Block/cct diagram of bed side lighting timer

Thread Starter

MIRINGU

Joined Mar 18, 2007
75
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.
 
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