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Thread: Power for DIY bridge

  1. #1
    Join Date
    Jul 2010
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    Bradenton, Florida
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    Default Power for DIY bridge

    Can anyone recommend the right power supply for the DIY E 131 DMX bridge. I bought one used from another member and he said that they don't come with a power supply and DIY store don't sell anything for it as far as I can see.
    Thanks
    John

  2. #2
    Join Date
    Sep 2007
    Location
    Pearland, TX
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    Default Re: Power for DIY bridge

    I use a 6amp power supply inside the CG1000 case with the bridge. I bought 6 from ebay for $4 each, used. Here is an Amazon link: https://www.amazon.com/Supply-LEDMO-...r+supply&psc=1

  3. #3
    Join Date
    Aug 2012
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    Default Re: Power for DIY bridge

    I use an old laptop power supply....The bridge supports anything from 7 to 24v.
    Look at the wiki: http://www.doityourselfchristmas.com...e_E1.31_Bridge
    Phil

  4. #4
    Join Date
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    Default Re: Power for DIY bridge

    Quote Originally Posted by DrNeutron View Post
    I use an old laptop power supply....The bridge supports anything from 7 to 24v.
    Look at the wiki: http://www.doityourselfchristmas.com...e_E1.31_Bridge
    It also supports 5v power input if "well regulated". I recommend using a 12v supply and allowing the on board regulator to do its job. You can use a simple 12v wall wart supply if it is around .5amp or better.

    From the wiki

    "Power Jumper - JP1

    This jumper is used if you are supplying either a well regulated +5v or unregulated +7-24v. If you apply +5vdc to the terminal block, you should put the jumper on the "EXT" setting (indicating you are getting 5v externally). If you apply +7-24vdc, you should put the jumper on the "INT" setting (indicating you are getting 5v internally via the 5v regulator).

    You MUST ensure you have this jumper set correctly if you are using voltages greater than 5v as it may (and probably will) cause permanent damage to some components on the board. The Propeller chip uses 3.3v and would be fine but the RS-485 transceivers are 5v devices and would be probably be damaged.
    "
    Last edited by plasmadrive; 10-23-2018 at 08:24 AM.

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