Hi Mike, When you create the symbol following your (brilliantly informative) tutorial - is there a way to save the component as a library part for use in other designs ?
I rely on the Analog/Linear/Maxim catalog in LTSpice to quickly compare and contrast op amps at design or substitution time. It sure would be nice to have native access to LTSpice assets including opening existing schematics.
Hi Mike - What models are supported on the import..... As there seems to be lots of model types available from different vendors - Spice, Pspice, Tina-Ti Spice, LTSpice... etc?
Hi, I would like the qspice program but have problems to start. I would use an n mosfet und p mosfet to model a simple Amp, but I found no model fet which work... 😢
7:40 I am unable to delete the box generated by Qspice, when I go into the symbol editor and paste, I tried pressing delete by the rectangular box is still there.
It is a little messy to just get the old time 741 op-amp. I want to bring in the Vishay IL300 optocoupler and I think the 741 demo will work? 🥳 Thank you.
When I pasted the symbol and try to run the simulation again I got an error: Unknown subcircuit. Does anyone know what may had got wrong? Could it be because I added text to symbols instead of comments? Yep. I made another symbol using comments and it worked. Why if we text it doesn't work?
Most of us have many LTspice schematics (.asc files), and huge libraries of subckts, models and associated symbol files. If these could be easily imported into QSPICE with no additional work, then everyone would probably switch to QSPICE! I tried to import a few of my components, but immediately had a problem with subckts that contain other subckt references - I could not make that work. So until then, I will probably stay with LTspice, which is sad because I like the more modern QSPICE UI. P.S. I suspect there are many people (like me) who would be happy to develop the code to do this :-)
Hello professor. Great video and very informative. I’m trying to import the model of an MOV. However, this model contains 2 sub circuit models inside it. That said, how would I import this model? Please advise. Thanks.
Quick update. I am now able to import the MOV model containing the multiple.subckt sections. However, when simulating this MOV model in my circuit, I get a “time step too small error” once the MOV clamp voltage is reached. I had the same issue using LTSpice. The way I got around that error was to limit the time step to 1 nanosecond. This makes the simulation very slow though. My question is, is there a better way to get around this problem in QSPICE?
Got information about you in my newsletter and tried quickly the software- oh, damn nice! Is it possible to get offline installer? Best regards from Germany, Sebastian
It is not. If anything it can be further simplified and streamlined and ergonimized. The only drawback is the MFC GUI toolkit used which is windows-only. Something like wxWidgets (used in KiCAD) would not have required the code to change by much from MFC but would have provided much-needed cross platform support. Especially Linux.
@@modallas2 Again, perhaps opensource it so people can contribute in GUI development and make it cross platform. I would rather stick with spice or ltspice because the gui is less than ltspice's
Hi Mike, When you create the symbol following your (brilliantly informative) tutorial - is there a way to save the component as a library part for use in other designs ?
nice .... but can it import LTspice schematics?
I rely on the Analog/Linear/Maxim catalog in LTSpice to quickly compare and contrast op amps at design or substitution time. It sure would be nice to have native access to LTSpice assets including opening existing schematics.
What a great simulator!!!! Thanks for your hard work and contribution. Great video presentation also, ;)
Hi Mike - What models are supported on the import..... As there seems to be lots of model types available from different vendors - Spice, Pspice, Tina-Ti Spice, LTSpice... etc?
I do love the simplicity of it.
Excellent graphical user interface and simulator! Thanks, Mike
is it possible to import bsim4 models into transistors for analog design?
That’s a really modern thing. I’m happy I met it today.
Thanks for the great creation, Mike. I love using the tool!
Hi, I would like the qspice program but have problems to start. I would use an n mosfet und p mosfet to model a simple Amp, but I found no model fet which work... 😢
is there a cursor window to view the voltage while dragging it over a graph line.
I am just impressed, Mike. Thanks.
7:40 I am unable to delete the box generated by Qspice, when I go into the symbol editor and paste, I tried pressing delete by the rectangular box is still there.
Can tube models be imported, and if so how would symbol editor be used to create it
It is a little messy to just get the old time 741 op-amp. I want to bring in the Vishay IL300 optocoupler and I think the 741 demo will work? 🥳 Thank you.
What is the 3rd party model is proprietary file (encrypted) can qspice handle it?
May I ask if the spice models availablr third party website still working?
How can I simulate a transformer in QSPICE?
Thanks. The more I learn about this, the more I like it.
Following your video i created the symbol and after copying and running it. I get the error 'Fatal error: Error: no such subcircuit: lmx324_s
'
When I pasted the symbol and try to run the simulation again I got an error: Unknown subcircuit. Does anyone know what may had got wrong? Could it be because I added text to symbols instead of comments?
Yep. I made another symbol using comments and it worked. Why if we text it doesn't work?
Great looks. Will try out asap.
Greetings from Münster, Germany
Most of us have many LTspice schematics (.asc files), and huge libraries of subckts, models and associated symbol files. If these could be easily imported into QSPICE with no additional work, then everyone would probably switch to QSPICE! I tried to import a few of my components, but immediately had a problem with subckts that contain other subckt references - I could not make that work. So until then, I will probably stay with LTspice, which is sad because I like the more modern QSPICE UI.
P.S. I suspect there are many people (like me) who would be happy to develop the code to do this :-)
Hello professor. Great video and very informative. I’m trying to import the model of an MOV. However, this model contains 2 sub circuit models inside it. That said, how would I import this model? Please advise. Thanks.
Quick update. I am now able to import the MOV model containing the multiple.subckt sections. However, when simulating this MOV model in my circuit, I get a “time step too small error” once the MOV clamp voltage is reached. I had the same issue using LTSpice. The way I got around that error was to limit the time step to 1 nanosecond. This makes the simulation very slow though. My question is, is there a better way to get around this problem in QSPICE?
8:40 how a user suppose to know that clicking the middle dot converts the pin name into a square? The app is full of such easter eggs
I don't see the red dots in my QSPICE (build oct 18 2024). Maybe they removed them in recent versions.
Hallo Sir/ Thank you for this video. Do you offer a start course for QSPICE
Well done, thank you.
Got information about you in my newsletter and tried quickly the software- oh, damn nice! Is it possible to get offline installer?
Best regards from Germany,
Sebastian
Germans celebrate QSPICE. Grüße aus Hannover! 😉
Welp, back to Circuitlab I guess.
I Don't Understand About Third Party
The UI is very primitive. Why don't you opensource it so people can make it better?
It is not. If anything it can be further simplified and streamlined and ergonimized. The only drawback is the MFC GUI toolkit used which is windows-only. Something like wxWidgets (used in KiCAD) would not have required the code to change by much from MFC but would have provided much-needed cross platform support. Especially Linux.
@@modallas2 Again, perhaps opensource it so people can contribute in GUI development and make it cross platform. I would rather stick with spice or ltspice because the gui is less than ltspice's