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

[@burhanuddin127]

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]

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

[@HaseebElectronics]

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 KZbin. if there is something that is not satisfactory

[@SenthilKumar-ih8gt]

@@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]

Gold it is. Great.

[@awaismaqsoodawaismaqsood7962]

Kindly share your contact number

[@olaleyejoshua949]

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

[@HaseebElectronics]

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

[@ministeriomundialliberando8403]

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

[@kasimahmed1912]

جزاك الله خيرا وزادك علما وعافية

[@MarineElectrical]

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

[@HaseebElectronics]

thanks a lot

[@فؤادالزعبي-د2و]

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

[@HaseebElectronics]

Thanks a lot for your valuable words 💞

[@nickgama1594]

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.

[@shekharvartak1306]

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]

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

[@ministeriomundialliberando8403]

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.

[@monimonish302]

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]

Same I am also not understand this values please guide

[@Rama-po6xw]

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

[@manjitkumar6510]

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

[@HaseebElectronics]

special thanks dear Manjit. best regards

[@rainbow0203]

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

[@mohammadhasanshokoohi7150]

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

[@HaseebElectronics]

best regards

[@MdRubel-rz8nl]

Assalamualikum boss, Alhamdulillah for present a verry useful lesson.

[@TYGAMatt]

The best explination on the Internet. Super helpful.

[@HaseebElectronics]

best regards

[@kainatamna7372]

Very nice and informative sharing 👍

[@stevenyamada70]

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

[@chinnarao326]

Resp Sir! Dhanyavaadh Sir. -- ChinnaRao Paderu Andhrapradesh

[@SMV1972]

Спасибо, за прекрасный урок и понятное объяснение!

[@HaseebElectronics]

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

[@SMV1972]

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?

[@mihaidrug7148]

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

[@Rama-po6xw]

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]

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]

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]

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

[@prabirsenchowdhury3778]

Sir,many many thanks. You are great .

[@pradeepmaurya9321]

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

[@kabandajamilu9036]

May Almighty ALLAH reward you thanks

[@kabandajamilu9036]

Asalm aliykum bro

[@pradeepmenaria7999]

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

[@ArjanvsTheWorld]

Super diy video Haseeb.

[@HaseebElectronics]

best regards and special thanks

[@lifefun3926]

Thank you for information. Greetings from Turkey. 😊👋

[@HaseebElectronics]

best regards

[@manhardanmahedu3765]

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

[@CuisineWithShahida]

MashaAllah very nice uploading👍 Stay blessed stay cnnctd🤝👍

[@TheTwinsDay]

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

[@AntonioSilva-ng6xt]

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

[@rahulpatelgujratahmedabad3497]

Good tiching karte hai 👌👍👍👍👌👌👌👍👍

[@HaseebElectronics]

thanks a lot

[@oumisra]

Beravo 3elik akhi mowaf9

[@supersilve]

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

[@HaseebElectronics]

You are welcome!

[@k3lanka]

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

[@DelmaHole]

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

[@ARA-ENGLISH]

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

[@AaoSikhen]

Good morning bhai . very useful and informative video

[@dreopro5611]

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

[@HaseebElectronics]

You are welcome

[@AntonioSilva-ng6xt]

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

[@hamaskaka8635]

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

[@HaseebElectronics]

please accept my best regards and special thanks

[@فؤادالزعبي-د2و]

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]

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

[@ryyhjy346]

شكراً جزيلاً على الشرح الرائع

[@HaseebElectronics]

thanks a lot. stay blessed

[@silviutudose7868]

Excellent explanation, respect from Romania.

[@HaseebElectronics]

Many thanks! and best regards

[@anthonyselby8337]

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?

[@merittechshop]

Very clear explanation, thank you

[@mortenlund1418]

Thanks for explanaition. Perfekt

[@HaseebElectronics]

best regards

[@instrumenttechnician6528]

Nice information video

[@mahbuburrahmanrahman2677]

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]

You are most welcome best regards and special thanks

[@user-pq5tz5pn4g]

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

[@ExtcWorld]

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.

[@hashiraleezey5154]

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

[@mohamedantri9433]

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

[@HaseebElectronics]

thanks a lot dear brother

[@mohamedantri9433]

Think you so much great dear brother...

[@khanlalavlogs]

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

[@vijayakumarkumar9190]

Very good information sir thanks

[@coloradowilderness3139]

Your method is Amazing.

[@HaseebElectronics]

best regards

[@mashun-o4d]

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?

[@Ayeshainthekitchen]

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

[@olivierj.2435]

Awesome video thank you very much

[@Telectronics]

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

[@MathsGuru.2023]

Great work sir.

[@peckelhaze6934]

A very interesting explanation.

[@specialvlog6757]

Good work sir

[@jboy4real]

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

[@kamleshkumardehariya9089]

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

[@HaseebElectronics]

Thanks and welcome

[@AnimalWorld-mv6by]

شرح ممتاز واضح جدا

[@PRASHANTTKUMAR-gi9nd]

123👍 Impressive teaching regarding modern technology

[@MrKumar-il4xh]

Thanks for posting this video.

[@HaseebElectronics]

You're welcome

[@sheekbikdiy1993]

Very beautiful, artist👏👈👍

[@gunwantthakare5096]

Very good

[@HaseebElectronics]

thanks a lot

[@AbdulMomenZargar60]

Good Morning & All The Best My Dear Brother

[@oswaldocunha9455]

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 ?

[@ministeriomundialliberando8403]

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]

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]

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

[@saicharan8696]

Nice explanation, thank you🙏💕

[@HaseebElectronics]

i am thankful

[@amberslife]

Great upload 👍

[@deepakbhangadia8693]

👍🙏 god bless u

[@HaseebElectronics]

thanks a lot stay blessed

[@Electronzap]

Good explanation!

[@kahitanongmaisip9358]

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

[@jamesmchilufya3123]

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

[@DesiSwaadh]

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

[@electronicstipstricks9235]

Thank you sir this video it very useful

[@IndianFlavor]

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

[@jamesmchilufya3123]

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]

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

[@rmjnm]

You're great sir, thanks.

[@sudheerkumar5966]

Very good sir

[@mwenedatacassim3064]

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]

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

[@wegi9621]

great! thanks

[@HaseebElectronics]

You're welcome!

[@LousyPainter]

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

[@naingaunglwin833]

do you have any recommendation for calculation formula (books,etc). I want to study in details.

[@bartdepauw1156]

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

[@freedomisfood6966]

so greattttttt.thanks master i have a problem 🙏🙏🙏.please answer.my resistor why is been destroyed.

[@HaseebElectronics]

increase resistor value. and may be it is low wattage resistance than the required wattage. check diode in series as well check capacitor as well

[@jboy4real]

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

[@beaver3517]

In 12v 10 amp smps i want to run 90 watt load, In my calculation PDR1 is 9 watt, i dont have 9 watt resistor and the value is 126 ohms, but in industrial smps i see there the snubber r1 is 57k ohm 2 watt, how to adjust this value of wattage and ohms, and is the value of R1 in ohms or Kohms?

[@sunitaskitchen1627]

36 great uploading bhai 🙏

[@kahitanongmaisip9358]

awesome your my idol

[@kahitanongmaisip9358]

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

[@halleibranee3026]

Perfect 👌

[@HaseebElectronics]

thanks a lot. stay blessed

[@straightpath5]

assalamalkm. bro will putting snubber resolve ringing issue I am facing in my smps.my uc 3843 destroyed and blew off zener protecting gate....also is putting snubber on output rectifier is it good? and since rectifier diode is heating wasting power is it acceptable to put some clamp to take care of reverse recovery

[@PatrickRibbsaeter]

thanks, master

[@jmu9969]

Hi; Voltage across Snubber resistor (100k Ohm) is 404V and it’s getting hot in an igbt welding machine . Any ideas would be appropriated. Replaced resistor, capacitor and diode and still have same problem.!!

[@aeropeoplellc8160]

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]

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

[@bveeraanilkumarreddy]

Hi sir Please can you make video on bridge rectifier smoothing capacitor capacitance value and also smps output capacitor capacitance value calculations