1、 课程名称： 电子技术设计与工艺实习 院 部： 电气与信息工程学院 专业班级： 自动化10102班 学生姓名： 指导教师： 完成时间： 2012.06.11 报告成绩： 评阅意见： 评阅老师: 日期： 仪用放大电路的设计 I 摘 要 放大器是电子系统的重要组成部分，了解和掌握放大器对于学习和应用电子系统有很 大的帮助。信号检测中的放大电路有很多种类型，实际系统中常采用的有测量放大器和隔 离放大器。测量放大器主要是实现对微信号的测量，主要通过运用集成运放组成测量放大 电路实现对微弱电压信号的放大。 本次课程设计一仪用放大器及其所用的稳压电源。用集成运放 OP07 设计的仪用放大 电路的放大倍数要
2、在一定范围内可调，具有高共模抑制比，通频带在 010Hz之间，能克 服温漂、零漂的影响，并且能够实现由单相 220V 交流电压供给电路+12V 电源和-12V 电 源。借助 Multisim2001 和 Proteus 仿真软件对电路的最大输出电压、放大倍数、共模抑制 能力以及通频带进行分析。通过仿真分析验证了设计的正确性，达到了设计的预期目的。 关键词关键词：仪用放大器；集成运放 OP07；通频带；高共模抑制能力；稳压电源 仪用放大电路的设计 II Abstract The amplifier is an electronic system important constituent, un
3、derstand and master the amplifier to the study and application of electronic system has a great help.Signal detection in the amplifying circuit has many types, the actual system often used in measuring amplifier and isolation amplifier.Measuring amplifier is mainly realized on micro signal measureme
4、nt, mainly through the use of integrated operational amplifier composition measurement amplification circuit for weak voltage signal amplification. This course is designed to an instrument amplifier and the voltage stabilizing power supply.Integrated operational amplifier OP07 design instrument ampl
5、ification circuit to the magnification can be adjusted in a certain range, has high common-mode rejection ratio, pass band between 0 10Hz, can overcome the temperature drift, zero drift effects, and can achieve by 220V single-phase AC voltage supply circuit +12V and the -12V power supply.With the he
6、lp of Multisim2001 and Proteus simulation software to the maximum output voltage of the circuit, amplification, common-mode rejection ability as well as the pass band analysis.Through analysis of simulation verifies the correctness of the design, to achieve the desired objective of the design. Key words: instrumentation amplifier; integrated operational amplifier OP07; band; high common-mode rejection; regulated power supply 仪用放大电路的设计 1 目 录 摘
