Audio Power Amplifier Design  book cover
6th Edition

Audio Power Amplifier Design

ISBN 9780240526133
Published June 18, 2013 by Routledge
718 Pages 635 B/W Illustrations

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Book Description

This is the essential book reference for amplifier designers. Douglas Self covers all the design issues of noise, distortion, power supply rejection, protection, reliability, and layout. He describes advanced forms of compensation that give dramatically lower distortion.

This edition is much expanded, and packed with new information. It is a must-have for audio power amplifier professionals and audiophiles, amateur constructors and anyone with intellectual curiosity about the struggle towards technical excellence.

New to the sixth edition:

  • The characteristics of the audio signal
  • The principles of distortion
  • Feedback intermodulation distortion
  • Non-switching output stages
  • VAS distortion explained
  • Push-pull VAS configurations
  • Output-inclusive compensation

In addition, five amplifier design examples that illustrate important design principles are examined and measured in detail. These can be straightforwardly adapted to specific requirements.

This new edition also includes a wealth of material on the XD crossover-displacement principle (invented by the author and in use by Cambridge Audio), four-stage amplifier architectures, error correction, current-mirrors, power transistors with internal sensing diodes, amplifier bridging, input-stage-common-mode distortion, amplifier stability, output stages with gain, inrush current suppression, DC servo design, thermal protection, cooling fan control, advanced line input stages, testing and safety, infrared remote control, signal activation, 12V trigger control, the history of solid-state amplifiers and much more. Simple procedures for heatsinking and power supply design are given.

Table of Contents

Chapter 1: Amplifiers and the audio signal

Chapter 2: The basics of distortion

Chapter 3: Negative feedback

Chapter 4: Amplifier architecture, classes, and variations

Chapter 5: General principles and distortion mechanisms

Chapter 6: The input stage

Chapter 7: The Voltage Amplifier Stage

Chapter 8: The Push-pull Voltage Amplifier Stage

Chapter 9: The output stage

Chapter 10: Output stage distortions

Chapter 11: More distortion mechanisms

Chapter 12: Closely Observed Amplifiers: design examples

Chapter 13: Compensation and stability

Chapter 14: Output networks and load effects

Chapter 15: Speed and slew-rate

Chapter 16: Power dissipation in amplifiers

Chapter 17: Class-A power amplifiers

Chapter 18: Class-XD: crossover displacement

Chapter 19: Class-G power amplifiers

Chapter 20: Class-D power amplifiers

Chapter 21: FET output stages

Chapter 22: Thermal compensation and thermal dynamics

Chapter 23: The design of DC servos

Chapter 24: Amplifier and loudspeaker protection

Chapter 25: Layout, grounding, and cooling

Chapter 26: Power supplies and PSRR

Chapter 27: Power amplifier input systems

Chapter 28: Input processing and auxiliary systems

Chapter 29: Testing and safety

Chapter 30: A Brief History of solid-state power amplifiers

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Douglas Self has established straightforward but highly effective amplifier design techniques based on sound engineering principles and experimental data. His rigorous and thoroughly practical approach has established him as a leading authority on audio amplifier design.

Douglas studied engineering at Cambridge University, then psychoacoustics at Sussex University. He has spent many years working at the top level of design in both the professional audio and hifi industries, and has taken out a number of patents in the field of audio technology. He currently acts as a consultant engineer in the field of audio design.