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
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.