Making a 12V power supply from a PC PSU

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  • Опубліковано 21 січ 2025

КОМЕНТАРІ • 19

  • @genuz
    @genuz 3 місяці тому

    Touching a metal box without ground he just did shoddy solderingwork in while plugging in mains and then warning people about 12V live. Priceless.

    • @lostelectrons
      @lostelectrons  3 місяці тому

      You're 100% correct. Please tag me in a video of your own and go into full detail about everything I did incorrectly. Kinda surprised you didn't mention I wasn't using a fume extractor for the lead-based solder I was using as well.

  • @potterteksmith7548
    @potterteksmith7548 Рік тому +1

    Played with these PC power supplies myself, well some years ago, and what I noted then was that the supplies used the 5V output to regulate for varying load which leads to some poor regulation if the 12V output is loaded and the 5V not loaded IE the 12V output will 'sag' as the load increases because it's not being 'seen' by the controller chip.
    If the 5V output is loaded and 12V unloaded then the 12V voltage will rise as the controller PWM adjusts to maintain the 5V target.
    I'm saying it does work but it's not precision by any means.
    I'd also add a cautionary note about handling the PCB without ensuring the primary side capacitors are fully discharged first - never rely on the design including discharge resistors or that they are actually functional even if they do exist!

  • @ibhienkeliat
    @ibhienkeliat 5 років тому

    Great tutorial. Good work.

  • @memory_maker_
    @memory_maker_ 4 роки тому

    Great work man

  • @avelinofrias157
    @avelinofrias157 3 роки тому +1

    Why did the power supply shuts off after 10 seconds of being on?

    • @lostelectrons
      @lostelectrons  3 роки тому

      At the end? I turned it off by the switch

  • @thekillerexe-ur3yy
    @thekillerexe-ur3yy 2 роки тому

    i was wondering if there is any way to tell how many watts a power supply would be making at 12 volt im trying to use it to power a car amp i got a 600 wat amp working fine i just dont wanna push it and blow the power supply or worse

    • @thekillerexe-ur3yy
      @thekillerexe-ur3yy 2 роки тому

      i know cutting them apart is not so highly looked at and alot of people will say not to do but how do i know how many amps its putting out do i need a multi meter if it helps its a old dell power supply its 405 watts i think

    • @lostelectrons
      @lostelectrons  2 роки тому

      @@thekillerexe-ur3yy if you can still see the sticker label, it should tell you under the DC Output rating what the Max Watts is. it should also tell you what kind of current (amps) it will do, both are limiting factors on what the power supply will do. if you want to do the math on it, or if it doesnt show the watts, you can calculate it by (Amps) X (Volts)

  • @ziadfawzi
    @ziadfawzi 2 роки тому

    Thank you

  • @KCBhandy
    @KCBhandy 3 роки тому

    Have you finished it yet?:

  • @nedeljkooctenjak9690
    @nedeljkooctenjak9690 Рік тому +2

    for this you really need to be an intellectual,

  • @oturanboga6225
    @oturanboga6225 3 місяці тому

  • @sergioramoneroles5807
    @sergioramoneroles5807 2 роки тому

    Gracias por la exposición

  • @slgamingpark1489
    @slgamingpark1489 4 роки тому

    sri lanaka ela kollo

  • @tonydavey3741
    @tonydavey3741 3 роки тому +1

    Why play awful music when you are trying to explain what you are doing, defiantly a thums down

  • @liketiktok1305
    @liketiktok1305 Рік тому

    pajako ndak tukang service kodoh, dari caro manyolder e se lah ketauan.