#297

in this theory and practical tutorial i explained practical functional description to Understand & Repair Switch Mode Power Supply SMPS Practical troubleshooting. it is using FSDH321 current mode SMPS PWM controller. DH321 & DL321 are similar ICs but the main difference is switching frequency. Pinout is same.
i demonstrated How to repair switch mode power supply SMPS very easy. i shared my easiest and perfect troubleshooting techniques practical troubleshooting. smps concept and troubleshooting repairing or understanding repair switching mode power supply basics and working principle. also i discussed smps basics. after watching this video you can capable to:-
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fuse keeps blowing
how to repair switch mode power supply when short circuit at input
if SMPS is dead or no ouput
if SMPS have fluctuating output or output voltage unregulated
if smps have short circuit in output
how to eliminate short circuit
how to troubleshoot #PWM #SMPS #controller when there is no switching from #MOSFET
if SMPS have a whistle sound or excessive noise or excessive heat
how to repair mobile charger
how to repair computer power supply
how to repair laptop charger
how to repair inverter of solar system
how to repair #UPS #uninterruptible power supply
#smps, #repair, #troubleshooting,
SMPS practical tutorial • SMPS Switching switch ...
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[@bradpayn1839]

I have noted that there is not one techical question below. I have one for you please, how is voltage stabilisation achieved on the 5v and 12v rails. Say, there is heavy demand on the 3v rail but heavy demand on the 5v rail. The 12 v rail may over volt while the feedback is dealing with the demand coming from the 3v rail where the feedback is sensed. The magnetic flux would do weird and complex things as the load through the transformer splits up through the independent load coils. surely independent regulation may also be required???

[@HaseebElectronics]

best regards and special thanks your question is very strong in cheap and low quality power supplies used in commercial field, 3.3 volt is considered critical for micro-processor. so its regulation is kept at top priority while the other sections of multi-section power supply are followed to 3.3 volt, basically other outputs are not regulated, their voltage level is compromised, in case of any problem in 3.3, will change the output of other sections respectively, but remaining in the regulation window of 3.3 volt regulation the other section's output will also change but it will remain within limits because the circuits connected to other sections have flexible operating voltage ranges. if 3.3 volt section is out of specified limits, then the smps controller will disable the output by reaching at its maximum drive limits. if any output will overloaded it will case to increase the magnetizing flux , which will cause excessive voltage in un-regulated sections in special multi-output power supplies all outputs are monitored, in case of any output is out of limit, then the power supplies disables the output

[@vloggerAbhaypathak1]

Lk Aap ki har prastuti bahut hi knowledgeable hoti hai Sabhi dosto ko is vdo ko watch karna chahiye

[@sagartrueshayar2517]

29 lk 👍 bhai Assalamualaikum good information

[@Sammy-oc7zg]

Fine precision machines are unknown to ordinary people. Wonderful.👍#158

[@aliduadam2761]

May Allah bless you with more knowledge,I have not come across teaching like this,clear every doubt,in fact anytime I watch you video am increased in knowledge and understanding of electronics. Mashalah

[@HaseebElectronics]

it is blessing of my Allah best wishes and sweet regards

[@hijabsandyou6328]

Mashaallah Mashaallah... as always.. soooooooooo informative.. stay blessed my brother...

[@manhardanmahedu3765]

I like such type of SMPS videos very much, wonderful explanation with practical. Awesome.

[@avr.electronicpoint.5575]

Perfect Smps teaching.i think u r University of electronics.god bless u.

[@ercanozcan3263]

Hello, I want to thank you very very much for explanation of SMPS in quick and detail informations. You are the rigth person about SMPS. I have discovered you recently. I am watching your videos every morning as much as I can. I am an electronic engineer and repairman. I am writing down your experienced talkings and hints. I am realy grateful for you. Have nice day... ( from Turkey )

[@HaseebElectronics]

welcome dear brother it is your greatness for writing such golden words for my efforts please accept my best regards and special thanks

[@ARA-HOUSE]

Lk 164 Full of knowledge Keep it up sir ❤👍😊 Keep sharing ur wonderful Knowledge👏👏👏👏

[@HaseebElectronics]

Many many thanks

[@K1ZEK]

That was GREAT ! I have been sitting here drawing out that exact power supply. I have a few of them out of $30.00 FTA satellite receivers that have stopped working. I wanted to learn about them so you came along at the right time a little bit of Gods Blessings. Blessings and good bye. Leo.

[@kuchpanktiyajindagiki]

Good day. Very useful sharing.

[@anaselectronics62]

Good information sir

[@farrukhazad]

nice work dear friend , nice , like ur work and video , nice share , makmal hony tk chala d

[@CAPTAINSAIMA]

MashaAllah awesome informative video super duper shearing sweet brother Allah bless you

[@Dr.QaisarAbbas99]

nice work dear bro thanks for sharing stay blessed

[@samiafazal]

Always great sharing

[@kuchpanktiyajindagiki]

You always explain everything perfectly.

[@STV-th2tv]

Thanks for shearing knowledge my brother I watch and like video thanks

[@Scienmix]

Beautifully explained thanks for sharing watching from UK. 💐👍

[@khanlalavlogs]

Well, once again a very excellent video shared with the same tempo of explaining everything in details. Keep it up bro, nice sharing..

[@kmhovlog6185]

Lk 3 Fully watched awesome superb informative vedio adorable work mashallah excellent thank you very much for sharing your valuable time with great working skills big thumbs up from me always be happy best wishes

[@yonisat1]

Great channel . thanks ...

[@HaseebElectronics]

thanks a lot. stay blessed

[@AbdulMomenZargar60]

Great Work Liked Very Much # 42

[@rmjnm]

Sir we learn and enjoy your videos very much. Thanks.

[@mon-alarby]

بالتوفيق يارب 👍👍

[@kmhovlog6185]

No stop continue watching great sharing interested

[@ahmedmadkour]

Hello 🤩 that's amazing job my friend ♥️ give you super 👍

[@keyboardmelodies5954]

Well explained & presented video

[@carolinediyandvlog]

Thank you very much for this informative video

[@skilledhiko329]

Well explained brother. Thank you very much for this informative video. Good continuation

[@MiasSerenity]

Great video bhai

[@uwi144]

Assalamualaikum, totorial friends are very useful, hopefully blessed amen

[@7276556536]

valuable video.help circuit tressing . analysis circuits .compoant uses .boost repair confidant thanks

[@NZChannel22]

Another informative upload 👍👍👍

[@channeltipstircks]

144 very nice sharing

[@syedakauseraliofficial5298]

Amazing 👍MashAllah ur videos are so useful

[@michaeltarwa4930]

Thank you very much for sharing such knowledge. Please sir can you do a video on how a voltage stabilizer works, how to troubleshoot it and repair it. Thank you sir for being there. More power to you.

[@vijayakumarkumar9190]

Very useful information sir thanks a lot

[@BajisKitchen]

Always nice and helpful video Mashallah 👍👌

[@HaseebElectronics]

Thank you so much 😊

[@valentincorkovic6106]

Perfect explain!

[@HaseebElectronics]

it is my pleasure that you liked my efforts

[@zakiausa]

Thanks for sharing good work brother 👍🙋‍♀️

[@seemaskitchenfun5415]

Thanks for sharing ❤️

[@paulmuff9883]

Very informative 👍

[@antoniojesusarquillosalvar4342]

Great channel with amazing contents and the best learning experience from your deep knowledge and practical understanding on how circuits works. Congratulations and greetings from Spain.

[@Showbiz11]

nice tec sharing best of luck bro

[@aseeralshoq4818]

You are very good teacher thank you very much and l would like to ask you if you can make scores of vfd and inverters in general

[@HaseebElectronics]

thanks a lot and dmy best wishes الله يسلمك

[@MizanurRahman-sz5yw]

Very nice job well done.. bro...

[@ismailjailam5157]

Gud job sir 👍👍👍❤️❤️❤️❤️

[@stealthyshadow8875]

أحسنت ، نشكر مجهودك الرائع . We want to see your face in coming videos please

[@HaseebElectronics]

best regards dear you can send message to my whatsapp [phone] i will send my picture to you or you can see my picture in my profile picture on my whtsapp profile as well

[@sudheerkumar5966]

Very good sir

[@om_ans]

اجمل بصمه ليكم 🌼 🌷 🌸 🌱 💮 🏵

[@meerabkakitchen]

Good job Bhai

[@pierredashman85]

Great work... Thank you so much

[@msbbadsha1456]

awesome video 😱

[@rashidm9396]

Excellent

[@rolandberendonck3900]

Incredible video! 👍👍👍

[@HaseebElectronics]

best regards and special thanks

[@shanzay4316]

Outstanding

[@saarike]

Great! My humble thanks.

[@johnrampo9794]

Thank you Sir for very interesting leson! Could you please explain how to test all transformer windings (primary, auxiliary, output) what are expected inductance and resistance values there and how can we determine if particular winding is damaged?

[@HaseebElectronics]

thanks a lot for your valuable appreciation. sure i will explain

[@hichamtassi1753]

Very informative video. Can you show how to measure voltage in and out of the main transformer ? Thank you and salam aleikum M Haseeb.

[@hadirizvi2670]

Very good explain of pwm controller Ic's ALLAH increase your knowledge. Sir will you not further sharing about DC to DC buck/boost converter about types, adjustments and detail construction . Best Regards

[@hadirizvi2670]

No problem Sir, when you have free then you will continue.

[@vijayakarekar]

Thanks...sir ji ....

[@HaseebElectronics]

best regards

[@AbdulMomenZargar60]

Salaam Janab Bhai Saab

[@rehamhamdy3793]

Thank you for sharing hope we always communicate 👀👈👈👈👈

[@afzalshabbir3130]

Sir v good teaching technique. One question sir.how i can check smps ic good or bad with multimeter in power on or off both conditions in a simple manner?

[@pakistani-vlogger.890]

ماشاءاللہ

[@elavarasanputhinan772]

Sir U directly connected At 6th pin for monitoring switching frequency... It have high voltage side... Its make any harm condition to oscilloscope... Conclusion question: what is the maximum input voltage to measure in your oscilloscope sir

[@HaseebElectronics]

you are right that i connected the oscilloscope directly actually my oscilloscope is isolated, so it is safe

[@elavarasanputhinan772]

@@HaseebElectronics thank u sir

[@KBTechbd]

hi my friend like video 👍

[@AshokKumar-cg4vw]

Sir fluke multimeter used by you can measure ac high frequency voltage also? Mostly multimeters can't measure

[@CliveTrezona]

Hello Haseeb, as the feedback is monitoring the 3.3v rail only, what happens when one of the other rails is loaded down? How does the smps controller compensate for this then?

[@HaseebElectronics]

best regards and special thanks your question is very strong in cheap and low quality power supplies used in commercial field, 3.3 volt is considered critical for micro-processor. so its regulation is kept at top priority while the other sections of multi-section power supply are followed to 3.3 volt, basically other outputs are not regulated, their voltage level is compromised, in case of any problem in 3.3, will change the output of other sections respectively, but remaining in the regulation window of 3.3 volt regulation the other section's output will also change but it will remain within limits because the circuits connected to other sections have flexible operating voltage ranges. if 3.3 volt section is out of specified limits, then the smps controller will disable the output by reaching at its maximum drive limits. if any output will overloaded it will case to increase the magnetizing flux , which will cause excessive voltage in un-regulated sections in special multi-output power supplies all outputs are monitored, in case of any output is out of limit, then the power supplies disables the output

[@petrok8618]

Hi! Have you ever was thinking of designing capacitor DC-DC step-up converter? Meaning without transformer at all. For example- you have 10 low-ECR capacitors connected in series (+ to -, + to -,.....), and you are charging each of them very fast one after another by using mosfets or other switches (1st for 1 millisecond, then second for1 millisecond...etc until last 10th one)? So you can in this case (with 10 capacitors in series) achieve 120v output voltage from 12v battery if to charge each capacitor to 12v very fast. or it's hard to do it technically for some reasons?

[@sonnisonni7727]

Good job bro aap kaa chainnal mono hai kya

[@zulkarnainkarim]

assalamualaikum brother...while testing the board with a scope..are you hook it up with ac power input to power it on? and do you use an isolation transformer? I am just a newbie and learn with an oscilloscope.

[@HaseebElectronics]

wa alaikum salaam brother i use a separate isolation transformer for oscilloscope otherwise it may damage the oscilloscope

[@zulkarnainkarim]

@@HaseebElectronics thanks brother for your reply..

[@zulkarnainkarim]

@@HaseebElectronics meaning that you hook up your scope with an isolation transformer and the power supply board direct to ac power input right? or both with isolation transformer?

[@mansirrabiu7412]

I really appreciate your effort brother Haseeb, but I don't know if you will help me with a problem am stocked in, I am working on a project that requires many li ion batteries in parallel, but when I try charging them with 5V mobile charger, the charger start fluctuation the power as if it were short-circuited.... Please Help me bro. Thanks for your help...

[@mansirrabiu7412]

@@HaseebElectronics 18650 sir.

[@coloradowilderness3139]

You are Randy Fromm of San Diego.

[@HaseebElectronics]

thanks a lot

[@kahitanongmaisip9358]

the best of all all i can says

[@subirnath4229]

Absolutely right...most detailed & honest teaching on electronic in KZbin...iam lucky to find ur channel....🙏🙏🙏

[@johncarlleoniso6133]

Sir what ic that can be replace FSL116LR? Thanks

[@HaseebElectronics]

try FSDL321 FSDL0165R

[@alim6583]

بسم الله الرحمن الرحیم اسلام علیکم I'd like to know what problem is if output smps drop when I contacted load ...I want mentioned that my kid is lower than smps could supply Thanks alot for effort

[@alim6583]

@@HaseebElectronics I know what you say..but if feedback had problem my output didn't have voltage..but I'm not professional this filed...but my device dead for this problem... I was wondering if I could ask you make list what I do in first of all and...

[@alim6583]

@@HaseebElectronics thanks ...I will be trying tomorrow...if you would like to know.let you know what happened but your perfect this things.

[@alim6583]

@@HaseebElectronics I guess maybe cap which are closed output have problem I'm not sure..

[@electriciandiy]

Full watch video

[@legendgamer6298]

Sir app Jordan mai hai

[@Eng_sarin]

Hi everyone friend

[@asifhussainasifali9382]

Assalam alukum Bhai aski Urdu banay jaldi

[@asifhussainasifali9382]

@@HaseebElectronics ok brother thanks

[@devrajkonaherkanaidu3836]

D.K.H