文档介绍：模拟电子技术课程论文
授课教师：张晓冬
学院：电气工程学院 专业:电气信息类（轨道牵引电气化） 班级:电气1009班 姓名: 学号:10292002. 10292024
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E-H18订：******@bjtu. edu. cn
基于运算放大器的解抛物线方程电路设计及其应用
党舒平，张朝栋
（北京交通大学 电气工程学院，北京，100044）
摘 要：运算放大器（简称“运放”）是具有很高放大倍数的电路单元。在实际电路屮， 通常结合反馈网络共同组成某种功能模块。木文中将根据运放模型的基木特性，结合乘法 器模型及相关基木器件组成一系列的运算模块，如加法器、减法器、除法器、开方器、、 电压反相器等，再通过对一系列模块的组合，实现对于满足实根存在的任给参数a、b、c 的抛物线解出数值解。并在文末给出了这种电路在实际工程屮的应用价值和前景。
关键词：解方稈电路；运算放大器；抛物线；乘法器
中图分类号：TM113 文献标识码：A
Design for Parabolic Equation Solving Circuit based
on Operational Amplifier and Its Applications
DANG Shu-ping, ZHANG Chao-dong
(School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)
Abstract: An operational amplifier ("op-amp”)is a DC-coupled high-gain electronic voltage amplifier, an op-amp produces an output voltage that is typically hundreds of thousands times larger than the voltage differenee between its input terminals. In realistic circuits, we can combine op-amp with feedback networks to consist some units to achieve special functions. In this paper, I will make a series of units, such as adder, subtracter, divider, square root extractor and voltage inverter etc., reference to the property of op-amp and multiplier, then, with these units, we can build a parabolic equation solving circuit for getting the quantitative solution of any a, b, c given parabolic equation. At last, I present the va