Class-D Audio Power Amplifier Design

Robert N. Buono has over 40 years’ experience in analog and power electronic circuit design. He is an expert in the design of Class-D audio power amplifiers and switched mode power supplies. He is presently a Principal Engineer at Crestron Electronics, where he has designed successful Class-D amplifier products for the residential and install markets.

1. Introduction 2. Input Circuits 3. Comparator and PWM Circuits 4. Ramp Generator Circuits 5. Level Shifter Circuits 6. Gate Driver Circuits 7. Bias Supply for Upper Gate Driver 8. Half-Bridge and Full-Bridge Switching Stages 9. L-C Demodulation Filters 10. Sources of Distortion and Noise 11. Class-D Power Stage Losses, A Deep Dive 12. Feedback and Compensation 13. Housekeeping and UVLO Circuits 14. Protection Circuits (Over-Current, Over-Temperature, DC-Offset) 15. EMI Mitigation 16. PCB Layout and Thermal Considerations 17. Power Supply Considerations 18. 70V and 100V Constant-Voltage Amplifiers (High Impedance) 19. Multi-Channel Designs 20. Audio Performance Measurements and Instrumentation 21. Alternate Modulation Schemes for Class-D Amplifiers 22. Digital Applications, Interfaces, and DSP 23. Integrated Circuit (IC) Approaches and Advances in Components and Materials