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Forum Made a Cheep Power Supply using Computer SMPS !
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  • Replies 14 replies
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  • smps
  • psu
  • cheep
Related

Made a Cheep Power Supply using Computer SMPS !

gsgill112
gsgill112 over 7 years ago

Hey guys , Just wanna share the Cheep Power supply I made using an old SMPS laying around,

 

Can anyone suggest some more hacking to it image Or may some of community members might have made one themselves, care to share image

 

Regards,

GS Gill

 

imageimage

imageimage

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Top Replies

  • mcb1
    mcb1 over 7 years ago +8
    I followed jw0752 blogs Using the Coarse + Fine Control circuit in my new Dual Bench Supply Oh No! Not another #@&%# Power Supply and since it was so easy to follow ... I made did this one. (BTW John it…
  • shabaz
    shabaz over 7 years ago +6
    This is my home-made PSU.. not very good, it gets a bit warm : ) I only use it when I need a few hundred mA max. It's linear, and can manage 1A on a good day but not at low voltages of course. No current…
  • DAB
    DAB over 7 years ago +6
    I am using a smaller XT power supply to use with my Blade to power my Raspberry PI. DAB
  • 14rhb
    14rhb over 7 years ago

    Hi Gurinder,

     

    Something like that is always handy for those high current projects, thank you for sharing your photos.

     

    I use a modified ATX PSU to drive my festive lighting as that requires lots of current at both 12v (RGB LED strips) and 5v (WS2812 driver IC LEDs).

     

    Rod

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  • mp2100
    mp2100 over 7 years ago in reply to hlipka

    Well, yes, that's one way but I consider that too easy.image  Why do that when I can mess around with solder and wires and connectors.  And at the moment a cheap 12v to 5v DC-DC converter. Problem solving and troubleshooting is fun, releasing the smoke (in a safe location) is educational.  Reading the suggestions above and below, I will use my multimeter before I connect any valuable SBC.

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  • 14rhb
    14rhb over 7 years ago in reply to mp2100

    releasing the smoke (in a safe location) is educational

    Very true - you can actually identify some faults by smell if you've experienced them before. However if you can avoid the smell and the small white cloud of gas from a burnt out tantalum capacitor....that is probably a good thing !

     

    [On the subject of fault finding, the back of a finger, just in front of the middle knuckle, also seems more sensitive to heat.]

     

    Rod

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  • Jan Cumps
    Jan Cumps over 7 years ago in reply to mp2100

    mp2100  wrote:

     

    Well, yes, that's one way but I consider that too easy.image  Why do that when I can mess around with solder and wires and connectors.  And at the moment a cheap 12v to 5v DC-DC converter. Problem solving and troubleshooting is fun, releasing the smoke (in a safe location) is educational.  Reading the suggestions above and below, I will use my multimeter before I connect any valuable SBC.

    This one has high voltages though. The type of educational life lesson you may get while enjoying the smoke of a switching power supply connected to mains may be different than the one you get while inhaling the vape of a 555 timer...

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