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Thread: Driver for CCFL for book light

  1. #1
    Flashaholic*
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    Default Driver for CCFL for book light

    I'm looking to make a book light using a CCFL (cold cathode fluorescent light), and running it from 2-3 Li-Ion's.

    I found the driver already, but I can't seem to find anyone who supplies them.

    http://www.monolithicpower.com/Lists...Form.aspx?ID=4

    I just need one or two drivers (I have 2 CCFL tubes. 1 short, and 1 long).

    If anyone knows of any other driver that will work for 3-12 volts, feel free to mention it.

    ~Brian

  2. #2
    *Flashaholic*
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    Default Re: Driver for CCFL for book light


  3. #3
    Flashaholic*
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    Default Re: Driver for CCFL for book light

    D'oh! I totally forgot about looking for the driver units themselves, rather than the driver IC's.

    Thanks

    ~Brian

  4. #4

    Default Re: Driver for CCFL for book light

    You could get a broken computer scanner at a garage sale and swipe the driver from it. I got a 12v one from one of them.
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  5. #5

    Default Re: Driver for CCFL for book light

    Quote Originally Posted by bstrickler View Post
    D'oh! I totally forgot about looking for the driver units themselves, rather than the driver IC's.

    Thanks

    ~Brian
    There really isnt much that would require an IC for a simple one A transformer with an extra winding for driving a royer oscilator would be all you need.
    digikey stocks these, http://www.cooperindustries.com/cont...ansformers.pdf

    The driver chip you linked would be more suited for a display backlight, scanner etc. For an illumination device, good selection of passives to go with the royer, and maybe a comparitor as a low voltage cutout to keep it from over discharging Li-Ion batteries.

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