricity,Key Laboratory for Optical Remote Sensor Technology of CAST,Beijing 100094,China)

机构地区：[1]北京空间机电研究所,中国空间技术研究院空间光学遥感器技术核心专业实验室,北京100094

出　　处：《空间电子技术》2018年第1期87-90,共4页Space Electronic Technology

摘　　要：随着遥感相机电路的功耗和集成度的提高,导致相机的电学设计和热学设计相互影响,相互制约,准确的热分析技术对PCB设计意义重大。传统的电路设计存在将电路和热路分开设计的缺点,电热耦合分析技术在兼顾电性能和热效应两方面提出了一种新型的分析方法,将焦耳热因素引入热分析中,为设计出准确的、符合实际情况的电学设计方案提供了有效参考。Due to the high power density and low supply voltage of electronic system in the space camera,the electronic design and the thermal design restricted each other,which made the accurate thermal analysis become more important.The Electrical-thermal coupling analysis provided a new method,which taking the electrical-thermal analysis into account simultaneously.The impact of Joule heat is added into thermal analysis which is generated by the current flowing through the conductors.This coupling analysis method which will doing well in both of electrical and thermal fields simultaneously has significant effect on the overall methodology for electronic system design.In view of the proposed conceptual framework,summary a new system development process which takes electrical function and thermal effect into account.

关 键 词：电热耦合分析 焦耳热 电压分布 PCB 

分 类 号：V474[航空宇航科学与技术—飞行器设计]