Block/cct diagram of bed side lighting timer

Discussion in 'General Electronics Chat' started by MIRINGU, Oct 7, 2008.

  1. MIRINGU

    Thread Starter Active Member

    Mar 18, 2007
    75
    0
    Hi,i would like to try the cctin this link(www.redcircuits.com/Page4.htm) but i wanted to analyse it first.
    is this block diagram correct?

    POWER SUPPLY>>RECTIFICATION>>>TIMER>>>COUNTER>>>COMPARATOR>>>OUTPUT.

    I've put the comparator coz of the NAND gate.
    Or may be is the cct correct n if not what modifications can be made?
    Pls help.
     
  2. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,176
    397
    The circuit seems correct, why not just buy one?
     
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