A request for help post

[zhao xu]

Hello everyone, I apologize for asking a question here that may not be directly related to KiCAD development.

1. Could anyone please share an open-source dataset of circuit diagrams (preferably drawn using KiCAD, but diagrams drawn with other tools are also acceptable)?

2. When drawing circuit diagrams, are there any international standards or industry standards that should be followed?

I sincerely hope to receive responses from everyone.

Best wishes for a pleasant work experience.

[Marco Ciampa]

On the "Made with KiCad" page (https://www.kicad.org/made-with-kicad/)
you can find many examples of kicad made project. Most of these project
are open hardware so you can freely download the entire project and
take example from them.

But you are right, there should be at or least it would be nice to have
an indication to the standards somewhere. Of course these are not
mandatory and you are free to do whatever you want with KiCad.

--

Amike,
Marco Ciampa

[White Fox]

Hi guys

I'm just reading only to get an insight of KiCAD development (but do not
use KiCAD, that is why I do so), but just my 2 cent for point two of the
question:

There are two competiting circuit drawing standards, the ANSI standard
(see the one-line-zick-zack-resistor symbols) and the rest of the world
(draws a rectangle for the resistor symbol). But most companies draw
anything what looks kindly similar to the official symbol, the most
companies just ignore the official standard.
For example, there are some very old standard libraries for Altium, you
see very often. These library has a diode symbol with 90 degree angled
arrow triange, but the official symbol has a very smaller angle.

I would say that only the big companies have these standards (the
standards are very expensive), or companies where the customers insists
of standard symbols, but I would be not surprised if the engineers even
in this companies draw what they think fits right, and differ from the
standards. I see this wrong diode symbol often in datasheets and
application notes.
Or let's take the example of the operational amplifier symbol. Earlier,
decades ago (and I guess in ANSI standard until today), the official
symbol for an opa was a triangle. The rest-of-the-world-standard (at
least the DIN standard which normally refers to e.g. ISO) has for opa a
rectangle symbol since >20 years, but I don't remember ever seeing it in
the wild. I also use the old-fashion triangle.

Some years ago, I took the (expensive) standards and made some libraries
on my own. Theese standards, even though it is the latest version, are
very old, never updated since mostly twenty or thirty years, and often
surprisingly useless for modern electronical design.

greetings
Oliver Lenz

--
Das Nötige ist einfach und das Komplizierte unnötig
-Michail Kalaschnikow


As a german, please let me tell you: Germans are not rude.
If you invite a german to have lunch with you and he says simply 'No', be assured that he means:
«I'm so glad that you ask me to spend lunch time with you, I'm sure it would be a great time,
but unfortunately, I'm deeply sorry for that, I have a meeting with my boss and a few minutes later,
I promised our most important customer a call.
And moreover, I'm a little embarassed for that, I feel a bit sick today, maybe I'm not a good lunch companion today.
But I really hope so that we can share this great time another time.»

The reason for this kind of highly efficient conversation, which is typical for germans, is quite simple:
He knows that you are probably very busy with highly important business,
and it is a special kind of German courtesy not to want to waste your precious time.
So please, don't misunderstand short and precise communication as rowdyness.

[zhao xu]

Dear  Oliver Lenz，

Thank you very much for your patient responses. I now understand whether there are guiding standards. I would also like to inquire about question 1. Are there any publicly available datasets for circuit diagrams? Looking forward to your response.

Wish you a pleasant work!
best wishes，
xu zhao

[zhao xu]

I truly appreciate your patient responses.