Right Half Plane Zero (RHPZ) in power electronics

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Right Half Plane Zero (RHPZ) in power electronics

Рет қаралды 13,211

Sam Ben-Yaakov

Күн бұрын

An intuitive explanation.

Пікірлер: 39

@alessiocaligiuri 3 жыл бұрын

All your videos are very well done. They contain much technical and theoretical knowledge; I've been learning a lot thanks to your channel. Many thanks for sharing this kind of lesson!

@sambenyaakov 3 жыл бұрын

Thanks for kind note.

@pvvikas 6 жыл бұрын

Thank you Professor. Explanation in time domain is amazing!

@sambenyaakov 6 жыл бұрын

Thanks for comment.

@kevinvanlandingham8938 3 жыл бұрын

I agree

@chenhu5317 8 ай бұрын

Thank you very much for your clear explanation, it really is helpful.

@PSPS437 6 жыл бұрын

Good video Dr. Sam. Thank you for sharing your nice great informational videos.

@sambenyaakov 6 жыл бұрын

Thanks

@luizfischer9109 6 жыл бұрын

Excellent explanation! Thank you professor.

@sambenyaakov 6 жыл бұрын

(-:

@toolstipsandprojects1665 Жыл бұрын

Thank you! This is great.

@sambenyaakov Жыл бұрын

Thanks.

@NNNILabs 6 жыл бұрын

Ah, I've been waiting for this one.

@sambenyaakov 6 жыл бұрын

Happy to read that.

@georgedaadouch1971 6 жыл бұрын

Thanks..I would like to watch you explaining boost converters design criteria like coil,capacities and FET choosing

@sambenyaakov 6 жыл бұрын

Thanks for comment. Various videos in my channel (sam ben-yaakov) cover various aspects of this issue. I will consider doing a dedicated video on a Boost.

@swarajpattoth9050 3 жыл бұрын

Thank you!

@sambenyaakov 3 жыл бұрын

Thanks

@catalin3407 6 жыл бұрын

Hi Sam, I see that at 12:44 you make reference to LARGE SIGNAL input. I have a question that has been bothering me from some time now. When we test stability of converters in the time domain, we usually use the load step (i.e. use a current source at the output that changes abruptly.. you are also doing it at 15:25). In order to estimate the overshoot(or undershoot) of the voltage due to that load step, we still use the SMALL SIGNAL output impedance of the converter ! I do not understand that. How can we use the SMALL signal model with a LARGE signal test ? Isn't the load step a large signal quantity ? It would be nice if you can point me into the right direction (articles, books, explanation etc..).

@sambenyaakov 6 жыл бұрын

You are absolutely correct. I was using the step just for a sanity check as to whether the system is stable or not. Relating the magnitude of the step response to the small signal model is an approximation. See IEEExplore for large signal models of PWM converters.

@efiyehezkel 4 жыл бұрын

מאלף

@sambenyaakov 4 жыл бұрын

👍

@JorgeSilva-em8pf 6 жыл бұрын

Dear Professor. I chorus with the other viwers. But, what about "slope compensation", which is so popular with the CCM flyback converter, that ones which have on time over 50% of the overal switching period? B. R.

@sambenyaakov 6 жыл бұрын

Sub harmonic oscillation has nothing to do with what the presentation is all about.

@JorgeSilva-em8pf 6 жыл бұрын

Dear Professor. As you indication, the oscillation which could occur in CCM flyback converter with ton width over 50% is not due to unstable closed loop gain? Is it? B. R. Jorge

@sambenyaakov 6 жыл бұрын

NO it is not due to to unstable closed loop gain. See kzfaq.info/get/bejne/nKxdnal3tL23iWg.html

@JorgeSilva-em8pf 6 жыл бұрын

Thanks Professor. I will watch carefully the sent video. But since the Unitrode age, I was taught that the reazon for the sub-harmonic oscillations in that conditions was due the RHPZ, of course with a physics explanation either. But thanks again for shed light over this subject. B. R. Jorge

@sambenyaakov 6 жыл бұрын

You are mistaken. I do not believe that in any of Unitrode seminars they said that sub-harmonic oscillation is due the RHPZ,