How to make a clock from a NOT gate?

[bizoo]

have any one made a clock out of a not gate, by simply connecting input to output

 

[sapper]

Re: clock from NOT gate

this is a hot topic for reserach these days, search google, i dont think ne one here have much clue abt it

 

[bizoo]

Re: clock from NOT gate

ne links will be welcomed

 

[electronics_kumar]

Re: clock from NOT gate

yes of course a NOT can work as a clock generator. what is your doubt bizoo

 

[hani salehi]

Re: clock from NOT gate

Hi ,

here is a Square oscillator ,

 

[bizoo]

Re: clock from NOT gate

thanks but can u tell me , wat will be the frequency of this clock which u have uploaded in this thread

 

[hani salehi]

Re: clock from NOT gate

Hi ,
the frequency of oscillation depends on the Threshold voltage of the NOT gates,
for high frequency you must use 'HCT' and 'F' gates ( 74f04)

the circuit works so easily :
1- assume that Vx=1 therefore Vz=Vy=0
because Vz < Vth => C capacitor charging until the Vz voltage reaches Vth of NOT gate,
( Vth = Vz )
2- when Vz= Vth => It changes the state and Vx = 0 , Vy=Vz =1
therefore c is decharging until Vz <Vth_low => Vx=1

and ......