Electronic Circuits - Part3: Bipolar Junction Transistors

Analysis and Design of BJT circuits (including Multisim simulations, and practical experiments)

What you'll learn

BJT structure, transistor currents, and minority carrier distribution.

Common Emitter (CE), Common Base (CB), and Emitter Follower (CC) configurations.

Characteristics and modeling of bipolar junction transistor (LARGE SIGNAL and small signal modeling).

Different operating regions of a BJT (cutoff, saturation, and forward active region).

BJT biasing and Stability factors.

DC and ac analysis of BJT circuits.

Design for maximum symmetrical swing and best stability.

Bias compensation techniques.

Different amplifier configurations.

Miller theorem, bootstrap technique, and Darlington pair.

BJT current sources.

Multistage amplifiers.

Analysis and design of practical BJT circuits.

Circuit analysis with Multisim (create you own BJT model with SPICE netlist)

Requirements

You should be familiar with linear circuit analysis techniques such as KVL, KCL, mesh, and nodal analysis. (These methods are reviewed in the second part of the course).

You should be familiar with basic components such as resistors, capacitors, inductors, and diodes.

You should have a basic understanding of calculus and linear algebra.

It is recommended that you have the Multisim software.

NI myDAQ (Suggested. It works well with Multisim. You may also use your own instruments).

Description

In this part of the “Electronic Circuits” course, you will get familiar with one of the most widely used nonlinear components which is the Transistor. You will get familiar with the characteristics and applications of a bipolar junction transistor (BJT). The bipolar junction transistor enables you to amplify current and voltages, when used in conjunction with other electronic components like resistors and capacitors. It can also be used as a switch to turn various components of your electronic circuits on and off. After finishing this course you will understand two crucial transistor functions—amplification and switching—that are essential to the creation of electronic circuits.For this purpose, I will start with the physical structure of the BJT. After you get familiar with transistor currents and carrier distribution inside the transistor, you will learn how to model the BJT in cutoff, saturation, and forward active regions (all these models are derived from the Ebers-Moll model). Next, you will learn how to perform DC and ac analysis. You will get familiar with stability factors and maximum output symmetrical swing, and learn how to design a BJT circuit for maximum stability, maximum output symmetrical swing, and maximum gain. In this course, you will learn different types of BJT amplifier configurations (CE, CB, and CC). I will show you some special techniques such as the Miller theorem and Bootstrap technique, and also, special BJT arrangements such as a Darlington pair. You will get familiar with multistage amplifier circuits which are followed by some practical BJT circuit experiments. Finally, I’ll demonstrate how to perform simulations in Multisim. Finally, you will learn how to create SPICE netlists, then create and simulate your own BJT models in Multisim.

Overview

Section 1: Introduction

Lecture 1 01-01 - Course Outline

Lecture 2 01-02 - Course Introduction

Section 2: BJT Structure

Lecture 3 02-01 - BJT Structure01

Lecture 4 02-02 - BJT Structure02

Lecture 5 02-03 - Transistor Currents

Lecture 6 02-04 - Questions (BJT Terminal Currents)

Lecture 7 02-05 - Minority Carrier Distribution

Lecture 8 02-06 - Questions

Section 3: BJT Circuit Configurations

Lecture 9 03-01 - BJT Circuit Configurations

Lecture 10 03-02 - Common Emitter Configuration p1

Lecture 11 03-03 - Common Emitter Configuration p2

Lecture 12 03-04 - Common Emitter Examples

Lecture 13 03-05 - Common Base Configuration

Lecture 14 03-06 - Common Base Examples

Lecture 15 03-07 - Common Collector Configuration

Section 4: Large Signal Modeling and DC Analysis

Lecture 16 04-01 - BJT Large Signal Modeling

Lecture 17 04-02 - Large Signal Model in Forward Active Region

Lecture 18 04-03 - Saturation and Cutoff Regions

Lecture 19 04-04 - Some Points to Remember

Lecture 20 04-05 - DC Analysis P1

Lecture 21 04-06 - DC Analysis P2

Lecture 22 04-07 - DC Analysis P3

Lecture 23 04-08 - DC Analysis P4

Lecture 24 04-09 - DC Analysis P5

Lecture 25 04-10 - DC Analysis P6

Lecture 26 04-11 - DC Analysis P7

Lecture 27 04-12 - DC Analysis P8

Lecture 28 04-13 - DC Analysis P9

Lecture 29 04-14 - DC Analysis P10

Lecture 30 04-15 - Design Examples

Section 5: BJT Biasing, Stability Factors, ac Analysis and Swing

Lecture 31 05-01 - BJT Biasing

Lecture 32 05-02 - Fixed Bias

Lecture 33 05-03 - Emitter Bias

Lecture 34 05-04 - Voltage Divider Bias

Lecture 35 05-05 - Self-Bias Design Example

Lecture 36 05-06 - Integrated Circuit Biasing

Lecture 37 05-07 - Stability Factors

Lecture 38 05-08 - Stability Factor Example

Lecture 39 05-09 - Design Examples

Lecture 40 05-10 - CC and CB Biasing

Lecture 41 05-11 - Bias Compensation

Lecture 42 05-12 - Bias Compensation Examples

Lecture 43 05-13 - BJT Small Signal Modeling 01

Lecture 44 05-14 - BJT Small Signal Modeling 02

Lecture 45 05-15 - BJT Small Signal Modeling 03

Lecture 46 05-16 - ac Analysis Examples

Lecture 47 05-17 - Max Symmetrical Swing 01

Lecture 48 05-18 - Max Symmetrical Swing 02

Lecture 49 05-19 - Swing Examples 01

Lecture 50 05-20 - Swing Examples 02

Lecture 51 05-21 - Design Examples 01

Lecture 52 05-22 - Design Examples 02

Lecture 53 05-23 - Design Considerations

Section 6: Amplifier Configurations

Lecture 54 06-01 - CE Amplifier

Lecture 55 06-02 - CE Examples 01

Lecture 56 06-03 - CE Examples 02

Lecture 57 06-04 - CE Design Examples

Lecture 58 06-05 - CE with Emitter Degeneration p1

Lecture 59 06-06 - CE with Emitter Degeneration p2

Lecture 60 06-07 - Degenerated CE Examples

Lecture 61 06-08 - CB Amplifier

Lecture 62 06-09 - CB Examples

Lecture 63 06-10 - CC Amplifier

Lecture 64 06-11 - CC Examples

Lecture 65 06-12 - CC Design Examples

Lecture 66 06-13 - Amplifiers Comparison

Lecture 67 06-14 - Miller Theorem

Lecture 68 06-15 - Bootstrap Technique

Lecture 69 06-16 - Darlington Pair

Lecture 70 06-17 - Current Sources

Lecture 71 06-18 - ac Analysis p1

Lecture 72 06-19 - ac Analysis p2

Lecture 73 06-20 - ac Analysis p3

Section 7: Multi-Stage Amplifiers

Lecture 74 07-01 - Multistage Amplifiers 01

Lecture 75 07-02 - Multistage Amplifiers 02

Lecture 76 07-03 - Multistage Amplifiers 03

Lecture 77 07-04 - Design Example

Lecture 78 07-05 - Exercise 01

Lecture 79 07-06 - Exercise 02

Section 8: Practical Experiments

Lecture 80 08-01 - Identifying BJT

Lecture 81 08-02 - Using Datasheets

Lecture 82 08-03 - Light Controlled LED

Lecture 83 08-04 - Light Controlled Bulb

Lecture 84 08-05 - Level Detector

Lecture 85 08-06 - Audio Amplifier 01

Lecture 86 08-07 - Audio Amplifier 02

Lecture 87 08-08 - Audio Amplifier 03

Section 9: Circuit Analysis with Multisim

Lecture 88 09-01 - First Simulation in Multisim

Lecture 89 09-02 - Creating SPICE Netlist

Lecture 90 09-03 - BJT DC Model 01

Lecture 91 09-04 - BJT DC Model 02

Lecture 92 09-05 - Large Signal Analysis

Lecture 93 09-06 - BJT ac Model

Lecture 94 09-07 - Voltage Gain

Lecture 95 09-08 - Input_Output Resistances

Lecture 96 09-09 - Multisim BJT Model

Section 10: Conclusion (Bonus Lecture)

Lecture 97 10-01 - The End

This course is intended for students who are already familiar with fundamental electronic circuits (circuits that contain resistors, capacitors, inductors, diodes, and so on) and wish to expand their knowledge to semiconductor devices such as bipolar junction transistor circuits. Anyone taking this course should be familiar with basic circuit analysis theories and techniques such as Ohm's law, Kirchhoffe's voltage and current laws (KVL and KCL), Thevenin's theorem, and so on. This course is also very useful for university students studying Analog Electronics / Electronic Circuits. ***IF YOU HAVE NO EXPERIENCE WITH ELECTRICAL CIRCUITS, THIS COURSE IS NOT FOR YOU.***