H
HAYK
Reminding the TMC.
Instead of feedbacking only the VAS by an integrating capacitor in Miller compensation, at low frequencies the output gets also included. This will decrease the distortion of the output.
With two pole compensation, only high frequencies are submitted into integration.
The problem occurs with TPC when the loop gain is too high, the upper audio band needs to be included in the integrator. The answer is LKA's 3 pole compensation or instead of integrating only the VAS, why not as with TMC include the upper audio band from the output to be integrated.
Bellow is a circuit designed by @lineup that I applied to.
https://www.diyaudio.com/community/...plifier-15-watt-with-tmc-and-laterals.406282/
The global loop gain is promising 74db NFB @20khz. The inner loopgain showing 24db. By this the output stage is corrected by 98db@20khz.
Instead of feedbacking only the VAS by an integrating capacitor in Miller compensation, at low frequencies the output gets also included. This will decrease the distortion of the output.
With two pole compensation, only high frequencies are submitted into integration.
The problem occurs with TPC when the loop gain is too high, the upper audio band needs to be included in the integrator. The answer is LKA's 3 pole compensation or instead of integrating only the VAS, why not as with TMC include the upper audio band from the output to be integrated.
Bellow is a circuit designed by @lineup that I applied to.
https://www.diyaudio.com/community/...plifier-15-watt-with-tmc-and-laterals.406282/
The global loop gain is promising 74db NFB @20khz. The inner loopgain showing 24db. By this the output stage is corrected by 98db@20khz.
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I will study your schematic @HAYK
I think your compensation is to commplicated.
I intend to use only traditional TMC with 3 components.
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