From one of my previous articles and of course your own knowledge you are familiar by now, that how we receive all our audio and video signals and how we watch all our transmissions| | Useful Note for students of electronics and communication eng.
The summed Audio and triangle waves are used as the input to the comparator, the output which will be generated is a square wave having a duty cycle corresponding to the time period that the triangle wave is ‘positive with respect to the reference level’.
Hopefully, this article will help University students who are doing bachelor or masters in electronics and communication eng.