2021-09-10 16:39:46

Building A Custom DIY Lab Bench PSU

Enhance the process of building stuff

The idea of having a lab PSU was in my head since I finished my first small electronics project. It was a pain in the ass to test different components of different voltages. Most of the time I used various power supplies which I scrapped from old phones and power regulators.

A few months ago I scrolled through hackaday.io and stumbled across this project by a user named Miles. He provided two versions of his build:

  • 2 PSU module

  • 1 PSU + 1 soldering station module Since I already had a good soldering station, I decided to stick with just the PSU module.

BOM

Most of the parts can be bought as described in the BOM (I bought most parts from aliexpress)

  • 2x Meanwell LRS-100-24 (24V PSU)

  • DPS3005 PSU module

  • some 1mm2 cables

  • some terminals

  • 2 red, 2 black, 1 green banana socket

  • AS-10 Socket

Result

The project is straight forward. I basically followed the Instructions to wire everything up. To be safe, I double checked every connection. I printed the case and the front panel in black ABS and put everything together.

The case printed for more than 12h and after it was finished I saw that it had some layer separations.

case

However, this is not a great deal - so the lab PSU has some more holes for air circulation :D

Here is the final result:

psu

Specs

2 separated PSU outlets

  • current: 0-3A

  • voltage: 0-24V

  • preset storage function