针对激光近炸引信探测系统对激光脉冲前沿速率、激光脉宽和功率的需求,通过RLC放电回路理论分析,采用双晶体三极管互补驱动高速金属氧化物半导体场效应晶体管作为高速开关,应用微处理器C8051FXXX产生脉冲触发信号,设计出激光近炸引信高速窄脉冲大功率驱动电源.通过PSPICE软件分析与实验验证,结果表明该电源脉冲前沿上升时间约为4 ns,脉宽10 ns左右,激光峰值电流可以达50 A.该研究有效提高了系统探测距离与抗云雾烟尘干扰的能力.

In order to satisfy the needs of the rate of fuze pulse front edge, laser pulse width and power in the detection system of laser proximity fuze, by the theory analysis of RLC discharge circuit, double transistors driving high-speed metal-oxide semiconductor field-effect transistor was used as the high-speed switching, and Microprocessor C8051FXXX was adopted to produce pulse trigger signal, a drive power of laser proximity fuze with high-power high-speed and narrow pulse was designed. Through PSPICE software analysis and experimental verification, the drive power can realize that pulse front edge is about 4 ns, pulse width is about 10 ns, and peak current of the laser can reach 50 A. The research effectively improved the ability of system detection range and anti-cloud and dust interference.