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Electronics => Electronics => Topic started by: dempuo on May 22, 2008, 07:44:37 AM

Title: How to built a counter circuit using jk flip-flop and 555 timer.
Post by: dempuo on May 22, 2008, 07:44:37 AM
hello,i am shazril from ungku omar polytechnic,perak,malaysia.i just want to ask how to built a counter circuit count 12,10,8,6 and 4 and back to 12 using jk flipflop and 555 timer ??

thank you.
Title: Re: How to built a counter circuit using jk flip-flop and 555 timer.
Post by: benji on May 22, 2008, 08:42:35 AM
use the 555 as the first jk clock source, as long as your biggest num is 12 then you need 4 jks
cuz 12 == 1100
the first jk out clocks the second jk and so on if you want to count regularly,,
if now you have to figure out how to do clocking.
Title: Re: How to built a counter circuit using jk flip-flop and 555 timer.
Post by: Admin on May 25, 2008, 03:11:13 PM
You could just buy a counter IC ;D