机载计算机供电时序的设计与实现  

Design and Implementation of Power Supply Sequence for Airborne Computer

作　　者：高栋[1] 韩敏[1] 冯非[1] Gao Dong;Han Min;Feng Fei(Aeronautics Computing Technique Research Institute,Xi’an Shaanxi 710065,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710065

出　　处：《山西电子技术》2018年第3期54-56,64,共4页Shanxi Electronic Technology

摘　　要：机载计算机产品内部设置有多路电源,上下电过程中电源输出易受到输入端电压波动振荡的影响,导致计算机工作不可靠。另外,使用多路电源的产品还存在加电时序的需求。本文分别梳理了一次电源与二次电源的供电时序和二次电源间的供电时序管理策略,设计了相对应的控制电路。经试验验证,该设计可以有效解决上下电过程中的电源输出波动问题,极大地提高了机载计算机产品的可靠性和稳定性。There are multiple power supplies in airborne computer.The output voltage of power supplies can easily be affected by the fluctuation of input source during power on and off.In addition,there is a requirement of power supply sequence for products using multiple power sources.This paper clarifies the sequence management policy between primary power supply and secondary power supply and that with multiple secondary power supplies respectively,and designs the corresponding control circuit.It is proved by experiments that this design can effectively solve the problem of output voltage fluctuation in the process of power on and off,and greatly improve the reliability and stability of airborne computer products.

关 键 词：供电时序 机载计算机 上下电 

分 类 号：TP303.3[自动化与计算机技术—计算机系统结构]