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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
Parents
  • mcb1
    mcb1 over 7 years ago

    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's been very handy)

     

    image

    image

    I used the case from a computer supply

     

    image

    The cooling fan is controlled by a Digispark clone reading a DS8B20 temperature sensor and switching the relay.

     

     

    image

    Dallas 18B20 poked into the cooling fins behind the output control transistor

    image

    Schematic overview.

    Note the current meter goes in the negative lead to allow much greater voltages to be monitored.

     

    Cheers

    Mark

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  • jw0752
    jw0752 over 7 years ago in reply to mcb1

    Hi Mark,

    Looks like you had as much fun as I did.

    John

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  • jw0752
    jw0752 over 7 years ago in reply to mcb1

    Hi Mark,

    Looks like you had as much fun as I did.

    John

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