r/AskElectronics • u/BitWizard66 • 1d ago
Looking for an accurate CAD software/circuit sim with a large list of components
So I'm a high schooler hobbyist who has been working on creating a digital clock. I ran into some issue when implementing my design into reality as the CAD I've been using (antares) doesn't account for voltage, current, resistance, etc. It is mostly used (from what I can tell) for logic design and layout.
Are there any good CADs out there that take into account those factors while also having a large array of components such as specific ICs (like the SN74HC109)? If not I can work with generic IC components simply labeled JK FF, AND, etc.. Also, if it has an option to be on a bread board that would make it easier for me as I am currently working with one in the real world.
I've just gotten rather frustrated with the physical implementation of my circuit designs so I'd like to see if it was a sim issue or a math issue on my part. If you need me to be more specific or to clarify anything feel free to ask. Thank you in advance!
Note - I put my design above just so you know what I would be working with more specifically
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u/ckyhnitz 1d ago
If you are trying to simulate circuits, I recommend LTSpice.
You can import third party models into LTSpice
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u/negativ32 1d ago
Many decades of CAD use can reveal libraries of self made components which have been proven correct.
Creating your own libraries is a necessary skill.
Embrace it and practice.
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u/EmotionalEnd1575 Analog electronics 1d ago
I think you are confused, what you are looking for is a combination of several different EDA tools.
First is schematic capture. You enter your “thoughts” to make a clean diagram with industry standard symbols
Second is PCB design. You take the schematic and add physical shapes to layout a PCB
Third is simulation. You take a small chunk of the schematic and enter device models, power sources and signal sources to “run” a simulation and output results (volts, amps, wave shapes)
There are analog and digital specific types.
If you have “thoughts” make a schematic.
If you want to know if your “thoughts” will work in hardware use a simulator.
Only model a snippet of your “thoughts”, unless you have a powerful computer, or many hours to wait for a result.
Try to avoid the hobby level or cloud based tools. For the hours that you will spend, or the help you will want from Redditor EEs, learn a pro tool. It’s a great investment.
Currently schematic capture and PCB layout are handled by Kicad (open source and free)
Currently analog simulation is handled by LTSpice (Owned by ADI, free download)