Ripple control of PWM converters

Рет қаралды 3,077

Sam Ben-Yaakov

3 ай бұрын

Relevant video
The inner works of Peak Current Mode (PCM) control
• The inner works of Pea...

Пікірлер: 32

@hardrocklobsterroll395 2 ай бұрын

Your videos have made power electronics much more approachable. Thank you for explaining the missing pieces from app notes

@sambenyaakov 2 ай бұрын

Thanks

@t1d100 3 ай бұрын

Thank you for your efforts to share and teach! It is much appreciated! Here is a little viewer feedback that you might find useful and encouraging... 1) I am a just a self-taught EE hobbyist and 2) this video covers significantly higher circuit concepts. Even so, you were able to communicate so well that I was able to follow along very easily. And, this occurring without me having watched the prior referenced video. So, bravo to you, good sir!

@sambenyaakov 3 ай бұрын

Thank you for kind note. Comments like yours keep me going.

@Zetex2000 3 ай бұрын

Thank you very much for your presentation. I am also EE hobbyist and I enjoy your videos very much! Please don't stop posting videos.

@sambenyaakov 3 ай бұрын

Thanks. Happy to get your note.

@biswajit681 3 ай бұрын

Wow !! I just commented few minutes back in your previous video regarding new video and it's uploaded 🎉

@sambenyaakov 3 ай бұрын

😊👍🙏

@ehsanbahrani8936 3 ай бұрын

Thank you professor. Excellent ❤👍🙏🌹

@sambenyaakov 3 ай бұрын

Thanks.

@k7iq 3 ай бұрын

Very interesting ! :)

@sambenyaakov 3 ай бұрын

Thanks

@DmitryM97 3 ай бұрын

Very helpful! Thank you!

@sambenyaakov 3 ай бұрын

👍🙏

@nikolaytel 3 ай бұрын

Dear Prof. Ben-Yaakov, Thank you very much for your videos! I would be thankful if you could advise on the two following subjects: 1. Please give a few examples of commercial controllers that exploit this method. 2. Please elaborate on the pros and cons of this method compared to the Current Mode Control (CMC). It looks like the Ripple Control is easier to design. Yet, if we want to protect the switches, we still need to measure their currents, like in the CMC. Thank you very much.

@sambenyaakov 3 ай бұрын

LM5164QDDARQ1 is a variation with constant on time. PCM is in general better but the ripple conrol has advantage when fast response is needed and when the input voltage range is large.

@tamaseduard5145 3 ай бұрын

👍❤️🙏

@sambenyaakov 3 ай бұрын

🙏👍🙂

@vanease1 2 ай бұрын

Hi Professor, thanks for the valuable explanation! One question: is this voltage ripple always detectable in practice? looks like the sensing could be quite sensitive, is this right?

@sambenyaakov 2 ай бұрын

As explained in the video you can inject it

@vanease1 2 ай бұрын

@@sambenyaakov Hi Professor, thanks for your reply. Do you have concern on the parastic inductance's impact? I am thinking about an output with many electrolytic capacitors. Maybe the current injection can even improve this situation?

@sambenyaakov 2 ай бұрын

@@vanease1 I mean to inject the ripple into the point of sampling (divider). This is explained in video

@chaiyonglim 3 ай бұрын

Hi professor, there are many attempt from literature to develop small signal model of ripple control and analyze its bode plot, is it valid to have small signal model on this kind of control?can you comment?

@sambenyaakov 3 ай бұрын

Good question. I am all for small signal and average models. But there is a point that one has to realize that when a system is higly nonlinar, linearization means little. We need more large signal analysis tools.

@user-he5ht7kk2z 3 ай бұрын

Hello professor,May I ask for an advice I am currently final year student of king mongkut’s university of technology north bangkok studying Electronic and power electronic engineering. I Love Power elctronic and I also keen on embedded system and pcb design. I'm myself I have little to no expirence working with real engineer in this field. For that reason I'm still looking for a job as R&D in power electronic or embedded system to get to know how real engineer work and do thing.So what I want to ask for your advice is if I want to get better in working as power electronic and embedded system engineer what is your recommend and am I on the right track looking for R&D job?. Thank you professor

@sambenyaakov 3 ай бұрын

Hi, Indeed, the best way is to take part in design work in the industrial environment, with experience engineers from whom you can learn and grow professionally..

@ivane1168 3 ай бұрын

Hello Professor, my friend got the idea for the control method of a parallel resonant ZVS/ZCS SMPS with a huge dynamic range of regulation, and he tested that successfully(single-stage AC85-250V SMPS with PFC). Could you please suggest to him the next step?

@sambenyaakov 3 ай бұрын

If he is an academician, a paper

@ivane1168 3 ай бұрын

@@sambenyaakov he's just an engineer, so he have no idea what to do next.

@sambenyaakov 3 ай бұрын

@@ivane1168 He can interest a company to to develop a product based on in.Needs to find the area of application. He can stlll write a paper or upload a post to get credit.