Simulation with KiCad 5 : Simulate the LM 555 Programmable Timer
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- Опубликовано: 2 окт 2024
- This video shows how to simulate the LM 555 with KiCad 5. The LM555 is use in astable mode and its transient analysis is simulated.
The video explains how to find spice models in the Cadence pSpice software and use them in KiCad.
This is my first video in english. My english is bad but I hope this video will help some people arround the world to get a good simulation with KiCad.
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Thanks for this. It's a pity that adding the libraries is so complicated, but at least you do get them for free, so can't complain!
I'm working with 555 timers, so knowing where to find libraries is very helpful.
Merci beaucoup
a bientot!
Thanks for this video. I think it will be very useful when I try to simulate the 555.
Very helpful. Thank you for posting. I hope you do more videos in English -it is really appreciated.
Good video I learned a lot. Your English is more than good enough, and the only thing I really noticed is that the normal way of saying 555 is five five five not five hundred fifty five.
If you were to make another video, I would like to request more about finding libraries for spice, it would be nice not to have to install another program just to get a some data.
Hi Charles,
Thanks for your comments. Finding libraries for spice is more difficult than I fought because a lot of spice models on the internet don't work with KiCad.
I will work on your suggestion for a future video in english. This will be the case for my next video in french : simulation of the commutation of a relay (modelising by a inductor in serial with a resistor) by a bipolar transistor. Transistor and diode models are searching directly on the Web.
Eric
Like you, I say five five five, but Dave Jones in Austrialia (EEVBlog) says triple-five, so it isn't universal.
I was thinking of us kicad for circuit design and PCB but this looks like kicad isn't good for simulation. Microcap which now is free can use many different SPICE models.
Thank you. I now see I have to find models to do simulation. That is not fun but doable.
Excellent video, thank you :) As others have mentioned, finding a good source for spice models would be nice.
Great video, thanks a lot.
Thanks for making this video!
Cool video; thanks. I saw this on another video: you can draw wires right over the top of all the components, and the wires will automatically connect to the nodes (without creating a short circuit). It is much faster. To test, add a few components in a series and then draw a single wire through them all.
Thanks for you comment. Cross connection is a new feature from KiCad 5.1.x That wasn't present in the earlier, 5.0 version.
Merci beaucoup pour ce cours et cette vidéo en directe!. Je suis retourné à " l'école à 65 ans! "
J'ai bien aimé le répertoire toto pour les essais de programme
J'ai cru en partie reconnaitre en partie les directives de LTSPICE
Cela pourras me servir à l'avenir
Cordialement Gérard
Bonjour. Les directives sont la plupart du temps basées sur spice même s'il y a des variantes.
Beaucoup sont manquantes sur KiCad. Pour l'heure, ce n'est pas une solution très satisfaisante.
Cordialement,
Eric
Your English is more than adequate, your presentation clear, and as a bonus I have just learned from you that KiCAD 5 can do pSpice simulation! Not bad at all for beginning of the week :-)
Thank you and keep a good work, will take a look at your other videos.
Thanks a lot for your comment. You can watch my videos in french with automatic subtitles. My next videos in english will be a full tutorial for KiCad 5, from schematic to gerber files generations.
Regards.
Eric
Well done. A few remarks: The resistor with a value of 3k3 will be interpreted as 3k in the simulation. You used the subcircuit description of a CMOS 555, not the one of the LM555 which is a bipolar one, you can use the 555B subcircuit. Note that in that case you don't need the uic. But you have to set your step ceiling parameter to a proper value e.g. 1us if you want an more accurate result: i.e. .tran 1u 10m 9m 1u
Hello Hugo,
thanks for your comment and clarification about UIC directive. Spice model compatibilities with ngspice are difficult issues to solve. That's why I used the CMOS version and also why I tend to use a gateway from KiCad to LTspice to simulate from KiCad.
@@EricPeronnin can you please elaborate on the gateway from kicad to ltspice? does it mean it's possible to use ltspice as the simulation engine? how can it be done?
Thank you for the great video :D
Thanks for the video. I had a lot of questions about the simulator, and you answered all of them here. In the future it might be nice if you edited the video to speed up through the parts where you're just drawing the circuit, as these parts aren't crucial. Just a thought. :)
Thanks a lot for your message.
Excellent video. Subbed immediately, Thank you!!
Eric muy buen video , no se mucho de ingles porque yo hablo español pero aun asi te entendi los pasos para simular en kicad .si es posible que lo hagas en español te lo agradeceria mucho ya que apenas estoy aprendiendo a usar kicad y no he logrado la simulacion ..gracias
Hi Eric, thank you very much. It is much appreciated. Your English is very clear and understandable. Please make more.
How do you I simulate my board design if it includes a microntroller? I disabled it. I added every model, it still doesn't want to simulate...
Hi Steve. KiCad simulation is based an ngspice which can't simulate a microcontroller. There seems to be an add-on called MCUsim to do that : trac.mcusim.org/
I never tried it.
@@EricPeronnin I only want to simulate the power circuit. I marked the MCU as disabled but this piece of software keeps warning
awsome video...just one thing i had trouble understanding what you are saying and reverse the video to understand the words
Now you can understand why this is my only one in english ;-)
Excellent video. Your English is much better than our French. Too bad only a limited number of views and likes.
Thank you Tom. Kicad simulation tool is poor. Since this vidéo, I've made a Kicad to LTspice interface and I will present it soon in english.
@@EricPeronnin That would be great! Every tutorial I find for Kicad Spice involves downloading spice models from elsewhere ... not an acceptable solution, I hope they catch up. I found that you speak slowly, but the video settings has an option to speed up the audio, and 1.25X was still clear.
Thanks. Excellent
I'm amazed that kicad is so poor in terms of simulation. Awesome tutorial nonetheless :)
Thanks. And yes, Kicad is à poor simulation tool.
Use QUCS then...
Kicad is _not_ a simulator, what is taught here is using the schematic entry package of KiCAD to do a simulation with ngspice. Ngspice is a top notch free software simulator.
Thank for your video Eric , your english is not really good but the explain are very good. Are you a kicad fan???
Hello Véronique.
Its just an attempt but I know that my english is very bad. Shame on me because my wife is university professor and I refused she reviews my video.
Am I a kicad fan ? Yes, of course. It's a very good software and it's free. I teach electrical engineering at the Institute of technology of Nantes and we choose KiCad as our electronic CAD software. Previousy, I was at the Institute of technology of Chateauroux and choosed KiCad after 20 years with Orcad.
Thanks a lot for your comment :-) .
Eric
@@EricPeronnin et bien moi, I think your english is tout à fait correct and I have presque all understood ! ;)
@@patrickfle4485 Merci Patrick. J'ai vraiment un public bienveillant. Ne pas être bon en anglais est un regret et avec le temps que je consacre à mes vidéos, je n'aurais pas le temps de toutes façons de progresser (et pourtant, ma femme est Professeur des Universités en linguistique anglaise donc il y aurait moyen).
Dommage car je pense que je ferai certainement 10 fois plus de vues avec une version anglophone de mes vidéos.
@@EricPeronnin oui, mais les anglophones ont la chance d'avoir déjà pléthore de chaînes et sites sur ces sujets assez techniques et beaucoup moins pour les francophones qui sont à coup sûr très demandeurs... Thanks !
Enjoyed this video immensely. Looking forward to more!
Top juste ce qu'il faut pour se lancer ! J'espere qu'il y en aura d'autres ! Merci
Bonjour. Cette vidéo était une tentative en anglais mais je suis vraiment trop médiocre dans la langue de Shakespeare pour en faire d'autres pour le moment. Il y en a d'autres en français regroupées sous la playliste suivante : ruclips.net/video/aehIYiFCrQU/видео.html
D'autres sont à venir en particulier pour montrer comment simuler avec un modèle d'amplificateur opérationnel parfait.
Eric
Hi sır. Firstly thanks for this video. Will you create Smps circuit simulation on KiCAD?
Congratulations, I liked very much your explanation. My English is not very well too.
Thanks 😊
I don't like having 20 ground connections. I usually go with one and connect everything by wires. But I guess this is more clean, although it makes it a little bit harder to track what is connected to where.
Hi. Yes, this is more clean like this. Using wires in excess creates schematics with a poor readability. Power symbols must always be used.
Eric
Thanks
Thanks !!!
it's better to speak in french language because you've an accent
What? no... that makes no sense. His English is better than some native speakers I've heard...