脉冲式激光引信用连续可调LD驱动电路的研究

Study on the PWM driver circuit of LD for laser fuze

摘要: 为了满足引信用脉冲式半导体激光器驱动电路的脉冲宽度可调、频率可调、功率可调的需要,根据LD驱动电路的工作原理,建立LD驱动电路的一般模型,并进行了仿真分析。采用电子多频振荡器来提供驱动信号,用双MOS驱动器来驱动半导体激光器,通过大量的实验、仿真、分析、比较,设计出了方便可调的大功率LD的驱动电路。结果表明,该驱动电路完全能满足激光近炸引信对脉宽、频率和功率的需要。

Abstract: In order to meet the needs of variable pulse width,frequency and power for laser fuze,a model of the LD driver circuit is built up based on its principle.By using monostable multivibrators to provide the trigger signal,and using the double MOS driver to drive the LD,a variable high power LD driver circuit,which can meet the requirement of pulse width,frequency and power of laser fuze,is designed through a lot of experiments,emulation and comparison.