I do not think so, at least not according to what you writing. Let me remind you;
As you can see from previous post, my scope calculate ripple just fine. My "window" is not small it fit just perfect because ripple freq of switch power supply is 75kHz, not 100Hz.You may not see that optically but the O-scope calculates it from the whole window. If you choose too small window it just won't
I did not expect to actually have to explain what is ripple of switch power supply. I'm a little disappointed.
You did not see that in school, at least the basics?
https://www.youtube.com/watch?v=Edel3eduRj4
This guy measure ripple of switch power supply at 5us/div.
https://www.youtube.com/watch?v=pKXPqApOYfk
Once again, freq of ripple on switch power supply is same as freq of PWM oscillator. On ATX power supply is about 100kHz. You cant see that ripple and noise of switch power supply if time base is set at 20 ms/div. You missing information.
My question is simple but requires a concrete answer and link of relevant source; (see first post)