{284} RCD SNUBBER Circuit | What is Snubber Circuit in SMPS and How to Calculate

Рет қаралды 41,526

3 жыл бұрын

in this video i explained What is RCD snubber circuit, why it is used in smps switch mode power supply circuit & how it works in high frequency transformer in switch mode power supply. circuit is explained in english language. Educational tutorials on power electronics RCD (resistor capacitor diode SNUBBER Circuit | What is Snubber Circuit and How to Calculate | Explained in Urdu. during switching the high frequency transformer the voltage stress on collector of the mosfet or transistor is double to the vdc and Leakage inductance spikes are also increase, these can be minimized by addition of a snubber circuit (a capacitor, resistor, and diode combination) connected to the transistor collector to positive supply line. it damps the oscillation effect in the off time period of the switching cycle. in this way the the reverse voltage generated in off time are diverted to this RCD snubber circuit so the voltage stress is minimized and the huge power loss in fall time is reduced to a negligible value.
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Пікірлер: 189

@burhanuddin127 2 жыл бұрын

You know why your channel is so underrated? Its because you explain so complicated topics that most of the people are not able to understand it, but in reality your channel is really real gold!

@HaseebElectronics 2 жыл бұрын

please accept my best regards and special thanks for your golden words

@HaseebElectronics 2 жыл бұрын

actually my most of the videos are questions from my viewers I take care for their questions I have still thousands of pending questions so far which are to be addressed and their answer is still not available at Google or KZfaq. if there is something that is not satisfactory

@SenthilKumar-ih8gt Жыл бұрын

@@HaseebElectronics your work is really awesome and ur educating to person in need. So kindly carry on your work and u will get the credit for ur work in future.

@mortenlund1418 Жыл бұрын

Gold it is. Great.

@awaismaqsoodawaismaqsood7962 6 ай бұрын

Kindly share your contact number

@MdRubel-rz8nl 2 ай бұрын

Assalamualikum boss, Alhamdulillah for present a verry useful lesson.

@olaleyejoshua949 3 жыл бұрын

U are an experienced professional teacher. What u are doing is a legacy. Pls, kp it up.Thank u, sir.

@HaseebElectronics 3 жыл бұрын

it is my pleasure. i am just sharing my experience, so that it may be helpful for someone please accept my best regards for your valuable feedback

@mohammadhasanshokoohi7150 Жыл бұрын

I wish u were my teacher at the university. AWSOME, thank you.

@HaseebElectronics Жыл бұрын

best regards

@chinnarao326 10 ай бұрын

Resp Sir! Dhanyavaadh Sir. -- ChinnaRao Paderu Andhrapradesh

@kasimahmed1912 3 жыл бұрын

جزاك الله خيرا وزادك علما وعافية

@rahulpatelgujratahmedabad3497 2 жыл бұрын

Good tiching karte hai 👌👍👍👍👌👌👌👍👍

@HaseebElectronics 2 жыл бұрын

thanks a lot

@user-fb2kl7et9i Ай бұрын

The info you offered i was searching for them so many years, thank you for sharing your knowledge, really appreciate

@HaseebElectronics Ай бұрын

Thanks a lot for your valuable words 💞

@ArjanvsTheWorld 3 жыл бұрын

Super diy video Haseeb.

@HaseebElectronics 3 жыл бұрын

best regards and special thanks

@nickgama1594 9 ай бұрын

You have explained the snubber circuit very well and also shows how to calculate the snubber cap and resistor. You can improve the rating by reducing many repetitions👍👍👍👍. This will make it lot more watchable.

@kainatamna7372 3 жыл бұрын

Very nice and informative sharing 👍

@manhardanmahedu3765 3 жыл бұрын

Nice explanation as usual, I always learnt something new from your videos hence watching repeatedly and each time get something new.

@lifefun3926 Жыл бұрын

Thank you for information. Greetings from Turkey. 😊👋

@HaseebElectronics Жыл бұрын

best regards

@stevenyamada70 3 жыл бұрын

I always learn something new from your videos. Thanks Haseeb! 👍

@oumisra 3 жыл бұрын

Beravo 3elik akhi mowaf9

@ministeriomundialliberando8403 10 ай бұрын

I would dare to say this is the best explanation about this topic i've ever studied.

@hashiraleezey5154 3 жыл бұрын

Ma sha Allah thanks for giving this valuable knowledge Still watching 👍 Jana'meal

@mihaidrug7148 5 ай бұрын

Keep up the veeery good work man! I learned everything i know about smps from you!!!

@prabirsenchowdhury3778 Жыл бұрын

Sir,many many thanks. You are great .

@shekharvartak1306 2 жыл бұрын

Nice video sir, I was in confusion about snubber ckt.but now my total ideas r cleared.you are having proper knowledge of electronics.you studied hard for this.God bless you.

@HaseebElectronics 2 жыл бұрын

best regards and special thanks it is my pleasure that my efforts are helpful for my viewers

@khanlalavlogs 3 жыл бұрын

Very well explained and beautiful presentation with details shown. Thanks for sharing bro. Keep it up.

@Telectronics 3 жыл бұрын

Simply to the point ! I liked it very much dear friend ! It helped me a lot. Thank you !

@AntonioSilva-ng6xt 3 жыл бұрын

This class will be my study material . thank my brother.

@DelmaHole 3 жыл бұрын

Groovy vibes all the way! Big 👍🏻 up my friend. See you aroud

@rainbow0203 Жыл бұрын

Great Explanation Sir. Such kind of video is very very helpful for me.

@k3lanka 3 жыл бұрын

14 like Good job Great update Super 👍👍👍👍👍👍👍👍👍✋👌

@amberslife 3 жыл бұрын

Great upload 👍

@peckelhaze6934 3 жыл бұрын

A very interesting explanation.

@jboy4real 3 жыл бұрын

Thanks for the video and especially the effort you put to share your knowledge

@MarineElectrical 11 ай бұрын

This is probably the best explanation of snubber circuit! Thank You!

@HaseebElectronics 11 ай бұрын

thanks a lot

@ARA-ENGLISH 3 жыл бұрын

Lk 174 😊😊👍👍👍 Ad one of 2 full watched Without skipping 😊👍👍

@CuisineWithShahida 3 жыл бұрын

MashaAllah very nice uploading👍 Stay blessed stay cnnctd🤝👍

@Ayeshainthekitchen 3 жыл бұрын

Assalamualaikum dear brother.MashaAllah very useful and knowleadgeble Upload.Thanks for sharing your valuable knowledge.Allah bless you.

@TYGAMatt 3 жыл бұрын

The best explination on the Internet. Super helpful.

@HaseebElectronics 3 жыл бұрын

best regards

@greenyelectronics 3 жыл бұрын

It's a very informative video, thanks for sharing it

@pradeepmaurya9321 3 жыл бұрын

Apke k es hard work k liye Apke har video k liye thank you so much sir

@AntonioSilva-ng6xt 3 жыл бұрын

Thank you my teacher for this more information I'm happy because this class helped me very much.

@mahbuburrahmanrahman2677 3 жыл бұрын

Assalamualikum. Excellent. Thank you very much for making people understanding very easily. Also Thanks again for your hardworking on behalf of making the video from start to published

@HaseebElectronics 3 жыл бұрын

You are most welcome best regards and special thanks

@MathsGuru.2023 3 жыл бұрын

Great work sir.

@specialvlog6757 3 жыл бұрын

Good work sir

@instrumenttechnician6528 3 жыл бұрын

Nice information video

@dreopro5611 3 жыл бұрын

Very useful topics. Thank you for the clear explanation..

@HaseebElectronics 3 жыл бұрын

You are welcome

@gunwantthakare5096 2 жыл бұрын

Very good

@HaseebElectronics 2 жыл бұрын

thanks a lot

@AnimalWorld-mv6by 3 жыл бұрын

شرح ممتاز واضح جدا

@manjitkumar6510 2 жыл бұрын

Best video on snubber s. Thanks for your efforts. Keep up the good work.

@HaseebElectronics 2 жыл бұрын

special thanks dear Manjit. best regards

@kabandajamilu9036 3 жыл бұрын

May Almighty ALLAH reward you thanks

@kabandajamilu9036 3 жыл бұрын

Asalm aliykum bro

@mortenlund1418 Жыл бұрын

Thanks for explanaition. Perfekt

@HaseebElectronics Жыл бұрын

best regards

@vijayakumarkumar9190 3 жыл бұрын

Very good information sir thanks

@avalavenkatesulu1889 3 жыл бұрын

Thanks you sir, a good video.

@HaseebElectronics 3 жыл бұрын

You are welcome

@anthonyselby8337 3 жыл бұрын

Thank you for the fantastic video, it was very informative and well presented and now I understand what a snubber circuit dose and how and where to use one 👍 Do you have videos explaining any types of circuitry other then Smps?

@monimonish302 3 жыл бұрын

Hai sir, It was awesome explanation and I have four questions. 1.for peak current calculation formula where 3.13 value is come from? 2.is (tf) value is given in datasheet r how we knw DAT (tf)value. 3.last formula for transistor wattage where 6T is came from? 4.In which way the resistor will discharge the charges at transistor "ON Time" These are my question please give sir to these question to complete this topic sir...

@electronixlab 2 жыл бұрын

Same I am also not understand this values please guide

@Rama-po6xw 2 жыл бұрын

Tf is the delay in fall time which is from datasheet and watch once again video to know how does the capacitor discharges during transistor ON time. But I still did not get answers for 1st question and 3rd question. Here I have added another question. 5. In the formula R1 = Ton_min / (3*C1), What is 3? Are 3.13, 6T and 3 assumption? If yes, what is the base for these assumptions? Only Haseeb can answer these questions

@kamleshkumardehariya9089 3 жыл бұрын

Great explanation sir... Keep it up.. Thanks🙏

@HaseebElectronics 3 жыл бұрын

Thanks and welcome

@rmjnm 3 жыл бұрын

You're great sir, thanks.

@silviutudose7868 3 жыл бұрын

Excellent explanation, respect from Romania.

@HaseebElectronics 3 жыл бұрын

Many thanks! and best regards

@pradeepmenaria7999 3 жыл бұрын

I am also from electronics field but this type of explanations still not found any books thanks for very useful information 👍👍👍😁

@merittechshop 2 жыл бұрын

Very clear explanation, thank you

@LousyPainter 3 жыл бұрын

Great video my friend! What am I saying. Another Great video!

@AaoSikhen 3 жыл бұрын

Good morning bhai . very useful and informative video

@olivierj.2435 Жыл бұрын

Awesome video thank you very much

@supersilve 2 жыл бұрын

Thanks for a very clear explanation which was easy to understand.

@HaseebElectronics 2 жыл бұрын

You are welcome!

@Electronzap 3 жыл бұрын

Good explanation!

@IndianFlavor 3 жыл бұрын

1st like NYC tutorial my friend 👍🏻👍🏻👍🏻👍🏻👍🏻

@ministeriomundialliberando8403 10 ай бұрын

Thank you very much again. I've found empirically that we just divide by 6 the value of power disipated without snubber circuit to know the amount of power dissipated using it.

@electronicstipstricks9235 3 жыл бұрын

Thank you sir this video it very useful

@coloradowilderness3139 3 жыл бұрын

Your method is Amazing.

@HaseebElectronics 3 жыл бұрын

best regards

@mohamedantri9433 3 жыл бұрын

اكثر من رائع...شكرا لك استاذ جزاك الله خيرا على اسهاماتكم....

@HaseebElectronics 3 жыл бұрын

thanks a lot dear brother

@mohamedantri9433 3 жыл бұрын

Think you so much great dear brother...

@TheTwinsDay 3 жыл бұрын

Long time my friend, you are the best and your channel is doing so well, thank you for visited back, will continue to support each other. Please stay safe

@user-pq5tz5pn4g 3 жыл бұрын

السلام عليكم ورحمه الله وبركاته أخي الكريم احلى بصمه بتوفق ونجاح دائما

@MrKumar-il4xh 3 жыл бұрын

Thanks for posting this video.

@HaseebElectronics 3 жыл бұрын

You're welcome

@AbdulMomenZargar60 3 жыл бұрын

Good Morning & All The Best My Dear Brother

@sheekbikdiy1993 3 жыл бұрын

Very beautiful, artist👏👈👍

@sudheerkumar5966 3 жыл бұрын

Very good sir

@ExtcWorld 2 жыл бұрын

Thank you so much sir your video helped me understand this snubber network concept very easily, the only calculation part whr i stuck was the last formula where you calculated the pd with rcd snubber which came to be 1.38 Watts, i just wanted to know why we multiplied the T by 6 or to be more precise where the number 6 came from in formula.

@saicharan8696 2 жыл бұрын

Nice explanation, thank you🙏💕

@HaseebElectronics 2 жыл бұрын

i am thankful

@Rama-po6xw 2 жыл бұрын

Hi Haseeb, Are you still checking the comments? If yes, Could you answer the following questions? . Answers to these questions will help so many of your channel followers like me. 1. How did you consider 3.13 in the Ipeak calculation? 2. How did you consider 3 in the R1 calculation? 3. How did you consider 6 while calculating transistor power dissipation after adding snubber circuit? The explanation of the circuit and calculations are awesome

@MrLuo-lq2yv Жыл бұрын

Reply about the 2, the voltage in capacitor is reduced almost to zero after three times time constant (3RC), because U*e^(-3) and the energy of capacitor in RCD is expected to release over during T_on.

@MrLuo-lq2yv Жыл бұрын

Reply about the 1, 3.13 should be related to topology of the circuit, only if you can calculate the I_pk and take some margin into account in your applications, the reason about the value, 3.13, can be ignored.

@MrLuo-lq2yv Жыл бұрын

Reply about 3, the value, 6, may be empirical resulted from various experiments in their company.

@DesiSwaadh 3 жыл бұрын

Like very nice so beautiful good wake 👌👌👌😍😍❤️❤️

@ryyhjy346 3 жыл бұрын

شكراً جزيلاً على الشرح الرائع

@HaseebElectronics 3 жыл бұрын

thanks a lot. stay blessed

@SMV1972 Жыл бұрын

Спасибо, за прекрасный урок и понятное объяснение!

@HaseebElectronics Жыл бұрын

добро пожаловать и особая благодарность за ваши ценные слова. оставайся благословенным

@SMV1972 Жыл бұрын

If I understood correctly, in flyback, instead of a doubled input voltage at the time of closing the transistor, there will be a reflected voltage + a self-induction voltage of the dissipation inductance?

@hamaskaka8635 3 жыл бұрын

You're professor!! You should teach in University. Very clear and understanding the concept well..

@HaseebElectronics 3 жыл бұрын

please accept my best regards and special thanks

@wegi9621 2 жыл бұрын

great! thanks

@HaseebElectronics 2 жыл бұрын

You're welcome!

@PatrickRibbsaeter 3 жыл бұрын

thanks, master

@halleibranee3026 3 жыл бұрын

Perfect 👌

@HaseebElectronics 3 жыл бұрын

thanks a lot. stay blessed

@deepakbhangadia8693 Жыл бұрын

👍🙏 god bless u

@HaseebElectronics Жыл бұрын

thanks a lot stay blessed

@oswaldocunha9455 Жыл бұрын

Explendid and clever explanation .Very practical as well . Congratulations ! Since my application is based on a 200v , H bridge IRF740 at very low frequency( 0,3 to 1,5 Hz) following your steps I've got 1,23 uF and 0,54 ohms for 3,13 A Ipk .(Hope it is correct ...) but how the RCD should be wired to the two lower mosfets ?

@kahitanongmaisip9358 3 жыл бұрын

awesome your my idol

@kahitanongmaisip9358 3 жыл бұрын

@@HaseebElectronics ty sir i want to know about smps pls i will keep sharing your vids

@PRASHANTKUMAR-gi9nd 3 жыл бұрын

123👍 Impressive teaching regarding modern technology

@ministeriomundialliberando8403 3 жыл бұрын

Extremely very good explanation about this topic. in fact, the best one I've ever studied. Can I ask your opinion, since I've seen simulations where when using 12 Vdc of power source voltage, they have measured up to 2500Vdc of spikes, can a such low power source produce such a High voltgae spikes in a coli? I'd appreciate your suggestions. Thank you.

@HaseebElectronics 3 жыл бұрын

best regards and special thanks yes if snubber circuit is not used, these spikes might reach at this amplitude due to winding ratio, reverse emf, switching topology, load, leakage, core permeability so the voltage stress spikes may reach at this level

@ministeriomundialliberando8403 3 жыл бұрын

@@HaseebElectronics Thank you for taking your time to help and respond. God Bless you.

@bartdepauw1156 2 жыл бұрын

Very nice explanation ! How do you select the diode type in this case ? Based on I peek = 0.85 A and diode response time ?

@sunitaskitchen1627 3 жыл бұрын

36 great uploading bhai 🙏

@rajudande1137 3 жыл бұрын

thank u sir

@HaseebElectronics 3 жыл бұрын

thanks a lot

@user-se2pb5yx5p 3 ай бұрын

Thanks for the explanation. In an atx power supply, I found the mosfet short and diode blown. I guess it's the diode from the snubber circuit. For replacing the diode is there a special requirement like fast recovery, amp rating otherwise they get shorted again? Why did the diode go short in the first place?

@jamesmchilufya3123 3 жыл бұрын

Hello Sir, I am grateful for your explanations, Please can you do a video about the capacitor (ground decoupling capacitor). precisely, the purpose of that capacitor which links cold and hot grounds and how we can troubleshoot its failure

@jamesmchilufya3123 3 жыл бұрын

@@HaseebElectronics Thanks Sir in advance, precisely the capacitor connecting the auxiliary winding ground(hot) to the cold ground

@kahitanongmaisip9358 3 жыл бұрын

plss sir make a vids about those capacitor on primary ground and secondary ground /hot and cold

@jamesmchilufya3123 3 жыл бұрын

Yes i would also like to watch a video about the coupling capacitor which links the hot and cold ground

@mwenedatacassim3064 2 жыл бұрын

Asalam Aalaikum It has been so long, I was following you silently, be blessed for your initiative you made of teaching us, you are amazing teacher bcz most of every thing I know about flyback converter it is bcz of you, thx for this, but I want to ask you a favor of clarifying fall time (Tf) you said in this tutorial (284) RCD snubber circuit, you said that MOSFET used in that example has 0,3us of fall time(Tf) after I tried to read more than ten datasheet then I realized that there is no MOSFET with fall time of that range, I saw instead delay fall time(Tdf) may probably be in that range. So, I want to ask if you may give us again some other clarification if that 0,3us of that MOSFET was Td or Tdf? Be blessed, thx.

@HaseebElectronics 2 жыл бұрын

وعليكم السلام ورحمة الله وبركاته the tf (fall time) or tdf turn off delay or td or td(off) or time delay falling edge (tf) have the same the example in that tutorial was just to give the concept we must have to follow the datasheet for exact calculations

@oswaldocunha9455 3 жыл бұрын

Thanks a Lot ! Hard to find such a nice explanation! I have assembled a full bridge excited by one TL594 IC at 12,5 kHZ .conected to two IR21844 IC for Mosfet drive . RCD is 2,2uf / 15 ohms and fast diode UF4007 .Mosfets are ok but resistors become extremely hot . What is wrong ? Can you help me ?

@HaseebElectronics 3 жыл бұрын

welcome and special thanks for appreciating my work in resistor heating up issue, did you selected the correct wattage. 15 Ohms looks very low value, please check it again

@user-fb2kl7et9i Ай бұрын

انا عربي وخلال بحثي عن هذه المواضيع في اللغة العربية، قد اجد اشخاص مختصين يتحدثون لكن لا يعطونك الاجابة الصحيحة الواضحة التي وجدتها هنا

@HaseebElectronics Ай бұрын

السلام عليكم و رحمة الله و بركاته لله الحمد والشكر اخوكم محمد اشرف

@diy9045 3 жыл бұрын

Ipk=(3.13 *Pout)/Vdcmin where does 3.13 come from? and in the part of calculate power dissipation how can i find Tf value?

@mwenedatacassim3064 2 жыл бұрын

Asalam Aalaikum It has been so long, I was following you silently, be blessed for your initiation you made of teaching us, you are amazing teacher bcz most of every thing I know about flyback converter it is bcz of you, thx for this, but I want to ask you a favor of clarifying fall time (Tf) you said in this tutorial (284) snubber circuit, you said that MOSFET used in that example has 0,3us of fall time(Tf) after I tried to read more than ten datasheet then I realized that there is no MOSFET with fall time of that range, I saw instead delay fall time(Tdf) may probably be in that range. So, I want to ask if you may give us again some other clarification if that 0,3us of that MOSFET was Td or Tdf? Be blessed, thx.

@aeropeoplellc8160 3 жыл бұрын

If the diode is directly connected across the primary coil in reverse biased does that also help ? because it takes the (-) EMF spike and gives it back to the other end of the coil effectively shorting it hence taking the negative emf away. but that will effect the magnetic field as well which might lose energy here rather than in the secondary coil. Please guide thanks.

@HaseebElectronics 3 жыл бұрын

connecting a diode will case excessive power dissipation and will cause sudden discharge so the it will cause to loss in energy

@jboy4real 3 жыл бұрын

Sir do a video for ac line filter calculation for smps design

@pamarthikanakaraja9812 3 жыл бұрын

Good Sir, I understand very well Thank you for your guidance. But Unfortunately, you explained small error calculations in capacitor 196pF is nearly equal to 0.2nF but in the video tutorial, you explain 2nF or 2.2nF Suitably. Am I, correct sir?

@TheExtraextrovert 2 жыл бұрын

Did you find the answer?