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Archive for the ‘Converting ATX PC Power Supply’ Category

18 Feb, 2010

ATX Variable supply circuit.

Posted by: admin In: Converting ATX PC Power Supply

A continuation of the ATX PSU conversion, I wanted to add a fully variable output and followed these notes to build a suitable circuit on breadboard for testing purposes:
http://www.wikihow.com/Add-Variable-Voltage-to-Your-ATX-Based-Bench-Power-Supply
The main component is the LM317T voltage regulator. Here is the trial circuit:

The pot is quite sensitive and I need to sort this out as it is [...]

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17 Feb, 2010

ATX PC Power Supply to Electronics Variable Supply

Posted by: admin In: Converting ATX PC Power Supply

I was in need of a 5v power supply for my microcontroller circuits as the supply I have was not working with them for some reason and I was not happy keep using batteries. There are many write-ups online so if your interested, do a google and don`t trust this. This is just a log [...]

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Converting ATX PC Power Supply (2)
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admin: I appreciate your interest in this project. I have far too many other little projects on the go and have just had a major change around, reorganisatio
Mark Peterson: What is your current status? Any advances since July? I am curious to see how you end up on this project. This has got to be a labor of love. I endeav
admin: Yes, I machined the graphite. It was very messy! I`ve tried it without the counter weight and still nothing. It is currently in bits again and I`m mak

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I`ve always wanted to learn more about engineering and electronics and my list of projects both complete and ongoing has been growing over the past few years. I like to document my progress more for my own understanding as much as anything, it helps keep me on track. I hope you can find something of interest to you, my clock building project is my priority but as you can see, I have many other builds I`m working on. Please leave a comment, it is nice to see people are reading!