Build your own USB powered Eurorack PSU
For the versatile LEET modular project, I designed a 3HP power supply that converts 5V USB-C to +12V and -12V. It is convenient to use, but not suited for powering a large number of units.
It should be quite straight forward to build it on a stripboard if you don’t have access to a 3D printer.
- Easy to build – only five components
- No need for a custom PCB
- Small formfactor (3HP)
- Power it from your computer or power bank.
- Suitable for small loads (5-6 LEET modules when powered from USB)
- USB-C breakout PCB
- CN6009 Step up DC/DC module
- MP1584 Step down DC/DC module
- Small slide switch (~20x6x13 mm)
- 2×5 pin header
- PLA for the 3D printer
Download the 3D models and print them. I used the following parameters:
- PLA material
- 0.4mm nozzle
- Support for the main body
The assembly is quite straight forward, but the limited space makes it a bit challenging. I recommend that you connect everything outside the case, with wires in suitable length and then trim the voltages (+/-12V). When everything works – move it in place and resolder wires when necessary.
Test the unit carefully before you connect it to other modules. It works great for me, but build and use it on your own risk – I do not take any responsibility for damage caused by this project.
Download project files
All files required for this project are available at this GitHub repository:
This project is open source under MIT License
(Attribution is optional, but appreciated /Johan von Konow ;)