Related external links

Related external links

EEZ BB3 on the EEVblog forum

EEZ BB3 crowdfunding discussion on the EEVblog forum


EEZ PSU on the EEVblog forum

EEZ PSU on the DIYaudio forum

EEZ PSU on the forum

EEZ PSU on the

EEZ PSU on the

Hackaday about EEZ PSU (thanks Elliot!)


DIY power supply projects

We are trying here to make a collection of open source power supplies. Please find below what we found so far (sorted alphabetically) and you are welcome with your suggestions.


Only a project that include some sort of programming and is open source will be listed.



Danger From Deer – Bench power supply build


Dave Erickson – DIY SMU


DIYaudio forum – Frex: Triple outputs 160W Lab PSU – EPSUX3 version 2


EEVblog – μSupply, a compact Arduino compatible battery powered laboratory power supply


EEVblog forum – Cowana: Korad KA3003D redesign and upgrade


EEVblog forum (Leonid Ivanovitch) – PSL-3604 DIY Bench Power Supply


Elektor Magazine – Sunil_M: Platino Adjustable Bench Power Supply – Fully Programmable Modular Bench Power Supply

GitHub – ElbSupply: Simple linear bench supply

GitHub – Fridrik: DPS201 Lab PSU


JuanGg Projects – Linear dual channel lab power supply


Kerry Wong – A Digitally Controlled Dual Tracking Power Supply


Koyodza – Bench lab power supply PSA2


Musings of a WAHZ – Lab Power Supply


Quertyboy design – Digital PSU

GitHub – MOD1 modular power supply


ThomasVDD – SmartSupply (Digital Battery Operated Power supply) – A Digital DC Power Supply (programmable bench power supply unit), hardware version 3.0

Power pre-regulator projects


EEZ CF-DIC power pre-regulator with wide input and wide output voltage range, multiple protections and four bias power outputs


Yu3ma – LLC resonant half-bridge isolated 200W Switched Mode Power Supply based on Fairchild’s (now On Semiconductors) FSFR2100XS power controller.


Iowa Scaled Enginnering – Rebuilding the Elektor 400W power supply: pre-regulator

Interesting readings

Research how to build a 4 quadrant bench power supply, aka “poor man’s source measure unit