TGV
2013-08-08
Hi. I'm quite taken with QUCS. My knowledge of (analog) electronics was quite rusty, and it helped me understand some circuit, but now I'm wondering if it's possible to obtain the transfer function (or something similar) that QUCS probably computes when creating a frequency response plot. I have been drawing them up by hand, but by now the number of components has become so large that it's likely that I'm creating errors in doing so.
Thanks for this great program,
Theo
Frans
2013-08-08
Dear theo,
Qucs does not calculate the transfer function but it does output all data
points. If you export the dataset to octave you can do a least square fit
if you know the order of the function.
The octave script can be included in the project and executed after
simulation.
Frans
Op 8 aug. 2013 11:06 schreef "TGV" flwrd@users.sf.net het volgende:
Hi. I'm quite taken with QUCS. My knowledge of (analog) electronics was
quite rusty, and it helped me understand some circuit, but now I'm
wondering if it's possible to obtain the transfer function (or something
similar) that QUCS probably computes when creating a frequency response
plot. I have been drawing them up by hand, but by now the number of
components has become so large that it's likely that I'm creating errors in
doing so.Thanks for this great program,
Theo
Obtain transfer function from QUCS?https://sourceforge.net/p/qucs/discussion/311050/thread/d16aecf0/?limit=25#cf83
Sent from sourceforge.net because you indicated interest in
https://sourceforge.net/p/qucs/discussion/311050/To unsubscribe from further messages, please visit
https://sourceforge.net/auth/subscriptions/
Richard C
2013-08-08
Bear in mind also that you can't really get a transfer function for a
nonlinear system, so if you have any nonlinear circuit components there
probably isn't a transfer function anyway. At the very least it will
probably depend on the specific circuit.
Frans' fitting approach might be just as good in this case.
Richard
TGV
2013-08-08
Ok, I understand. Thanks!