DIY Variable Power Supply

Aug 07th, 2019 | by: Engineer Kid
Category: Electronics Basic Circuits
Views 1015
Hello Guys, from the past few months I have been looking for a bench power supply for myself. But looking at their prices I decided to build one for myself. This power supply costed me around 25$ (approx 1700 INR). The main power supply used here is an old SMPS from a desktop computer.
Like every bench power supply this one also has variable voltage and current limiting feature. It also has fixed voltage outputs.
Watch the complete build video on YouTube.


Below I have added some pictures of the build from my website. You can follow the step by step tutorial there. Also the circuit diagram is on my website.

Here are some features of the project.
This is how I made the case
This is how it looked after painting


  • about 4 years ago

    Looks like a very strong PC Thanks for sharing


    about 4 years ago

    Nice work

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