基于MOS管的箭载时序控制器设计与实现

针对新一代运载火箭对箭载关键电子产品智能化、小型化、通用化的要求,设计了一种基于MOS管的时序控制器;介绍了硬件及软件设计方案,在硬件电路设计中采用了安全性设计措施;阐述了时序控制器在不同状态下,通过自定义高速串行总线接收飞控计算机指令,控制火工品引爆、电磁阀通断,以及实现电磁阀的节能使用;在测试及飞行过程中,可以进行时序状态的回采测试,通过串行总线反馈给飞控计算机进行健康管理;在回路阻值测试中,能够确保火工品在绝对安全环境下,进行火工品回路的电阻值测试;该时序控制器参加了单机的环境试验、系统综合试验及运载火箭的飞行试验,时序回采参数满足火箭飞行时序的要求,产品工作正常,确保了运载火箭飞行试验的圆满成功。

Design and Implementation of Launch Vehicle Time Serier ControllerBased on MOSFET

Aiming at the requirement of intelligent, miniaturized and universal for the key electronic products of launch vehicle, a time serier controller based on MOSFET is designed. The hardware and software design scheme is introduced, and the security design measures are adopted in the hardware circuit design. This paper describes the time serier controller receiving flight control computer instruction by custom high-speed serial bus in different states, control the explosive initiator detonation, solenoid valve on and off, and achieve energy-saving use of solenoid valve. In the process of testing and flight, the time serier acquisition can be carried out, and the health management can be fed back to the flight control computer by serial bus. In the circuit resistance test, the resistance value of the pyrotechnic circuit can be tested under the absolute safety environment. The timing controller takes part in the environmental test, the system test and the flight test of launch vehicle. The timing collection parameters meet the requirements of the launch vehicle flight timing, and the products work normally, which ensures the successful flight test of launch vehicle.