{1002B} SMPS output voltage fluctuating, unregulated output

[@electroniquepassion]

Nice sir 👍👋👋

[@HaseebElectronics]

best regards and special thanks dear friend

[@AayatNomi]

Beautiful sharing

[@HaseebElectronics]

thanks a lot

[@AayatNomi]

@@HaseebElectronics well come bhai

[@chinnarao326]

Resp Sir! Very Nice Sir. Thank U Very Much for Nice Cooperation Sir. -- -- ChinnaRao PADERU Andhrapradesh

[@AayatNomi]

As salam u Alaikum bhai Khariyat bhai

[@HaseebElectronics]

wa alaikum salaam yes i am fine and hope that you are also good

[@AayatNomi]

@@HaseebElectronics yes i am also fine

[@omiza3416]

I am trying to learn electronics from youtube and your channel is very helpful

[@W1RMD]

I was surprised to see Nichicon capacitors go bad, but might be fakes even though they have a good name on them. There is a "Mr. Carlson's Lab" video where he disassembled two capacitors, both have a good brand name, I think it was Nichicon, and you can see a big difference in size between the counterfeit capacitor and the good one. I'd like to build his leakage detector, but in the mean time I use a micro amp meter in series as I slowly increase the voltage with a variable transformer. Electrolytic capacitors always have SOME leakage, but it's in the range of about 10 micro amps after they are fully charged. Pretty cool watching how the needle jumps around quite a bit, even on a good capacitor. Thanks for sharing these SMPS'S with us! Always job security with as many of these that are out there.

[@kaizen1071]

The king haseeb electronic.👍❤️

[@Viso81el]

Beautifully done! Thanks

[@HaseebElectronics]

best regards and special thanks

[@sandeepmane2983]

Nice information video 📹 👌

[@1kimdotcom]

You are a genius Sir 😃

[@HaseebElectronics]

Thank you so much 😀

[@mimisabu2121]

Emeğinize sağlık hocam

[@HaseebElectronics]

değerli sözleriniz için çok teşekkür ederim

[@CliveTrezona]

Hello Mr Haseeb. Is it not better to use more capacitors in parallel to have a lower ESR?

[@HaseebElectronics]

yes, you are right.

[@muhammadishtiaq24]

Excellent thanks for sharing

[@HaseebElectronics]

best regards

[@rohanranjandesilva465]

Beautiful share thanks 🙏

[@Solder_it]

I would like to share something i learned about capacitors, if you have 1 UF 35v and you want to replace it with the same rating you need to pay attention to all the details such as esr and low impedance and its more expensive, its the same rating 1UF 35V but you will see some marking on it, and by checking the datasheet you will know if its completely the same or there or its different. If you are repairing some expensive industrial power supply or any other expensive things make sure you put the same cap. This is what i wanted to add. Thank you

[@sanwadaya6655]

Super explain Sr ❤❤❤

[@HaseebElectronics]

Thanks and welcome

[@tawkeer7]

Dear Sir, many of your videos feature such power supplies (rectangular, adjustable voltage, 12V, 5A, 60W). May I ask what application they are used in (battery charging perhaps)?

[@miloradgraovac74]

BRATE bio sam na odmoru u bolnici.Moram da kazem da mi sesviđaju praktična izlaganja

[@osamakosara]

Sir first of all, thanks for all your informative videos, Sir what is the cause of blowing the capacitor here?

[@tihamerfazakas6501]

Bună ziua. Respect pentru cea ce faceți. Am si eu o sursă de genu 12v 4.1 amper. Mi-a crepat 2 condensatori și sa ars si intecratul UC3842D. plus rezistenta de la mosfet de 22 microfarazi care merge la pinul 3 al mosfetului 5N65C. Ce cauzează explizia condensatorilor? Cu respecr.

[@nathanieljames7462]

Good work! Do you test under load? I have a power supply that makes the correct voltages until it is loaded.

[@susantaatha6468]

Very nice. Thank you sir.

[@chessapk5034]

the only thing. which you certainly know, the overall ESR will be slightly higher now due to parallel resistance of the 4 caps ESR vs 2 caps ESR. but it wil probably be fine especially if the new caps are a quality brand name

[@ISO07ISO]

Selamün aleyküm haseeb hocam. Yayınlar için teşekkürler. İki kondansatör kullanmak uzun dönemde fazla yüklenmeden dolayı kolay hasar görür mü? Kapasitörleri bozan belli başlı faktörler nelerdir? Allah'a emanet olun.

[@HaseebElectronics]

hoş geldin sevgili kardeşim. kapasitans değeri aynı olduğunda aşırı yüklenmeyecektir. sadece dahili ESR değeri biraz yüksek olabilir. 4 kondansatör, her biri paralel 1000uf ve ben 2200uf paralel kullandım, sonuçta kapasitans 4400uf civarında olacak ama ESR'de ufak bir artış olabilir ama herhangi bir sorun yaratmayacağını düşünüyorum

[@Edmorbus]

Thanks for another great video

[@tihamerfazakas6501]

Bună ziua. Am și eu aceasta sursa și nu reușesc să-l depanez. Au pușcat condensatorii de 1000 de uf. IC Ul și rezistorul de 0.22 ohmi de la pinul 3 al mosfetului. Toate le-am inlocuit mai puțin rezistorul de 0.22 ohmi nu am găsit. Temporar am montat un rezistor de 22 ohmi. Pe ieșire am 5 V .Poate cauza acest rezistor problema mea? Menționez tranzistorii sunt buni octocuplorul este bun IC-ul am pus nou și condensatorul de 22uf al ic ului este nou. Diodele sunt bune inclusiv diodele zener.

[@nayanjagirdar8408]

Nice sir👍

[@omarolman]

thank you

[@HaseebElectronics]

You're welcome

[@gauripartapshanker9197]

Knowledgeable vedeo. But why use manufacturers 04 capacitor in parallel when single or double capacitor same Microfrade can solve the purpose. Pls clear this.

[@Edmorbus]

Can you help me with Circuit schematics for capacitor scr and zener cap dump

[@SuperHEROdes]

Great tutorial, already like comment subscribe. I'm from Indonesia, I have a problem with the SMPS on the "ANJING" brand battery charger made in China using IC UC3842B on leg 7 (imput) with a voltage of 12 - 14 VDC, on leg 6 (output) there is a pulsating voltage of 0,5 - 1.5 VDC which goes to the MOSFET gate 7N65, on the drain leg the voltage is 210 vdc connected to the transformer leg, primary Elko voltage 320vdc, output 0 vdc, where do you think the problem is sir? I removed and checked several important components in the primary and secondary which had normal values... In this conditions, is the UC3842B still normal or is there a problem? Thank You

[@tvbox8478]

👍

[@will_doherty]

Surprised that the output was fluctuating so much whilst not supplying any current - had the circuit been under load I wouldn't have been surprised - the capacitors weren't anywhere near as bad as I expected them to be maybe they fail more under the higher voltage when in circuit?

[@mehmeteminkorkmaz3013]

Ve aleyküm selam güzel insan 👋

[@rajesno5538]

Pl.sir request leser printer power suply dagram explain.

[@dlggamer7014]

I think its gonna be better to have 4 capacitors, because all the stress goes to those 2, but if u have 4 its divied equally among them and they can store power more effeciently

[@gamiwv]

I almost always prefer to have more capacitors in parallel . You have 2 good capacitors 1000uF/16V. So you can achieve 6400uF/16V

[@g4z-kb7ct]

When two caps are found out of tolerance/failed it is good practice to replace all of them because the other two will fail soon. They are your typical badly made cheap chinese caps from early 2000's that have known issues with bulging.

[@gamiwv]

@@g4z-kb7ct "...it is good practice to replace all of them ......" agree

[@warsitohuang7449]

My Name is Warsito, from Indonesia, if the part no of IC ,was erase, what part no we can use.. ex : out put 24 Volt 3 A.

[@g4z-kb7ct]

I have the same problem here... I leave things lying around piled up and they start multiplying then there are more appearing from nowhere hehe!

[@TharukDulan-us8fi]

Hii big fan..0H=Q0F IC SOT 23-6 (6PIN) WHAT IS THIS IC BROTHER I can't find it

[@HaseebElectronics]

i tried to find but i cannot find any relevant data for SOT-23-6 package www.smdmark.com/zh-CN/search/code?id=OH www.smdmark.com/zh-CN/search/code?id=0H

[@hpadhan]

4000mf

[@iofirm7454]

pcb smoke

[@pravinpadhiyar2]

Hiiii sir how are you

[@HaseebElectronics]

thanks brother. i am good and hope that you are also good

[@lokmangoksal7970]

Hocam Türkçe alt yazı, yapmamışsın izleyemiyorum

[@HaseebElectronics]

Türkçe altyazıyı zaten ekledim

[@Mohammed.Rakib-te2dk4co9q]

Haseeb sir apka Whatsapp number milega

[@HaseebElectronics]

00962795608616