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  • Building a DC power supply

    I am looking for info from someone here who has some knowledge about building a variable DC power supply that is powered with regular house hold 110 AC. I am needing a supply that can output from 0 - 150 or 200v and a adjustable current level from 0-5ish amps. Any first hand expierience here????

  • #2
    what is this for?
    "When the people find that they can vote themselves money, that will herald the end of the republic." -Benjamin Franklin
    "A democracy will continue to exist up until the time that voters discover that they can vote themselves generous gifts from the public treasury." -Alexander Fraser Tytler

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    • #3
      I would guess

      Originally posted by CJ View Post
      what is this for?
      truth serum,

      I'll get you a picture of mine when my phone gets enough charge.
      Don't worry about what you can't change.
      Do the best you can with what you have.
      Be honest, even if it hurts.

      "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; Its inherent virtue is the equal sharing of misery" ... Winston Churchill

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      • #4
        Originally posted by jyro View Post
        truth serum,
        "When the people find that they can vote themselves money, that will herald the end of the republic." -Benjamin Franklin
        "A democracy will continue to exist up until the time that voters discover that they can vote themselves generous gifts from the public treasury." -Alexander Fraser Tytler

        Comment


        • #5
          Originally posted by CJ View Post
          what is this for?
          Power supply for anodizing titanium.

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          • #6
            it's really hard to get 200 volts dc from 120v ac.
            Attached Files
            Don't worry about what you can't change.
            Do the best you can with what you have.
            Be honest, even if it hurts.

            "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; Its inherent virtue is the equal sharing of misery" ... Winston Churchill

            Comment


            • #7
              My dad builds phase converters. I can see if he can do something.

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              • #8
                Jyro, I see the info tag on that.... what does the 2-25/5-50 mean on the output #'s? I know that it is the measurements depending in if you have 120 or 240 input voltage but I am not used to seeing the ratings written like that. I could do fine with 120vdc output,I would like more though if it was easily available. If it's not like I said 120 will be fine but I need at least that much.
                Last edited by inline 6; 08-27-2014, 07:35 PM.

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                • #9
                  5amp 200VDC power supply is a going to be a beast and definitely something you are not going to build at home. Dangerous as hell as well. Good luck. We use 2 amp regulated bench supplies that can go to 200 VDC at work and they cost close to $700.00.

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                  • #10
                    PS tag

                    Originally posted by inline 6 View Post
                    Jyro, I see the info tag on that.... what does the 2-25/5-50 mean on the output #'s?
                    2-25 volts @ 12 amps with 120v supply or 5-50 volts @ 5 amps with 220 supply


                    I looked at anodizing aluminum, it only took 30 volts. Does Ti take that much more voltage?
                    Don't worry about what you can't change.
                    Do the best you can with what you have.
                    Be honest, even if it hurts.

                    "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; Its inherent virtue is the equal sharing of misery" ... Winston Churchill

                    Comment


                    • #11
                      Originally posted by jyro View Post
                      2-25 volts @ 12 amps with 120v supply or 5-50 volts @ 5 amps with 220 supply


                      I looked at anodizing aluminum, it only took 30 volts. Does Ti take that much more voltage?
                      depends on the color you want.

                      Men have become the tools of their tools.
                      -Henry David Thoreau

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                      • #12
                        Originally posted by Mark04 View Post
                        5amp 200VDC power supply is a going to be a beast and definitely something you are not going to build at home. Dangerous as hell as well. Good luck. We use 2 amp regulated bench supplies that can go to 200 VDC at work and they cost close to $700.00.
                        Yeah, I've been considering it for the last 2 hours and, while I think it could be done, there's some risk to building power supplies that lack adequate control circuitry. For low power applications, there are some really economical regulated power supplies that can be constructed. I don't know how well those circuit schemes scale to a 1000W power supply.
                        Men have become the tools of their tools.
                        -Henry David Thoreau

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                        • #13
                          Originally posted by Mark04 View Post
                          5amp 200VDC power supply . Dangerous as hell as well.

                          Thats an understatement.

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                          • #14
                            Originally posted by jyro View Post
                            2-25 volts @ 12 amps with 120v supply or 5-50 volts @ 5 amps with 220 supply


                            I looked at anodizing aluminum, it only took 30 volts. Does Ti take that much more voltage?
                            Ok what is 2-25 mean specifically. I have not seen the rating before with a 2- or the 5- in front of it.

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                            • #15
                              DC is some NASTY stuff... that is all.

                              Ask me how i know.

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