[PDF] Power Amplifiers - learnabout-electronics Power Amplifiers Amplifier circuits form the basis of most electronic systems, many of which need to produce high power to drive some output device. Audio amplifier output power may be anything from less than 1 Watt to several hundred Watts. Radio frequency amplifiers used in transmitters can be required to produce thousands of kilowatts of output power, and DC amplifiers used in[PDF] Audio Power Amplifier - kelm 3. The general principles of power amplifiers 60 4. The small signal stages 73 5. The output stage I 106 6. The output stage II 163 7. Compensation, slew-rate, and stability 183 8. Power supplies and PSRR 235 9. Class-A power amplifiers 255 10. Class-G power amplifiers 290 11. FET output stages 314 12. Thermal compensation and thermal dynamics 325 13.