Increasing frequency pulse generator

Discussion in 'The Projects Forum' started by JeremyCondie, Jan 5, 2015.

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  1. JeremyCondie

    Thread Starter New Member

    Jan 5, 2015
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    Hi,

    I have built a pulse wave circuit (pulses of equal duration) using a quad nand gate. I can set the duration and pulse length and at the moment I have five flashes before the LED output remains on.

    I would prefer to have variable pulse widths whose frequency starts slowly and then steadily increases before the LED remains on. e.g. pulllllllse, pulllse, pulse, on ......

    Any help is much appreciated.
     
  2. bertus

    Administrator

    Apr 5, 2008
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