Thank you very much for these continuing very helpful videos. I had a refrigerator that had flashing LED lighting as bad symptom. I just shotgun tested diodes and found the Zener shorted. These videos are SO helpful for teaching me CORRECT analysis. I now see that the Power Supply was turning itself on/off (fluctuating) to cause the 14VDC LED circuit to flash the lights. Very helpful video.
@HaseebElectronics2 жыл бұрын
it is really a most valuable comment for my. it is my pleasure to share my experience so if my efforts are helpful then it is biggest reward for me please accept my best regards and special thanks
@opposites-3692 жыл бұрын
wa'alaikumussalam warahmatullahi wabarakatuh, Salam from Indonesia, is the best for my life to found this channel 🙏🏻
@vikrammishra9136 Жыл бұрын
Please make a detail video on led driver circuit because most of house hold use led light and it is demanding a lot no any satisfying video on led driver circuit if it is available your way of learning is massaallah .thanks in advance.
@anonhollmuller40322 жыл бұрын
it tries to restart all over ...thank you! may the day will come for us to speak.....eye to eye, ear to ear. i wish you good luck and live long:)
@sherinthomas1726 Жыл бұрын
A very good presentation, hats off to the lucid style and voice modulation. I have seen most of your videos and all of them are worthy to view and understand. May god bless you. Thank you very much. With deep love from Kerala a State in south India
@poweronadministracion95082 жыл бұрын
Dear Haseeb, I never apply mains and power up a failed equipment before I have checked all power semic and electrolytic capacitors. The 5V1 zener you found shorted- dead in 5V section seems to be for overvoltage protection purpose. When you unsoldered it the output voltage climbs to 5.8V and the 12V section increases too. My diagnosys is: 5V section output voltage must be callibrated to 5.0 V so the 5V1 protection zenner never conducts and never slowly heat up and burn. If power supply not suffered an overload problem there s no other reason to get this type of failure.
@BlackOpsJuJu2 жыл бұрын
You are the best Repair Tech Ever and also Explain the circuit so Well Love All Your Vids Thanks for Sharing can't wait till the next one !!!
@HaseebElectronics2 жыл бұрын
i am thankful for your valuable words, please accept my best regards and special thanks
@sonubaba69062 жыл бұрын
Sir ap bht khobsutat brief krty Hain lykin kindly Urdu m Kya Karin shukria
@HaseebElectronics2 жыл бұрын
بہت شکریہ بھائی آپ اردو میں میری ویڈیوز میرے اردو چینل haseeb electronics urdu پر دیکھ سکتے ہیں۔ وہ چینل میرے اردو بولنے والے بھائیوں کے لیے ہے
@blackartista2 жыл бұрын
Its always a pleasure seeing your video notification. thanks
@HaseebElectronics2 жыл бұрын
wow it is your greatness and my pleasure please accept my best regards and special thanks
@blackartista2 жыл бұрын
@@HaseebElectronics respectfully accepted
@ShineSakshi2 жыл бұрын
You not only have good command upon the topic but also have a fantastic command over the Explaining method Awesome tutorial in perfect way Stay blessed my Respected Brother Keep shine ⭐✨
@HaseebElectronics2 жыл бұрын
boht shukriya piayari behna , khush raho
@user-cs6ly5qe1x Жыл бұрын
ow thank you for your lecture all of your tutorials are direct to the point and at high quality when it comes to electronics theory and practical. from Philippines hehehe❤
@janasmeal79162 жыл бұрын
ma shaa Allah fantastic and superb informative tutorial. thanks for sharing
@W1RMD2 жыл бұрын
All diodes secretly want to become jumpers in their next like. Great one! I enjoyed it!
Mashallah very good explanation sir thank you for your valuable time to teach us
@meandbabajan762 жыл бұрын
Best regards to you and your adorable work
@saleemkhan-mx9jw2 жыл бұрын
Most useful technical knowledge for all related person. Thanks
@HaseebElectronics2 жыл бұрын
Most welcome dear brother
@hichamtassi17532 жыл бұрын
Nice Video ! as usual my favorite teacher ! God Bless you
@HaseebElectronics2 жыл бұрын
please accept my best regards and special thanks
@Gelf542 жыл бұрын
Nice. Should D6 be drawn across C8 in-place of the short circuit shown? Edit: Corrected in your thumbnail I see.
@kahlid-ataya2 жыл бұрын
thanks for sharing do you have a video about induction cooker?
@tapashaldar15062 жыл бұрын
Thank u sir for this great video...All video r very helpful & knowledgeable .. Sir i have a 24volt 5A smps but output volt is flauxtuate in no load condition & some noise occurred also main filter capacitor volt is 153v. What is the fault..Please help me.. Sir hindi main agar video banai to aur jada clear hoga samaj ne mai...Thank u sir...
@Ramkumar-le4me2 жыл бұрын
Hi nice explanation. Could you please explain push pull ,forward converter with design reference and calculation
@HaseebElectronics2 жыл бұрын
best regards sure i am planning to share it soon
@arekrouet_82182 жыл бұрын
Asssalamualaikum, fantastic tutorial very clear and help a lot for me as begineer. Thank you.😀
@Dr.QaisarAbbas992 жыл бұрын
Nice job dear brother 👍Stay safe and happy
@rammohan54352 жыл бұрын
Thank you very much sir very useful and nice video sir
@HaseebElectronics2 жыл бұрын
Most welcome
@Simon-dd4gk Жыл бұрын
Thanks for the tutorial. I am trying to fix a original Nintendo console with fluctuations to the voltage. I'm basic at this, so it may take me a while to find the fault
@omarolman Жыл бұрын
dear sir I like how you explain circuits .I would like to know when you rotate the trimmer at the exit of circuit o regolate 12 V where this trimmer act ? in wich part of the circuit ? regards
@kuchpanktiyajindagiki2 жыл бұрын
Again I am here to say good evening and happy weekend to my brother. Knowledgeable sharing
@HaseebElectronics2 жыл бұрын
thanks a lot dear sister
@arbabnorway20272 жыл бұрын
Mashallah very Informative vidoe Thanks for sharing
@boybravo6892 жыл бұрын
Good trouble shooting technique for this type of smps sir it is applicable this type of trouble shooting for other type of smps sir? tnx
@HaseebElectronics2 жыл бұрын
please check video number 528 that will enough for any type of smps
@boybravo6892 жыл бұрын
@@HaseebElectronics tnx for the reply sir tumbs up done sir
@dhananjaykhapli28722 жыл бұрын
Can we check if the feedback ckt is ok or not,by giving 5v externally at the output side?
@anissbencherqui35402 жыл бұрын
Thank you for good and clear explaination . you are the best .
@HaseebElectronics2 жыл бұрын
You are welcome! please accept my best regards
@anissbencherqui35402 жыл бұрын
@@HaseebElectronics Ok
@robertwood42342 жыл бұрын
Thanks for all your videos. I've learned alot about SMPS. However, I've been working on a 3 output laser printer power supply that failed after sitting for a year or so. I checked all the caps, diodes, and the MOSFET with no luck. What I finally found was that the hold up capacitor for the controller chip was 47 ufd, as printed on the part, but the ESR was about 200 ohms which is obviously way too high. Once I replaced it with a new part, the supply came up and works fine. So, the lesson learned is that it is not enough to measure only the cap value, but also make sure the ESR is low (
@HaseebElectronics2 жыл бұрын
wow it is really awesome it is my pleasure that my efforts are useful for my viewers please accept my best regards
@arunkumar-bh2dp2 жыл бұрын
you are always good explain of smps. what is difference between fly back transformer and chopper transformer
@HaseebElectronics2 жыл бұрын
thanks a lot. every smps transformer is chopper transformer in early days any smps transformer was called chopper, at that time only one type switching topology was used which is flyback. but now there are numerous topologies to switch and we design a transformer as per our requirements
@vijayakumarkumar91902 жыл бұрын
Very good and useful information sir thanks for sharing this knowledge to us
@HaseebElectronics2 жыл бұрын
So nice of you
@CHANNNELAHMAD2 жыл бұрын
eautiful Masha Allah Very nice sharing Stay blessed and stay safe Always be happy
@ummoibrahimhassan46162 жыл бұрын
Wa alikum salam u r good in teaching
@HarlavanisPanagiotis2 жыл бұрын
Excellent video dear friend, happy weekend!!!
@ranasinghearachchi1709 Жыл бұрын
Welldone sir, really good video
@HaseebElectronics Жыл бұрын
Many thanks
@giorgostexnikos69762 жыл бұрын
excellent analysis.thenks proffesor
@HaseebElectronics2 жыл бұрын
special thanks
@gkhan1446 Жыл бұрын
MashAllah very good thanks 😊
@HaseebElectronics Жыл бұрын
best regards
@ARA-HOUSE2 жыл бұрын
Lk 32 good job brother 👏👏👏
@rashminaik6039 Жыл бұрын
Good one...sir ji...
@HaseebElectronics Жыл бұрын
Thanks and welcome
@Ushasharmakitchen2 жыл бұрын
good afternoon brother very helpfull tutorial for ppl good work 🙏
@susantaatha64682 жыл бұрын
Beautiful information
@HaseebElectronics2 жыл бұрын
So nice of you
@udithasanjeewa93922 жыл бұрын
🙏🙏🙏 Best explanation sir... God bless you .
@geraldfactor57812 жыл бұрын
👍👍👍 the value of zener sir is 5v?
@HaseebElectronics2 жыл бұрын
1N4733A
@mdmobasshermimobassher10052 жыл бұрын
nice video .thanx sir
@HaseebElectronics2 жыл бұрын
Special thanks
@orlandoalarcon415810 ай бұрын
profe tengo una fuente , gpm-200a la salida 5v es normal la salida 12v fluctúa entre 9v y 11v no es constante, gracias
@rakeshkumarchopra36242 жыл бұрын
Superb Sir
@HaseebElectronics2 жыл бұрын
thanks a lot
@k3lanka2 жыл бұрын
Yes dear Good job 👏
@zahidainkitchen2 жыл бұрын
Nice sharing 👍
@CookingKhabir2 жыл бұрын
100 like very nice
@rattamarengineer61132 жыл бұрын
Hello sir how are you exillent video
@HaseebElectronics2 жыл бұрын
So nice of you
@lvwilb56872 жыл бұрын
good video but why did you not put a diode across the optocoupler and check for heated component.
@Versatiledani2 жыл бұрын
Very informative video
@abcabdi8523 Жыл бұрын
Thank You. what Is 1.414V?
@HaseebElectronics Жыл бұрын
it is RMS to peak voltage conversion
@TheBassline303 Жыл бұрын
Do you have any idea why the circuit is working fine with lower input voltages for e.g 150 V but breaks down at 230 V? The main cap is fine. Checked all electrolytic caps. power is unstable in the feedback circuit.
@HaseebElectronics Жыл бұрын
please increase the resistor value connected in vcc section, in series with auxiliary winding and the diode. there is a resistance normally 10 ohm to 47 ohms if it is 10 ohm, try with some higher value 15 ohm, 22 ohm or 33 ohm and check result also check startup resistance (connected between main dc capacitor's +ve terminal and the vcc pin of the smps controller) try to increase some higher value (for example if 200K add 10K or 20K and check result) verify VCC capacitor connected at vcc pin of the smps controller ic
@TheBassline303 Жыл бұрын
@@HaseebElectronics thank you, i will try that 😀
@farihabaloch48052 жыл бұрын
Super fantastic 👍💯
@farajiabilahi73932 жыл бұрын
I was repairing an adapter, a power supply for digital weighing balance machine, specifications for this adapter printed outside of the adapter case shows the output voltage is 15v, the adapter had problem of voltage fluctuation, after following your video I was able to change the Vcc capacitor and problem was solved (no fluctuation anymore), however after repair the when i tested output voltage, results was 22v, is there any explanation for this, what could be a reason and what could I do more to rectify this second emerged problem of voltage output being 22v instead of 15v?
@HaseebElectronics2 жыл бұрын
welcome dear did you replaced the same value of capacitor if it is the same then change optocouoler
@gayanwijethilaka91352 жыл бұрын
Sir , i have two questios 1) If we found a zenor in a circuit that is completly burn out,that means we cant find the zenor number of that diode how can we find the zenor voltage at that point? 2)If we want to see fluctuations, the analogue multimeter is the good multimeter for that?
@HaseebElectronics2 жыл бұрын
if there is no number on the zener diode's body then it becomes headache but we can analyse the circuit, sometimes we get alternate to see fluctuations, analog multimeter is not much helpful as it have mechanical pointer so it have no quick response with compare to digital multimeter. digital multimeter have quick sampling so it is better than analog.
@hadirizvi26702 жыл бұрын
Thank you for this video, sir we are making a switching charger for 48V 24A lithium iron phosphate battery for ebike, we have arrange all parts except flyback transformer, for 48V 6A flyback transformer where to buy please advise.
@muhammadishtiaq242 жыл бұрын
Excellent thanks for sharing this information
@osmancanbaz7312 Жыл бұрын
Dear friend I am from Türkiye I follow your videos I need your helps I am an old technician How to find schematic like this for smps (without schematic its not easy to find the problems)
@dabdoube922 жыл бұрын
I didn't understank what the Zener diode was for. Could you explain that again please ?
@HaseebElectronics2 жыл бұрын
yes dear. i am going a very detailed video on this power supply as a power supply model. and i will explain it in detail.
@dabdoube922 жыл бұрын
@@HaseebElectronics Still waiting for that Zener diode explanation. Any plans yet ?
@realisticartist92122 жыл бұрын
Sir i need one help, we have used one design of smps using ACT364-US-T Primary Switching Regulator IC. Because of it theres no need of optocoupler in design. Bridge is giving 311 volt to primary. We are using bu508 for switching. We are using EPC 13 bobin to drop down vtg upto 5v and 1a. But certainly we are not getting the voltage. Like we have 0 voltage at output. Can you help us where the problem might be.
@msbbadsha14562 жыл бұрын
Awesome video
@HaseebElectronics2 жыл бұрын
best regards and special thanks
@khanlalavlogs2 жыл бұрын
Great informative video shared, keep it up.
@k3lanka2 жыл бұрын
Thanks Thanks dear 😘❤☺
@adilzahidan55802 жыл бұрын
Salam and chokran Brother haseeb..please can i replace ice2a180z with ice3br0665j Power ic.?!
@nayanjagirdar84082 жыл бұрын
👌👌👌👍
@HaseebElectronics2 жыл бұрын
best regards
@mehaktravel2 жыл бұрын
So nice
@sanjaykumarsharma79212 жыл бұрын
Sir aapke pas top244pn ic ka smps diagram hai to pls send me ya phir is pr video banaye ( ESAB welding machine ) thankyou
@zainarabicteaching2 жыл бұрын
Good work
@AbdulMomenZargar602 жыл бұрын
Walikum Salaam
@HaseebElectronics2 жыл бұрын
thanks bhai
@gurkandemirtas76732 жыл бұрын
S.a. mubarek, why the multiply ac v. 1.414?
@franskwaks5915 Жыл бұрын
You always talk About a flyback converter but wat is or do you mean with flyback.
@HaseebElectronics Жыл бұрын
kzfaq.info/get/bejne/eKmerbF90J-VhGg.html please check this video, if it is okay please give your feedback and if any query, please let me know. i will discuss in detail.
@christosmakariou45742 жыл бұрын
Did anyone notice that the Zenner diode's output side, R3 input side, and L3 outputs side, and the SMPS's ground and C8's positive terminal are shown as the same node? I think the schematic is shown (follow the dots where all the lines cross) has an extra dot that should not be there otherwise the second output the one in the middle should be at zero volts. Which one should not be there? Anyone knows? The Schematic is shown at timestamp 1:42. Also please include the link for the video he promised to explain how the output circuit should work right at the end of this video.
@HaseebElectronics2 жыл бұрын
i salute you for watching my work deeply, i already added correction in video description, that there is a confusing short link acrocc C8 capacitor, the current limiting resstor R3 is connected to +5 volt line (c8 capacitor +ve terminal)
@HaseebElectronics2 жыл бұрын
yes dear that video is still pending, i will explain it
@christosmakariou45742 жыл бұрын
@@HaseebElectronicsI just looked at the description and there is no new comment regarding the short across the 5v cap. In addition at time stamp 17:00 where you discuss the role of the Zenner diode in conjunction with R3 and the optocoupler, its confusing taking into account what you just replied, i.e. that R3 is connected to the Cap + terminal and not with the diode. The role of that Zenner diode is still not clear in this case.
@HaseebElectronics2 жыл бұрын
@@christosmakariou4574 no problem i will explain it in detail with corrections and apologies
@shefqetkaralliu68162 жыл бұрын
Grazie 👍
@vijaythakurrfab-jf44392 жыл бұрын
Awesome 👍
@HaseebElectronics2 жыл бұрын
special thanks
@asmafoodvlogs99542 жыл бұрын
Nice shirng🌹🌹✅
@HaseebElectronics2 жыл бұрын
best regards and special thanks
@bongelectronics77732 жыл бұрын
Watching bong
@Thong-Eit10 ай бұрын
hello sir why output voltage fluctuation 30-40V (output 12V) what wrong?
@marinvidovic7632 жыл бұрын
👏👏👏👏👏👏👏👏👍👍👍
@HaseebElectronics2 жыл бұрын
best regards
@ramswaroopsharma5446Ай бұрын
🙏🙏🙏🙏🙏🙏
@2153Annu. Жыл бұрын
Kya...yar dimag ka dahi kar diya...🤨
@HaseebElectronics Жыл бұрын
sorry bhai agr dimagh ka dahi hua to sorry again aap mere channel ko unsubscribe kr dein ta ka aap ko phir aisa loss na ho. aap ka time waste karney per sorry
@2153Annu. Жыл бұрын
Time waste nhi hua....bas english bol bol ke irritate kiya..... Mujhe koi bhi video nhi milli pure youtube par.... Output voltage problem k liye.. primary section bilkul ok and secondary no output ,, koi bhi shi video nhi mila.. hairani bhi hui aur gussa bhi,, ... ,,....
@HaseebElectronics Жыл бұрын
bhai ye mera English channel he, to is per English he bolta Hoon. aap mera Urdu channel Haseeb Electronics Urdu visit kr saktey hein wahaan ye sabhi videos Urdu language mein apney Pakistani aur indian bhaion keliey bnaata hoon
@HaseebElectronics Жыл бұрын
aap apni power supply ka problem aur us ki picture mujhey Whatsapp kr dein 000962795324272 or Gmail id ashraf4ta4
@bulentbayar632511 ай бұрын
Selamın aleyküm ustam çeviriler bölümüne Türkçe yi ekliyebilirmisiniz