.. meta::
        :image: ../../_images/psu_main.jpg

<span style="color:grey; "><sub>2021-09-10 16:39:46</sub></span>

# 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](https://hackaday.io/) and stumbled across this [project](https://hackaday.io/project/176735-modular-psu-soldering-station) 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](pictures/PSU_case.jpg)

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](pictures/psu_main.jpg)

## Specs
**2 separated PSU outlets**
- current: 0-3A
- voltage: 0-24V
- preset storage function