Nice 👍👏👋

@HaseebElectronics

Жыл бұрын

best regards and special thanks

I love that you cover a topic then after a while you cover it again, but slightly different application. Repetition is the best way to learn. Thank you for covering these kinds of circuits often. Have a great weekend everyone!

@HaseebElectronics

Жыл бұрын

best regards and special thanks for your encouraging comment

Excellent testing methods apply. Thank you sir.

@HaseebElectronics

Жыл бұрын

You are welcome

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

@HaseebElectronics

Жыл бұрын

Most welcome

Amazing video dear friend, have a blessed Friday and weekend 😊

@HaseebElectronics

Жыл бұрын

thanks a lot dear friend have a happy weekend

Masha Allah Excellent useful tutorial like always Big Like from London 🇬🇧 ✨️

Very helpful as all of your videos. Thank you.

@HaseebElectronics

Жыл бұрын

You're very welcome!

Excellent thanks for sharing this informative video

@HaseebElectronics

Жыл бұрын

best regards and special thanks

I liked this video! Thank you for your efforts in the study of the microcircuit and the principle of its operation !!! Peace and goodness to you!

@HaseebElectronics

Жыл бұрын

special thanks for your encouraging words best regards

Спасибо, отличный урок!!

@HaseebElectronics

11 ай бұрын

доброе утро. спасибо за ваши ценные слова

MR. Haseeb, Great thanks to your wonderful explanation .Let me tell you my experience with this ic. i was repairing a controller which this ic was its power input main component. i was skipping this power stage because i didn't understand how this ic works, so i applied externally the needed DC voltage that will be generated by this ic circuit. then when it came another time i had two controllers of the same type, i tried a different thing which is that i changed the control pin capacitors and ,thanks God , it worked. Now i understand how and why my action made difference. so, i'm grateful for you sir Also,it will be wonderful to organize the videos where you explain those power ics on your channel gathering them in a playlist with special title .thanks again sir

Great video my friend

@HaseebElectronics

Жыл бұрын

best regards and special thanks

Thanks for sharing wonderful knowledge

@HaseebElectronics

10 ай бұрын

it is my pleasure

Thank you for the nice tutorial.

@HaseebElectronics

Жыл бұрын

You are welcome!

Very good Test! Thanks !

@HaseebElectronics

10 ай бұрын

best regards

Very informative....thanks sir ji....

@HaseebElectronics

Жыл бұрын

best regards

Great content... As usual! Thanks.

@HaseebElectronics

Жыл бұрын

best regards and special thanks

hello Janab Bhai Sahib Subha Ka Salaam

@HaseebElectronics

Жыл бұрын

wa alaikum salaam bhai Ji

Thanks, a great lesson!

@HaseebElectronics

Жыл бұрын

My pleasure!

ကျေဇူတင်ပါတယ်👍

@HaseebElectronics

Жыл бұрын

ကြိုဆိုပါတယ် ချစ်တို့ရေ

안녕!!서울 코리아에서 인사드려여..좋은정보 많이 배워갑니다.

Thanks for all

@HaseebElectronics

Жыл бұрын

best regards and special thanks

top261en & top262en They are unique👍

best so lovely video new best 👍👍👍🎁🔔🔔🎄🎄

@HaseebElectronics

Жыл бұрын

Many many thanks

Good

Sir kisi microprocessor ic (led tv motherboard ki) par hme hit sink lgana he to kese lagye? Use kese IC par chipkaye uspar ek video bna dijiye . Please 🙏

V. good thanks

@HaseebElectronics

Жыл бұрын

best regards

Grazie maestro 🙏❤️👍

@HaseebElectronics

Жыл бұрын

it is my pleasure

Great.

@HaseebElectronics

Жыл бұрын

thanks a lot

Asslamukom I'm indiya

@HaseebElectronics

Жыл бұрын

وعليكم السلام ورحمة الله وبركاته

Good job 👍🏻 ❤❤❤❤

@HaseebElectronics

Жыл бұрын

best regards and special thanks

Thanks sir........

@HaseebElectronics

Жыл бұрын

it is my pleasure

👌👌👌👍

@HaseebElectronics

Жыл бұрын

best regards

Excellent bro

@HaseebElectronics

Жыл бұрын

best regards and special thanks

💙💦Wow Wow Wow 💞💞💗🌹💙 💞♥So beAuTiFul shAriNg❤💞🖤 💗🌹wAtch FullY aNd eNjoyed🌺💙💦 🖤❤sTaY coNNectEd pLeAse🌹🌹🌹

@HaseebElectronics

Жыл бұрын

thanks for watching

Assalaam alaikum sir charger ki ic demage hogaee hai ic ka number bhi demage hai complete. Ab kesay pata kry K konsi ic lagy gi smps Mobile charger me.?

How does the IC regulate the output voltage ? Does it it change the duty cycle based in the control voltage ?

@HaseebElectronics

Жыл бұрын

exactly as it offline pwm switch so it adjusts its duty cycle based on the control voltage value

Thanks sir I want to that three leg ic and eight pin ic both work in the same manner? Ie:as switching ic ? Then do we need to use pwm ic or not? Then what about power op temp of ic and heat sinc sir? Will it resit temp at above 300 v 5amp and above , pls let me know regarding small chip.

@HaseebElectronics

Жыл бұрын

best regards 1. both 3 pin and 8 pin (DIP & SMD) work in the same way in 8 pin packages, pin 1,2 3, 6,7 & 8 are grounded 5 is drain pin and 4 is control pin while in 3 pin, pin 1 is control, 2 is source and 3 is drain 2. these ICs control the PWM based on the control voltage (considered as feedback signal) 3 pin IC is installed on heatsink 4. both ics have auto shutdown on over temperature

Morning sir I have a few gree outdoor main boards they have over 300v an the switching ic but there're not switching, vcc pin voltage is fluctuating....plz give some advice

Hello, thank-you for all your time and effort teaching us, would a faulty opto coupler cause the VCC capacitor to heat up and explode, its the capacitor connected to the TOP221P. It only does this if I add loads?

@HaseebElectronics

Жыл бұрын

normally an optocoupler is working as a series switch. which couples ground as feedback to PWM IC. and in some cases it switches vcc voltage from vcc winding to the PWM ic vcc pin. might be there some other error which is causing to explode the capacitor. there is one possibility that the vcc capacitor is low voltage, otherwise 50v range capacitor is used as vcc capacitor

@davidmonk7773

Жыл бұрын

@Haseeb Electronics thanks for your reply, I'm a bit stuck with this. The capacitor is 4.7uf at 450v, the diode supplying this capacitor will go short too sometimes too. I'll keep investigating, I have schematics. Many thanks

@HaseebElectronics

Жыл бұрын

if it is 450V that means it is bulk capacitor. connected in output of bridge rectifier . please check bridge rectifier. if bridge rectifier is damaged, it causes to provide ac voltage to dc capacitor and and dc capacitor explodes

@davidmonk7773

Жыл бұрын

@Haseeb Electronics I will check you suggestios, the Bridge rectifier is charging the 4 large capacitors at 323 volts dc, the power supply runs fine until I plug in the loads (2 Amplifier modules and a mixer section) it a Behringer PMX5000. the smps is a SPS600, I can leave it running without load for hours with no issue, I can not isolate the issue. Many thanks

@davidmonk7773

Жыл бұрын

The 4.7uf 450v capacitor is connected to pin 1 of a small tranformer, this tranformer winding pin 3 then goes to a TOP221P Drain pin,

Assalamualaikum sir atmega328 ic me 3phase drivers install karna hey mujhe konsa drivers perfect hey 3phase inverter ke liye thoda bata sakte kya sir plz

Sir top inn2904k explain sir

hello, is there a schematic about top262en, i can't find the faulty values ​​of the smd capacitor

top258 belongs to same family or different

@HaseebElectronics

Жыл бұрын

no top252-258 is different than this group as that ic have different pinout. but its working is approximately similar

Sir which DSO is good for repair

@HaseebElectronics

Жыл бұрын

any DSO having 100 MHz, dual channel, 1GSa/Sec with comparable affordable price will enough for a routine commercial usage

Hello, what about OB5282cp smps? It has VDD 11.2V but its not giving output for mosfet :-(

@HaseebElectronics

Жыл бұрын

please check components at pin number 1 check current sense resistor check mosfet optocoupler if everything is good. then the IC may be suspected

@zydeto99

Жыл бұрын

@@HaseebElectronics pin 1 at this circuit is not even used its circuit is open by the factory. I though, that if smps gets vdd voltage it should be runing even mosfet or other component is bad. IC is not giving any pulse to the mosfet, CS resistor okay but 0V measued on live circut, also 0V FB pin 0V optocoupler both sides (makes sense if mos not pulsing) or am I wrong? HV pin gets 123V but its rated for 500V so this should be okay. Thank you for your time!

Can u please explain led driver circuit ic 9762d or rt8497 because there is no feed back no transformer only single coil inductor I can't understand circuit output

I posted a video, can you take a look at the smd capacitor values?

Hello sir can you pls help me for find this smd code what is that{ (s478ku)(6 pin)} i founded this in tv Android box.

@HaseebElectronics

Жыл бұрын

welcome dear i think it is not S478KU it is S47B its equivalent part number is R1511S047B it is 4.7V regulator please check its datasheet. might be it is the same www.mouser.com/datasheet/2/792/r1511-ec-1099479.pdf if it is helpful, please let me know

@mehtabalam9320

Жыл бұрын

@@HaseebElectronics okay i check this again and thank you so much for this information and I appreciate your help help

@HaseebElectronics

Жыл бұрын

most welcome