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Thread: 4047 and l293b

  1. #1
    Junior Member Newbie
    Join Date
    Feb 2008
    Posts
    2

    Default 4047 and l293b

    hey can anyone tell me how to work with this 4047 to generate 38KHz frequency....also tell me are external diodes to be used for l293b.......please reply soon....it is urgent...

  2. #2
    Senior Member T-1000
    Join Date
    Jun 2007
    Location
    Jamshedpur/Bhubaneswar
    Posts
    421

    Default

    l293b? or l293d

    l293d does not require any external diode for protection because it has internal diode protection.



  3. #3

    Default

    How to generate 38KHz frequency with 4047

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