I have completed the new version of my amplifier which is a class AB, 300 watts per channel, and has all plans available at
GitHub - profdc9/PowerAmpAudio: Power Amplifier based on Michael Chua's C300 amplifier
including schematics, gerbers, drill patterns, a grounding diagram, and instructions. There is the amplifier, a soft start board, a power conditioning board, and a board for converting between balanced and unbalanced audio signals. Version 3 can use either spade or screw terminal connectors for the power, better suppression of ground loops, and speaker connections and has three options for frequency compensation. The latest build is shown below in a 4U rack mount case:
Visit the github site and you can download all of the plans using the download link and star it if you like it.
GitHub - profdc9/PowerAmpAudio: Power Amplifier based on Michael Chua's C300 amplifier
including schematics, gerbers, drill patterns, a grounding diagram, and instructions. There is the amplifier, a soft start board, a power conditioning board, and a board for converting between balanced and unbalanced audio signals. Version 3 can use either spade or screw terminal connectors for the power, better suppression of ground loops, and speaker connections and has three options for frequency compensation. The latest build is shown below in a 4U rack mount case:
Visit the github site and you can download all of the plans using the download link and star it if you like it.
I have not tried it yet. I hope to try it, but I had to return some of the equipment I was using to test it and so I won't get to for awhile. I included OITPC because I actually could simulate it and there was at least, in simulation, an improvement on the order of 10-14 dB of the distortion at 20 kHz and at near full power over conventional miller compensation. This is compared to about 6-8 dB improvement from TPC. But the current version I put in the CMC because I wanted to test the basic board, because this project is as much for educational purposes as for experimentation. But I hope to soon.
One problem I have is that the distortion at low power is incredibly low and is likely to be dominated by crossover distortion, and my speakers can't take 300 W of power (and it would be ear bleeding loud). So I'm not sure how to test this, unless I get a distortion analyzer, but I can see how it sounds at low power for what its worth.