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所在平台: Udemy |
课程主页: https://www.udemy.com/course/awsome-electronics-course-electronics-from-soup-to-nuts/
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课程名称:精彩电子课程——电子学从基础到深入 课程概述: 本课程首先简要回顾了电子学的发展历史,接着向初学者介绍电流、电压和电阻的基本概念。同时,课程对欧姆定律进行了概述,提供了多个例子进行说明,并给学生留有解决问题的机会,并附上答案供其确认。 接下来,课程涵盖了交流(AC)和直流(DC)电压及其代表的基本概念,包括电流方向、安培量的定义以及电阻的基本特性。此外,还讲解了电阻的色码系统和公差系统,这些是电子电路中被动元件的重要特征。此部分是进入电子学领域的第一步。 在数学部分,课程涉及与十进制系统相关的多种数学主题,教授加减乘除的基础知识,包括正负数、分数、十进制分数及代数基础,并在最后引入三角学。所有概念都有问题进行巩固学习。 电路分析部分讲述了如何在串联、并联和串并联电路中计算电压、电流和电阻。课程提供逐步指导,使学生能掌握电压降、电流分配及电子电路中的功耗等知识。 高级电路分析涵盖基尔霍夫电路定律和网络定理,包括叠加原理、特维宁定理和诺顿转换。每个电路分析技术都提供详细说明,伴随问题以巩固学习体验。 电容基础部分讲述库仑的定义以及如何确定电容器的电荷如何在交流和直流电路中反应。解释RC时间常数及波形计算,讲解如何在串联和并联电路上添加电容器。 电感基础部分讲述自感原理和感抗,展示纯电感电路中的电流和电压如何受影响,并讨论交流源电压的频率对相角的影响。同时,课程解释在交流电压电路中,电容抗应(XC)、电感抗(XL)和电阻(R)的行为。 下一部分介绍谐振及谐振效应,讲解串联谐振电路、谐振频率计算及谐振时XC与XL的特性。 RLC部分涵盖低通与高通滤波器的截止频率及相位角。 半导体基础部分解释半导体的基本知识、导体中的价电子及半导体的掺杂过程。讲述N型与P型材料的区别及多数载流子和少数载流子的概念。 在二极管部分,课程介绍二极管的正向和反向电流特性及其特征曲线,电流通过二极管的方式,以及如何使用万用表测试二极管。讲解半波整流及全波整流的基本概念,并介绍变压器。 在晶体管部分,课程介绍PNP和NPN两种类型的结型晶体管,描述其反向和正向偏置,如何测试晶体管,探讨负载线以及常见发射极、电流集电极和共基极电路的工作原理。 完成本课程后,学生将具备扎实的电子学基础,理解电路分析和元件特性。
This course starts off with a Brief History of Electronics. It then introduces the first time student to Current Flow, Voltage and Resistance. The course also offers an introduction of Ohm's Law with several examples explained and the student are presented with Problems that they can solve, with the answers that follow.The next section covers the Basics In AC and DC Voltage. AC and DC Current and Current Direction. Defines the term quantity Ampere also Covers Basic characteristics of Resistance and Explains the Color Code System and the Tolerance System for Fixed Resistors and other Passive Components that provide Resistance in an Electronic Circuit. This is first step for someone who is entering the field of electronics.The Math section will cover many different Math Topics Related to the Decimal Numbering System. Al explains the mechanics involved in Addition, Subtraction, Multiplication and Division with both positive and negative numbers' Al explains fractions and decimal fractions along with Algebra basics. Section ends with an introduction to Trigonometry. All Concepts are backup with Problems so student can reinforce the material that was just explained.The Next Section (Circuit Analysis) takes the Student thru Calculating Voltage, Current and Resistance on a Series, Parallel and Series Parallel Circuits! Al gives the student a step by step instruction on how to solve these circuit properties. After finishing this course the student should have a very good understanding of Voltage drops, Current Division and Power consumption in a Electronic Circuit.Advance Circuit Analysis Covers Kirchhoff's Circuit Laws and Network Theorems , Super Position, Thevenin Theorem and Norton Conversions. Al Gives a detailed explanation on each of these Circuit Analysis Techniques. This course is Broken into two Sections. Section one is Kirchhoff's Circuit Laws and Section two, network theorems and how they are used to analysis a circuit. Each section is accompanied with problems that the student can perform to reinforce their learning experience.Capacitance Basic Section, Al Explains what is a Coulomb, and how to determine the charge on a capacitor. How Capacitance reacts in a AC Circuit (Capacitance Reactance) and DC Circuits. What is an RC Time Constant's? How waveforms are calculated in a RC Circuit. How capacitors add in series and Parallel Circuits.Inductance Basic Section, Al Explains the principle of Inductance and Inductive Reactance. The Circuit Examples will show how Current and Voltage are affected in a Pure Inductive Circuit and how these properties change as Resistance is added to the mix, in addition to this frequency of the Ac source voltage will be discussed and will show how the phase angle between the Voltage and current will be affected.Al Explains how Capacitive Reactance (XC) and Inductive Reactance(XL) and Resistance (R) behaves in Alternating Voltage Circuits. Series R L C Circuits & Parallel R L C Circuits are Explained. AL Explains how to find total Impedance ( Z) of the circuit and how the phase angle are calculated with both Current and Voltage. The student should have a understanding of ohms law and basic math skills to take full advantage of this.The next section Resonance & Resonance Effect. Al Explains a Series Resonant circuit, calculation of the resonant frequency. The characteristics of XC and XL at Resonance. What is tuning. Al Explains the Resonance Frequency Equation for the correct solution. Al also Explains Calculations of Current in a Series Resonant Circuit. Voltage across Resonant Components.RLC Section, Al Explains R C Low Pass & R L Low filters for Cut off frequency (fc) & phase Angle. Al Explains R C High pass & R L High pass filters for Cut off frequency (fc) & Phase Angle.Semiconductor Basics Section. Al explains semiconductor Basics, Valance Electrons in Conductors. The difference between semiconductors & conductors. Describes the doping process in, semiconductor material. What is N & P type Material ? Majority & Minority Carries Explained.Diode Curves and Characteristics, of forward and reverse Current flow, by using the Characteristic Diode Curve. Physical Diode Packaging Explained. Electron flow thru Diodes Explained. Schematic Symbol of Diode, Cathode and Anode placement explained. Placement of Physical Diode Explained. How to test a diode, with an ohm meter. A simple diode application Explained. Half Wave rectification, how to calculate peak voltage and the Average DC voltage of a half wave rectification circuit. Basic capacitor filter action is also explained. Full wave rectification, full wave bridge rectification explained and the introduction of the transformers. The Average DC Value of a full wave Rectifier explained. Introduction the two types of junction transistors PNP and NPN. Details reverse and forward bias on the junction transistor(s). Introduction of the three elements of the transistor. Al Explains the Schematic Symbols of the transistor (NPN & PNP). Physical packaging of the transistors shown and explained. How to test a transistor with an ohm meter. Introduction alpha and Beta properties of the transistors along with Ie = Ib + Ic. Explanation of alpha and Beta properties of the transistors along with Ie = Ib + Ic. Introduces Load -line (s)with a common emitter circuit. Explanation of both DC and AC transistor parameter's using the load line. How to find RL using the load line. Phase shift in a common emitter transistor. Explanation of the common Collector Circuit ( also called the emitter follower) Circuit action. Common Base configuration circuit action explained. Summary of the three transistor Configurations, Common Emitter, Common Collector and Common Base.