3 ms·
Ok, thanks. But I was calling attention to a point in the previous comment that makes it difficult to see a kind of "dualism" between idealized current sources
by nyeah 1y ago
Ok, thanks. But I was calling attention to a point in the previous comment that makes it difficult to see a kind of "dualism" between idealized current sources to idealized voltage sources. Idealized current or voltage sources don't necessarily have any series resistance, and it doesn't matter how they're realized.
- lisper 1y agoYour point is well taken. My guess was that the OP had implementation in mind when they wrote "good voltage sources vary their resistance". Or that might have just been a mistake.
- chermi 1y agoI'm certainly no electrical engineer, and I see how the nice duality was lost in my description. Yes, I was thinking about the ones I'd actually worked with, where the resistance was the control knob. I haven't done much electronics since, so my recollection isn't perfect. I have recently been doing some esp-32 control projects where I just used some power supply I bought. I should look into how it works! Edit- I just looked up switching power supplies and remembered that I did actually know about those!