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Piezoelectric Transformers

Discussion in 'Electronic Design' started by Brick, May 7, 2006.

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  1. Brick

    Brick Guest

    Hey, I just found out about piezoelectric transformers after thinking
    of and researching the idea. I'm working on a project where it would be
    great to have one, but I'm not having much luck finding them. I spent
    an hour or two searching on google but the only sources I could find
    were dealing with quantities in the thousands. I suppose it's possible
    that I could salvage one from the ccfl driver in something with an lcd
    or request a sample, but I would prefer to find a reseller. Has anybody
    every dealt with these? Any insight into where you purchased from would
    be appreciated.

    Brick
     
  2. Pooh Bear

    Pooh Bear Guest

    Fairly predictably, Digikey has them.
    http://dkc3.digikey.com/PDF/T061/1713.pdf

    Also found a controller chip from TI in passing designed for the task of
    driving them, may be of interest.
    http://focus.ti.com/docs/prod/folders/print/ucc2976.html

    Graham
     
  3. Brick

    Brick Guest

    Thanks Pooh Bear. I had found that TI datasheet, but it wasn't exactly
    what I was looking for. I'm a little embarrassed that it's on digikey
    after I posted this question. I could've sworn that I searched all of
    the major distributors (mouser, digikey, jameco...) for "piezo
    transformer", "piezoelectric transformer", "piezo inverter", etc. I
    guess it was just a little too late at night for me. Maybe I was typing
    "piexo" ;-) (this is actually probably true, I tend to hit x instead of
    z's on laptop)). Thanks for pointing out what I missed. Cheers.
     
  4. Roy L. Fuchs

    Roy L. Fuchs Guest

    Thousands of dollars.
     
  5. Joerg

    Joerg Guest

    Hello Roy,

    Nah, you can get them under $10. But not quite under $5 like the CCFL
    supply transformers. Maybe some day.

    Regards, Joerg
     
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