DIY power amplifier | Thursday, December 10th 2015, 15:55 | |
In one of my older videos, I tested an audio power amplifier circuit by Douglas Self [1] on a breadboard.
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After that evaluation showed how great the design really is, I decided to create a real PCB design for it so I can actually use this as one of my daily use amps.
The entire project, designed using KiCad, is available over in my git repository [2]. KiCad [3] is free and open source software, so just download and install it to open the project.
Also note that the component designators differ between my schematic/layout and the ones on the original schematic by Douglas Self. I also added an additional resistor (Rtodo) as I saw excessive current through the nearby components when clipping.
Sadly, I never got around to making a case for it, so it just sits on my bench as is. Here's a dusty photo of how it turned out:
Should I ever finish the project in the future, I might make another video about it. If you have any questions until then, don't hesitate to contact me via email.
Sources:
[1]: http://www.douglas-self.com/ampins/dipa/dipa.htm
[2]: https://git.notsyncing.net/electronics/poweramp-dself
[3]: http://kicad-pcb.org/