Basic Bipolar Junction Transistor Analysis: The Common-Emitter Circuit (066b2)

As we continue this series on the Bipolar Junction Transistor, we take a close look at the Common-Emitter configuration. In this video I will present the characteristics of this configuration and then walk through its analysis and design. With design values in hand, I will go to the "junk box," pick out some components to put this together on the bench. But, these component values will not match the design values exactly. I will then reverse engineer the circuit to determine what collector-emitter voltage I should expect from my bench experiment. While on the bench, I will swap out transistors to demonstrate the effects of the beta variations from transistor-to-transistor will have on the performance of the circuit. Yes, I realize that I grabbed the wrong resistor for the picture of the base resistor. I really DID use the resistor I spoke of in the video. =============== LINKS ================= LINK to the promised formula sheet: https://drive.google.com/file/d/1o-m82RxaRI64mW5t-C1P_2qaNg8Ae0g-/view?usp=sharing === VIDEO LINKS === Kirchhoff's Voltage Law https://youtu.be/vmYUoKI_p4c Basic Model for the Bipolar Junction Transistor https://youtu.be/ef42KZNsOHk Links to all the videos in this series are below the time markers. ======================================= Time Markers for Your Convenience ---------------------------- 00:05 Introductory Comments 02:48 We begin … 02:55 The Common Emitter Circuit Description 05:27 Our Goals for this Analysis 05:51 The Analysis 05:54 The Collector Circuit 08:52 The Base Circuit 13:04 The Bench Experiment 13:10 Component Gathering 14:02 Reverse Engineering Our Circuit 14:13 Reverse Engineering the Base Circuit 16:39 Reverse Engineering the Collector Circuit 19:30 The Bench Experiment Results 20:15 The Effects of Variations in Beta? 21:18 The Future Solution... 21:56 Final Comments and Toodle-Oots ----------------------------- ==== This video Series ==== Video#1: Introduction to the Junction Diode (How PN junctions work) https://youtu.be/QkWjh6lGlss Video#2: Introduction to the Bipolar Junction Transistor (BJT) https://youtu.be/k0C7Zns4imc Video#3: Basic Bipolar Junction Transistor (BJT) Metrics for the Experimenter https://youtu.be/D-Vi4WJ4Jcc Video #4 Basic Bipolar Junction Transistor Analysis: The Model https://youtu.be/ef42KZNsOHk Video #5 Basic Bipolar Junction Transistor Analysis: The Common-Emitter Circuit https://youtu.be/unkBcz1-nLo Video #6 Basic Bipolar Junction Transistor Analysis: The Common-Collector Circuit https://youtu.be/WZcCYgiGdd8 Video #7 Basic Bipolar Junction Transistor Analysis: The Common-Base Circuit https://youtu.be/zBBuKWwjKq0 Video #8 A Beta Stabilized Common-Emitter BJT Circuit: Analysis & Design https://youtu.be/q-O8A5R1PV8 Video #9 A Beta Stabilized Common-Emitter BJT Circuit: Part Selection, Reverse Engineering and Bench Results https://youtu.be/nP2EWvdlvTQ