Last time I fixed a power supply with an issue in feedback circuit it took me several hours, but using your method will make it so easy. Thank you so much.
@@HaseebElectronics sir you the best. Nowadays on UA-cam when am looking for electronics video's if i find your video it means have understand even before watching it. Easy explain but very informative. God bless you sir
Very informative and easy to understand explanation on how voltage is regulated in SMPS depending on the resistance of opto coupler transistor which is connected to the controller circuit.
yes dear, it is close loop feedback circuit, this regulation is done on CTR (current transfer ratio) method which is a ratio between the collector current and LED forward current
Do not find such tutorial in1982 when I was a student of electronics. any how great tutorial. I hope many many students will be the benefisher from such explained tutorial. 🌻🌻🌻
Really happy with subscribing to your channel. You are simply a real expert in both electronics and explanation. Grateful to all the information you provide :)
Salam M.Haseeb, my special and kind regards for this very clear video. I cannot wait to apply this to many silent PSU to see where is the problem. May God bless you for all that sharing. I can watch your videos for hours...
Thank you for your videos. They are extremely helpful!! I have an interesting circuit that I am trying to diagnose. The input side of the optical "resister" Is controlled by more than one component. One terminal has the resistor and the zenor diode, the other terminal has a transistor. Both of these are connected to the negative side of what I'll call the "emitter" side of the optical resistor. Would you mind explaining how this works? I can send you a copy of the schematic. This is in another switch mode power supply. Again, thanks so much for putting your time and effort into making these easy to understand videos! Much appreciated!
Thx for information but i have a question if my output is 300v how to i check then.you have output 3.3v but my power supply outputing 300 volt then how to i test feedback circute
HI, when regulating the output of a power inverter do i have to directly connect the optocoupler and the tl431 zener diode to the output voltage of 220vac through the limiting resistor and the resister network connected to the tl431?
yes you can use voltage divider resistor network to provide reference voltage to the pc817 and provide offest using some zener regulator in series. set the forward current very carefully to set proper feedback
Thank you very much for kindly and humbly sharing your incredible knowledge. For almost a year following your videos and learning much about circuits. This TL431 optocoupler is fascinating how PWM controller gets it’s feedback. One question though, the power supply injection in this case of 3.3 volts - is this dc or ac? Thanks very much for a reply…. Namaskar…
@@HaseebElectronics Sir your explanations are easy to understand please start a series of basic concepts of electronics like lcr circuit, Juel thief with practical.
No other You Tuber can explain so deep like you,today my concept regarding feed back is totally cleared. special thanks from the bottom of my heart.
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Excellent thanks for sharing this informative video keep sharing❤❤
There cannot be easier explanation than this. It's great video on SMPS feedback function. Thanks a lot.
Bahut achchi tarh se samjhaya
stay blessed always bhai
Last time I fixed a power supply with an issue in feedback circuit it took me several hours, but using your method will make it so easy.
Thank you so much.
best regards
it is my pleasure that my efforts are useful for my viewers
@@HaseebElectronics sir you the best. Nowadays on UA-cam when am looking for electronics video's if i find your video it means have understand even before watching it. Easy explain but very informative. God bless you sir
Excellent explanation of the feedback circuit using the TL431 and and a great testing technique.
Very informative and easy to understand explanation on how voltage is regulated in SMPS depending on the resistance of opto coupler transistor which is connected to the controller circuit.
yes dear, it is close loop feedback circuit, this regulation is done on CTR (current transfer ratio) method which is a ratio between the collector current and LED forward current
Assalamu allaikum Bhai jazakaAllah 👍 ap n to pora school khola h Masha Allah 👍 Jo log diploma kr rhy hn un k liay bhetareen h.
Very good explain
Beautiful video 👍 watch still watch
Ma sha Allah.
Do not find such tutorial in1982 when I was a student of electronics. any how great tutorial. I hope many many students will be the benefisher from such explained tutorial. 🌻🌻🌻
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This video just helped me verify that the feedback circuit in my audio receiver SMPS works! Thank you! :)
best regards 💕
A great video. I enjoyed the simplicity of your discussion. Thank you for sharing....many blessings my friend!
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Thank god, someone who speaks english. Good video, thank u
it is my pleasure. stay blessed
Masha Allah brother very informative about feedback circuit buhat khoub
Amazing Tutorial as Always
Big Like 👍
Bless
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Thanks good explanation.younes from Morocco jazaka ellaho akhi Karim
Well done!!
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Thank you very much!
please accept my best regards and special thanks
Awesome. Sending you love & support from Australia 🇦🇺❤️
Just great! Smps feedback circuit explained as simply as possible and testing also. Thanks a lot. 👍 and 🙏.
very nice explanation sir watching here from philippines👍
Really happy with subscribing to your channel. You are simply a real expert in both electronics and explanation. Grateful to all the information you provide :)
Mashallaha very useful tutorial. Thank you for sharing. very nicely explained. 🌻🌻🌻
May Allah bless you and increase your knowledge ahead
best regards and special thanks
Great description of the opto coupler! Thank you! Now I know how this works. I can see you're a big fan of the tl431 regulator.
best regards and special thanks
thank you very sir for sharing...your a very good teacher...god bless.
You are very welcome
Very nice sharing, stay blessed.
Спасиб, за знания,Друг! Прекрасный урок, очень полезный!!
MashaAllah , ap bahat acha samjaty ho Jazak Allah
I have seen lots of tutorial channel but i got only a few are doing good job, Undoubtedly you are one of them Brother... 👍
Another excellent video. The feedback circuit explained perfectly. Thank You !
Awesome excellent informative vedio mashallah good job big thumbs up from me thanks for the update stay blessed always be happy ameen
Swedish: Saklig och pedagogisk som vanligt, tack!
😀
Always very good sharing 👍
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Salam M.Haseeb, my special and kind regards for this very clear video. I cannot wait to apply this to many silent PSU to see where is the problem. May God bless you for all that sharing. I can watch your videos for hours...
10000 THANKS FOR THAT MY FRIEND
greetings from greece
Amazing work
May Allah Pak bless you always 😇
Like from 🇸🇦
Stay blessed
Enjoyed the full tutorial. Weldone! keep it going and going then going. 💚 💗 💚
You explained very well about the circuit 👌 .. I liked it 👍
Good evening. Your presentation is always superb my sweet brother
Asalamo Alikum Janab bhai Saab Great Job Liked It # 189
Well explained my friend
Very good sir .What a clear explain it is.thank you very much my dear master.
thank you haseeb sir you are awesome! insallah you make more of these videos!
best regards and special thanks
Very helpful, Sir. Thank You. I will try this technique at work.
Assalamualaikum im from indonesia 🇮🇩, thanks for sharing 😊
Wa Alaikum salaam
Welcome 😊 and special thanks dear
Very good sharing like
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You are most welcome
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My pleasure
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best regards
Beautifully illustrated Sir.
Thanks for sharing your knowledge, most excellent.
Thank you for your videos. They are extremely helpful!! I have an interesting circuit that I am trying to diagnose. The input side of the optical "resister" Is controlled by more than one component. One terminal has the resistor and the zenor diode, the other terminal has a transistor. Both of these are connected to the negative side of what I'll call the "emitter" side of the optical resistor. Would you mind explaining how this works? I can send you a copy of the schematic. This is in another switch mode power supply. Again, thanks so much for putting your time and effort into making these easy to understand videos! Much appreciated!
please send the diagram to my whatsapp 00962-79-1161084 or gmail id ashraf4ta4
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Ma sha Allah good work well explained 👍
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best regards and special thanks for your valuable comment
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It's my pleasure
excellent explanation, applause ...
Many thanks! and best regards
Thank you from kurdistan
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Eu adorei!
Sucesso!
Simply wonderful!!
best regards
Brilliant this helped so much
best regards 💕
Great upload video 👍
Nice explanation. Il be nice to see video about smps that regulate voltage and current at same time like those used to charge lithium battery.
Thx for information but i have a question if my output is 300v how to i check then.you have output 3.3v but my power supply outputing 300 volt then how to i test feedback circute
HI, when regulating the output of a power inverter do i have to directly connect the optocoupler and the tl431 zener diode to the output voltage of 220vac through the limiting resistor and the resister network connected to the tl431?
yes you can use voltage divider resistor network to provide reference voltage to the pc817 and provide offest using some zener regulator in series. set the forward current very carefully to set proper feedback
This is great sharing
Hello! i have a feedbac problem but in the Car amplifier, how to solve it easy? Thanks!
Thank you for sharing such a great video
You are so welcome
happy new year
Thank you very much for kindly and humbly sharing your incredible knowledge. For almost a year following your videos and learning much about circuits. This TL431 optocoupler is fascinating how PWM controller gets it’s feedback. One question though, the power supply injection in this case of 3.3 volts - is this dc or ac? Thanks very much for a reply…. Namaskar…
DC without ripple
@@bartdepauw1156 Thanks for your kind reply. God bless🙏
Merci beaucoup sir for this excellent explanation.
Nice explains thanks a lot 😊
Most welcome 😊
@@HaseebElectronics
Sir your explanations are easy to understand please start a series of basic concepts of electronics like lcr circuit, Juel thief with practical.
great sharing 👌 and 🔔👍done keep supporting stay connected ❤🙏
Very good video. Thanks
best regards
239 Só vídeo filé parça+uma super dedada no like+favoritado
السلام عليكم بتوفق ونجاح احل لايك
amazing explanation! thanks a lot!!!!!!!!!!!!!
You are welcome!