Noob question. How to simulate, well... DC-powered analog circuits?

As I said, yet another noob’s question. Just for the learning courve, I’d love to create an astable flip flop with transistors. So I don’t need a sweep simulation or whatnot. Which topics did I miss so far? The voltage source should be a plain-and-simple DC source, and the simulation should be like static regarding parameters, just calculating along the timeline.

There is an example of an “astable” in this thread:

And a later follow up:

I don’t want to appear rude. But: tons “of examples are following here”. This is kind of like “look, and learn!” Yes, it’s true. But perhapts we should cut it into very thin slices, like, “Look, there is a resistor. You can add it like this: …, then there is a battery, you must add one because we need a power source, do it like this, and then modify its properties like that… You won’t see something exciting, because a battery and a resistor result in a pretty static circuit, but what you’ve learned so far is how to modify the components properties. Let’s do a summary for so far, then let’s continue…”

Start with:

I first checked the “getting started in KiCad” but that is very light on simulator stuff, the link above has a whole chapter about the basic stuff surrounding simulations.

Just to mention and make it clear: I am… reliable when it comes to the design of electrical and electronical circuits. I am a noob about scetching with KiCad. I am even better at programming. Talking about how to iterate a b-tree-based NoSQL database would not be very clever as a starter, would it? I guess you got my point :slight_smile:

And then you go on being rude anyway?

Who is you?
Talking to yourself?

image

But to go back to your opening post:

(Nearly) any simultaion has those, including the astable examples linked to above.

That is called a “transient” simulation (Don’t ask me why, weird name).

You probably missed a few more topics, but we don’t know what you missed until you tell us. It’s called a Catch-22.

But overall, we are much more inclined to put in some effort if we can see you put in some effort from your side. So start by reading the chapter on simulation in the schematic editor (Also available directly under “help” in the schematic editor) and then ask more direct questions.

Please have a look at my series of videos at https://www.youtube.com/@holger8105/videos .

@holger is the expert…

Know nothing about your circuit beyond Flip-Flop…

I threw this together in 3 minutes and was not concerned about reality.
I set some values and off and running…

Of course, you’ll need to learn how to set Simulation stuff (double-click an item and click Simulation Model (tab’s)

The file is attached…
Astabe_Multivibrator.zip (493.6 KB)

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