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AutoDesk Releases An Electronics Simulator Called 123D Circuits

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Re: AutoDesk Releases An Electronics Simulator Called 123D Circuits

#3
I wonder if it models the terrible parasitics of a real breadboard.

I imagine it would be really annoying for beginners to build an IR receiver (or whatever) with the software, have it working perfectly, then try to build it on a real breadboard only to spend hours frustratingly trying to figure out why the circuit is oscillating.

Re: AutoDesk Releases An Electronics Simulator Called 123D Circuits

#4
post #3

I wonder if it models the terrible parasitics of a real breadboard. I imagine it would be really annoying for beginners to build an IR receiver (or whatever) with the software, have it working perfectly, then try to build it on a real breadboard only to spend hours frustratingly trying to figure out why the circuit is oscillating.

Is there any software out there that includes these real-world models into the design side?

Re: AutoDesk Releases An Electronics Simulator Called 123D Circuits

#5
post #2

I guess I'm not seeing the advantage over existing software. Unless there are some tie-ins with their other 123D software to, say, automatically create a hardware enclosure from a schematic.

We have that! Just push the "generate enclosure" button in the circuit details page.

Re: AutoDesk Releases An Electronics Simulator Called 123D Circuits

#6
post #3

I wonder if it models the terrible parasitics of a real breadboard. I imagine it would be really annoying for beginners to build an IR receiver (or whatever) with the software, have it working perfectly, then try to build it on a real breadboard only to spend hours frustratingly trying to figure out why the circuit is oscillating.

You can always measure the capacitance between each row. Hell of a lot better than building a full circuit first, just to find out your BB sucks.

Re: AutoDesk Releases An Electronics Simulator Called 123D Circuits

#7
post #6
post #3

I wonder if it models the terrible parasitics of a real breadboard. I imagine it would be really annoying for beginners to build an IR receiver (or whatever) with the software, have it working perfectly, then try to build it on a real breadboard only to spend hours frustratingly trying to figure out why the circuit is oscillating.

You can always measure the capacitance between each row. Hell of a lot better than building a full circuit first, just to find out your BB sucks.

That usually doesn't help as a large source of the problematic parasitics is contact between the part's leads and the 'grippers' inside the breadboard. Lead diameter, corrosion, 'gripper' spring strength, etc all come into play there.

Re: AutoDesk Releases An Electronics Simulator Called 123D Circuits

#8
How do I add a voltage other than a 9V battery?

What are the current alternatives to this? I'm looking to build an LED driver (possible IC candidates are Linear LT3477, TI TPS63020 and some other TI / Linear chips). I'd kill for a software that would simulate any chips (or even just a crude approximation of them).

Re: AutoDesk Releases An Electronics Simulator Called 123D Circuits

#9
post #3

I wonder if it models the terrible parasitics of a real breadboard. I imagine it would be really annoying for beginners to build an IR receiver (or whatever) with the software, have it working perfectly, then try to build it on a real breadboard only to spend hours frustratingly trying to figure out why the circuit is oscillating.

Is there any software out there that includes these real-world models into the design side?

Yes, but its usually not worth the time to include all parasitics in a model until you get to very high frequency work.

Professional circuit/PCB designers already know roughly what the issues are going to be and can order of magnitude approximate well enough to know if its worth fully modeling or not. For novices, just understanding what the parasitics are is hard enough, much less adding them to a circuit that is often already fairly complicated for them. Most lower frequency stuff that novices will be building should not have an issue with parasitics, but pushin breadboards are just awful and the most common hobbyist op amps have plenty high enough gain-bandwidth-products to bring them into play.

Re: AutoDesk Releases An Electronics Simulator Called 123D Circuits

#10
I'd kill for an app like this that would help teach you electronics at the same time. I've wanted to start doing some robotics stuff, but haven't found much in terms of useful learning resources outside of just buying a full university textbook and hoping for the best.
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