SMPS Basics | Switch Mode Power Supply Explained | Basics Guru

SMPS (Switch Mode Power Supply) explained.
SMPS is a very important topic and it's of great use in any industry. It is replacing linear power supplies because of its superiority and the wide range of advantages it has.
I have explained it with appropriate waveforms and suitable diagrams.
If you want us to make more videos on basic stuffs then please write in the comments section.
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Hope you all enjoy the video.
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Basics Guru

[@diyagautam6556]

thank-you so much man you are a savior
I have my viva in 5-6mints Nd this video really helped me to survive
and I m sure now em gonna rock the show😂

[@aryansingh8769]

ab tk to apka btech hogya hoga

[@francismannion7075]

Thank you for a clear and easy to follow explanation. I look forward to your next talk.

[@onyinyechichukwuma689]

I loved this!! I came with the intent of learning about the use and reason for SMPS, and I ended up learning that and more. Thanks for that. Keep up the good work.

[@radhika3480]

@Camdyn Malakai 🖕

[@bhaktikulkarni5089]

my book made it complicated. didn't know it was this easy. thanks :)

[@1997_INDIAN]

Yaa exactly

[@VikasYadav-gt4pg]

Love you bhakti

[@drusilaseguraperdomo198]

@@1997_INDIAN nb

[@pinkplonker8776]

Thanks for the video. I finally understand how a SMPS works.

[@shahidraza83]

presentation is easy to understand ,quite useful video for us people, Thanks alot

[@bms6956]

Excellent explanation

[@aishwaryadaharwal8982]

Thanks for these video it's really good 😊😊😊

[@lifeboy6969]

First of all, I will say you did a great explanation but I have little disagreement here at 4:33. Are you sure , feedback used to control chopping "frequency"? I don't think so , rather it used to control "duty cycle" only , keeping the chopper frequency same throughout the control process. .

[@habtamusium8646]

thank you ! i am blessed , God bless you richly !

[@anushakt936]

Thanks you I completely understand make video of other topic of electrical engineering like this

[@manojaa8338]

👌Nice explanation

[@mehdihafezi5671]

Thanks for sharing this tutorial, it helped me a lot :)

[@basicsguru5243]

Subscribe for more interesting videos or suggest if you want on any specific topic :)

[@ashokkoli9977]

Very precise and understandable.

[@dailylifeknowledge4431]

Plz suggest me a books that covers everything of smps from every components to every parts of circuit and design ...

[@deepafrancis8848]

Thank you for the explanation.
But I would like to have a small clarification.
How can the transformer used in SMPS, step down the pulsating DC? Usually transformers are used to step up or down AC.
Please reply.

[@basicsguru5243]

Deepa Francis Transformers can convert any varying voltages. It need not be an AC voltage at the input. Any varying value can either be up or down converted.

[@Alan_vital94]

They use a transistor to vary or fluctuate the DC voltage for transformer after that transformer gives the desired waves and then again it coverts into DC by using a rectifier and filter.

[@ranjithsettu1862]

Deepa Francis hi smps explain teacher

[@akashkarmakar1572]

@@basicsguru5243 transformer can not work with DC as per the basic Faraday's law, if you apply any DC voltage to any transformer then its core will be saturated and transformer will burn.

[@surendrarathour2369]

@@basicsguru5243 TRANSFORMERSNOT WORKING ON DC SUPPLY

[@arafath8380]

Thanks for the Explanation.

[@balakrishna9288]

Simply suprbb

[@travellingwithsrikanth1041]

nyc information,,,,very helpful

[@gardentechniques5246]

Thanks dear it's very much important for me

[@titan777yt]

Nice explanation it helps me for seminar

[@CrazYComedY321]

Thank you bhaiya this explanation is awesome.

[@hariharan977]

Good explanation,thanks, share me explanation video about components normally used in amps and their functions

[@dadtechmech]

nice tutorial very informative well explain

[@aartisheokand2958]

Thanku sir for the excellent Explaination😊

[@MahakaalAstrologyservices]

Overall awesome information but tell me one thing that Transformer works upon an alternating current not on direct current ,then how we can give the pulsating DC to Transformer as in its output for step down ?? please kindly elaborate

[@priyankapatelpatel8641]

It is true that we can't use Pure DC with transformers .but we can use pulsed(pulsating DC) with transformers.

[@MoHiTKuMar-id6ue]

Best one 👍👍👍

[@poochie1480]

kool. learning made simple

[@radhika355]

Basics guru, (shashwat singh)..U really explained well..Can you plz share videos of Wien bridge oscillator, op- amp, function generator..Bt plz in some of the following days..As exams are approaching....Hoping for early response...

[@basicsguru5243]

Radhika 123 sure will try to make some.

[@radhika355]

thank you so much..hope u do that in this week ...

[@priyankakannan7194]

thank you... its really interesting.....

[@stevensteel8617]

Thank you for this presentation. It was nice to review how SMPS work and I see you have a good understanding of this. One query though. I thought you said that the feedback modified the frequency of the PWM. It seems to me that what is modified is the mark-space ratio of the signal, which modifies the average voltage of the output. If you modify the frequency then the average voltage remains the same. Perhaps I heard wrong :-)

[@rajusuvvari304]

Thanks sir your explaining veray cliair

[@basicsguru5243]

You're most welcome

[@sireesh9]

thank you

[@chintusenapati4698]

Concept clear properly.
Please sir explain in Hindi

[@Teja_vi]

superb explaining sir....

[@nilsaurav]

Thanks

[@mohamedelbrami3151]

Thanks for the video. PLEASE i need your Help ....Im looking for a universall Mosfeat Driver Circuit shematic ....for power supply that provide 5V 30A

[@shazadkhanfu]

thanx a lot...can u make a video on buck switching regulator

[@basicsguru5243]

Sure will make one really soon :)

[@basicsguru5243]

th-cam.com/video/IOWMxDXNXC8/w-d-xo.html Buck Regulator Explained. Sorry for being so late.

[@shaikchandini2887]

Thank you so much bhayya

[@kapilgupta4674]

Explanation is quite good,
but what is the need of chopping the dc voltage ??

[@basicsguru5243]

Kapil Gupta DC voltage has to be down converted. So by chopping we change it to pulsating dc and apply to the transformer for down conversion as we can not give dc voltage as the input to the transformer.

[@subinmathew667]

I think u fastforwarded the video

[@chmaheshnagoor241]

nice my problem solue tq

[@bonifacemwema3353]

Its so detailed and educative explanation pliz share your link sir

[@narottamchakraborty2951]

Nice!

[@akshayzambad4554]

Nicely explained 👍👌

[@panplayer]

Great job!

[@arunmathew3047]

thank u ...its very effective

[@benjaminb4056]

Thank you for the informative video. It was very helpful.
But i think its the duty cycle of the switched DC that gets adjusted, not the frequency. Could you confirm?

[@bashaaksema94]

That is true by my knollege

[@subinmathew667]

Frequency is synonymous to duty cycle

[@malatheshmmg6995]

Thank you sir....
what is reason for SMPS burning

[@anandhuudayakumar3390]

nice presentation, was very helpful

[@mohankrishnabarri7344]

Super explained

[@IdeasVashi]

Sir the feedback will increase or decrease the pulse width - only then we can regulate the output. Just increasing or decreasing the chopping frequency will not change the output voltage. Am I right ?

[@basicsguru5243]

yes you are right. Feedback changes the pulse width.

[@nunnasarath1675]

sir i cant understand of smps topic just simply say what is smps in basic way.... easily understanding plzz reply mee sir...

[@imangoswami5605]

Can smps be connected in parallel connection? If so then pls explain.

[@SanjeevKumar-fk7wt]

Nice explanation

[@munibanourin9389]

thanks sir

[@qdmir22]

liked. commented and subscribed bec u deserve it.

[@tonyperry6702]

Good video

[@aditshah6504]

THANKS

[@basicelectronics1106]

Which kind of rectifier is used at input to handle 230 V ac input..??

[@electronicsolution9787]

Good

[@raviranjansahay627]

bro can u explain how the xtsformer is working on dc in the ckt?

[@priyankapatelpatel8641]

It is working on pulse DC. you can find information about pulse DC on google (articles on Wikipedia are available)

[@satishkumarojha5377]

Sir Kya hum ya long question m likh sakte h

[@electronicsthedeep7122]

thanks alot

[@aneeshvaidya7838]

Thank you

[@kamleshchavan7451]

SIR please explain pwm circuitry and isolation circuit of SMPS

[@mentalhospital9812]

Thanks sir

[@SHL679]

Nice..

[@pradeepdubey4104]

If rectifier input voltage 110V AC how much voltage coming....plz reply

[@gopikodali9615]

Anna super

[@sambitkumartripathy2273]

Not satisfied how transformer step down dc voltage

[@mahimaverma8391]

Thankew

[@malatheshmmg6995]

Thk u

[@ragnargaming8029]

sir can u plz send me the presentation (ppt) of this video

[@yerrajagan3427]

How SMPS can supply different voltage levels to different chips in mother board

[@harshalsawant6479]

can u plz tell the work of pwm oscillator

[@shahidraza83]

can u please provide us video OF UNINTERRUPTED POWER SUPPLY

[@sreejitmahanta304]

how much part of output voltage feedback ????

[@MSKtechy]

nice

[@nishantkashyap8377]

sir what is the difference between smps ac power supply and smps dc power supply

[@basicsguru5243]

nishant sometimes DC power supply is directly given to the chopper of smps instead of ac and those are called DC supplied smps.

[@nishantkashyap8377]

thank u sir.

[@amp_001]

Sir, what's the difference between smps and regulated power supply rps

[@youseff500]

Switch mode power supplies use step down/up converters, where as linear power supplies use linear voltage regulators.
Linear voltage regulators have lower noise/emi, but can't handle as much current. They aren't as efficient, as whatever voltage above the regulator rating gets dissipated as heat.
SMPS work using inductors, which store current in their magnetic field. They barely waste anything by heat, but they create more noise/interference. Low power DC appliances use linear because they're cheaper, while pc PSU's use converters because they can output more current and higher voltages, which means greater wattage.

[@ayankargupta6222]

how transformer can work in dc??it should be ac by using mosfet.then after step down ac then it need to convert dc

[@anoopdawande7902]

what is the use of PWM oscillator in the f/b ckt.

[@basicsguru5243]

Anoop dawande to control width of pwm pulses used for chopping the high voltage DC.

[@anoopdawande7902]

can you email me an explaination in detail? ([e-mail])

[@carlnikolov]

Can you make more videos? You only have three.

[@aishayussuf3420]

Bhai we still need you please proceed

[@Face_of_Bangalore]

♥️

[@childrenfunvideo3877]

how can transformer work on dc ..because transformer work only on ac

[@jubayerkhan1832]

this vedio will not frutfull for beginer like us. pls make another vedio what explain smps working prossess. pls pls pls

[@surajagrawal3498]

Why did you stop uploading videos

[@girishchand7725]

Can anyone make 40volt10amp SMPS?

[@neutrino1115]

What do you mean by EMI in the cons of SMPS?

[@basicsguru5243]

Debalina Bhaumik electro magnetic induction. It runs on very high frequency, hence generating EMI which could harm sensitive devices.

[@neutrino1115]

Basics Guru ..ok..thanks...

[@subhashbharti6258]

Debalina Bhaumik hi
Hi
Very good

[@youseff500]

​@@basicsguru5243 *Electromagnetic interference. It's referred to as "noise"--not in the audible sense.

[@jugnu361]

Are all SMPS Isolated ??

[@basicsguru5243]

Sachin Singh No.. some topologies are non-isolated using single inductor.

[@VISHALBILARIYE]

Please explain in hindi, hindi is also an respected language

[@erticyusa5928]

Why you convert AC to DC to AC and DC again? Why?

[@youseff500]

Bro.. when people say "noise," they're referring to the level of EMI, not noise in the audible sense..
SMPS' are more noisy than linear power supplies because they're utilizing inductors generating magnetic fields. It's why they have their own isolation circuit. Audible noise is irrelevant; linear power supplies are just as audibly quiet to humans.

[@saranyam5105]

Audio can still be better sir

[@MrRanabirghosh]

the video is awsm! and i like to contact u, do u guys have any fb id or anything else that I could contact you!
thanks in advance!😊

[@basicsguru5243]

[e-mail]
This is our gmail id. You can contact us here.

[@MrRanabirghosh]

Basics Guru thank u soo much

[@lvrajesh7820]

please sir ye video Hindi me banaye please

[@mininandakumar9865]

Excuse me,but how can a dc voltage be pulsating.

[@mininandakumar9865]

At the section chopper

[@bhairavabhatlaanuraag9522]

Transformers can't step down dc signal

[@Vengeance-cm2pt]

transform steps down pulsating dc not dc and pulsating dc have some ripples which is a sign of ac current

[@wariskn7096]

bro you are wrong!!! there will be no change in the frequency whether the output voltage is Inc/Decrease than the desired voltage...the change will be there in the dutycycle of the frequency.....that's why it is defined as pwm oscillator in your circuit....

[@basicsguru5243]

waris kn That's what i said bro. The change in PWM duty cycle will cause the output frequency of chopper to vary.