Negative feedback becomes positive feedback when the delay of the feedback path is approximately the half period of your signal (which corresponds to a phase shift by 180°). So you lowpass your feedback pass so it only contains frequencies well below that point.
Yes, filter HF so that the circuit doesn't oscillate. https://en.m.wikipedia.org/wiki/Frequency_compensation …
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.