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Small-Signal Distortion. Amplifiers. Audio ... - AUDIO ...
https://blog.audioworkshop.org/small-signal-distortion-amplifiers-audio/#:~:text=We%20examine%20how%20intermodulation%20distortion%20of%20small%20two-tone,of%20active%20device%20%28FET%2C%20BJT%20and%20vacuum%20triode%29.
Small-Signal Distortion. Amplifiers. Audio ... - AUDIO ...
https://blog.audioworkshop.org/small-signal-distortion-amplifiers-audio/
Small-Signal Distortion. Amplifiers. Audio. We examine how intermodulation distortion of small two-tone signals is a ected by adding degenerative feedback to three types of elementary ampli er circuits (single-ended, push-pull pair, and di erential pair), each implemented with three types of active device (FET, BJT and vacuum triode).
Op amps in small-signal audio design – Part 2: Distortion ...
https://www.eetimes.com/op-amps-in-small-signal-audio-design-part-2-distortion-in-bipolar-and-jfet-input-op-amps/
Similarly, the shunt-feedback amplifier is the best case for CM distortion as there is no significant signal on the inputs. Series-feedback amplifier stages fall between these two cases. For a +10 dB amplifier stage, the signal on the inputs is one-third that of the output, and so the input distortion is less, but still very definitely present, as we saw in Figures 4.6 and 4.9. …
DISTORTION MEASUREMENT IN AUDIO AMPLIFIERS
https://renardson-audio.com/distortiontest.pdf
The open loop gain of -1.2x108/s chosen in Section 4.1.1. gives a gain of 8.7 dB and a phase lag of 90° at 7 MHz. The total gain round the feedback loop at this frequency is about unity while the phase lag is 135°. As the gain has fallen to unity before the phase lag has reached 180othe amplifier will be stable.
Op amps in small-signal audio design – Part 1: Op amp ...
https://www.eetimes.com/op-amps-in-small-signal-audio-design-part-1-op-amp-history-properties/
By Douglas Self 05.25.2011 0. Audio design has for many years relied on a very small number of op-amp types; the TL072 and the 5532 dominated the audio small-signal scene for many years. The TL072, with its JFET inputs, was used wherever its negligible input bias currents and low cost were important. For a long time the 5534/5532 was much more …
(PDF) Distortion Correction Circuits for Audio Amplifiers
https://www.researchgate.net/publication/269093795_Distortion_Correction_Circuits_for_Audio_Amplifiers
This article describes an active feedback system which can be added to audio power amplifiers to clean up their sound by reducing total harmonic …
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