Thank you so much brother you way of teaching is amazing and very easy understandable and also thanks for the person who ask very good question Best regards from Philippines 🇵🇭
U reveal all the secrets of pure electronics,infact electronics is not a mystery anymore to us,you are the best on the internet no one can match you in terms of electronics understanding and knowledge.maashallah
best regards and special thanks اللهم صل على محمد وعلى ال محمد كما صليت على ابراهيم وعلى ال ابراهيم أنك حميد مجيد. اللهم بارك على محمد وعلى ال محمد كما باركت على ابراهيم وعلى ال ابراهيم أنك حميد مجيد
u r a gem ! ... the best and most patient report style ever ... from the most known to the least known.. reaffirming anf repeating to ensure understanding .. thankyou and may ur god bless u .. cheers
Thank you sir for giving me more knowledge on smps. This is my university. I want to help other people in electronics the way you help us. God bless you.
Great and most sweetest lesson I ever enjoy in electronics. Am currently having an issue working on a hybrid high frequency inverter showing error 09,after changing output mosfets,it change to 06,then I observe some zener diodes I changed off hand maybe I didn't get the real voltages,pls can u help me with real values of those zener diodes on the small output transformer...with codes zd3,7,8 . It's 5kva/48v. Thanks and more blessings to your home
in uni-polar designs like (flyback, boost) topologies it generates unipolar magnet, and in bilpoar switching topology, then there is bilpoar magnetic flux
Thank you very much for this video. Please explain the output section of a high frequency inverter. That is from 300 volts dc to 220 volts ac 50 Hz. Iam getting low output voltage. Fans are running slowly. How can I increase output voltage. Please explain. 🙏
best regards and special thanks sure i will share more repairing vlogs, as my viewers have a lot of questions so i have to reply their comments as well
@HaseebElectronics It's worth to also mention that it may be also a failure in the transformer winding... I'm fixing right now a Modecom ATX SMPS with both failed switching transistors,bruned fuse and desoldered one leg of subber resdistor. I fixed that problems, turned on PSU, and I notice that output voltages are very low, fo example 12V rails has 1 point sth Volt. I also noticed that snubber resitor gets very hot and after some period of time, transystors failed once again and "blew" a fuse once again... After that failure, I inspected PSU closer and more precisely and I noticed that transfomer has sheinked nad wavy isolation. and looking from the top I also noticed that isolation layersare melted, so I removed transformer, disassembled it, what wasn't easy, because isolation tape was so badly overheated that it falls apart, so I had to scrape it peace by peace and I noticed that one of the wires in the center-tap tail is blackend partially, burned!!!! I have 2nd PSU based on the same chassis, but with increased output power, so I borowed transformer and transistors from it, put my patient back together and bam, it worked!!!! Transformer failed, but I have to admit that anyways it done the job perfectly, becuse isolution worked and didn't allow the sec. winding short itself with primary!!
Thank you my brother for sharing all this great knowledge really appreciate your work I have a smps that used to work from 100v to 240v AC but recently started working only at 240v can you please tell me what might be the problem why it's not working at 110v anymore thanks in advance.
Sir you're videos are extremely helpful and I would like to thank you for that, can you make a video about :how to convert 3 phase input of VFD into Sigle phase input but the output of both are 3 phase. we only want to change the input while the output remains the same
Very informative video sir. You said in absence of snubber, it will cause oscillation effect. I would like to learn more on this. If you have any example video of some snubber circuit failed and cause the oscillation effect would be very helpful for me. Thank you sir.
best regards and special thanks yes optocoupler is used for switching. just set its ESR value high to drive the optocoupler in saturation try to use TLP250, TLP350, HCPL3150 CY17 type optocouplers that is specially for isolating switching optocouplers of use any IGBT / MOSFET driving optocouplers
Hello sir thanks a lot for your good explanation. I have a question: in a smps that I want to repair it, with replace x capacitor voltage on secondary side appear on 12V. But when install a load to it voltage dropped and fluctuated to 0-5 volt and load does not work. Please help me. 🙏🏻🙏🏻🙏🏻⚘
helo sir,, may i ask u about my 330amp welding machine proquip brand the welding output is very low it only spark 4or5times then d overheat light will switch on then the smps resistor and switching transistor are very heat.
Thanks for the interesting video. Can the sensing resistor do also problem ? Can you please explain in a video how op amps are used as atx supervisors and how tobypass them to increase voltage. Thanks.
I have a 36V/10A SMPS which keeps burning one of the two power transistors a few seconds after the load is connected. It is always the same transistor. Could you explain that for me? Thank you
i think that the resistance in snubbing circuit is much more greater that the resistance of the main winding. so even if the diode in the snubbing circuit is failed, there will be still switching. correct me if i am wrong.
no dear this resistance is also low with compare to the inductive reactance of the primary winding primary winding's dc resistance is always low but ac resistance working at high frequency is very high you can check video number 284 & 510 on rcd snubber
Low side switching is simple and easy to protect its gate but high side switching is something else I use gate drivers transformer and switching 22 volt to mosfets gate the gate is rated 20vgs but I measure the gate voltage and it’s 160 volt volt from the two switch forward converter can you explain why the mosfet gat no blowing out at the voltage I don’t have a ziner diodes to protect the gate
Hi. I'm from Argentina. It's really interesting your video. Thanks. In Argentina there's nobody who explain like you.
So nice of you
it is my pleasure
Thank you so much brother you way of teaching is amazing and very easy understandable and also thanks for the person who ask very good question
Best regards from Philippines 🇵🇭
U reveal all the secrets of pure electronics,infact electronics is not a mystery anymore to us,you are the best on the internet no one can match you in terms of electronics understanding and knowledge.maashallah
Thanks for this video and other information اللهم صلی علی محمد وال محمد و عجل فرجهم .احسنت یاسیدی حسیب
best regards and special thanks
اللهم صل على محمد وعلى ال محمد كما صليت على ابراهيم وعلى ال ابراهيم أنك حميد مجيد. اللهم بارك على محمد وعلى ال محمد كما باركت على ابراهيم وعلى ال ابراهيم أنك حميد مجيد
thanks sir for sharing your knowledge and very clear because the English explainaton.
it is my pleasure
u r a gem ! ... the best and most patient report style ever ... from the most known to the least known.. reaffirming anf repeating to ensure understanding .. thankyou and may ur god bless u .. cheers
best regards and lovely thanks for your valuable comment
I m concurring that! ❤️
Walkum aslam mashaAllah nice information
thanks a lot dear sister
شكرا لك استاذي الفاضل حسيب على معلوماتك القيمة وجعله في ميزان حسناتك
best regards dear brother
Thank you sir for giving me more knowledge on smps. This is my university. I want to help other people in electronics the way you help us. God bless you.
Hi friend thanks for the informative video and the time you take to make electronics more understandable
It's my pleasure
Excellent video dear friend, have a happy day!!!
Many thanks
Very good information.Because this problem.
Thanks and welcome
Good job Weldon keep it up
you are the best i enjoy learning electronic from you. ❤ from Aus.
Very well expainted smps thanks upload more videos
Mashallah Nice Sharing🌹💞💕👌
Stay Connected 👍
GOOD TICHING KARTE HO AP THANKS 👍👌👌👌
best regards and special thanks
Thank you very much for taking the trouble to give such a detailed lengthy explanations. 14th Dec 2022.
Lk 38 brother 👍👍👍
Many many thanks
Zbardast sharing
thanks a lot dear sister
Great and most sweetest lesson I ever enjoy in electronics.
Am currently having an issue working on a hybrid high frequency inverter showing error 09,after changing output mosfets,it change to 06,then I observe some zener diodes I changed off hand maybe I didn't get the real voltages,pls can u help me with real values of those zener diodes on the small output transformer...with codes zd3,7,8 .
It's 5kva/48v.
Thanks and more blessings to your home
very intresting.....thanks sir ji.....
Most welcome
🙏💓valubal teach pranam sirji 💓🙏
thanks a lot bhai
Very good and useful information sir thanks for sharing this knowledge to us
Most welcome
Wa aleikum salam varhmathulla......jazzak allaha kairan
Very nice good
thanks a lot bhai
Great teacher. Ap pr ALLAH ki rehmatain hon
aameen
Jazaak Allah khair
Informative video. Thank u so much.
most welcome
Excellent sir, Thank you so much. Thank god for being a student of you sir🙏 Greeting from chennai. india
It's my pleasure
Thanks bro your video is great you always explain in details that is why I love watching you video have really learnt alot from your video
Well done Haseeb thanks and greetings from Sydney.
Best regards and special thanks for your valuable comment
بارك الله فيك أخي الغالي
بالتوفيق
best regards and special thanks
Very informative....thanks sir ji...
So nice of you
you are always clear explanation of smps circuit
best regards
Nice lods and thanks for sharing your knowledge ❤
So nice of you
Good sharing
thanks a lot
Beautiful lecture, nicely explained tks A LOT
i am thankful
As-salamu alaykum superb video
wa alaikum salaam dear brother
i am thankful
May God reward you, brother Haseeb
best regards
Excellent explanation
best regards 💕
Thank You Very much Sir! I realy apreciate your effort. It is always helpful.
Hi sir i learn alot from your videos from Trinidad
Nice video sir
best regards
Excellent explanation _ GOOD JOB.
best regards and special thanks
Good evening brother. I hope our whole family is doing well. Great sharing as always
best regards dear sister
Very nice sir
Thanks and welcome
Well explain 👍 thank you so much for sharing this video stay connected
Excellent information. Thank you sir.
You are welcome
It's simple good explanation guruji
thanks a lot bhai
Nice explaination. Basicly use off line transformer. DC swich only produce one direction magnetic field.
in uni-polar designs like (flyback, boost) topologies it generates unipolar magnet, and in bilpoar switching topology, then there is bilpoar magnetic flux
ممنون مهندس عالی بود
thanks a lot dear brother
Very nice 👍👍👌👌👍
Jazak Allah Khair.
best regards
You are great sir
thanks a lot bhai Ji
Sir very well explained thanks for sharing💯❤
Jazak Allah
Big like For Good Work My Brother
thanks a lot bhai
Thank you very much for this video.
Please explain the output section of a high frequency inverter. That is from 300 volts dc to 220 volts ac 50 Hz.
Iam getting low output voltage. Fans are running slowly. How can I increase output voltage. Please explain. 🙏
Always love your videos... please post more repair videos... 5hank you!
best regards and special thanks
sure i will share more repairing vlogs, as my viewers have a lot of questions so i have to reply their comments as well
@HaseebElectronics It's worth to also mention that it may be also a failure in the transformer winding... I'm fixing right now a Modecom ATX SMPS with both failed switching transistors,bruned fuse and desoldered one leg of subber resdistor. I fixed that problems, turned on PSU, and I notice that output voltages are very low, fo example 12V rails has 1 point sth Volt. I also noticed that snubber resitor gets very hot and after some period of time, transystors failed once again and "blew" a fuse once again...
After that failure, I inspected PSU closer and more precisely and I noticed that transfomer has sheinked nad wavy isolation. and looking from the top I also noticed that isolation layersare melted, so I removed transformer, disassembled it, what wasn't easy, because isolation tape was so badly overheated that it falls apart, so I had to scrape it peace by peace and I noticed that one of the wires in the center-tap tail is blackend partially, burned!!!!
I have 2nd PSU based on the same chassis, but with increased output power, so I borowed transformer and transistors from it, put my patient back together and bam, it worked!!!!
Transformer failed, but I have to admit that anyways it done the job perfectly, becuse isolution worked and didn't allow the sec. winding short itself with primary!!
Thank you my brother for sharing all this great knowledge really appreciate your work I have a smps that used to work from 100v to 240v AC but recently started working only at 240v can you please tell me what might be the problem why it's not working at 110v anymore thanks in advance.
if possible, can you please send its picture to my whatsapp 00962-79-1161-084, so i can get a clear idea about the circuit and can reply
Great...
Thanks for sharing
thanks a lot dear
amazing analysis
best regards
W assalam Bhai
Mashallah zaberdest Bhai nice video
best regards dear sister
Good video
Sir you're videos are extremely helpful and I would like to thank you for that, can you make a video about :how to convert 3 phase input of VFD into Sigle phase input but the output of both are 3 phase. we only want to change the input while the output remains the same
Super video 👍
it is my pleasure
Thank you very much sir 🙏🙏🙏
Most welcome
Shukriya Maestro
most welcome dear
Great Teacher l❤
ماشاء اللہ بھائی
thanks a lot
Very good explain sir Iam from srilanka
Thanks and welcome
Good video
thanks a lot
Nice video
ماشاءاللّٰه 👌👌👌👌
good video
best regards
nice sir. 5 star.
best regards
Very informative video sir. You said in absence of snubber, it will cause oscillation effect. I would like to learn more on this. If you have any example video of some snubber circuit failed and cause the oscillation effect would be very helpful for me. Thank you sir.
kindly check video number 510 & 284. that is on snubber circuit
@@HaseebElectronics tq sir 👍🏻
Thank you so much..
It is my pleasure 💕
Thank you!
You're welcome!
Nice info ones again ?Can a optocoupler use for the switching????
best regards and special thanks
yes optocoupler is used for switching. just set its ESR value high to drive the optocoupler in saturation
try to use TLP250, TLP350, HCPL3150 CY17 type optocouplers that is specially for isolating switching optocouplers
of use any IGBT / MOSFET driving optocouplers
thx yours video and sharing
Thanks Sir.
best regards
Merci beaucoup
Bienvenue cher ami
Please do video of RC Shubert circuit, differnce between rc and rcd snubbed. Thank you
Hello sir thanks a lot for your good explanation. I have a question: in a smps that I want to repair it, with replace x capacitor voltage on secondary side appear on 12V. But when install a load to it voltage dropped and fluctuated to 0-5 volt and load does not work. Please help me. 🙏🏻🙏🏻🙏🏻⚘
Thanks!
thanks a lot for your valuable support
Excellent work brother 👍
Thank you so much 😀
helo sir,, may i ask u about my 330amp welding machine proquip brand the welding output is very low it only spark 4or5times then d overheat light will switch on then the smps resistor and switching transistor are very heat.
Jzk Allah kheir
Simply excellent!!!
Thanks for the interesting video. Can the sensing resistor do also problem ?
Can you please explain in a video how op amps are used as atx supervisors and how tobypass them to increase voltage. Thanks.
This man his the best
i am thankful dear
please accept my best regards for your beautiful encouraging comment
Pls can you do a video of how to solve oscillating problem in igbt welding machine
many thanks, sir.
most welcome
Bhai frequency badhane aur Kam hone se output voltage par kiya farq ho ga aur
Aur frequency ka kam ya ziyada hona kiya Maine rakhta he please tell me
I have a 36V/10A SMPS which keeps burning one of the two power transistors a few seconds after the load is connected. It is always the same transistor. Could you explain that for me?
Thank you
Sir, I know a question to you.a power supply when the load is on the out voltage is low.please tell me what can I do.
i think that the resistance in snubbing circuit is much more greater that the resistance of the main winding. so even if the diode in the snubbing circuit is failed, there will be still switching. correct me if i am wrong.
no dear
this resistance is also low with compare to the inductive reactance of the primary winding
primary winding's dc resistance is always low but ac resistance working at high frequency is very high
you can check video number 284 & 510 on rcd snubber
@@HaseebElectronics thank you for clarification.
اللهم صل على محمد وعلى آل محمد كما صليت على إبراهيم وعلى آل إبراهيم إنك حميد مجيد
Thx
Low side switching is simple and easy to protect its gate but high side switching is something else I use gate drivers transformer and switching 22 volt to mosfets gate the gate is rated 20vgs but I measure the gate voltage and it’s 160 volt volt from the two switch forward converter can you explain why the mosfet gat no blowing out at the voltage I don’t have a ziner diodes to protect the gate