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所在平台: Udemy |
课程主页: https://www.udemy.com/course/operational-amplifiers-linear-integrated-circuits/
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**课程名称:** 运算放大器:线性集成电路 **课程概述:** 本课程将深入探讨 IC741 运算放大器(OP AMP),作为线性集成电路的重要组成部分。课程旨在帮助学习者全面理解运算放大器的原理、特性、配置和广泛应用。 **学习内容:** * **运算放大器的基础:** 什么是 IC741?理想运算放大器的特性。 * **运算放大器配置:** 开环配置。 * **核心概念:** 虚短(Virtual Short)和虚地(Virtual Ground)概念的深入理解。 * **闭环配置:** 反相比例放大器、同相比例放大器。 * **直流特性分析。** * **交流特性分析:** 尤其是压摆率(Slew Rate)。 * **经典应用:** 电压跟随器(Voltage Follower)、缓冲器(Buffer)、反相器(Analog Inverter)、加法器(Summer)、减法器(Subtractor)。 * **对数与反对数放大器、模拟放大器。** * **微分器(Differentiator)、积分器(Integrator)。** * **非线性应用:** 半波整流器(Half Wave Rectifier)。 * **比较器应用:** 开环比较器(Open Loop Comparator)、零交叉检测器(Zero Crossing Detector)。 **学习亮点:** * 课程还将包含运算放大器相关的**竞赛题目讲解**,帮助学习者提升解题能力。 * 通过引入**“网络理论回顾”视频**,为理解运算放大器概念打下坚实基础。 **运算放大器的定义与工作原理:** 运算放大器(OP AMP)是一种电压放大器,通过在输入和输出端连接外部反馈元件(如电阻和电容)来实现特定的功能。这些反馈元件决定了放大器的最终“运算”方式。不同的反馈拓扑结构,无论是电阻、电容还是两者兼有,使得运算放大器能够执行多种操作,因此得名“运算放大器”。 运算放大器本身拥有很大的开环直流增益。但通过引入**负反馈**,可以构建出具有非常精确增益特性的运算放大器电路,其增益仅取决于所采用的反馈网络。 “开环”是指运算放大器周围没有连接任何反馈元件,即反馈回路是断开的。 **教学目标:** 完成本课程后,学习者将能够: * 深刻理解运算放大器的基本工作原理和理想特性。 * 熟练掌握运算放大器的各种基本配置电路。 * 分析和设计基于运算放大器的各类模拟电路。 * 了解并能应用运算放大器的各种经典应用。 * 具备解决与运算放大器相关的工程问题的能力。
The course deals with having a complete understanding on IC741 - Operational Amplifiers, as a partof Linear Integrated Circuits.To understand the concepts, there is a video on 'A review on Network Theory'The following are the contents discussed:1. What is IC741?2. Ideal characteristics of OP AMP3. Open loop configuration of OP AMP4. The concept of virtual short and virtual ground5. Closed loop configuration - Inverting Amplifier, Non Inverting Amplifier6. DC Characteristics7. AC Characteristics - Slew Rate8. Applications - Voltage Follower, Bufer,Analog Inverter, Summer, Subtractor9. Log and Antilog Amplifier, Analog Amplifier10. Differentiator, Integrator11. Non Linear Applications - Half Wave Rectifier12. Open Loop Comparator13. Zero Crossing DetectorProblems on OP AMPs from competitive examinations will also be solved. An operational amplifier, or op-amp for short, is a voltage amplifier with external feedback components such as resistors and capacitors connected between its output and input terminals. These feedback components determine the amplifier's final function or "operation," and the different feedback topologies, whether resistive, capacitive, or both, allow the amplifier to execute a wide range of operations, earning it the name "Operational Amplifier."Operational amplifiers have a large open loop DC gain on their own, but by using Negative Feedback, we can create an operational amplifier circuit with a very accurate gain characteristic that is only dependent on the feedback employed. The term "open loop" refers to the absence of any feedback components around the amplifier, implying that the feedback line or loop is open.