Electronics EL Backlight Inverter Diagram Needed

Discussion in 'Modding' started by Sardien, 25 Mar 2003.

  1. Sardien

    Sardien What's a Dremel?

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    Hi all!

    I need to know how to build an inverter to take 12VDC to 90VAC 400hz, to power a LCD's EL backlight.

    Your help is much appreciated!

    Thanks! :)

    God Bless & Kind Regards,

    Richard :)
     
    Sardien, 25 Mar 2003
    #1
  2. Smilodon

    Smilodon The Antagonist

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    wouldn't it be simpler and cheaper to but one ready made? those don't cost that much...
     
    Smilodon, 25 Mar 2003
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  3. Oclocker

    Oclocker What's a Dremel?

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    They can be rediculously expensive or cheap - only really cheap source I have found is in Hong Kong - please post any UK/US ones ya find?
     
    Oclocker, 26 Mar 2003
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  4. Smilodon

    Smilodon The Antagonist

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    http://www.elfa.se/elfa/produkter/se/20/2011645.htm


    This is a Norwegian site.. i don't know.. but i think they ship to UK aswell.. the price is about 100 NOK = 14$ mabye?

    i don't know.. but i guess some UK shops should carry those.. what about maplin?
     
    Smilodon, 26 Mar 2003
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  5. Oclocker

    Oclocker What's a Dremel?

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    Maplins would be expensive if they stocked them - you can get inverters with 15cm * 20cm of el sheet for aprrox £8 ($13)..
     
    Oclocker, 26 Mar 2003
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  6. wicked

    wicked What's a Dremel?

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    Similar question..

    I bought some EL wire, but the inverter was broke. It only flashed once while turning it on. Unfortunately the inverter was covered with thick glue or something like that, and i couldn't get it out unharmed.

    Is it possible to wire up a new inverter? The only specs i could find are these:

    Input voltage: 9-14 (VDC)
    Input currency range: 45-70 (mA)
    Output frequency: 2.72-3.82 (KHz)
    Output voltage range: 82-150 (Vrms)

    http://www.sunbeamtech.com/products/products-el cables.htm - color is blue (ultra marine)

    Ordering a new one would be quite expansive as they are not for sale here...
     
    Last edited: 27 Mar 2003
    wicked, 27 Mar 2003
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  7. Sardien

    Sardien What's a Dremel?

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    How many mA???

    HI all,

    How many mA's must the inverter be for a EL backlight of a 20x2 LCD??

    Thanks.

    God Bless & Kind Regards,

    Richard
     
    Sardien, 27 Mar 2003
    #7
  8. bard

    bard Modding isn't what it used to be

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    Wicked, can't you just phone the supplier and tell them that the inverter was broken? They will get you a new one for free.
     
    bard, 27 Mar 2003
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