基于SIMULINK的555定时器仿真

Simulation of 555 Timer Based on SIMULINK

SIMULINK提供了丰富的典型特性的仿真模块,以555定时器为例,根据它的组成及器件外特性,采用模块化方法,构造三极管的仿真子系统模块,并测试、封装该模块,基于此模块,构造555模块,最后构建多谐振荡仿真模型.很好地解决了闭环、反馈仿真电路中出现的代数环问题,并取得了很好的仿真效果.

SIMULINK offers ample simulation modules with typical characteristics, taking 555 timer as example,according to its constitutions and external characteristics, with modularization method, builds the subsystem module of dynatron, and tests, packs the module, constructs the 555 module based on this module, at last, builds the multivibrator simulation mode. The algebraic loop problem existing in closed loop and feedback simulation circuit is well sdved and good simulation result is achived.