average value of as square wave

Status
Not open for further replies.
K

KingDarius6288

Junior Member level 2
Joined
May 10, 2019
Messages
24
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
210
Hi,

This might seem silly but I need a circuit to detect the average value of a square waveform (0-1V), with frequencies below 20KHz. The duty cycle is not 50%.

Thanks
 

Vmean=Vpeak*(thau/Period)

thau:duty cycle
 

Hi,

A low pass filter?

Klaus
 

I know the relationship. need a circuit.
 

Thanks, KlausST. Could you plz introduce a source that explains the design procedure?
 

Hi,

This is done all the time with power converters where the switch voltage is averaged out by the low-pass filter (output filter). You just need a low-pass filter that is 'good enough' to bring the ripple to an acceptable level.
 
Hi,

What "design procedure" ? ...for two parts: R, C.

R C low pass filters are explained million times in the internet, since it's probably the most used circuit.

Klaus
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…