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模拟电子技术基础学习笔记（六）

 收录于 学习 计算机
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摘要
模拟电子技术基础学习笔记（六）。
崔叉叉注
如果要100%理解并掌握这门课的内容，尤其是电路的分析与计算部分，需要基本电路理论这门课作为前置知识。否则不需要。

7 信号的运算与处理

7.1 运算电路分析

7.1.1 比例运算

  1. 反相比例

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%8F%8D%E7%9B%B8%E6%AF%94%E4%BE%8B%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%8F%8D%E7%9B%B8%E6%AF%94%E4%BE%8B1.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%8F%8D%E7%9B%B8%E6%AF%94%E4%BE%8B2.png

  2. T型网反相比例

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/T%E5%9E%8B%E7%BD%91%E5%8F%8D%E7%9B%B8%E6%AF%94%E4%BE%8B%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/T%E5%9E%8B%E7%BD%91%E5%8F%8D%E7%9B%B8%E6%AF%94%E4%BE%8B.png

  3. 同相比例

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%90%8C%E7%9B%B8%E6%AF%94%E4%BE%8B%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%90%8C%E7%9B%B8%E6%AF%94%E4%BE%8B.png

  4. 举例

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E7%94%B5%E5%8E%8B%E8%B7%9F%E9%9A%8F%E5%99%A8.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E4%B8%BE%E4%BE%8B.png

7.1.2 加减运算

  1. 求和

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%8F%8D%E7%9B%B8%E6%B1%82%E5%92%8C%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E6%B1%82%E5%92%8C.png

  2. 加减

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%90%8C%E7%9B%B8%E6%B1%82%E5%92%8C%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%8A%A0%E5%87%8F%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png

7.1.3 微积分运算

  1. 积分

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E7%A7%AF%E5%88%86%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E7%A7%AF%E5%88%86%E7%94%B5%E8%B7%AF%E6%8E%A8%E5%AF%BC1.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E7%A7%AF%E5%88%86%E7%94%B5%E8%B7%AF%E6%8E%A8%E5%AF%BC2.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E7%A7%AF%E5%88%86%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E6%B3%A2%E5%BD%A2.png

  2. 微分

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E5%BE%AE%E5%88%86%E8%AE%A1%E7%AE%97%E7%94%B5%E8%B7%AF.png

  3. 逆函数

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E9%80%86%E5%87%BD%E6%95%B0%E5%9E%8B%E5%BE%AE%E5%88%86%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E9%80%86%E5%87%BD%E6%95%B0%E6%8E%A8%E5%AF%BC.png

7.1.4 对数指数乘法运算

  1. 对数运算

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E4%BA%8C%E6%9E%81%E7%AE%A1%E5%AF%B9%E6%95%B0%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E4%B8%89%E6%9E%81%E7%AE%A1%E5%AF%B9%E6%95%B0%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E9%9B%86%E6%88%90%E5%AF%B9%E6%95%B0%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png

  2. 指数运算

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E6%8C%87%E6%95%B0%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E9%9B%86%E6%88%90%E6%8C%87%E6%95%B0%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png

  3. 指数与对数推导

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E6%8C%87%E6%95%B0%E4%B8%8E%E5%AF%B9%E6%95%B0%E6%8E%A8%E5%AF%BC.png

  4. 乘法运算

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E4%B9%98%E6%B3%95%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.1%E8%BF%90%E7%AE%97%E7%94%B5%E8%B7%AF%E5%88%86%E6%9E%90/%E4%B9%98%E6%B3%95%E7%94%B5%E8%B7%AF.png

7.2 模拟乘法器

7.2.1 简介

  1. 电路与符号：U0 = K * uX * uY

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E4%B9%98%E6%B3%95%E5%99%A8.png

  2. 理想乘法器

    1. 输入电阻（ri）趋向于无穷大
    2. 输出电阻（ro）趋向于0。
    3. K值不变。

  3. 工作象限

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E5%B7%A5%E4%BD%9C%E8%B1%A1%E9%99%90.png
    1. 单象限乘法器
    2. 两象限乘法器
    3. 四象限乘法器

7.2.2 应用

  1. 乘方运算

    1. 平方电路

      /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E5%B9%B3%E6%96%B9%E7%94%B5%E8%B7%AF.png

    2. 三次方

      /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E4%B8%89%E6%AC%A1%E6%96%B9%E7%94%B5%E8%B7%AF.png

    3. N次方

  2. 除法运算

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E9%99%A4%E6%B3%95%E5%99%A8.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E9%99%A4%E6%B3%95%E6%8E%A8%E5%AF%BC.png

  3. 开方

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E9%98%B2%E6%AD%A2%E9%97%AD%E9%94%81%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%E7%94%B5%E8%B7%AF.png
    防止闭锁的平方根电路
    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E7%AB%8B%E6%96%B9%E6%A0%B9%E7%94%B5%E8%B7%AF.png
    立方根电路

7.2.3 仪表用放大器

  1. 特点：

    1. 传感器内阻不稳定。
    2. 信号弱。
    3. 共模信号大。

  2. 基本电路

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E4%BB%AA%E8%A1%A8%E7%94%A8%E6%94%BE%E5%A4%A7%E5%99%A8.png /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E4%BB%AA%E8%A1%A8%E7%94%A8%E6%94%BE%E5%A4%A7%E5%99%A8%E6%8E%A8%E5%AF%BC.png

  3. 集成仪表用放大器

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E9%9B%86%E6%88%90%E4%BB%AA%E8%A1%A8%E7%94%A8%E6%94%BE%E5%A4%A7%E5%99%A8.png

  4. 数字式温度计电路

    /images/Fundamentals_of_Analog_Electronic_Technology/7%E4%BF%A1%E5%8F%B7%E7%9A%84%E8%BF%90%E7%AE%97%E4%B8%8E%E5%A4%84%E7%90%86/7.2%E6%A8%A1%E6%8B%9F%E4%B9%98%E6%B3%95%E5%99%A8/%E6%95%B0%E5%AD%97%E5%BC%8F%E6%B8%A9%E5%BA%A6%E8%AE%A1%E7%94%B5%E8%B7%AF.png
更新于 2022/01/07
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