INTRODUCTION
Some racks I use in developing my synth modules needed power, so I designed a combination of linear power supply and bus board that can be built from available (and not too costly) components.
This post shows the Eurorack_PSU board.
→ See also the Eurorack_Bus_Board
DANGER!
DANGER OF DEATH:
Building the PSU board requires wiring a transformer to mains voltage, which is a quick way to accidentaly lose your life!
Don’t attempt the build if you are not absolutely sure you know what you are doing!
CAUTION: Use the project files at your own risk!
THE PSU
The Eurorack_PSU board is powered by a center-tapped toroidal transformer and outputs standard +12V, -12V, +5V @ 1A each.
Although the power board is intended for use with a Eurorack system, it can also be adjusted for +15V, -15V output. Just make sure you use adequately sized transformer and fuses. The power bottleneck is in the LM317/LM377 regulators, which can supply 1.5A max.
ABOUT THE PROJECT
All design files are publicly hosted and freely downloadable on GitHub, including Gerber-files to directly order PCBs from a manufacturer.
The project also features an interactive BOM that can be opened in a browser to tick off sourced/placed components.
(More information about the license of the project can be found in the repositories.)
The design was made in KiCad.
Find all project files and much more information in the repository!