Help pleaseeeeee in designing convertor

Discussion in 'The Projects Forum' started by AaraAbdas, Dec 21, 2012.

  1. AaraAbdas

    Thread Starter New Member

    Dec 11, 2012
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    I m trying to design buck-boost convertor controlled by PIC controller. PIC is simply generating a pulse for switching. I m unable to understand why the output is not coming right. for duty cycle I used the formula D= Vo/(Vo-Vi) and frequency of pulse is 21Khz.
     
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  2. spinnaker

    AAC Fanatic!

    Oct 29, 2009
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  3. kubeek

    AAC Fanatic!

    Sep 20, 2005
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    Maybe try using some base resistors for the transistors.
    Also saying waht you get and what you expected might help.
     
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