一种高可靠点火执行级电路的设计

Design of high-reliability ignition execution circuit

火工品点火技术是一种对安全性和可靠性要求极高的技术,一般是一个系统中最关键的执行环节,如果出现问题,轻则导致系统试验失败,重则导致人员伤亡。为了可靠的实现火工品的点火,提出了一种高可靠点火执行级电路的设计方案,通过对点火准备指令、点火指令等信号的可靠接收和滤波,基于点火准备指令的两级延时保护,点火的执行部分多重安全保护等方法,安全准确地实现了对火工品的点火控制,并在某型空空导弹点火装置中得到应用,取得了良好的效果。

The ignition technology of initiators is the one that requires high safety and reliability. It is a critical excutive link for systems. If problem occurs, it will lead to failure of system test, even the personnel injury and death. In order to realize the ignition of initiating devices reliably, a design scheme of high-reliability ignition execution circuit is proposed. By reliably receiving and filtering of instruction signals, like ignition preparation, ignition and so on, the circuit realizes precise ignition control of initiating devices based on a two-stage delay protection of the ignition preparation instruction and multi-pro- tection methods of ignition execution section. It has been applied to some air-to-air missile ignition devices, and achieved good results.