The Analog Circuit Design Series set reduces the concepts of analog electronics to their simplest, most obvious form which can easily be applied (even quantitatively) with minimal effort. The emphasis of the set is to help you intuitively learn through inspection how circuits work and apply the same techniques to circuits of the same class.

This first volume,Designing Amplifier Circuits, presents the basic principles of transistor circuit analysis, basic per-stage building blocks, and feedback. The content is restricted to quasi-static (low-frequency) considerations, to emphasize basic topological principles. The reader will be able to analyze and design multi-stage amplifiers with feedback, including calculation and specification of gain, input and output resistances, including the effects of transistor output resistance.

Of note is the presentation of feedback analysis, a subject rarely covered by other books, with insights and from angles that will reduce to analysis by inspection for readers. Some circuit transformations outlined within are especially helpful in reducing circuits to simpler forms for analysis. They are usefully applied in considering transistor circuits for which collector-emitter (or drain-source) resistance is not negligible, another often omitted topic which this book details.

Book contents

Chapter 1 Electronic Design

Electronic Design
Product Development
Design-Driven Analysis
Nonlinear Circuit Analysis

Chapter 2 Amplifier Circuits

Bipolar Junction Transistor T Model
The ß Transform
Two-Port Networks
Amplifier Configurations
The Transresistance Method
Input and Output Resistances
The Cascade Amplifier
BJT Output Resistance
The Cascode Amplifier
The Effect of Base-Emitter Shunt Resistance
The Darlington Amplifier
The Differential (Emitter-Coupled) Amplifier
Current Mirrors
Matched Transistor Buffers and Complementary Combinations

Chapter 3 Amplifier Concepts

The Reduction Theorem
µ Transform of BJT and FET T Models
Common-Gate Amplifier with ro
Common-Source Amplifier with ro
Common-Drain Amplifier with ro
FET Cascode Amplifier with ro
Common-Base Amplifier with ro
CC and CE Amplifiers with ro
Loaded Dividers, Source Shifting and the Substitution Theorem

Chapter 4 Feedback Amplifiers

Feedback Circuits Block Diagram
Port Resistances with Dependent Sources
General Feedback Circuit
Input Network Summing
Choosing xE, xf, and the Input Network Topology
Two-Port Equivalent Circuits
Two-Port Loading Theorem
Feedback Analysis Procedure
Noninverting Op-Amp
Inverting Op-Amp
Inverting BJT Amplifier Examples
Noninverting Feedback Amplifier Examples
A Noninverting Feedback Amplifier with Output Block
FET Buffer Amplifier
Feedback Effects on Input and Output Resistance
Miller’s Theorem
Noise Rejection by Feedback
Reduction of Nonlinearity with Feedback

Chapter 5 Multiple-Path Feedback Amplifiers

Multipath Feedback Circuits
Common-Base Amplifier Feedback Analysis
Common-Emitter Amplifier Feedback Analysis
Common-Collector Amplifier Feedback Analysis
Inverting Op-Amp with Output Resistance
Feedback Analysis of the Shunt-Feedback Amplifier
Shunt-Feedback Amplifier Substitution Theorem Analysis
Idealized Shunt-Feedback Amplifier
Cascode and Differential Shunt-Feedback Amplifiers
Blackman’s Resistance Formula
The Asymptotic Gain Method
Emitter-Coupled Feedback Amplifier
Emitter-Coupled Feedback Amplifier Example
Audiotape Playback Amplifier Examples


About the author

Dennis Feucht is the owner of Innovatia Laboratories (Cayo, Belize), a firm that specializes in motion control, power electronics, microcomputer-based instrumentation, electromechanics and automation. Feucht is an electronics engineer with extensive experience doing leading-edge electronics design of high-performance test instruments, robotics, and motion control systems for over 30 years. He is editor of the American Scientific Affiliation Newsletter.

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