Digital Ic Amplifier

Discussion in 'The Projects Forum' started by blowouter, May 13, 2013.

  1. blowouter

    Thread Starter New Member

    Sep 28, 2012
    18
    1
    i have this circuit for a hand clap switch it uses UN buffered 4069 ic
    i have a little info about how this circuit works




    [​IMG]
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Basically, the top part amplifies the piezo. The 4017 counts the pulses, and the wire going to 4013 selects how many claps turn the relay on and off. All those diodes going to R7 make the counter reset after some time set by this resistor, so that it is ready for a new set of claps.
    Doesn´t the original circuit have some description?
     
  3. blowouter

    Thread Starter New Member

    Sep 28, 2012
    18
    1
    i see this circuit in epe 7-2005
     
Loading...