Reuse - Re-purpose an Old Computer Power Supply
Intro: Reuse - Re-purpose an Old Computer Power Supply
Old computer power supplies are a great resource for ham radio gear, CB radios, chargers, or any other item that needs a regulated 12 volt source. Many of these older power supplies do not have an on/off switch on the unit. By tapping the green wire and any of the black wires on that connection plug that goes to the motherboard a standard switch can be wired in.
Another benefit is that these supplies have several wired 12 volt and 5 volt outputs. A custom supply with USB plugs and several cigarette-style receptacles could be constructed.
Be safe. Have fun!
Thanks for watching.
Another benefit is that these supplies have several wired 12 volt and 5 volt outputs. A custom supply with USB plugs and several cigarette-style receptacles could be constructed.
Be safe. Have fun!
Thanks for watching.
8 Comments
sksanaullah762 1 year ago
russ_hensel 9 years ago
Just a note to let you know I have added this instructable to the collection:
Encyclopedia of ATX to Bench Power Supply Conversion
>> https://www.instructables.com/id/Encyclopedia-of-ATX-to-Bench-Power-Supply-Conversi/
Take a look at about 70 different approaches to this project.
stangtime 9 years ago
Cool. Thanks.
stangtime 11 years ago
onemoroni1 11 years ago
Phil B 11 years ago
pfred2 11 years ago
https://www.instructables.com/id/300-Watt-Linear-Power-Supply/
In the schematic I subbed it for the LT10A04 The diode out of the PSU was rated for 50 amps or something silly like that. You can just see it in this picture it is the topmost left hand part on the circuit board that looks like a power transistor. Between the black and the red wires.
That is the power supply I use for my CNC project. It is a lot nicer than some junky old PC PSU. About the handiest thing I've found with PC PSUs is the metal case itself. I use those more than anything else I've ever salvaged out of a PC PSU. I guess the wire is handy too. It is nice stranded hookup wire. Sometimes I get a decent heat sink out of a PC PSU, most of the time they're those aluminum sheet heat sinks and they're pretty terrible. Other than that the rest of it I've never found much use for myself.
stangtime 11 years ago