Content originally posted in LPCWare by rodri on Wed Apr 27 10:40:53 MST 2016
Hi,
I'm sampling a ramp signal with 50% of simmetry, but when I pass it to the PC and plot it with matlab I observe a rare signal.
(attached the images)
As you can see the triangular shape (that corresponds to the one I'm sampling) seems to be the envelope of a faster ramp. This second ramp has a positive pendent when the triangular signal is increasing the value, and negative when the triangular is going low.
Anybody have an idea about what is hapening?
thanks in advance
Regards,