24:50 someone pronounces "giga" correctly!!!!!!! Your outstanding analysis makes me smile also. THANK YOU, Professor.
@sambenyaakov2 жыл бұрын
😊Yes, this is how it is pronounced in venues that count such as in the film "Back to the Future".
@k7iq2 жыл бұрын
😂😁😍😎
@th600mike32 жыл бұрын
This is awesome! Thank you for making this video!
@sambenyaakov2 жыл бұрын
Thanks
@van_augur7256 ай бұрын
Hi, I have one question. Doesn't the feedback loop have to be broken up when simulating the loop gain and doing a stability analysis of an op amp circuit?
@sambenyaakov6 ай бұрын
No. Very difficult to keep the operating point when opening the. The method shown is the recommended.
@popuassmf2 жыл бұрын
My avation! Nice explanation step-by-step.
@sambenyaakov2 жыл бұрын
🙏😊
@tamaseduard51452 жыл бұрын
🙏👍🙏
@sambenyaakov2 жыл бұрын
😊🙏
@robson62852 жыл бұрын
Unbelievable interesting! this circuit would never been understandable enough without this great and superinteresting explaining. I find this such an inspiring circuit now i see the way this circuit can work. Great teaching and around this great new circuitidea!(at least for me this was such an interesting and new circuitway, this whole videolesson i find really inspiring! Thank you so
@sambenyaakov2 жыл бұрын
Thanks Rob for comprehensive over view.
@mauriziogarino83532 жыл бұрын
Why not simply using a ceramic capacitor as a first stage of the pi filter? What about the opamp output stage current amplitude, Is It a push pull needed? What's the main advantage vs full passive filter?
@sambenyaakov2 жыл бұрын
"Why not simply using a ceramic capacitor as a first stage of the pi filter? " all that is discussed is AFTER the cap. Or, do you think that just a cap is a good solution to the EMI problem? As for: " What about the opamp output stage current amplitude, Is It a push pull needed? What's the main advantage vs full passive filter" you correctly defined the home work.
@akosbuzogany27522 жыл бұрын
There might be just a handful of people on this planet to challenge a TI design! Chapeau!
@sambenyaakov2 жыл бұрын
😊Thanks. Believe it or not, TI offices and labs are populated by humans which are bound to err from time to time. The sad point is not that people do not challenge TI but that many do not take the time to check for errors.
@陳科宏-t9c Жыл бұрын
Good presentation! Thank you!
@sambenyaakov Жыл бұрын
🙏👍😊
@harrydellamano10252 жыл бұрын
Hi Sam, great job but one question: Your BODE box can only supply 50 MHz, how do you explain 1 Ghz display?
@sambenyaakov2 жыл бұрын
Hi Harry, Thanks for the comment. You are correct but the Bode 100 is illusrative regarding the method of measurement while the plots, as described, are simulation results. As I understand, Omicron is working on a new analyzer with a wider BW, so this apparent incompetability will be resolved.
@k7iq2 жыл бұрын
Awesome as usual ! :) I remember once that LTspice would not converge... I added a resistor with ONE leg connected to a portion of circuit and it ran ! I think they fixed that particular type of convergence error not long after that.
@sambenyaakov2 жыл бұрын
Thanks
@1102gourav Жыл бұрын
Thank you Professor for the lecture on Active EMI filter from TI. Your lectures always means a lot and is building my power electronics knowledge. Professor, one point to add on the value of Cinj. The Cinj is connected between phase and ground. Hence, at low frequency (50/60Hz) its value should be of sufficiently low, so that the leakage current value is small to meet the regulatory standards (high leakage current causes nuisance RCD tripping and may become lethal to livestock). If it make sense, please let me know. Thank you once again sir.
@sambenyaakov Жыл бұрын
Thanks for comment. I am not sure if follow you. We are talking about DC circuits. What do you mean by "phase to ground"? the power line?
@GadgetChannel-ErCanEverything2 жыл бұрын
👍👍👍🤝🤝🤝
@sambenyaakov2 жыл бұрын
🙏😊
@trevthea57812 жыл бұрын
Always brilliant
@sambenyaakov2 жыл бұрын
😊🙏
@veeraa86958 ай бұрын
It will help for RE or RI Or both
@falconhawker2 жыл бұрын
I remember 60 hz power supply design was necessary and B O R I N G . Well times have changed ! Switching power supplies delivering 10Amp DC , with 20mvpp ripple , operating at 100 of khz, requiring sophisticated and difficult ( for me ) analysis.
@sambenyaakov2 жыл бұрын
Indeed. Thanks for comment.
@peddadasaiganesh4651 Жыл бұрын
It worked on me like a magic professor. I am currently working on the stability of the filter. Do you suggest any reading materials to analyze the stability of such filters and also the selection of component values?
@sambenyaakov Жыл бұрын
look up IEEExplore, there are some papers on active filters.
@ats891172 жыл бұрын
Great video relevant to a very large number of products, but the circuit isn't very useful if you can't get an amplifier with a high enough gain-bandwidth product to make it work. Or as the saying goes: Further research is necessary...
@sambenyaakov2 жыл бұрын
Thanks for comment.
@tseckwr37832 жыл бұрын
Professor Sam ... Thanks for the latest video.
@sambenyaakov2 жыл бұрын
😊🙏
@alirezatanehkar2009 Жыл бұрын
Very sweety analysis!! What is the max power that can be used for active filter?
@sambenyaakov Жыл бұрын
Probably few tens of Watts.
@arthurswanson32852 жыл бұрын
As always, excellent tutorial, Professor. I feel like I owe Ben-Gurion University tuition payments from all the knowledge I get here! :)
@sambenyaakov2 жыл бұрын
Wow, thanks!
@ayushsinghal65572 жыл бұрын
Hello prof, I have a circuit. A supply voltage connected to the NMOS and then to the capacitor (1000uf).I want to charge the capacitor with 1A current in around 200ms. SO for this, I have to use NMOS in a linear region and it will be closed switch. But my question is how to control this NMOS so it can work in linear region and provide 1A current for particular time....could you give some suggestions?
@sambenyaakov2 жыл бұрын
Perhaps this will be of help?
@ayushsinghal65572 жыл бұрын
@@sambenyaakov sorry i didn't get?
@장진행-e2wАй бұрын
Many thanks!
@sambenyaakovАй бұрын
👍🙏
@Metalloys2 жыл бұрын
Thank you professor.
@sambenyaakov2 жыл бұрын
Thanks
@klauskragelund88832 жыл бұрын
Great presentation. One small error if I am not mistaken: when talking about the bode measurement, the resistor is added to the compensator/opamp output. You would like to have low impedance in that point (10mOhm), but adding a resistor/inductance of the injection transformer will impede that function. You will probably measure something, but not the correct function. You could add a 10mohm resistor, but that is impractical and the bode 100 wont be able to supply the needed source voltage. It's better to find another injection point.
@sambenyaakov2 жыл бұрын
Hi Klaus, in principle you are correct. But.. since the feedback is taken after the resistor , the reflected resistance is much much smaller.
@klauskragelund88832 жыл бұрын
@@sambenyaakov Yes, to a degree. The compensator path needs however to have not just low reflected resistance, but also low inductance. The AEF will not function well if you have 50nH+ inductance in the compensator output, since the phase will roll of as compared to the 3ohm resistor. Could be interesting to do a simulation with trace and component parasitics
@sambenyaakov2 жыл бұрын
@@klauskragelund8883 Where di you get 50H+?
@klauskragelund88832 жыл бұрын
@@sambenyaakov 50nH, from 50mm total traces from the device to the injection point, via traces and components
@klauskragelund88832 жыл бұрын
Just a comment about your videos, they are simply great and deep content of high quality. If I only had had a teacher like that in school.....