Thanks for the lecture. The asymptotic Equality principle example 1, you mentioned that it is sensing voltage returning voltage which is correct. The slides have " sensing voltage returning current ".
Very good lecture, prof. Hajimiri. Maybe it's worth mentioning a bit how to analyze/simulate circuits with multiple feedback loops. There is not much literature on that.
One more question: On 49:44 can be read "For a single unilateral loop, return ratio is the same for all the sources in the main single path". But in an amplifier with unilateral loop and more than one transistor, the return ratio (and also H_infinity and H_0) depends on the controlled source that you choose. What do you mean then with "all sources in the main path"? Thanks in beforehand and congratulations.
"uz should never enter equations" -- While I see the point of that, technically it does enter the equation in the asymptotic gain formula because T/(T+1) is equal to -uy/(ux-uy) = -uy/uz. And, similarly, 1/(T+1) is equal to ux/(ux-uy) = ux/uz = 1-(-uy/uz). I think it's actually helpful to think this way too in order to get the full intuition behind the formulas
Dear Prof.Hajimiri , could you please some references to study a “Building Solar Power Stations in Space “ .. I'm interested in this topic and I want to know more about it. Thank you for all 🙏🏻
Prof. Hajimiri, could you please recommend some references to study state space in control systems, maybe with a focus on analog design? During my undergrad, I studied how to switch between s-domain and state space as well as observability and controllability. We never went much beyond that. But a few years back I tried to study a paper on N-path filters. It used a state space approach and I was totally stumped. I'm not sure where to study the background. I am able to follow the maths in the 1960 paper on N-path filters which uses s-domain.
Sir can i have the problems sets that you have gave to your students in your class please 😁😁 And i wish god would pay you huge (with his generosity) for these information you posted it helped me alot I've seen and understood all of your lectures (alhamdulilah) but i feel I'm poor in solving problems And ramdan karim for me and you ❤❤
Currently trying to build op amp right now for a project. I think I got my Op amp marginally stable. I have about 50 degrees phase margin when my open loop gain is 0 dB. With unity closed loop gain. It works at 1V amplitude at 1 kHz. But once I increase to 20kHz, it starts to be distorted. But I noticed, if I decreased the amplitude, I could continue to raise the frequency all the way up to 1 MHz. But I had to lower the amplitude of the input even further to achieve that. Or else it will be distorted. Any ideas what my issue could be?
One question: The unilaterlal loop equation you present appears on the Rosenstark book, but what are your sources for the bilateral gain loop equation? Is it your own research result? Have you yet published it? Thanks and congratulations.
Dear Professor, Thank you! Great videos! Where and how the peaking effect in Cherry-Hooper can be used in practical design? Is there a book explaining that?
i just so your ted talk and i got a question...so this is how they work these HAARP type antenas manipulating our ionosphere? and what else can electromagnetic waves can do to matter? you know of the hitchinson effects? you know of Dr.Judy Wood?
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Hi! I'm an EE from Hungary. Just wanted to share with you that I really enjoy your lectures about electronics.
Glad to have you back again !
By far the best lecture on feedback analysis!
Thanks for the lecture.
The asymptotic Equality principle example 1, you mentioned that it is sensing voltage returning voltage which is correct.
The slides have " sensing voltage returning current ".
You are right. That was typo on the slides. I removed the wrong part. Thank you.
Suddenly my night-train ride looks promisingly amazing!
Very good lecture, prof. Hajimiri. Maybe it's worth mentioning a bit how to analyze/simulate circuits with multiple feedback loops. There is not much literature on that.
One more question: On 49:44 can be read "For a single unilateral loop, return ratio is the same for all the sources in the main single path". But in an amplifier with unilateral loop and more than one transistor, the return ratio (and also H_infinity and H_0) depends on the controlled source that you choose. What do you mean then with "all sources in the main path"? Thanks in beforehand and congratulations.
"uz should never enter equations" -- While I see the point of that, technically it does enter the equation in the asymptotic gain formula because T/(T+1) is equal to -uy/(ux-uy) = -uy/uz. And, similarly, 1/(T+1) is equal to ux/(ux-uy) = ux/uz = 1-(-uy/uz). I think it's actually helpful to think this way too in order to get the full intuition behind the formulas
More videos please great content
we can also return to Professor Ali by not skipping the ads . Just turn down the volume and then get it back once its done.
thank you! more content please.
Dear Prof.Hajimiri , could you please some references to study a “Building Solar Power Stations in Space “ .. I'm interested in this topic and I want to know more about it. Thank you for all 🙏🏻
Prof. Hajimiri, could you please recommend some references to study state space in control systems, maybe with a focus on analog design? During my undergrad, I studied how to switch between s-domain and state space as well as observability and controllability. We never went much beyond that. But a few years back I tried to study a paper on N-path filters. It used a state space approach and I was totally stumped. I'm not sure where to study the background. I am able to follow the maths in the 1960 paper on N-path filters which uses s-domain.
Great as always!!
Sir can i have the problems sets that you have gave to your students in your class please 😁😁
And i wish god would pay you huge (with his generosity) for these information you posted it helped me alot I've seen and understood all of your lectures (alhamdulilah) but i feel I'm poor in solving problems
And ramdan karim for me and you ❤❤
استاد اعظم
Currently trying to build op amp right now for a project. I think I got my Op amp marginally stable. I have about 50 degrees phase margin when my open loop gain is 0 dB. With unity closed loop gain. It works at 1V amplitude at 1 kHz.
But once I increase to 20kHz, it starts to be distorted.
But I noticed, if I decreased the amplitude, I could continue to raise the frequency all the way up to 1 MHz. But I had to lower the amplitude of the input even further to achieve that. Or else it will be distorted.
Any ideas what my issue could be?
yes, your loop gain isn't enough at 20kHz...
One question: The unilaterlal loop equation you present appears on the Rosenstark book, but what are your sources for the bilateral gain loop equation? Is it your own research result? Have you yet published it? Thanks and congratulations.
You can find the derivation in my draft book: Analog: inexact science, vibrant art. (free pdf from chic.caltech.edu)
Sir, where can I find slides to this lecture
Dear Professor,
Thank you! Great videos!
Where and how the peaking effect in Cherry-Hooper can be used in practical design?
Is there a book explaining that?
Generally to generate an underdamped response in the load (similar to an inductor) without using an inductor.
HAHAHA I can only follow along playing this at half-speed, but it's hilarious listening to it!
Thank you very great vidoes
We need more contents !!
Hey Please 🙏keep it up
Thank you sir
i just so your ted talk and i got a question...so this is how they work these HAARP type antenas manipulating our ionosphere? and what else can electromagnetic waves can do to matter? you know of the hitchinson effects? you know of Dr.Judy Wood?
Nah man. This type of teaching will only work if you at least use a pointer and wrote on what you’re describing
Fr
Thanks 🙏👍💯😊