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Blog#95 - stability

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mikeselectricstuff:
So how do you know if your circuit is on the edge of stability, just waiting to be tipped over the edge by a slight component tolerance, temperature change, or the Phase of the Moon...?
A neat tip from the excellent "Troubleshooting Analog Circuits" by the legendary Bob Pease is to "Bang on the circuit" - apply input and load transients. The way circuits respond to these can give useful clues about stability margin - if it bounces around befre settling after a transient, chances are you're near the cliff edge...

EEVblog:
and then there's that bugbear everyone like to pretend doesn't exist, temperature!

Dave.

saturation:
Better advise couldn't be made ...



A blow up of his prototyping style ..



I always wondered why so many other prototypes on photos have such nearly clipped leads whereas in reality most end up like this during development ...


--- Quote from: mikeselectricstuff on June 20, 2010, 09:55:10 am ---So how do you know if your circuit is on the edge of stability, just waiting to be tipped over the edge by a slight component tolerance, temperature change, or the Phase of the Moon...?
A neat tip from the excellent "Troubleshooting Analog Circuits" by the legendary Bob Pease is to "Bang on the circuit" - apply input and load transients. The way circuits respond to these can give useful clues about stability margin - if it bounces around befre settling after a transient, chances are you're near the cliff edge...


--- End quote ---

David:
Can anybody recommend me a good tutorial for LTSpice? I really should get around to learning it!

CDA:
Posted by Steve Bench, no less.
www.intactaudio.com/forum/viewtopic.php?t=596

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