How mobile charger SMPS flyback circuits work, FBX Learning, circuit diagram explanation of charger

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How mobile charger SMPS flyback circuits work, FBX Learning, circuit diagram explanation of charger.
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@SALESENGLISH2020 3 жыл бұрын

Honestly, I have asked at least 50 engineers and professors, "How does a modern charger/adapter work? Why is it so much lighter than the old ones? How does it cool down after fully charging the battery? " Surprisingly, not a single one could answer. As if they have never learned how SMPS works. Then I had to tell them how it works. You are the first one who explained it correctly and simply, plus added a few things more than I knew. Thank you. I hope you get a million subscribers. Then next time, please show the inside of a a broken (old) charger/adapter to make it even more exciting. If I could give you 5 star rating, I would have given you 7 stars.

@sadunnakipoglu9471 10 күн бұрын

Detaiyed and wonderful explanation, thank you from Turkey.

@melplishka5978 3 жыл бұрын

That was the best explanation of a high frequency smps supply I’ve ever seen. Tyvm. Your a great teacher.

@robinkhan960 2 жыл бұрын

excellent video from FBX Learing and Haseeb Electronics. i am really greatfull to you both.

@anandawijesinghe6298 3 жыл бұрын

Good explanation, but with a few faults, which I point out below: 1. The full wave bridge rectifier does not 'eliminate' the negative half cycle of the supplied 220v power as described but it 'inverts' it so that both half cycles are now positive. A half wave rectifier would have eliminated the negative half cycle resulting in more output voltage ripple and a bigger capacitor to smooth out the ripple. 2. The electrical efficiency of circuit is primarily because the 7805 regulator in the conventional circuit is in fact a power dissipating series resistance conducting the main load current that wastes power. 3. Another primary advantage of the high frequency convertor, is as described, the elimination of the LARGE and HEAVY low frequency voltage step down transformer with silicon steel laminations with a small high frequency transformer made of a ferrite powder core reduces power dissipation. While the small size results from the high frequency as described, the increased efficiency however results primarily from the replacement of the conventional series regulator by the feedback circuit operating at high frequency.

@evansetyawan1990 Жыл бұрын

bro, I want to ask, is the current coming out of the base a negative current?

@anthony4312 3 жыл бұрын

Finally I understand the works behind this circuit. Thank you teacher.

@TheMidnightBlue_369 29 күн бұрын

Great video.

@David-lc1vj 8 ай бұрын

Give me a better understanding of an sm c circuit. Many thanks, section by section description is very helpful.

@asifshah4281 Жыл бұрын

It is indeed an Excellent Vlog about SMPS

@kabandajamir9844 Жыл бұрын

The world's best teacher thanks

@kabandajamilu9036 3 жыл бұрын

The best teacher nice explanation sir

@shalvinthomas9760 3 жыл бұрын

Supper .... explained well.....expect more vediods....👍👍👍

@shabbirmuhammad6035 5 ай бұрын

Way of teaching is excellent

@kennedyodeyootieno5643 5 ай бұрын

Excellent video...Be Blessed🎉

@knownshareit 7 ай бұрын

Very useful and informative.. thank you

@shajithparambath 3 жыл бұрын

Good explanation...expecting more..

@fbxlearning8725 3 жыл бұрын

Sure 👍

@anilpatel1398 Ай бұрын

Very good information

@sam_always 3 жыл бұрын

Very good and understanding. It is helpful for my engineering project.

@fbxlearning8725 3 жыл бұрын

Great to hear!

@kokor7409 2 жыл бұрын

It's the BEST explanation I've seen. I loved the way you explained it step by step AND built up the circuit diagram step-by-step. Having the entire diagram to start off causes confusion.

@josecatugal1028 Жыл бұрын

Best explaination ever.... My students will love you bro....

@Crasy24Hours 3 жыл бұрын

🙏🌾💓very nice teach sirji valubal lesson continue sir poor stundent new electronic fild nice help🙏🙏

@altmcene 3 жыл бұрын

You should do more videos like this. Excellent explanation.

@fbxlearning8725 3 жыл бұрын

More to come! You can suggest us, as well !!!

@dennisdelacruz9253 9 ай бұрын

Nice video tutorial on how smps works. More power

@AbsediqNI 3 жыл бұрын

This is best explanation I have got on the concept. Thanks a lot looking for more stuffs from you and your crew you guys are great.,💯💕

@el-farouqtv7048 Жыл бұрын

Actually, this is the best explanation i have ever come across in terms of the working principle of phone charger. Well done, Bravo dude💪

@danteterano7371 3 жыл бұрын

From the input to the output part of the explanation plus the professional illustration of the schematic is really awesome. You are an exelent teacher. Keep It Up. Thanks and more power to you.

@mrMichaelVola 11 ай бұрын

this was great I never understood the purpose of the auxiliary winding. now I have a much better idea.

@d614gakadoug9 7 ай бұрын

In converters that use an integrated circuit for control the auxiliary winding is normally used to provide power for the IC. The IC can start up through a high-value resistor from the rectified AC input, but it would waste a lot of power to keep the IC going that way. Once switching starts the aux winding keeps the control IC powered. These self-oscillating circuits aren't common in better quality products because they don't perform as well. Their real advantage is that they are cheap and simple.

@kabandajamir9844 Жыл бұрын

Please help us with signal amplification in a clap switch sir we really appreciate your work

@jagdishnawal4080 3 жыл бұрын

Very well explained , appreciate your effort , keep making more such informative videos - thanks a lot !

@jackytangahheng 2 жыл бұрын

very clearly explanation,good teacher.

@parth7450 2 жыл бұрын

Very useful & knowledgeable information

@factss525 3 жыл бұрын

I search this type of knowledgeable video about how circuit perform any action. I can't find and lastly I found this one but some video post on this channel related to this I expect more to understand all types of circuit easily about how the circuit work.

@mukeshkumarmeena6248 3 жыл бұрын

Very nice explanation, thanks sir

@rodelsecreto9440 3 жыл бұрын

Thanks for your explanation, very clear and easy to understand, I hope you'll make more videos like this, and basic electronics. More 'amps' to your channel.

@jnc5255 2 жыл бұрын

Wow this is a very nice technical educational video...thank u very much

@blackartista 3 жыл бұрын

This is a great video for smps beginners. Hope you intend to go further on smps

@carlosgomes6074 10 ай бұрын

Thank you sir for the good explanation.

@gopalakrishna1916 2 жыл бұрын

WONDER SIR ONLY FEW CAN MOULD OVER MANY COULD MAKE EVICT THE THIRSTY LEARNERS....OUR BLESSINGS, IF WE THE INDIANS LISTEN SUCH LECTURES MAKE IN INDIA WOULD NOT BE A DREAM.......

@ahajet3450 2 жыл бұрын

Very useful video sir....and. Good explanation

@landonjackson284 8 ай бұрын

This was gold! Thank you for being a great teacher.

@narayanans111 3 жыл бұрын

Very good explanation & clearly I am understanding .Thanks

@muinmohammadmozammel281 2 жыл бұрын

in depth explanation. Also, nicely explained.

@shyamalibiswas2240 3 жыл бұрын

Very informative sir. Thank you 🙏

@asaizanm Жыл бұрын

tq sir.. you are a great teacher,

@PianisticArdour1105 3 жыл бұрын

Bravo🎉👏👏 Happy new year 2021

@fbxlearning8725 3 жыл бұрын

Thank you! You too!

@PianisticArdour1105 3 жыл бұрын

@@fbxlearning8725 🙏

@gangadharnandi1724 3 жыл бұрын

Nice explanation .Thanks sir.

@gregory3617 3 жыл бұрын

Thank you for this vidéo, good explain to this circuit. Good job

@q12x 3 жыл бұрын

Very good explanation ! Thank you.

@waadissa 2 жыл бұрын

you are the best big thanks from Iraq

@muhammadaltaf7261 2 жыл бұрын

Much appreciated sir. Thanks a lot for very good explaining sir

@nelsonfernandes3929 Жыл бұрын

YOU SIR MADE ELECTRONIC SIMPLE AND INTRESTING THANKS 😊

@abdulwahid8825 Жыл бұрын

Very nice explanation. One thing you forget to tell. The capacitor value near T13001 Transistor. You have written it there but it is not clear and can't be read. Please specify. Thank you very much.

@Bianchi77 2 жыл бұрын

Nice video, thanks for sharing, like it :)

@stevetobias4890 3 жыл бұрын

Very cool, much more efficient I think with my limited understanding.

@dipakbarik8456 2 жыл бұрын

Very very nice explain

@milindkulkarni1208 3 жыл бұрын

Nice Explained

@muhwanatimothy2115 Жыл бұрын

Thank you very much,but is it ok to use a transistor instead optcoupler, and what determines the frequency of the oscillator circuit please

@cocosloan3748 3 жыл бұрын

Excellent explanation

@shaikbilal8037 3 жыл бұрын

Good way of explanation Please continue sir

@fbxlearning8725 3 жыл бұрын

Glad you got interested.

@ronronchristophertungol95 3 жыл бұрын

This is veyr good !!! Thankyou for the explanation ❤

@fbxlearning8725 3 жыл бұрын

Glad it was helpful!

@ronaldos3738 3 жыл бұрын

Great job, thanks

@CannonballCircuit 2 жыл бұрын

you've earned yourself a subscriber!

@moviesmovies2676 3 жыл бұрын

Very helpful video for me as a student . But sir,,, Is this type of Small and modern transformer is available in "open electronics market" to buy separately ?

@shuaibalghazali3405 2 жыл бұрын

Love your explanation thanks

@fouadsaid5093 2 жыл бұрын

Best explanation sir

@devasigamanip5280 Жыл бұрын

Thanks for your 6v or 5v smps circuit I got more knowledge please give me the details of components in13003flyback aera

@abdullatif9108 3 жыл бұрын

Very nice

@md.ashrafulalamashraf1019 2 жыл бұрын

Very good video.

@dilipdhote640 2 жыл бұрын

Best video , thank you.

@abdullatif9108 3 жыл бұрын

Please make one video explaining how should we pick values for our components when designing our own circuit.

@Mushtaqahmed-ih2gl 2 ай бұрын

very nice

@fuppup 2 жыл бұрын

Спасибо за объяснение!

@danielugwa6517 Жыл бұрын

thank you sir you are awesome. one's again sir. please sir I want to learn more about the transformer coiling. the position of the coiling. positive and negative of the transformer. starting of the primary. starting of the auxiliary. nd the secondary. please sir am having this problem help me out sir thank you nd God bless you.

@abeabebe532 2 жыл бұрын

bravo bravo ..........

@vegaledlights 3 жыл бұрын

Very Nice explanation sir. First secondary you mention is auxiliary winding i think. Please make video on working of 50w LED Driver/power supply circuit, constant current, primary side regulation without optocoupler and with IC. Thank you in advance.

@fbxlearning8725 3 жыл бұрын

Yep, you are correct. First secondary is the auxiliary, ancillary, subservient, subsidiary. Choose a way you want, to describe the behavior :-) We will follow up this request. Ok, we will create in a separate video to explain operation of SMPS regulation without feeback opto-coupler. Just to brief you quickly, the switching mechanism remains the same, but APPROXIMATE regulation happens at the primary. The N1:N2 coil ratio does the rest at secondary. Thanks for your feedback & suggestion.

@xSeemsLegit 2 жыл бұрын

Nice video

@surendrakverma555 Жыл бұрын

Good. Thanks 🙏🙏🙏🙏🙏

@viswanathancr2801 Жыл бұрын

good video

@farhaadfarhaad497 3 жыл бұрын

Thank you so much for this video. Very informative and more than that very very in depth , accurate and very well analyzed . One question : what is the usage of the resistor connected in parallel , just under the zener diode . and why parallel not in series . Thank you again .

@fbxlearning8725 3 жыл бұрын

If you analyze closely, then the 100 Ω, resistor is in SERIES with the zener diode. It limits the current flow through it. The zener is marked 4.2VZ. The other diode in the bottom you see is the opto-coupler LED. However, this LED is fabricated inside a 5 or 6 pin package. The LED's forward bias drop of 0.8V (typically), is visible across the 100 Ω resistance as well. This in turn lifts the -ve potential point of zener by 0.8V, thereby adding up to the zener breakdown voltage (in this case 4.2V). Hence output Vo now becomes 4.2V + 0.8V = 5.0V. Hope you understand it now.

@farhaadfarhaad497 3 жыл бұрын

@@fbxlearning8725 Thank you so much for your reply . I think I need to study and concentrate more on the issue .

@edinfific2576 2 жыл бұрын

@@fbxlearning8725 That resistor doesn't do so much limiting of the zener current as much as it shunts zener current away from the opto-coupler. If the zener current got too high, the optocoupler LED would burn above 50-60mA. Since the OC LED is in parallel with the resistor, this resistor actually INCREASES the zener current (due to decreased total series resistance.

@MohamedTallat 3 жыл бұрын

Deserve a Like & Subs

@fridaychika32 Жыл бұрын

U are a gd teacher. Pls can I get 50v/2A from this type of SMPS.If so,how. Tnx.

@ElectronPcRepair 11 ай бұрын

Very clear. Thanks

@prakashsharma6186 3 жыл бұрын

Already clarified. Thx

@bobbowie5334 2 жыл бұрын

Good explanation. So if you *double* the secondary voltage and *change the zener* to 18.2 volts you can convert this circuit for use as a miniature _laptop_ charger.

@fbxlearning8725 2 жыл бұрын

😃 Absolutely. You got the point. Play around with secondary voltage and zener values and get any desired output. But there is a catch. The amount of current that you can draw out of this circuit. Laptop charger needs more current (rather a steady current). I did not touch on that part yet. Probably left it for some other discussion.

@edinfific2576 2 жыл бұрын

You would need a much more powerful input transistor and output diode(s), plus a larger transformer and output capacitor.

@ziadfawzi 3 жыл бұрын

Thank you so much.

@Springmountain1 3 жыл бұрын

Thankyou so much sir🙏🙏

@anuwattanaiatkhlik1306 3 жыл бұрын

Thank you very much

@hareshpatel6052 2 жыл бұрын

A small correction is required. The output voltage is shown as 10V but the Zener voltage 4.2V plus photocoupler diode voltage add up to 5V so the output voltage should be 5V. Perhaps you meant 10V is the maximum voltage with feedback removed but should be explained.

@evansetyawan1990 Жыл бұрын

bro, I want to ask, is the current coming out of the base a negative current?

@jimmyq6817 22 күн бұрын

Hello sir, excellent explanation. There's just one thing bugging me what is the reason for placing a 100 ohm resistor in parallel to the optocoupler diode?

@fbxlearning8725 Күн бұрын

It limits the current flow through the zener.

@noelramos2432 6 ай бұрын

one of the explanation ive seen

@cerypramautama 3 ай бұрын

Sit, why the current from the winding can be pass the capasitor and triggered the basis of the transiator? Thx

@gplgomes Жыл бұрын

This circuit needs a good transformer that does not saturate over high frequency and current. A special attention is needed over Foucault currents on high frequencies too.

@fbxlearning8725 Күн бұрын

Yes true. I will publish a page or video to explain the calculations involved in designing the flyback transformer.

@jyoutech7635 Жыл бұрын

Supper 😁😁👍class

@dreadwings3 3 жыл бұрын

Very good, comrade!

@fbxlearning8725 3 жыл бұрын

Glad to hear from you.

@creativesasangchannel2046 3 жыл бұрын

Thank u sir

@anushairan28 2 жыл бұрын

sir can you make video on electric arc

@fbxlearning8725 2 жыл бұрын

Surely. But I need to workout on it, a bit.

@evansetyawan1990 Жыл бұрын

bro, I want to ask, is the current coming out of the base a negative current?

@siddharthyadav5124 3 жыл бұрын

How can we decide the values of the component used in this like resistors and capacitors ?

@jaikurella9378 2 жыл бұрын

A nice concept sir, a small doubt wt is the fuse rating

@fbxlearning8725 2 жыл бұрын

I did not touch base on the fuse requirement and design. Because it need a detailed explanation and I kept it for another session. For now. the fuse rating depends on the Operating Current. The current rating of a fuse is typically de-rated 25% for operation at 25ºC to avoid nuisance blowing. For example, a fuse with a current rating of 10A is not usually recommended for operation at more than 7.5A in a 25ºC ambient. Moreover, the fuse rating is decided by load current as well.