cooling an overheating electronic transformer

Discussion in 'General Electronics Chat' started by alfredosimeon, Feb 16, 2013.

  1. alfredosimeon

    Thread Starter New Member

    Apr 18, 2012
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    0
    please can somebody help me on how to cool my overheating electronic transformer?
    i also need a power supply diagram for a big led display board
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    Normaly a transformer does not overheat.
    You must be demanding to much from the transformer.
    Use a larger transformer.

    Bertus
     
  3. takao21203

    Distinguished Member

    Apr 28, 2012
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    They do overheat, at least larger one's all need forced cooling.

    Use a suitable fan. Use a metal box for the transformer, and attach the fan to an opening so the air blows over the transformer.

    I have done that with a 500VA toroid, it heats up a lot after 100VA or so.

    Without to know wattage and making (picture?), all advice is guesswork.
     
  4. timescope

    Member

    Dec 14, 2011
    298
    44
    Hi alfredosimeon,

    Welcome to the forum.

    You need to provide more details, a schematic diagram etc.

    220v transformers may overheat when used on a 240v supply.

    How "big" is the LED display, how many leds, supply voltage etc.

    Timescope
     
  5. t06afre

    AAC Fanatic!

    May 11, 2009
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  6. takao21203

    Distinguished Member

    Apr 28, 2012
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    He's using an electronic transformer, everything already built in.
     
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