duty cycle of a ramp generator measurement

Thread Starter

sean96

Joined Nov 5, 2018
25
Capture1111111.PNG duty cycle schmit.PNG does anyone have experience with using the tektronix oscilloscoop in multisim to measure duty cycle?? in my case i want to measure the duty cycle of the output of an schmitt trigger. the circuit is above
 

danadak

Joined Mar 10, 2018
4,057
Duty Cycle, in %, = [ Th / ( Tl + Th ) ] * 100, one cycle/period of waveform.

So measure high time, low, time, and plug into equation.

Many scopes do the measurement directly from a measurement menu selection.


Regards, Dana.
 

dendad

Joined Feb 20, 2016
3,983
It will be easier to expand the display to show just one complete cycle then you can get a better measurement of the Time High and Time Low for your calculations.
The scope looks to display the Positive Width, so see if you can get the negative Width too.
 

Thread Starter

sean96

Joined Nov 5, 2018
25
Duty Cycle, in %, = [ Th / ( Tl + Th ) ] * 100, one cycle/period of waveform.

So measure high time, low, time, and plug into equation.

Many scopes do the measurement directly from a measurement menu selection.


Regards, Dana.
like dendad said the scope displays the positive width cant i use that to calculate duty cycle with the equation D= (pw(positive witdh)/T)*%?
 

Thread Starter

sean96

Joined Nov 5, 2018
25
It will be easier to expand the display to show just one complete cycle then you can get a better measurement of the Time High and Time Low for your calculations.
The scope looks to display the Positive Width, so see if you can get the negative Width too.
yes i can get the negative width too
 
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