LED 230/12V-10W/11W/12W Driver

Discussion in 'The Projects Forum' started by chrash786, Apr 24, 2013.

  1. chrash786

    Thread Starter New Member

    Apr 24, 2013
    2
    0
    Dear

    Really i am a fresher, But interested in LED based circuit,

    Please any body can help me to make a simple and lasting driver circuit for making LED lamp 10W/11W/12W

    These are available in market , but i need to make myself if i can

    My facilities are

    1, 1W LED as per reqired voltage
    2, 230V input

    Thankx in advance
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,638
    2,344
    chrash786 likes this.
  3. aws505

    Member

    Mar 11, 2013
    59
    7
    Hi,

    If you want to try to do something a little cheaper, you can always use a transformer and a diode bridge to make your own 12V supply. Something like the attached should work. The part numbers in my schematic aren't indicative of what you'd need. You need to be very careful specifying your parts correctly so that you don't hurt yourself or your house wiring.
     
    chrash786 likes this.
  4. tubeguy

    Well-Known Member

    Nov 3, 2012
    1,157
    197
    So, are you thinking of using 10-12 1 watt LED's ?

    As Bertus said use a constant current driver, and you will need heat sinks.

    Do you have a particular LED in mind?
     
  5. keaster

    New Member

    Apr 28, 2013
    11
    0
    I have a question about 3 watt star leds I bought from ebay
    Running 3 of these in series

    http://www.ebay.com/itm/10-pcs-Cool...560?pt=LH_DefaultDomain_0&hash=item4ac2f82278

    Powered from this

    http://www.ebay.com/itm/27109472565...eName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

    I tested the current draw and its about 250mA

    When I test it from a 12v 1000mA wallwort the leds run warm to a bit hot
    but when I test on a 12v 12ah SLA battery they run REALLY hot, why the difference I thought the LED driver set the current
     
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