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DSX12V: 12V in 12V out 10 AMPS!

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  • DSX12V: 12V in 12V out 10 AMPS!

    Hi all:

    I just got done designing a new DC-DC power supply that takes in 6-20 volts and puts out 12V on the output. With the output between 10-16 volts the output load can be 10 amps sustained, 13 amps peak. It is optimized for car use and will survive cranking no problem with a 10 amp load.


    It measures 1.9" by 3.5" by 1.2" and has 4 standard 0.25 inch automotive faston connectors.

    There is a power on LED and a On/Off Jumper.

    It can be ordered as a fixed output supply, or as a supply with an output range adjustable by a small pot.

    Sounds too good to be true? It's real. I even surprised myself when I measured my first sample and I measured 97.5% efficiency with a 85-watt load!

    The supply is 95+ percent efficient over the 8-15 volt range.

    Lookout. The DSX12V is pretty nice.

    -Jeff
    http://www.mpegbox.net/DSX12V/DSX12V_2.jpg
    http://www.mpegbox.net/DSX12V/DSX12V_top.jpg
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

  • #2
    I must be blind or stupid after midnight, is there such a thing as pricing info or more technical info? I'd be very interested
    I have found you an argument; I am not obliged to find you an understanding.

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    • #3
      Originally posted by rushnrockt
      I must be blind or stupid after midnight, is there such a thing as pricing info or more technical info? I'd be very interested
      Pricing is going to be somewhere around 50-80 dollars. I don't know all the manufacturing costs yet. Also, mp3car store might pick it up.
      MPEGBOX - Plexiglass Computer
      www.mpegbox.com

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      • #4
        Wow, if you can hit the lower end of that price range, this combined with an M1-ATX would make a sweet cost effective combo for the higher powered AMD/P4 boards out there (assuming the power sequencing can be done right).
        2004 4runner

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        • #5
          Originally posted by zootjeff
          Pricing is going to be somewhere around 50-80 dollars. I don't know all the manufacturing costs yet. Also, mp3car store might pick it up.
          Just wondering if there is such a thing as component list for your little design I am not going to compete with you promise!
          I am just figuring out all my options for senior project that is due in *gulp* 12 weeks. Thanks.
          I have found you an argument; I am not obliged to find you an understanding.

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          • #6
            Very nice jeff.

            Competition is heating up

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            • #7
              Originally posted by rando
              Wow, if you can hit the lower end of that price range, this combined with an M1-ATX would make a sweet cost effective combo for the higher powered AMD/P4 boards out there (assuming the power sequencing can be done right).
              Yaa, you can totally connect the PS_ON of the ATX connector to the PS_ON of this power supply and you'll get 12 volts at tons of amps for the VRM of a P4 Motherboard. Thats a nice application!

              I'm also thinking of other applications for it. It would make a good laptop adaptor too. I can adjust it to put out say 15 volts for example.
              MPEGBOX - Plexiglass Computer
              www.mpegbox.com

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              • #8
                If you produce a 5V POL module also, you'd pretty much have all bases covered.
                2004 4runner

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                • #9
                  Originally posted by rando
                  If you produce a 5V POL module also, you'd pretty much have all bases covered.

                  What is a POL module? How do most people use the 5 volts in this application?
                  MPEGBOX - Plexiglass Computer
                  www.mpegbox.com

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                  • #10
                    Originally posted by zootjeff
                    What is a POL module?
                    Point of load.

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                    • #11
                      Originally posted by zootjeff
                      What is a POL module? How do most people use the 5 volts in this application?
                      See above.

                      Putting the regulation at the point of the load assures that the proper voltages are delivered to peripherals without the significant voltage drop associated with long runs or the need to use large guage wire to avoid those same drops.

                      5V is the name of the game for most peripherals. Simple buck regulators that can output 2-3A would work for nearly all peripherals. A larger 5-10A supply might be more appropriate for a group of co-located devices. Proper sequencing of the power may be required for some applications to work properly but I think it's less of an issue than with what I was talking about before with the 12V supply and the M1-ATX.
                      2004 4runner

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                      • #12
                        gosh im about to solder fifteen 12v, 2amp max regulators together to make a 30amp 12v regulator for my pw200... perhaps if i fail or become too lazy i can pick a couple of these up

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                        • #13
                          Originally posted by therussman2002
                          gosh im about to solder fifteen 12v, 2amp max regulators together to make a 30amp 12v regulator for my pw200... perhaps if i fail or become too lazy i can pick a couple of these up
                          You are joking right?..... I hope your joking.....

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                          • #14
                            Originally posted by therussman2002
                            gosh im about to solder fifteen 12v, 2amp max regulators together to make a 30amp 12v regulator for my pw200... perhaps if i fail or become too lazy i can pick a couple of these up
                            Or, you could use one 12v regulator and 2-3 beefy pass transistors. But hey, its your project.

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                            • #15
                              Originally posted by therussman2002
                              gosh im about to solder fifteen 12v, 2amp max regulators together to make a 30amp 12v regulator for my pw200... perhaps if i fail or become too lazy i can pick a couple of these up
                              That's exactly what I did. I'm installing it in the car today. But I would have bought this had it been available at $50. Now if you want to combine it with your $42 shutdown controller and sell it to me at $70 I'll still bite . I'm a good beta tester!
                              Progress: 80% - Permanent install left.
                              Motion LS800 Tablet PC and dock.
                              Vista, Bu-535 GPS, RoadRunner, MPT2006.

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