Audio Amplifier Output Stage Circuit

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Basic Audio Amplifier - eCircuit Center

http://ecircuitcenter.com/Circuits_Audio_Amp/Output_Stage/Output_Stage.htm#:~:text=Your%20basic%20output%20stage%20is%20the%20double%20emitter,The%20Darlington%20pair%20creates%20a%20super%20beta%20transistor.

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Amplifiers: Output stage - Lenard Audio

https://education.lenardaudio.com/en/12_amps_5.html

Darlington complementary is the basic order in how the output stage of an amplifier is taught. All output transistors are arranged as emitter followers. The collectors are connected directly to the rails. The emitter follows the signal on base within 650mV. The output transistors do not increase the size of the audio signal.

AUDIO OUTPUT STAGE - radioremembered.org

http://www.radioremembered.org/output.htm

Function: The output or sometimes called the power-amplifier stage follows the detector, and is the last stage in the signal path of the receiver. The signal level from the preceding detector stage would be about sufficient to operate a pair of headphones, so this signal must be amplified to a sufficient level to drive a loud speaker.

Audio amplifier output stage | All About Circuits

https://forum.allaboutcircuits.com/threads/audio-amplifier-output-stage.49100/

DAC output filtering with Sallen-Key opamp configuration connected to audio power amplifier RCA in: Analog & Mixed-Signal Design: 12: Jul 8, 2017: S: high power output stage buffer driver for audio amplifier: Analog & Mixed-Signal Design: 14: Jun 6, 2017: A: distorted output in class A audio amplifier: Analog & Mixed-Signal Design: 12: Nov 24 ...

Audio Power Ampliﬁer - de Smith

https://www.desmith.net/NMdS/Data/Books%20and%20Manuals/Self%20-%20Audio%20Power%20Amp%20Design%20Handbook%204th%20Edn.pdf

The output stage I 109 6. The output stage II 166 7. Compensation, slew-rate, and stability 186 ... Thermal distortion in a power amp IC Selecting an output stage Closing the loop: distortion in complete ampliﬁers Conclusions ... A complete Trimodal ampliﬁer circuit The power supply The performance Further possibilities

Output Stages - University of Pennsylvania

https://www.seas.upenn.edu/~ese319/Lecture_Notes/Lec_20_PowerAmps1_10.pdf

Emitter follower circuit has best power transfer efficiency, since its output impedance is low. As a bonus, its input impedance is relatively high. Principal advantage – lower distortion than Class B & AB. Principal disadvantage – lower power efficiency than Class B & AB. Used as op amp output stage and some audio output power amps.

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