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A comment on Towards a “PCB Drone” – Making a PCB Motor which reaches 30k RPM [video]. Parent comment

Re:Towards a “PCB Drone” – Making a PCB Motor which reaches ... by narrator on Sunday June 25, 2023 @06:29PM (#36473317)
Analog engineering is really difficult because you need to solve differential equations that Wolfram is unable to solve. Most designs were made by very smart people in the 50s at RCA as far as I can tell. Please tell me about how wrong I am. I admit the analog circuit engineering world has looked totally unapproachable to me even as a reasonably competent working computer scientist.
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Re:Towards a “PCB Drone” – Making a PCB Motor which reaches ... by adgjlsfhk1 on Monday June 26, 2023 @12:11AM (#36475653)
the good news is you don't need exact solutions and there are pretty robust tools for numerical diffeq solving now. the best are Julia's ecosystem, but sundials is pretty decent also.
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Re:Towards a “PCB Drone” – Making a PCB Motor which reaches ... by CamperBob2 on Monday June 26, 2023 @02:21AM (#36476356)
"LTSpice is all you need," in the vernacular of the times.
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Re:Towards a “PCB Drone” – Making a PCB Motor which reaches ... by mindentropy on Monday June 26, 2023 @03:02PM (#36484270)
>Most designs were made by very smart people in the 50s at RCA as far as I can tell.

I am very interested to know this. Do you have any resources on this development work done by RCA and how it has shaped the modern world?

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Re:Towards a “PCB Drone” – Making a PCB Motor which reaches ... by narrator on Monday June 26, 2023 @05:50PM (#36486342)
When I was looking at catalogs of various analog circuit designs, a lot of them were circuits RCA patented that now are public domain because the patents are now expired. They probably aren't the only ones, but they certainly contributed a lot.

https://patents.google.com/?q=(analog+circuit)&assignee=rca&...

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Re:Towards a “PCB Drone” – Making a PCB Motor which reaches ... by eternityforest on Monday June 26, 2023 @08:01PM (#36487466)
Something like making a new audio amplifier is pretty specialized, but you don't need any advanced math (Not even algebra) for some of it. As long as you're still pretty much thinking time domain and you don't need to calculate frequency responses and RF stuff there's lots to do.

But then again my only analog experience is just IO stuff for digital, I've never done anything interesting in pure analog, I think if you're a real analog enthusiast you might get bored of what you can do without math.

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