Help me to analyze this control circuit

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FvM said:
You have added a missing connection, but the overall circuit still makes no sense to me.
Click to expand...

Thnks Fvm..

Nw my project is completed upto 75%. i wana to modify my circuit,

can i replace CD4011 NAND GATE IC by 7408 AND gate ic??

In this circuit 4 nand gate ic is used.
1 signal(pulse ) from lm339 comparator is nanded with 33khz.
again nanded.to get AND logic

Its look complex...

If i use 7408 AND gate ic ,

nly 2 IC Needed.looks simple.

Regards

mobin
 

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