Yellowsnow17
20th October 2004, 06:08
Hey All,
This is a project log to track my progress in building a mini power supply for my desk. I like to fiddle with electronics as a hobby, and I've always wanted a variable DC power supply so I can stop using old computer PSU's to test my circuits. It sucked every time I wanted to test a circuit or LED or whatever I had on my desk, I always had to crimp a molex on it and plug it into a computer power supply. But no more!
Mnpctech has graciously sent me a sample project box (thanks a lot! :)) to put my mini DC power supply in. For more information, see this thread:
http://www.wizdforums.co.uk/showthread.php?t=625
Ok, the goal is to design a variable power supply and fit it in the box. I want it to be able to achieve approximately 0-18 volts and deliver 1.5 amps of current. I haven't drawn up the box in CAD yet, but will do that very shortly. Also, I have an electrical schematic drawn up which I will either scan or do something else with to show here as well. This is only the second project log I've attempted to write so bear with me. Detail CAD and electrical drawings will be up soon, but for now a couple teaser pics:
http://img.photobucket.com/albums/v158/DENorth17/PS1.jpg
The project box from mnpctech and the first piece of hardware that was received: The world's smallest* LED voltmeter.
*not a guarantee...
http://img.photobucket.com/albums/v158/DENorth17/PS2.jpg
The voltmeter hooked up to my breadboard to see if it works. It's displaying erroneous information because it's not hooked up to anything, just being powered. This little voltmeter will go on the front of the box and display what the current output voltage is.
Pics up soon of the overall schematic so you can see what's going on...
This is a project log to track my progress in building a mini power supply for my desk. I like to fiddle with electronics as a hobby, and I've always wanted a variable DC power supply so I can stop using old computer PSU's to test my circuits. It sucked every time I wanted to test a circuit or LED or whatever I had on my desk, I always had to crimp a molex on it and plug it into a computer power supply. But no more!
Mnpctech has graciously sent me a sample project box (thanks a lot! :)) to put my mini DC power supply in. For more information, see this thread:
http://www.wizdforums.co.uk/showthread.php?t=625
Ok, the goal is to design a variable power supply and fit it in the box. I want it to be able to achieve approximately 0-18 volts and deliver 1.5 amps of current. I haven't drawn up the box in CAD yet, but will do that very shortly. Also, I have an electrical schematic drawn up which I will either scan or do something else with to show here as well. This is only the second project log I've attempted to write so bear with me. Detail CAD and electrical drawings will be up soon, but for now a couple teaser pics:
http://img.photobucket.com/albums/v158/DENorth17/PS1.jpg
The project box from mnpctech and the first piece of hardware that was received: The world's smallest* LED voltmeter.
*not a guarantee...
http://img.photobucket.com/albums/v158/DENorth17/PS2.jpg
The voltmeter hooked up to my breadboard to see if it works. It's displaying erroneous information because it's not hooked up to anything, just being powered. This little voltmeter will go on the front of the box and display what the current output voltage is.
Pics up soon of the overall schematic so you can see what's going on...