基于Simulink的脉冲发生器仿真及脉宽调整

A Simulation of the Pulse Generator Based on Simulink and Adjusting the Pulse Width

根据脉冲发生器电路原理图,使用Simulink软件包构建了脉冲发生器电路模型,并分析了电容反向充电回路的时间常数对脉冲宽度的影响。仿真结果验证了时间常数越小则脉冲宽度越窄,时间常数越大则脉冲宽度越宽。

A model of the pulse generator is constructed by using the Simulink package in term of the circuit diagram of the pulse generator. The effect of the time constant of capacitor reverse charging circuit on pulse width is also analyzed. Results of simulation demonstrate that, the smaller the time constant, the narrower the pulse width; the larger the time constant, the wider the pulse width.