基于TL084 的三波形同步信号源设计与 Multisim 仿真验证
Design and Multisim Simulation Verification of Three-waveform Synchronous Signal Source Based on TL084
单体立 1赵书源 1于洪仕1
作者信息
- 1. 辽宁工程技术大学电子与信息工程学院，辽宁葫芦岛 125105
- 折叠
摘要
针对传统分立元件信号源波形失真度高、多波形同步性差、调试复杂的问题，设计了一种基于单片 TL084 四运放的正弦波 - 方波 - 三角波同步信号源。电路采用带二极管动态稳幅的 RC 文氏桥结构产生低失真正弦波，通过高速过零比较器实现正弦波到方波的转换，再经有源积分电路生成线性三角波。利用 Multisim 14.0 平台完成电路搭建与仿真测试，结果表明：电路可稳定输出频率约 10kHz 的三种同步波形，正弦波峰峰值达 6.93V，总谐波失真低于 1.2%；方波边沿陡峭，上升时间小于 2μs；三角波线性度优于 95%。该电路仅使用单片运放芯片，结构紧凑、成本低廉，可直接应用于电子实验教学与便携式测试设备中。
Abstract
Aiming at the problems of high waveform distortion, poor multi-waveform synchronization and complex debugging of traditional discrete component signal sources, a sine-square-triangular synchronous signal source based on a single TL084 quad operational amplifier is designed. The circuit adopts RC Wien bridge structure with diode dynamic amplitude stabilization to generate low-distortion sine wave, realizes the conversion from sine wave to square wave through high-speed zero-crossing comparator, and then generates linear triangular wave through active integration circuit. The circuit construction and simulation test are completed by using Multisim 14.0 platform. The results show that the circuit can stably output three synchronous waveforms with frequency of about 10kHz, the peak-to-peak value of sine wave reaches 6.93V, and the total harmonic distortion is less than 1.2%; the square wave edge is steep with rise time less than 2μs; the linearity of triangular wave is better than 95%. The circuit only uses a single operational amplifier chip, with compact structure and low cost, and can be directly applied to electronic experiment teaching and portable test equipment.关键词
电子技术/TL084 运算放大器/文氏桥振荡/波形变换/同步信号源/Multisim 仿真Key words
electronic technology/TL084 operational amplifier/Wien bridge oscillation/waveform conversion/synchronous signal source/Multisim simulation引用本文复制引用
单体立,赵书源,于洪仕.基于TL084 的三波形同步信号源设计与 Multisim 仿真验证[EB/OL].(2026-06-23)[2026-06-25].http://www.paper.edu.cn/releasepaper/content/202606-63.学科分类
电子技术概论/电子元件、电子组件/电子电路/无线电设备、电信设备/电子技术应用
