电子通信专业毕业设计信号发生器的设计与制作.doc

信号发生器的设计与制作 【摘 要】信号发生器广泛应用于电子工程、通信工程、自动控制、遥测控制、测量仪器、仪表和计算机等技术领域。采用集成运放和分立元件相结合的方式，利用迟滞比较器电路产生方波信号，以及充分利用差分电路进行电路转换，从而设计出一个能变换出三角波、正弦波、方波的简易信号发生器。通过对电路分析，确定了元器件的参数，并利用Multisim软件仿真电路的理想输出结果，克服了设计低频信号发生器电路方面存在的技术难题，使得设计的低频信号发生器结构简单，实现方便。该设计可产生低于100Hz的各波形输出，并已应用于实验操作。 【关键词】信号发生器；方波信号；电路仿真；OP07;LM324 Design and production of signal generator Author: Li nana Tutor: Jia jie 【Abstract】Signal generator is widely used in electronic engineering, communications engineering, automatic control, remote control, measuring instruments, meters and computer technology. Integrated operational amplifier and using a combination of discrete components, using hysteresis comparator circuit produces a square wave signal, and the full use of differential circuit circuit switching, which can change the design of a triangular wave, sine wave, square wave signal generator simple . Through the circuit analysis to determine the parameters of the components and use the ideal of Multisim circuit simulation software output, designed to overcome the low frequency signal generator circuit technical problems exist, making the design of the low frequency signal generator structure is simple and easy to achieve. The design can produce less than 100 Hz, the waveform output, and has been used in experimental operations. 【The key words】pingers ； signal for the signals ； circuit simulation ； op07; lm324 目 录 第1章 绪 论 .............................................1.1 绪论......................................................... 1.2 课题背景...............................................1.3 设计任务及要求......................................... 第2章 信号发生器方案选择及原理框图 2.1 原理框图................................................... 2.2 信号发生器方案选择........................................... 第3章 各部分电路设计及总电路图 3.1 方波发生电路的工作原理.............................................. 3.2 方波---三角波转换电路的工作原理..........................