{510} RCD Snubber Function in SMPS Explained - RCD Snubber in Switch Mode Power Supply

[@vlogdiaries4u]

Kia bhaai ap offline pehlay share kartay hain ... I always watch first but my comment is not first 😔

[@HaseebElectronics]

yes i share sometimes on my social network.

[@janasmeal7916]

ma shaa Allah superb and valuable informative lesson on RCD snubber and its importance in switch mode power supply

[@HaseebElectronics]

Thanks and welcome

[@zahidabbasi566]

Nice deeply explained video. Thanks brother jazakAllaha.

[@HaseebElectronics]

it is my pleasure stay blessed

[@LedYesRameshruge]

RCD snubber circuit working Very terrific explained thanks teacher thank you so much

[@HaseebElectronics]

You are welcome please accept my best regards

[@aneesrazakh]

Good and apretiating informative knowledge stat blessed and safe

[@nihatkosova8436]

Your education is very nice and very effiency, thanks again

[@Zhddwd60]

Very nice explaination Thanks brother JazakAllaha.

[@susantaatha6468]

Beautiful knowledge sharing.

[@HaseebElectronics]

best regards

[@hares14]

وعليكم السلام ورحمة الله وبركاته 👍 Excellent Explanation of snubber circuit Regards

[@HaseebElectronics]

wa alaikum salaam thanks for your valuable appreciation

[@mohamedroomy1985]

Masha allah priceless teaching. I love the way you explained.

[@HaseebElectronics]

best regards and special thanks

[@HarlavanisPanagiotis]

Amazing video dear friend, have a happy day!

[@HaseebElectronics]

best regards and special thanks

[@Raphaelishaque789]

Beautiful sharing.

[@yesudhassherin555yesudhass5]

Very useful for myself Thank you so much MASTER 💓 🙏

[@HaseebElectronics]

You are very welcome

[@vijayakumarkumar9190]

Very good and useful information sir thanks for sharing this knowledge to us

[@HaseebElectronics]

So nice of you it is my pleasure

[@greenyelectronics]

thanks for sharing a very informative video

[@HaseebElectronics]

My pleasure

[@coloradowilderness3139]

Always for you. Need Latest ATX APFC Computer power supply tutorial .

[@t.e.celektronik5020]

Assalamualaikum sir , big fans from indonesia 🇮🇩

[@lupojacobo9892]

Shukriya Maestro. Blessings

[@HaseebElectronics]

best regards and special thanks

[@zakiausa]

Salam brother how are you doing great job 👏 🇺🇸👏you showing work

[@HaseebElectronics]

thanks a lot dear sister

[@AbdulMomenZargar60]

Salaam Janab Bhai Sahib Good Luck

[@hiralifestyle]

nice bro👌👍🌷helpful video

[@ARA-HOUSE]

Lk 11 brother 👍👍👍😊

[@rajeshnandgave3105]

Good explanation Thanks Sir

[@HaseebElectronics]

You're most welcome

[@carolinediyandvlog]

127 fantastic information video ☺️ have a great day and be safe

[@HaseebElectronics]

best regards and special thanks

[@daryo_pl]

Hello, thank you so much for your explanation!

[@HaseebElectronics]

you are welcome dear friend, i hope everything is clear. best regards and special thanks

[@BhajanShradha]

Superb video 👍👍👍👍

[@mukhriz93]

Thank you. Please continue sharing your knowledge.

[@HaseebElectronics]

best regards sure i will try my best

[@muhammedaflah7920]

Good explanation👍

[@ezeoluchukwu5104]

This is a great lesson and a nice tutorial. please can one use only RC-snubber network and what is the effect on the system

[@sandipbasu3795]

Please provide snubber calculation formulas for different topology. Especially for PC power supply type SMPS. Thanks for knowledge enriched lots of videos.

[@rahulpatelgujratahmedabad3497]

Good tiching karte hai 👌👍👌👌👌👍👌

[@HaseebElectronics]

thanks a lot

[@boybravo689]

Thumbs up done sir

[@HaseebElectronics]

thanks a lot dear brother

[@lemon_noor]

Good work 👍

[@muhammadishtiaq24]

Good job done bahi

[@HaseebElectronics]

best regard

[@suvarnagunde4565]

Excellent 👍👍👍 Sir

[@HaseebElectronics]

best regards

[@AmmaraGhafoor76]

Mashallah g good job...

[@elavarasanputhinan772]

Very thankfull sir

[@HaseebElectronics]

best regards and special thanks

[@electroniquepassion]

Nice 👍

[@HaseebElectronics]

best regards and special thanks

[@sudheerkumar5966]

Very good sir

[@HaseebElectronics]

Thanks and welcome

[@AbdulMomenZargar60]

Liked Very Much # 173

[@Versatiledani]

Excellent work

[@ShinchanShinchan-t6x]

Thanks sir yhi Samajna tha

[@vlogdiaries4u]

anyways good one ... still watching

[@HaseebElectronics]

best regards and special thanks

[@saukhilalnishad3370]

Very informative video. Sir, what will happen if capacitor fails i.e. open circuited

[@HaseebElectronics]

if capacitor becomes open, then it provides stress on MOSFET, MOSFET and transformer core will heat up

[@rolandberendonck3900]

Thank you!! 👍

[@HaseebElectronics]

You're welcome!

[@narsinhsunuwar9890]

Excellent 💐🙏

[@HaseebElectronics]

Thanks a lot

[@bhajansbyguptani8114]

GOOD EVENIG

[@mtrltoolman]

Hello sir. If this RCD Circuit goes bad did it cause the smps circuit making clicking noise and burning the mosfet?

[@HaseebElectronics]

if the diode is short circuit, it causes to drop the output voltage if capacitor beomes short circuit, it damages the diode, mosfet and smps IC as well if the resistor burns out, then it cause to drop the output voltage with fluctuations

[@waytoheavenwithtahirwasim1961]

Awesome

[@jetamorsolovideos]

I have trouble shoot a client Milwaukee battery charger the problem is that the ppm ic keeps on blowing when you charge a battery pack or if you turn on the power with the battery is on the charger. The culprit is the RCD snubber circuit the mylar capacitor has lost its capacitance (0,0047uf). Replaced the capacitor and the PWM ic, now it's working!

[@HaseebElectronics]

yes bro. these small parts sometimes play a big roll in destruction.

[@arunkumar-bh2dp]

is it possible use like tank circuit without diode. you explained before reasonance capactior series with inductor and resistor

[@gayanwijethilaka9135]

Sir , can you do an explanation of MC44608 IC function in a next video? We want to know the function of that IC.

[@samuelphyffer8888]

Hi haseeb!my samsung bn 44-00685b smps high volt diode and 2 mosfets gets very hot fast.what can be the problem?

[@Mirfazelzade]

❤️❤️❤️

[@HaseebElectronics]

best regards and special thanks

[@TYGAMatt]

Thanks for the information. How to calculate values for the RCD components?

[@HaseebElectronics]

best regards please check video number 284

[@mirzazeshanahmed7603]

It can be used for any topology driving by igbt 1200/200a

[@TYGAMatt]

@@HaseebElectronics thank you Sir

[@technicalknowledge2392]

I have a smps of lcd monitor display I checked it with dmm then output was fine. But when connected the lcd. Lcd not turning ON. Then I replace the smps and lcd turned on. So it is confirmed that problem is in smps but smps is showing full voltage at its outputs correctly . What is the problem with smps? Please reply.

[@vijayramakrishnan6838]

Sir thanks , please give the circuit values and demo

[@ManasKumarMajumder-ip4dp]

I think that the improper function of snubber ckt causes the blinking of a🎉 LED light.

[@nayanjagirdar8408]

👌👌👌👍

[@HaseebElectronics]

best regards and special thanks

[@tecjoydev6993]

lm339 Or ka7500 dono 1 sath lage ho us board k smps ko variable kaise banaye uske upar 1 video

[@mohammadarabalhajyahia3753]

It is understood from this analysis that this circuit use only in fly topology is it true thanks

[@HaseebElectronics]

exactly. this type snubber is used in Uni-polar topologies like Buck Regulators, Flyback, Boost converters

[@mohammadarabalhajyahia3753]

@@HaseebElectronics thanks brother

[@hichamtassi1753]

Salam M Haseeb, very informative video. I have a led driver 12v30A where under load always burns the same left 13009 transistor under load. After changing it many times now i have only 3v output as you mention. Could it be the snubber network ?

[@HaseebElectronics]

most possible chance is snubber circuit, resistor, capacitor or diode

[@hichamtassi1753]

@@HaseebElectronics i will check on this. Thank you for the hint. Salam Aleinum from Casablanca, Morocco.

[@avalavenkatesulu1889]

Is it possible to design a SMPS Circuit without having snubber circuit and having MOSFET and pwm Ic. I waiting for your reply.Thank you sir.

[@HaseebElectronics]

yes dear we can design using a simple transistor based oscillator

[@avalavenkatesulu1889]

@@HaseebElectronics why I am asking you this question because I noticed that in led tv which having output voltage is just 12v and this SMPS is not having snubber circuit and having MOSFET and pwm ic. Thank you so much sir. Good night.

[@azrysound]

can snubber be made on SMPS fullbridge? Sir.

[@jetskyamorsolo5328]

Hi Sir what will happen when the resistor fails in a snubber circuit?

[@HaseebElectronics]

1. the output voltage will low 2. mosfet will heat up or burn out

[@jetskyamorsolo5328]

@@HaseebElectronics one more thing I am trying to fix a Ryobi battery charger it has a smps circuit. The problem is voltage fluctuations in secondary and also in primary. I have replaced the pwm ic and the Mosfet but still fluctuate. Snubber circuit goods in primary and secondary checked also other smd resistors near mosfet and pwm ic are all good. What's my next step to check I am running out of options.. hope you can help me. Thanks!

[@SAMOSONIC]

Please can mosfet get over heat if snubber is bad

[@محمدرضاشهنازی-ر7و]

Thanks

[@HaseebElectronics]

Welcome

[@user-sv4pg9mq2w]

A.o.A sir how to find feric core transfermer ferquncy without data sheet Sir kindly explain

[@user-sv4pg9mq2w]

And sir plz make universal smps swing module for any fericcore transfermer Using 3843

[@ajaykumartargotra2768]

Haseeb sir ,when I disconnect power, 390v is talking too slowly to discharge

[@HaseebElectronics]

you can connect a bleeder resistor across the capacitor (use 200K to 1M) connect it permanantly

[@ajaykumartargotra2768]

@@HaseebElectronics because tv backlight is trying to turn on, but keep blinking..I thought maybe some problems in primary section...

[@HaseebElectronics]

no there something else

[@navneetsingh2600]

Sir hindi ma b btayie yeh

[@HaseebElectronics]

yes brother mein ne record kr li he. jaldi (haseeb electronics urdu) per upload karoon ga

[@navneetsingh2600]

@@HaseebElectronics thankuuu sir mainnu subscribe kiya hai channel ko aur apne frnds ko b share kiya hai channel sir all pcb tracing kaise kare oska b video upload jldi kryiega sir

[@zahirkamel924]

Please lnk304gn keep getnig hot in power supply and cut off, i replace it samme problème

[@HaseebElectronics]

please check the snubber components check pin number 3 may be it is getting more voltage than the rated voltage you can add some resistance. also check capacitor on pin number 3 check pin number 4 components as well

[@hassanhassan-wj9eu]

please snubber circuit in buck converter

[@bussi7859]

Furniture warning glum glum braiem

[@HaseebElectronics]

dear i am unable to understand your comment. if possible can you write in some easy words, please

[@dn7918]

Why capacitor used?

[@HaseebElectronics]

because resistor cannot discharge all the current in sametime to assist the resistor, the capacitor is used. it stores the remaining charge while the resistor is drawing the current in this time the switching mosfet then turns on again, so the capacitor will now discharge through the resistor and will becomes empty for next cycle. if we don't use capacitor, then a low ohmic value in high wattage will be used, which will cause to dissipate heat in resistor, diode and transformer winding as well, while a nicely designed RCD snubber will not dissipate power and transformer winding will become zero without any excessive heat generation during the collapsing magnetic field best regards

[@dn7918]

@@HaseebElectronics thank you so much sir.. in RC(series) snubber circuit C is acts like short circuit. Can I replace this by only RC with diode? What is the difference bW both RC and RCD snubber circuit.. ?

[@devran5085]

Gardaşım söylediklerinden hiçbir şey anlamıyorum

[@thankyou7741]

Thanks you for educating us. I see RCD section capacitor receive about 15 voltage in normal conditions. How does it receive such a small voltage from extra 600 voltage after rectification. And does that capacitor negative line will always be the mains positive rails? (300V). I have that RDC resistor showing mega ohm with some burnt sign.. what is the value of this resistor usually?

[@HaseebElectronics]

actually these are not 15 volts, if you will check on oscilloscope, these are around 90-300 volts. actually when we apply 300 volt switching pulse to transformer primary , primary winding behaves as a high value resistor due to its inductive reactance so in off period, the discharge path is through resistor as well. and the capacitor also receives that pulsed voltage. when we check voltage across the capacitor, it will show low voltage, because the multimeter doesn't have ac good ac response on high frequency signals actually these voltage are more than that

[@HaseebElectronics]

the resistor value is above 100K and wattage depends on the power value of the converter

[@thankyou7741]

Sorry. I was confused RCD capacitor with auxiliary winding capacitor. Can you describe the normal voltage of this two capacitor?

[@user-sv4pg9mq2w]

Sir ap mera msg ka reply ni karta

[@HaseebElectronics]

arrey nahi bhai aisi koi baat nahi. mein bahut se message nahi dekh saka. q k meri left eye mein problem he, to last 4 month se me comments / whatsapp message reply nahi karta. kabhi koi message ko reply kar leta hoon. q k mujhey doctor ne laptop, mobile use karney se roka hua he agr aap ka message nahi dekh sakaa to I AM SORRY FOR THAT meri aankh mein injection lag rahey hein, 15 december ko meri left eye ka test he dua karein k test achha ho jaaey

[@user-sv4pg9mq2w]

@@HaseebElectronics sir ab ap ke eyes kasi ha

[@HaseebElectronics]

@@user-sv4pg9mq2w abhi bahut achhi hein. 15 december ko test he abhi

[@user-sv4pg9mq2w]

@@HaseebElectronics chla sir Allah khair kary gha

[@user-sv4pg9mq2w]

@@HaseebElectronics sir mera ak swal ha ka smps ma choper hota ha in ke ferquncy ka kase pta chla gha mean mera pass kafi choper transfermer ha ma Us3843 ka sath un ko chlan chahta Choper ke ferquncy bgair data sheet ka pta chal skti ha