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  • in reply to: documentation optimization algorithms #6924
    Carsten
    Participant

      Ah, I saw there is a text in the F1 help. I suspect some of my questions are still valid.

      in reply to: MSVCP100.dll missing in octave folder #6921
      Carsten
      Participant

        and with octave-4.2.1-w32.zip

         

         

        Should the octave ubuntu version work at all? I tried last week, but got errors. But maybe its worth another try….

        • This reply was modified 3 years, 2 months ago by Carsten.
        in reply to: MSVCP100.dll missing in octave folder #6919
        Carsten
        Participant

          32bit doesn’t help:

          octave window in Rauschzahl.m freezes the same way.

          in “most simple example” also. (see attached png)

          in reply to: sweep including optimizing task #6916
          Carsten
          Participant

            Hi zhu.

            my example above was created on purpose to show the limitations of qs.

            I find your systematic test very interesting. I would have thought that the example has no local optima, thus being an easy example.

             

             

            in reply to: ac power source port impedance 75Ω #6911
            Carsten
            Participant

              Hi t_chiba,

              could you share a schematic or qucs project file, please?

              I did a quick comparison between qs and Dassault cst. Seems ok for me. See attached files.

              Also, there is only “AC Voltage source”, “AC current source” and “power source”

              Cheers

              Carsten

              in reply to: MSVCP100.dll missing in octave folder #6882
              Carsten
              Participant

                downloaded

                https://octave.org/download
                https://ftpmirror.gnu.org/octave/windows/octave-7.3.0-w64.zip

                copy complete folder mingw64 to <qucsstudio>/octave/ (backuped complete old octave folder)

                deleting /bin/octave.exe and /bin/octave.bat
                renaming /bin/octave_cli.exe to /bin/octave.exe

                executing example Rauschzahl.m now gives:

                octave is now able to plot text but crashes

                • This reply was modified 3 years, 2 months ago by QucsStudio.
                • This reply was modified 1 year, 9 months ago by maelh. Reason: Convert all remaining http links to https links
                in reply to: Set “Open dpl after sim” default: no #6884
                Carsten
                Participant

                  Indeed. I just tried.

                  BTW. The content of the fields “Data Display” and “Data set” are imho not intuitive

                  *.dpl seems to mean <schematic-name>.dpl

                  and in the case, that you described, the field stays just empty.

                  I don’t have a better solution though

                  • This reply was modified 1 year, 9 months ago by maelh. Reason: Convert all remaining http links to https links
                  in reply to: MSVCP100.dll missing in octave folder #6883
                  Carsten
                  Participant

                    I just posted a reply, but it does now show up here.

                    It contained weblink, which usually leads to “post is moderated …..”. This message was not shown now, though

                    in reply to: text typos/wording in Program / F1 help / etc. #6868
                    Carsten
                    Participant

                      probably good idea to copy the whole F1 help file to some text editor with some spell checker, microsoft word, gmail or something. That should find most of these typos.

                      in reply to: glitches w/ wine on ubuntu #6862
                      Carsten
                      Participant

                        Should I try it with the newest wine? I used 6.. Wine7 is already out.

                        FYI: Its not a problem with builtin wine dlls. Issues remain if I switch to native dlls.

                        in reply to: parameter sweep with >1 Parameters #6861
                        Carsten
                        Participant

                          Thank you Enki. Meanwhile, Michael sent me a preview executable, which solves the issue.

                          in reply to: sweep including optimizing task #6851
                          Carsten
                          Participant

                            So another donation? 🤔🙂

                            I guess questions like the “apply optimized…” could be implemented later. necessary would be e.g. to make xy.opt an array with the size of the parameter sweep. I just don’t know if this would mess up your code base. Somebody could also probably come up next with another still unsupported combination of tasks. And of course, these things can probably be done with matlab/octave “from the outside”.

                            Still, a scenario like above seems to me like a nice feature that could be useful for others. Me, however would be glad to have it.

                            in reply to: parameter sweep with >1 Parameters #6819
                            Carsten
                            Participant

                              ..schematic attached

                              • This reply was modified 3 years, 2 months ago by Carsten.
                              Attachments:
                              in reply to: parameter sweep with >1 Parameters #6816
                              Carsten
                              Participant

                                not quite.

                                In my design, there is no formula to calculate the component values from the sweep variable. It needs to be an arbitrary lookup table. You can do this with the “list” in the parameter sweep block. But only for one parameter.

                                I would like to do something like the one attached. But if I runt it, QS complains

                                Error in ‘Eqn2’: Wrong index for ‘c_vec’ in equation “c_vec[setup]”.
                                Error in ‘Eqn1’: Wrong index for ‘r_vec’ in equation “r_vec[setup]”.

                                • This reply was modified 3 years, 2 months ago by Carsten.
                                Carsten
                                Participant

                                  Something interesting about the lossy_inductor.sch:
                                  One can use the variable ‘freq’, which seems to be defined by QS itself.  But only, if the equation block has Export=no and if the resulting parameter is used in a “equation based component in frequency domain”
                                  Sadly I cannot find a reference to this ‘freq’ variable in the QS F1 help .

                                  You could define all components in the coilcraft model by a separate “equation based component in frequency domain”. Writing down the e.g. z parameters of a capacitor/inductor/resistor should be easy. But maybe its problematic in case you want to use the resulting inductor model without ground connection on either side.

                                  Coilcraft also offers touchstone file models. Maybe that’s an option.

                                  • This reply was modified 3 years, 2 months ago by Carsten.
                                Viewing 15 posts - 76 through 90 (of 97 total)