{592} 300 Watt SMPS Circuit Diagram Explained, Troubleshooting

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Күн бұрын

300 Watt Half Bridge SMPS Using TL494, Circuit Explained & Troubleshooting & Circuit Diagram . how to repair smps switch mode power supply
Download 12V 25A 300W TL494 based Half Bridge SMPS circuit diagram bit.ly/3y9RJ4g
in this tutorial i explained the functional description of this industrial power supply it provides nominal 12 volt and 25 Ampere. the output voltage can be adjusted from 10.5 to 15 volt. its switching frequency is 48KHz and the push pull output is 24 KHz. it have 13009K transistor to switch the high frequency power transformer's primary winding. i demonstrated How To Repair SMPS Switch Mode Power Supply and explained Step by Step Practical Troubleshooting. also explained easiest circuit working with logical troubleshooting and fault finding techniques to find the faults in any switching mode power supply. it uses fix frequency and the output voltage are regulated using pulse width modulation technique.
Download 300W TL494 based Half Bridge SMPS circuit diagram
drive.google.com/file/d/1E9vG...
bit.ly/3y9RJ4g
its voltage mode error amplifier is biased at 2.5 volt using reference voltage and the pin number 1 is connected to the output point. which is used to regulate the voltage using PWM technique. current mode error amplifier is connected to the current sense shunt resistance, which provides the dropped voltage across the shunt resistance and it limits the switching to protect the converter from overcurrent conditions.
HOW TO REPAIR SMPS
how to repair smps switch / switching mode power supply repair tutorial.
very easy & step by step repair of SMPS
smps practical troubleshooting tutorial,
practical circuit tracing of smps with circuit diagram.
how to repair mobile charger / computer power supply / laptop charger / led lcd tv power supplies /
WORKING of SMPS
basic working of switching mode power supply
how smps switching mode power supply works
block diagram of smps switch mode power supply
12 volt 25 amp, 300 Watt Half Bridge SMPS Using TL494 / ka7500 circuit explained
how to make / design smps switch mode power supply
smps power supply circuit design / circuit diagram with explanation
what is optocoupler or opto-isolator and what is its function in feedback circuit
function of FET, MOSFET, BJT, IGBT or switching modules
how to test bridge rectifier circuit
EMI filter explained
snubber circuit explained
surge current protection circuit
tl494 smps circuit diagram
12V smps switch mode power supply circuit diagram explanation
atx power supply circuit diagram explained
Common Faults in SMPS.
smps voltage fluctuation,smps output voltage fluctuation
whistle sound or excessive noise or excessive heat or hmm sound.
smps have short circuit in secondary
fluctuating output or output voltage unregulated
SMPS is dead or no output. smps ic have no switching frequency,
fuse keeps blowing / short circuit at input
short circuit protection is active
current sense problem. not providing rated output power
soft start circuit / start up circuit explained.
00:00:00 Introduction
00:02:22 EMI Circuit Electromagnetic Interference
00:03:23 How to Test Fuse
00:04:09 How To Test Input Resistance
00:06:44 Fuse Keeps Blowing
00:07:26 Bridge Rectifier

Пікірлер: 364

@bantidasAB9475 2 жыл бұрын

Thank you sir great explanation for again and I have send you a message to make a video on it and you did it thank you very much

@HaseebElectronics 2 жыл бұрын

it is my pleasure

@bantidasAB9475 2 жыл бұрын

@@HaseebElectronics respected sir if it will be convenient for you so make video on buck converter using ic 3843 and and make the buck converter in video and explain about it as well that because there are no... Of youtubers who made video about buck converter and boost converter but they don't explain. Only you who make and explain about anything so it's my dribs and drabs to make video and make buck converter or boost converter and explain please

@bantidasAB9475 2 жыл бұрын

Love from india

@bantidasAB9475 2 жыл бұрын

Please reply

@HaseebElectronics 2 жыл бұрын

yes brother I already replied your comment I will do it soon

@anexoworkshop 7 ай бұрын

Thanks professor Haseeb. I've just fixed a SMPS, found an open resistor that was not providing VCC to TL494. Replaced it with another 1.5MR and it's now working as it should. Before finding the resistor I inspected MOSFETS, output diodes, input circuit. Kudos from Brazil.

@user-zg8gs2le2f Жыл бұрын

Thank you sir, May ALLAH reward you, I am from egypt. I learned a lot from your videos, even though I can't fix my smps yet . You are very informative and your skills are very educating. Thanks a lot. Jazak ALLAHU KHAIRAN

@W1RMD 2 жыл бұрын

Thank you! I've been missing your longer videos, and this one is really well done. You're the best SMPS teacher on KZfaq. Enjoy another cup of coffee sir, you deserve it!

@HaseebElectronics 2 жыл бұрын

special thanks and best wishes for your valuable words for my efforts stay blessed

@farukhannan8230 2 жыл бұрын

It’s a wonderful calm step by step explanation.your delivery method is very detail and practical. You are a great teacher . Keep it up

@Jgonzales5690 2 жыл бұрын

Good day my brother! I admire your unselfish devotion in sharing your knowledge. Like so many others, I learned a lot from you. 🙏🤛🇵🇭

@HaseebElectronics 2 жыл бұрын

your comment is really a valuable asset for me i am thankful

@arupmallik3070 Жыл бұрын

Thank you very much Sir. At last, with your help, I could fix my damaged SMPS. It took me some time but I am happy that I could do on my own. Thank you once again.

@bryanpenny1104 6 ай бұрын

Thank you. Your videos have helped me repair a SMPS I have been wrestling with for some time. Your efforts are much appreciated.

@zishayixing 2 жыл бұрын

This is a baddly needed teaching course, thank you very much!

@HaseebElectronics 2 жыл бұрын

You're very welcome!

@HaseebElectronics 2 жыл бұрын

it is my pleasure

@saarike 2 жыл бұрын

Simply excellent!!! My humble thanks. Everything explained. 👍👍👍👍

@HaseebElectronics 2 жыл бұрын

special thanks

@nedeljkooctenjak9690 Жыл бұрын

the explanation of the symptoms is very good. nice work

@HaseebElectronics Жыл бұрын

Thanks for your encouraging words 💕

@jacoleroux5569 Жыл бұрын

This is a great video and does give one a more understanding how this works, I have an issue with my S-360-12 12volt/30A and I can not find the issue, the VCC pin on the IC only have 8.4volt where it should be 20volt the main output voltage is only 4.9 - 5.1 volt, I have checked and replaced all the large and small Electrolytic Capacitors, also tested all Transistors and diodes. I'm old school and used linear powers supplies and some what new to SMPS. Thanks for your video keep it up..

@hichamtassi1753 2 жыл бұрын

I viewed the video and i would like to also share that with the 26 PSU of this kind that tried to fix, when some did not start, i very often found the low value resistors (R43 /R47) driving the base of the MJE13009 being open. When observing short circuit, those MJE were short. Sometimes also when one of the MJE heats, checking the Zener 33v (D3 /D4) in parallel with C1815 transistors revealed faulty. Happy to bring some information to this magnificient video done by our Master. Salam Aleikum.

@shamshirian 6 ай бұрын

Thanks for valuable comment. I was struggling repairing three power supplies. your comment helped me a lot to fix them. each one had one of mentioned issues. thanks.

@hichamtassi1753 6 ай бұрын

Very happy to help@@shamshirian

@OswaldoLeal-eu7gs Жыл бұрын

Gracias por sus videos, muy profesional y didacticos, agradecer que todos sus videos puedan traer su traduccion en español, saludos

@ziadfawzi Жыл бұрын

Thank you so much for this information, and the schematic diagram.

@qurat1920 2 жыл бұрын

Thank you so much sir.... You always put so much of hardwork for we people.

@HaseebElectronics 2 жыл бұрын

جزاك اللهُ خيراً

@reginaldwatterson2710 9 ай бұрын

Thank you, excellent demonstration of your extensive knowledge, is wonderful.

@bkhp29 2 жыл бұрын

Thanks for this video from the core of heart. You fulfilled my request .

@HaseebElectronics 2 жыл бұрын

Most welcome 😊

@ISO07ISO 8 ай бұрын

Bu videoda şunu iyice anladım ki devreden elektrik bir yerlerden bir yerlere sürekli ileri geri akıyor. Bir yerde dolup bir yerde boşalıyor. Senin eğitimlerinden önce sadec bir yönde akıp geçen bir şey zannederdim. Ama şimdilik içerde ileri geri döngüler yapan, farklı dalga boylarında değişen bir çok süreç olduğunu biraz anladım. Öğreniyorum sayende.

@MarkPrince1317 2 жыл бұрын

Such a great detailed informative video once again thank you very much brother Best regards from Philippines 🇵🇭

@HaseebElectronics 2 жыл бұрын

جزاك اللهُ خيراً

@BlackOpsJuJu 2 жыл бұрын

Amazing Vid as Always Very Well Explained You are the Best Thanks For Sharing

@HaseebElectronics 2 жыл бұрын

special thanks and best regards

@hliaspetropoylos1013 7 ай бұрын

Very nice video, very good work FROM GREECE

@coloradowilderness3139 2 жыл бұрын

Wonderful understanding about SMPS.

@HaseebElectronics 2 жыл бұрын

thanks a lot for your encouraging comment stay blessed

@Rentasigntt 2 жыл бұрын

Great work... you and Diodegonewild are neck and neck !

@HaseebElectronics 2 жыл бұрын

best regards and special thanks for your encouraging words.

@vicentematricardi3596 2 жыл бұрын

Como de costumbre , tus vídeos mostrando un gran profesionalismo , un abrazo , Muchas Gracias !!!!! 👌👌👌👍👍👍

@HaseebElectronics 2 жыл бұрын

Estoy agradecido por tu valioso comentario

@vicentematricardi3596 2 жыл бұрын

@@HaseebElectronics Te lo mereces !!!! 👍👍👍👍

@manusudha4269 Жыл бұрын

Thank you for your patience and hard work .Greetings from India .

@HaseebElectronics Жыл бұрын

best regards and special thanks

@vijayakumarkumar9190 2 жыл бұрын

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

@HaseebElectronics 2 жыл бұрын

it is my pleasure

@junkyard_engineering 2 жыл бұрын

Thank you for sharing your knowledge. I learnt a lot from your videos.

@HaseebElectronics 2 жыл бұрын

it is my pleasure

@thonghuynh4326 Жыл бұрын

Thank you, your sharing is very helpful.

@northtustinsteamworks5172 Жыл бұрын

Great video!! I've learned more about PSU electronics from your videos than any other resource! I have a RIDGID battery charger I'm trying to fix. Your videos, I think, will make it possible that I can understand and repair it. What application did you use to produce this schematic?

@Pilotfly2023 7 ай бұрын

Very good... Thks, friend!

@hichamtassi1753 2 жыл бұрын

Salam M Haseeb, very informative. Lots of these devices fail and we have hard time to know why. Thanks for sharing & Salam Aleikum.

@HaseebElectronics 2 жыл бұрын

وعليكم السلام ورحمة الله وبركاته للہ الحمد والشکر it is my pleasure that my efforts are helping

@giorgostexnikos6976 2 жыл бұрын

excellent analysis.amazing video

@HaseebElectronics 2 жыл бұрын

it is my pleasure

@clivemurray3433 2 жыл бұрын

i like this power troublesooting clive tech. thank you.

@HaseebElectronics 2 жыл бұрын

You are welcome

@sami_2119 Жыл бұрын

Thank you very much brother. It was very helpful and explained good and detail. Thanks again.

@HaseebElectronics Жыл бұрын

best regards it is my pleasure

@danielugwa6517 2 жыл бұрын

on this sir I call you boss. may God reward you abundantly thank you sir

@HaseebElectronics 2 жыл бұрын

So nice of you i am thankful for your valuable comment

@asankachriste2581 Жыл бұрын

im sri lanka ,thank sir great explanation

@HaseebElectronics Жыл бұрын

best regards

@Yorumcu63 Жыл бұрын

Super details .Thank you for video

@HaseebElectronics Жыл бұрын

So nice of you

@dragandojcinovic1756 Жыл бұрын

Thank you so much,great video

@HaseebElectronics Жыл бұрын

best regards and special thanks

@voeurnsear6033 Жыл бұрын

Excellent job!

@HaseebElectronics Жыл бұрын

best regards

@fatimaKitchen12 2 жыл бұрын

Walkum aslam bhai mashaAllah great work juma Mubarak

@HaseebElectronics 2 жыл бұрын

جزاك اللهُ خيراً

@shefqetkaralliu6816 2 жыл бұрын

Ottimo spiegazione grazie. 👍

@HaseebElectronics 2 жыл бұрын

thanks a lot

@HarlavanisPanagiotis 2 жыл бұрын

Awesome video dear friend, have a happy Friday!!!

@HaseebElectronics 2 жыл бұрын

thanks a lot dear friend

@aldrienganaut5057 Жыл бұрын

Salam brother i Like tutorials❤️👍

@voiceofimrana 2 жыл бұрын

Walkium aslam Zabrdast sharing

@HaseebElectronics 2 жыл бұрын

وعليكم السلام ورحمة الله وبركاته

@rodolforiveraleal Жыл бұрын

Thankyou for your wonderfull información..Best regardd

@HaseebElectronics Жыл бұрын

So nice of you

@sreekanth369 2 жыл бұрын

Sir, Namaste... Very Good Explanation Sir... with Regards. Sreekanth.K- Hyderabad.

@HaseebElectronics 2 жыл бұрын

Thanks and welcome

@ciptoudiyono553 2 жыл бұрын

Wa alaikum salam wr wb I ndonesia menyimak, semoga sll sehat sukses dan Allaah selalu melindunginya aamiin

@HaseebElectronics 2 жыл бұрын

selamat datang dan terima kasih khusus atas komentar Anda yang berharga

@nitinsharma-bz8dr Жыл бұрын

Nice video for knowledge

@arslanmughal7394 2 жыл бұрын

Thank you very much sir..........it was a great lecture..........wa Alaikum salaam

@HaseebElectronics 2 жыл бұрын

So nice of you

@asankachriste2581 Жыл бұрын

im sri lanka ,so really understanding your teaching and thank you sir

@HaseebElectronics Жыл бұрын

You are most welcome

@lupojacobo9892 2 жыл бұрын

Shukriya Maestro

@HaseebElectronics 2 жыл бұрын

thanks a lot

@tanvirsakib3078 2 жыл бұрын

Very useful video. I have a question, describe about bias voltage with calculation.

@oliverwijesooriya2067 4 ай бұрын

excellent job

@tanvirsakib3078 2 жыл бұрын

I like this kind of video.circuit explain with pdf.It's very good.

@HaseebElectronics 2 жыл бұрын

it is my pleasure

@skplayboy265 2 жыл бұрын

Good Work Sir, God bless u

@HaseebElectronics 2 жыл бұрын

thanks a lot

@ComputerExpert1 Жыл бұрын

Thanks for sharing Sir

@rizwanarajaukvlogs3090 2 жыл бұрын

thank you for great information

@HaseebElectronics 2 жыл бұрын

thanks a dear sister Eid Mubarak to you and your family

@jackdaniel8269 Жыл бұрын

Sir, Excellent explanations as always. Thank you for educating us in such details. A few doubts if you please bother to clarify. 1. Why is a driver transfer required? Is the output from pin 8 & 11 insufficient to drive the MJE13009 transistors? Also the roles of the 2SC1815 transistors. 2. If you could explain the winding details (turns, direction and thickness) of both the transformers, ie the main and the driver transformer please. 3. If you could show us the waveforms at different stages as shown on a oscilloscope. Request do a video on the above if is not much of a problem. Thanking once again.

@JunaidKhan-qp7uk Жыл бұрын

جزاک اللہ خیراً کثیرا

@HaseebElectronics Жыл бұрын

it is my pleasure

@arunkumar-bh2dp 2 жыл бұрын

very clear explanation. can you explain separate video of flip flop and error amplifier circuit function

@boybravo689 2 жыл бұрын

Always watching sir

@HaseebElectronics 2 жыл бұрын

it si my pleasure

@user-ty8sh6zn4h 6 ай бұрын

Ty sifu. May Allah bless you.

@tanvirsakib3078 2 жыл бұрын

جزاك الله خيرا.

@HaseebElectronics 2 жыл бұрын

thanks a lot

@munishgoyal3455 Жыл бұрын

Dear sir, I regularly watch your videos and these are really knowledgeable . I an desperately waiting for some video on LNK6666e ic used in SMPS. Though it looks so imple in circuit yet difficult to repair. I tired to fix it, checked all resistances startup capacitor and even changed the IC but not able to get primary driver circuit ok. Kindly make some video on it. Thanks

@azamataydarov25 2 жыл бұрын

Very good, thank you.

@HaseebElectronics 2 жыл бұрын

best regards and special thanks

@muhammadishtiaq24 2 жыл бұрын

Excellent thanks for sharing

@HaseebElectronics 2 жыл бұрын

thanks bhai

@rabihnasr7228 2 жыл бұрын

thank you thank you thank you a lot you are genius

@HaseebElectronics 2 жыл бұрын

thanks a lot

@osamanasr5000 Жыл бұрын

Jazakallahu Khayran, it was very useful

@HaseebElectronics Жыл бұрын

best regards

@osamanasr5000 Жыл бұрын

@@HaseebElectronics can I use just one 7500 to drive two SMPS

@hitendersingh2816 2 жыл бұрын

Thanks sir amazing experience to with yu

@HaseebElectronics 2 жыл бұрын

thanks a lot dear brother

@aboabdrahmanaziz8752 7 ай бұрын

شرح مفصل وممتاز

@KBTechbd 2 жыл бұрын

Beautiful vlog ❤

@HaseebElectronics 2 жыл бұрын

thanks a lot

@normandberick8740 3 ай бұрын

Thank you, you do a great job! Question, what is the need to use, SW1, I don’t understand why ac is redirected between C5 and C6?

@apachecomm Жыл бұрын

Thank you very much sir

@HaseebElectronics Жыл бұрын

best regards

@s.m.mustafizurrahman8656 Жыл бұрын

Sir, Excellent

@HaseebElectronics Жыл бұрын

most welcome der brother

@Prashant241989 2 жыл бұрын

Hi, very helpful video and lovely explanation. I am trying to use this circuit to generate high voltage of 1.5kV by modifying the main transformer to a step up transformer and then rectifying the output. In open loop the circuit works well but as soon as I give the feedback to pin 1 of TL494, the output ripple becomes 30%. When observed closely I found that TL 494 is generating pulses for 20msec (at 40kHz) and off for 40msec. Can you help please.

@mujtabanaqvitv7619 2 жыл бұрын

Veri good Veri good Bahut Khoob

@HaseebElectronics 2 жыл бұрын

thanks a lot

@rahulpatelgujratahmedabad3497 2 жыл бұрын

Good tiching karte hai 👌👍👍👍👌👌👌👍👍

@HaseebElectronics 2 жыл бұрын

thanks bhai

@user-is3ni8ed9g 2 жыл бұрын

Thank you so much sir....

@HaseebElectronics 2 жыл бұрын

Most welcome

@raoamarjeet5473 2 жыл бұрын

Nice video Sir Please make some videos on inverter ac pcb

@susantaatha6468 2 жыл бұрын

Beautiful explain. Please sir explain PFC circuit basic method.

@HaseebElectronics 2 жыл бұрын

sure i will try my best to explain it as soon as possible

@peterphiri4262 Жыл бұрын

Sir please please also include videos for us beginner in electronics like naming components, designing and understanding circuit diagrams and protection otherwise am a follower of your works sir

@vijayakarekar 2 жыл бұрын

Sir ...you are expaling in Doctors...style...thanks....

@HaseebElectronics 2 жыл бұрын

Thanks and welcome

@riadhjaberi5996 2 жыл бұрын

It is very wealthy with information that we have to view it several times

@World_For_everything Жыл бұрын

Wonderful 👍

@HaseebElectronics Жыл бұрын

best regards

@zokim9733 Жыл бұрын

Thank you very much ......

@HaseebElectronics Жыл бұрын

You are most welcome

@lupojacobo9892 2 жыл бұрын

Shukriya Maestro. God bless you. I am drinking coffee aswell

@HaseebElectronics 2 жыл бұрын

wow that is awesome

@lupojacobo9892 2 жыл бұрын

@@HaseebElectronics Can you explain TSM 104 Maestro ? 🙏

@Murshad366 2 жыл бұрын

THANKS FOR SHARING 🍁

@HaseebElectronics 2 жыл бұрын

it is my pleasure

@soufianben7590 7 ай бұрын

thank you from dz

@dickschottky9406 8 ай бұрын

Thanks!

@HaseebElectronics 8 ай бұрын

thanks a lot

@tahirshoukat780 2 жыл бұрын

Great sir Thnx

@HaseebElectronics 2 жыл бұрын

Most welcome

@GalgoczkiAdam 10 ай бұрын

Thank you for the video sir! I don't understand what you said about the low voltage driver transistors at 53:00. You said those transistors are turned off because they pulled-up, and they begin to conduct when the IC connects their base to the ground. But this not how NPN transistros work.

@abdalla1291 Жыл бұрын

Thank you sir for all the lessons you give us. Can you explain to me how can I operate an electronic welding machine (converter) using 320v / 10A DC solar panels knowing that there is the obstacle of the safe start with the thermistor.?

@vijaykumarjaintechelectric8723 2 жыл бұрын

Nice informative vedio

@HaseebElectronics 2 жыл бұрын

thanks a lot dear sir God Bless you

@kdcreativity6201 2 жыл бұрын

Sir can you please tell me the purpose of the D4 (1N4752) 33v zener connected from emitter to collector of C1815 because in many smps these diodes are just 1n4148