{621} TNY266PN Low Power Offline Switching IC - Explained

[@johnmonk3381]

Thank you for doing this video. My circuit is exactly the same one as in this video: kzbin.info/www/bejne/nIG4c6ltaLetrKs. It's the indoor unit pcb for LG inverter air conditioner. After much checking and replacing the snubber diode and 266 ic, the new ic I replaced with also blown. After that, I found the cap in RCD was also bad. So I replaced it. Before I tested the pcb again, I checked all the components in the high power side for short circuit and discovered one diode was shorted. So had to replace that one too. When I powered up the pcb again, the ic no longer blows. But I found the smoothing cap after the bridge was not giving a stable dc voltage, it was fluctuating between 75-220v, was expecting a stable 330 from 240vac mains. It's ironic the ic was still switching even with a faulty smoothing cap. So I had to replace that too, but I couldn't find the exact value (10uf 500v) so I put in a 22uf 500v, the voltage after replacement is 335v. As you suggested, I also checked the vcc capacitor for the ic and found 5.88 volts, which is satisfactory. I also checked the optocoupler and it is still good, no short circuit. For now, I assume the smps transformer is working fine because if it's broken, I can't find the replacement for it so might as well abandon the repair. For now the pcb seems to be working normally, and I hope nothing else is broken. Your videos gave me confidence to repair my own circuit. Many ac technicians even from LG service center itself told me the board couldn't be repaired and just scrap the entire unit. It's so satisfying to be able to do this when so many people told me I couldn't.

[@HaseebElectronics]

it is really a huge happiness for me that my efforts are helpful. so based on your all previous questions i discussed all possible features of this IC. best wishes and congratulations for your achievement

[@johnmonk3381]

@@HaseebElectronics Thank you sir. You are a great teacher!

[@HaseebElectronics]

please accept my best regards

[@manualspellcorrect9073]

@@johnmonk3381 Agreed.

[@W1RMD]

I now understand this circuit much better. Thanks for explaining the how the opto- coupler works. I didn't fully understand it before. Have a great day!

[@HaseebElectronics]

it is my pleasure

[@HarlavanisPanagiotis]

Excellent video dear friend, happy weekend!!!

[@HaseebElectronics]

thanks a lot dear friend have nice weekend

[@andiserang5145]

Sangat baik dan lengkap dan terukur akurat Data2 komponen elxtro 👍 uji ilmiah

[@Dennis-uc2gm]

Thanks for this video on the TNY devices. I just bought an assortment of these and was going to do something similar to learn how to use them. You saved me a bunch of time .🙂You have one of the best SMPS channels explaining how this all works.

[@128mahmoud]

شرح رائع بارك الله فيك please contain year lessons very good explanation excellent

[@Hardeepsingh-re8xn]

fabulous video as always ....you are a genius......well done.....thanks

[@HaseebElectronics]

Thank you very much!

[@Murshadstudio01]

Beautiful sharing ❤

[@HaseebElectronics]

thanks a lot dear

[@CookWithShabinaaz]

Nice friend👍😊😊😊😊 sada khush raho ❤❤❤❤👉👍

[@nimaesmaeil9318]

سلام استاد عزیز. از خداوند برای شما و خانواده تان سلامتی زیاد میخواهم

[@HaseebElectronics]

most welcome dear brother

[@ahmedabdelrahman3712]

very good explanation. Thank you

[@HaseebElectronics]

You are welcome!

[@fatimaKitchen12]

Walkum aslam bhai mashaAllah great work

[@HaseebElectronics]

thanks a lot dear sister

[@vlogswithraj6491]

wow great job and good information sir

[@HaseebElectronics]

Many many thanks Raj Bhai

[@hiralifestyle]

Great sharing .👍Mashallaha great

[@HaseebElectronics]

Thank you so much 🙂

[@educationhub760]

AWESOME, What a wonderful upload,ivo 👍 thanks for sharing this beautiful upload, you did a great job my friend, there is so much to learn, your work ethic amazing, i am here to show you my support, saty safe and connected....

[@HaseebElectronics]

best regards and special thanks for your beautiful comment

[@zafariqbal7570]

Always wanted this type of content on youtube, never imagined it would be from Pakistan. Proud of you sir. Can you make a video about your life?

[@HaseebElectronics]

thanks a lot bhai it is my pleasure i am proud being Pakistani you can check my urdu channel (haseeb electronics urdu) there all my videos are in urdu language

[@arun.karekar]

Thanks...very informative....

[@HaseebElectronics]

best regards and special thanks

[@maukhhowlader8599]

Very nice 👌

[@HaseebElectronics]

best regards

[@vijayakumarkumar9190]

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

[@HaseebElectronics]

it is my pleasure

[@thehooplabs]

Gee informative video shared brother like always, in a very detailed manner. Keep up the good work.

[@HaseebElectronics]

thanks a lot dear brother

[@electronicsdesign7774]

Very Nice video. I like the way you make such videos. Please make videos on Electric vehicle chargers.

[@ARA-HOUSE]

Lk 50 brother 👍👍👍👍

[@HaseebElectronics]

Many many thanks dear sister

[@Dr.QaisarAbbas99]

Nice job dear brother 👍

[@HaseebElectronics]

Many many thanks bhai

[@susantaatha6468]

Excellent information. Thank you sir.

[@HaseebElectronics]

You are welcome

[@muhammadishtiaq24]

Excellent explain thanks for sharing

[@HaseebElectronics]

best regards

[@debbieheart2703]

Fabulous uploaded video like always, your truly a genius when It come on to content creating I really admire the way how you famulate your video and the time you spent creating them, also am always going to be a subscriber to your channel because you motives and encourage Me to push hard in my work, thank you my friend for the inspiration that you give me, keep up the good work and see you again on your next uploaded video 👍

[@HaseebElectronics]

Thank you so much 🤗 special thanks for your valuable encouraging comment it is really a valuable asset for me

[@muhammadwazir3350]

Excellent experiment thank you sir.

[@HaseebElectronics]

You are welcome bhai

[@mshmbo]

Ma shaa Allah Brother and our ostath may Allah reward you in jannat al ferdaws

[@HaseebElectronics]

Jazaak Allah khair dear brother

[@msbbadsha1456]

Amazing video

[@HaseebElectronics]

thanks a lot brother

[@rahulpatelgujratahmedabad3497]

👓👓📢GOOD TICHING AN ALL DITELS IS GOOD👌👌👌👌👌👍👍👍👍👍❤️❤️❤️❤️❤️

[@HaseebElectronics]

thanks a lot bhai

[@muhammadtasleem4728]

Thanks for sharing this video sir.

[@HaseebElectronics]

so nice of you dear sir it is your greatness

[@dananjayagunatunga5375]

Thanks very much sir.

[@AbdulMomenZargar60]

Salaam Janab Bhai Saab

[@HaseebElectronics]

wa alaikum salaam bhai

[@aanishkadailydose]

aslmuailkum Bhai Jan like done k sath hazir

[@HaseebElectronics]

wa alaikum salaam dear sister

[@مصطفىالربيعي-ت8غ]

Hi Haseeb, I would like to ask you about high speed transistors in datasheet they don't show if it was npn or pnp they are just showing NXP, as a beginner can you please let me know what was that mean and tell how to measure it on board to check if it is healthy or not or any one can help as well. Thanks

[@HaseebElectronics]

Kindly let me know the part number So that I can reply clearly

[@مصطفىالربيعي-ت8غ]

@@HaseebElectronics it was A4W with 3 pins. Thanks

[@HaseebElectronics]

@user-wt9xo5ys1m please send its picture to my WhatsApp [phone] Or email [e-mail] Component picture + marking id on PCB (like Q___ or D___ or ___) visible or you can write the component id

[@boybravo689]

Thunbs up done

[@HaseebElectronics]

thanks a lot brother

[@Bogdancev]

Hi, thanks for your videos, they are very informative! Do you maybe know what is the typical windings resistance of transformers that work on 130kHz (driven by similar TNY286DG)? Mine reads less than an Ohm, all 3 winding: primary, bias and secondary. I just don't know what is normal for a such a high frequency transformers, and the transformer is very small, 1cm x 1cm. Regards, Sergii

[@AbdulMomenZargar60]

All The Best

[@HaseebElectronics]

thanks a lot bhai

[@nangyalkhan2211]

❤Masha allah

[@ilanbinkovitch6054]

Hi Haseeb. Thank you for the videos, I like them, very educating. Only one thing now - the microphone , Unlike previous videos, your voice here is muffled, not clear, hard to understand some words. Thanks again !

[@HaseebElectronics]

best regards really i am very sorry for listening that i will try to improve voice and this muffling issue again please accept my apology for facing incontinence you can turn on Translation or Caption for reading wording. it may help

[@kousaroutlook2686]

so nice sty conted

[@HaseebElectronics]

thanks a lot stay blessed

[@anlpereira]

Hi, I always watch your videos and like them a lot. I didn't find in this IC datasheet how to calculate the flyback transformer winding. Can you show us? I know you have a video about flyback transformer calculation, but I think that for this IC it is diferent. It operates a duty cycle more than 0.5. Thank you very much.

[@MostafaMahmoud-ts8ew]

great work sir..pls sir can you explain the block function diagram for expert solar inverter ..you can find it in service manual.. many thanks

[@nayanjagirdar8408]

👌👌👌👍

[@HaseebElectronics]

it is my pleasure

[@reymartmanablug4316]

can you share it in your vlogs on how to use oscilloscope.I'm so much interested in learning on how oscilloscope works and how to use it in troubleshooting electronic parts and components.Thank You and may God bless you.

[@HaseebElectronics]

please check video number 167. moreover i am planning to use Oscilloscope in advanced level troubleshooting very soon

[@reymartmanablug4316]

@@HaseebElectronics thank you.i am always watching your vlogs.regards from the philippines.

[@manualspellcorrect9073]

I hope you can do a similar video on the Infineon ICE series for QR (Quasi-Resonant) flyback SMPS. Specifically the ZC (Zero Crossing) aspects of it. Is your WhatsApp still live?

cái này hay nè

[@HaseebElectronics]

thanks a lot

[@blingmotions6996]

How can I fin schematic diagram for inverter ac preferable gree

[@HaseebElectronics]

it is best to search with outdoor unit model number or PCB model number (it is the best, most of time the same PCB is also used in some other brand)

[@blingmotions6996]

Thk you, but when I search those numbers I'm only seeing new boards not the schematics

[@HaseebElectronics]

please search part number followed by service manual for example "gh23iy567 service manual pdf"

[@gamer447]

Please help me sir how installation IC no.TNY 279?

[@blingmotions6996]

I understand the optocoupler in this circuit but I still dnt understand the communication circuit in inverter a/c with the optocoupler.

[@sagorrana2051]

if I don't connect feedback ,what will be the duty cicyle?

[@Saadafzal0304]

Brother please make an video on mppt based charge controlleea

[@gamer447]

HP zr24w ic no problem TNY 279?

[@shefqetkaralliu6816]

🙏👍

[@HaseebElectronics]

best regards and special thanks

[@mo-ez3ry]

assalamualaikum sir, do u know about high gain converter, quadratic boost converter, it convert 12v to 325v?

[@bruskqadir6208]

Dear Haseeb, after best Salam and regards to you, I have a suggestion for you and you are free to take it or decline it. As it is clear for most electronics enthusiasts, your contents on the channel is one of best if not the best in the field of electronics. your teachings and follow up for the questions have benefited many including myself. You answer the query of your viewers which is a very good thing. Now, as you know the Hindus are waging a fierce war on us Muslims , our dear prophet, and our religion symbols. My suggestion is don't answer the query of the Hindus so that they will not learn form you and make benefit. Because directly and indirectly they use that knowledge for bad purpose against us. Let the Stupid Mody and his terrorist party help them if they know anything good and useful. My best regards again.

[@HaseebElectronics]

وعليكم السلام ورحمة الله وبركاته جزاك اللهُ خيراً really thankful for a valuable message please accept my best regards

[@seeker4430]

How much does it cost?

[@HaseebElectronics]

it is very cheap. if we purchase online it is less than 0.5 USD

[@seeker4430]

@@HaseebElectronics thank you for the quick reply!

[@lucasrocha4329]

I want to be like him.

[@kanchankondhare]

Deep knlowdge teach sirji valubal inform

[@HaseebElectronics]

thanks a lot bhai

[@JunaidKhan-so1fh]

Bosstrip capactior ke oper vadio bnaw our warking

[@andiserang5145]

Mohon terjemahan bahasa Indonesia 🇮🇩 trimakasih 🙏

[@HaseebElectronics]

yakin saya akan menambahkan terjemahan besok

[@SantoshKumar-re8vr]

❤sir may bood TNY264 GN IC SOT UOR

[@pondokponsel936]

SC 44512233 di Indonesia Nyimak datang hadir selalu kawan 👍👍👍👍

[@HaseebElectronics]

thanks a lot dear friend