Closed ntavish closed 9 years ago
Can you put the schematic into a Gist, or somewhere we can have a look a it?
https://gist.github.com/ntavish/952c281f78be632c9f7a
This isn't on the same computer, and probably an older version(0.0.15-1.1 version for ubuntu 12.04), but result is the same.
I think it is bug on Qucs-library side. There are two models for LM317 in Qucs library. LM317K-2 is working as expected (2.5 V at output), LM317K-1 and LM337 give wrong result. @ntavish , You can use LM317K-2 to get proper result.
looking at the component netlist I have the impression that the ADJ and OUT connection were swapped; indeed when swapping them on the schematic the output voltage seems correct.
BTW @ra3xdh , the LM337 is a negative voltage regulator, if you apply -12 V at its input it works as expected.
Closed via #375.
Vout should be 2.5V, and it should settle above around Vin=5V
Parameter sweep on R2, with constant Vin also is not at all as expected.