Hi there!
I just built a small adjustable LM317/337 PSU and forgot the output capacitors. The circuit didn't work at all as intended, with astonishing jumps and breaks in the output voltage. After inserting those caps it worked like a charm, still does.
But that would be my question: I read and heard about unwanted oscillations in a circuit. But I don't really understand it. What is meant if it is said that a circuit oscillates? And I don't mean signal generators or intended oscillators.
Where do those oscillations come from? What does it mean if an opamp oscillates?
Regards
Christian
I just built a small adjustable LM317/337 PSU and forgot the output capacitors. The circuit didn't work at all as intended, with astonishing jumps and breaks in the output voltage. After inserting those caps it worked like a charm, still does.
But that would be my question: I read and heard about unwanted oscillations in a circuit. But I don't really understand it. What is meant if it is said that a circuit oscillates? And I don't mean signal generators or intended oscillators.
Where do those oscillations come from? What does it mean if an opamp oscillates?
Regards
Christian