Thanks to the professor for bringing QSPICE’s new teaching video. I’m very lucky to be able to study with the professor all the time.

@MarcosAlonsoElectronics

5 ай бұрын

Thank you!

Thank you so much dear Professor, Kindly upload more videos on Qspice.

@MarcosAlonsoElectronics

4 ай бұрын

Sure, thanks!

Dear Professor. Your videos are wonderful, and this subject, both from Ltspice and Qspice, turns your video as gold. I wish you success in this channel.

@MarcosAlonsoElectronics

5 ай бұрын

Thank you very much for your comment!

Thank you for sharing.

@MarcosAlonsoElectronics

5 ай бұрын

Thanks!

Good morning Professor Alonso. Thank for introducing to us this new simulation tool.

@MarcosAlonsoElectronics

5 ай бұрын

Thanks for watching the channel and for your support!

Simulation files are available here: github.com/marcosalonsoelectronics/Qspice-4

Nice video, as always. BTW, the new LTspice has now an intrinsic FRA tool.

@MarcosAlonsoElectronics

5 ай бұрын

Thanks for your comment and information. We will be using both simulators in this channel. My plan is to use Qspice to study the dynamic response of digitally controlled dc-dc converters in next videos

Just explored Qspice; however, when I tried to export the .csv file in MATLAB and subsequently attempted to plot it, I encountered numerous challenges. In LTSpice, the process was much simpler: I could save the plot data (Bode plot data) in .txt format, import it into MATLAB, and then compare it with other plots. Dear professor, could you please enlighten me on this?

@MarcosAlonsoElectronics

4 ай бұрын

Hello, I have just taken a look and I do not see any especial difficulty. From Qspice you can export into .csv format. This is a text file where the data points are on the same line separated by commas. This is similar to the .txt file from LTspice, only that the .txt file has no commas between data. If the commas bother you, just edit the file with Notepad and use Edit->Replace and replace all the commas by blank spaces. You will get the same format as from LTspice. This can be a good topic for a Tips&Tricks video. Thanks

What is the function of .options reltol=10m?

@MarcosAlonsoElectronics

5 ай бұрын

reltol is the relative error tolerance. The lower the value, the higher the accuracy of each iteration. The default value is 1m (0.1%). You can decrease it to get more accurate results but with a longer simulation time. If your simulation is accurate enough you can increase it to get a faster simulation.

respected sir I need a pwm genration with variable decreasing frequency (4,6,8,12,18,24,36,72 micro seconds ) with fixed 1micro seconds as fixed off time sir to control buck converter sir how should i do it sir in matlab ?

@MarcosAlonsoElectronics

5 ай бұрын

In this video you can get some hint about how to do this: kzread.info/dash/bejne/qYmcktGbn7bfk9Y.html

@thavakkodi6290

5 ай бұрын

ok sir thank u ❤@@MarcosAlonsoElectronics