多功能信号发生器优化设计与仿真

Optimal Design and Simulation of Multi-function Generator

模拟电子课程设计是模拟电子技术理论课的实践环节,对于学生理论知识的巩固,理论联系实际能力的培养具有重要意义。正弦波、方波、三角波等信号波形在电路实验和设备检测中具有十分广泛的用途,因此,在学习中对这类波形产生电路的深入理解和掌握非常有必要。传统方法大多采用实物搭建电路,耗时耗力,还可能因器件质量或更换困难、参数不易调整、观测仪表误差等原因使观察结果出现较大偏差,导致理论与实践难以统一。Multisim是目前电子设计领域主流的仿真软件,为电子类课程教学理念的更新和教学手段的改革提供了条件,将Multsim运用到实践教学环节中,可以打破传统实践教学的硬件和时间上的限制,可以更好地培养学生探究精神,提高主动性学习及创新实践能力。在对信号发生器各种实现方案进行比较的基础上,提出了基于Multisim仿真平台进行多功能信号发生器设计的方案,并对电路原理及参数分析进行详细说明,给出仿真波形和关相参数,仿真表明了方案设计的合理性及可行性。

Analog electronic circuit design is the practice course of the theory course,it has important significance in consolidating students’theory and improving their ability of relating theory to practice.Signal waves such as sine wave,square wave,triangle wave etc.have broad applications in field of circuit experiment and equipment detection,hence,there’s great necessity for in-depth understanding and mastery.Traditional method mostly build circuit in kind,which is time and labour consuming,it is also possible that the observation results can be deviated by the factors such as the quality of the device or the difficulty of replacement,the adjustment of the parameters and the error of the observation instrument and so on,all of which cause the difficulty of unifying theory and practice.Multisim is the mainstream simulation software in field of electronic design,it provide facilities for renewal of teaching idea and reform of teaching method.Applying Multisim can break limit of hardware and time of traditional teaching of Analogy electronic design practice course,and can better cultivate students’inquiry spirit and enhance capacity of active learning and creativity of practice.Based on the basis of comparison of various schemes,A multi-function signal generator is designed and simulated by utilizing Mulitisim and more details of the circuit design and simulation together with some simulation wave and related parameters are given.The simulation shows the rationality and feasibility of the scheme design.