{464} ATX power Supply with Active PFC HP 240- Working Explained & Repair / Troubleshooting

in this video i explained ATX power Supply with Active PFC HP DPS-240 - Working Explained & Repair / Troubleshooting . this computer PSU is 110v to 220v auto power supply. active power factor correction circuit is used to maintain 365 vdc even the input voltage are 110 or 220. it will boost the dc rail voltage so that the pwm controller IC will just have to regulate output voltage. How to repair computer ATX switch mode power supply SMPS very easy. this PSU is using uc3845 TL494 LM339 active PFC controller and also i discussed smps basics. after watching this video you can capable to:-
understanding atx power supply basics circuit diagram schematic with complete tutorial in urdu hindi
working of atx smps
if computer power supply does not on, or fan runs and stops, fluctuation, turns on goes off again or fail to start
short circuit, or fuse blows burns again and again
how to repair smps
how to repair computer power supply atx
fuse keeps blowing
how to repair switch mode power supply when short circuit at input
if SMPS is dead or no ouput
if SMPS have fluctuating output or output voltage unregulated
if smps have short circuit in output
how to eliminate short circuit
how to troubleshoot PWM SMPS controller when there is no switching from MOSFET
if SMPS have a whistle sound or excessive noise or excessive heat
how to repair mobile charger
how to repair computer power supply
how to repair laptop charger
how to repair inverter of solar system
ATX power circuit diagram / schematic explained • #168 ATX POWER SUPPLY ...
• #178 ATX POWER SUPPLY ...
71 ATX Power Supply Circuit Description in Urdu / Hindi • #171 ATX Power Supply ...
• Video
how to increase output of SMPS • #150 How to increase o...
short in put of SMPS and fuse burns again and again • {145} Fuse Keeps Blowi...
fluctuations in output of power supply • #144 Fluctuations in o...
smps basics tutorial and testing • Video
feedback in smps • #142 FEEDBACK in Switc...
how to repair troubleshoot smps • Video
How to repair switch mode power supply SMPS practical troubleshooting • How to repair switch m...
SMPS / PWM basics circuit description with practical switch / switching mode power supply • SMPS / PWM basics circ...
SMPS Switching switch Mode Power Supply repair Basics & Troubleshooting • SMPS Switching switch ...
SMPS practical tutorial • SMPS Switching switch ...
• Video
SMPS tutorial and practical troubleshooting and fault finding • SMPS / PWM basics circ...

[@ComputerExpert1]

Good information 👍 Thanks for sharing sir

[@japhetobandajunior1943]

Excellent explanation, no wonder I couldn't get the other videos you made because the ATX had no PFC

[@psnvprasad9654]

Sir apko Alla achakarega...... Now a days good teachers are like very less...... Sir I'm in this field last 10year's today i leant pfc smps by you sir......... 🙏

[@chauhdrykhalid]

Very informative video on smps PFC circuit with Deep explanation. Haseeb Sahab, Jug Jug Geo,❤

[@akdigitalhomemade7828]

Aap ka bahut bada fan.

[@HaseebElectronics]

best regards bhai

[@HarlavanisPanagiotis]

Amazing upload dear friend!!!

[@hiralifestyle]

good sharing ..helpful video

[@mohamedantri9433]

شرح رائع جزاك الله خيرا استاذي الفاضل حسيب.

[@HaseebElectronics]

best regards and special thanks

[@carlosjaycollado8337]

Thank u sir for the detailed explanation..more power to you.

[@HaseebElectronics]

You are most welcome

[@sreekanth369]

Sir, Thanque for Your kind Explanation and Patience baring us.....🙏🙏🙏

[@HaseebElectronics]

It's my pleasure

[@larryphful]

Thank you very much for all the videos that you have made/posted. You are really a good instructor, explaining everything in details. I hope and pray that you keep up the good work. Be safe.

[@HaseebElectronics]

You are very welcome

[@sampaths82]

Thank you sir i understand more about pfc circuit

[@HaseebElectronics]

You are most welcome

[@mehaktravel]

Nice sharing

[@mohamedantri9433]

Rich of information electronics....think you so much sir....جزاك الله خيرا على معلوماته القيمة وجعله في ميزان حسناتكم استاذنا

[@HaseebElectronics]

اللہ یسلمک و یسعدک۔

[@rammohan5435]

Thank you very much sir very useful and nice video sir please hindi. Main bhi video banaye thank you very much sir

[@HaseebElectronics]

ye video mere urdu channel (haseeb electronics urdu) per pehley se upload he. aap "haseeb electronics urdu" per video number 220 dekh lein.

[@gopalraovellanki9826]

Great explanation sir Thank you very much. Good night 🙏

[@HaseebElectronics]

good morning special thanks for your valuable comment

[@rmjnm]

Very good and detailed explanation. Watching this video has widen my understanding of these power supplies even more. So nice of you sir. Thanks.

[@HaseebElectronics]

You are welcome

[@iyyanarv5515]

Sir , your explanation is really good.

[@aayesha6227]

very informative video sir thanks for sharing your valuable information with us ❤❤❤

[@HaseebElectronics]

thanks a lot

[@qaiserqureshi100]

Amazing demonstration Big Like 👍

[@HaseebElectronics]

big thanks and best regards

[@lupojacobo9892]

Exelent explained. Shukriya Maestro

[@HaseebElectronics]

best regards and special thanks

[@nihatkosova8436]

Hi Teacher,you did explanatory programme again. thanks

[@giorgostexnikos6976]

amazing video.thenks professor

[@HaseebElectronics]

You are welcome

[@WithEmanFatima]

MasahAllah good information thanks for sharing

[@HaseebElectronics]

thanks a lot dear sister Allah bless you

[@vijayakumarkumar9190]

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

[@HaseebElectronics]

most welcome and best regards

[@psnvprasad9654]

You are symble of Excellence sir

[@BricoolinoSenyor]

THANK YOU VERY MUCH 👍👍👍

[@HaseebElectronics]

You are welcome!

[@Iamsuccesspro]

Awesome tutorial! Thanks much

[@zenelectronicsMD]

Sir, Very nice explanation

[@HaseebElectronics]

best regards and special thanks dear

[@chanduchauhan5128]

very nice explanation sir thanks

[@HaseebElectronics]

Most welcome

[@mohammadkhalid6886]

Jazakallah khairah ,,,,, 👍

[@HaseebElectronics]

best regards

[@qaziqazi9727]

زبردست

[@HaseebElectronics]

جزاک اللہ خیرا

[@susantaatha6468]

Beautiful explain. Thank you sir.

[@HaseebElectronics]

You are most welcome

[@mohamadmansour2595]

Amazing explanation as usual, thank you

[@HaseebElectronics]

My pleasure! stay blessed

[@japhetobandajunior1943]

Amazing tutorial

[@coloradowilderness3139]

Waiting for long !

[@HaseebElectronics]

it is my pleasure its next episodes will come very soon

[@aneesrazakh]

Sir pls describe us that after bridge rectifier what microfarad of capacitor and what value volt of capacitor how we calculate the farad and voltage of capacitor pls describe sir with your valuable knowledge thank you

[@HaseebElectronics]

please check video number 263 on my this channel

[@aneesrazakh]

@@HaseebElectronicsthank you very much sir

[@meandbabajan76]

Very nice

[@Tofomy]

Thank you sir for your videos

[@msbbadsha1456]

Wonderful video

[@HaseebElectronics]

Many thanks

[@eamonhannon1103]

Good overview

[@rashidm9396]

MashAllah great brother

[@HaseebElectronics]

thanks a lot

[@pu8reLib]

fantastic sir... plz remove its protection to direct turn on.

[@DarlynMabubay-p8p]

Sir good day!! Can u please make a tutorial of ups repair step by step to actual repairing! Thank you i hope you can do this!❤

[@HaseebElectronics]

sure i will do my best to do it

[@Cutycats9]

شرح رائع جزاك الله ❤keep up brother

[@HaseebElectronics]

best regards and special thanks

[@hichamtassi1753]

Salam M Haseeb. How to increase voltage when dealing with op amps as you show in the video. Thanks.

[@eamonhannon1103]

Hi . Can you cover the case where the +5vsb is good and the output turn on but then shut down immediately . Could this be because the supervisor IC monitoring the outputs is shutting down the PSU. This makes it difficult to troubleshoot . In this case can you disable the output monitor circuit to prevent it shutting down the PSU when you connect the green wire to OV so that that you can troubleshoot the problem ? A video covering topic would be very helpful because i think this is a relatively common fault case

[@bundadita7505]

Mantap banget kak semangat

[@ARA-HOUSE]

Lk 33 brother 👏👏👏

[@HaseebElectronics]

Many many thanks

[@ARA-HOUSE]

😍👍

[@iffee100]

Well defined. Thanks

[@HaseebElectronics]

Very welcome

[@zainarabicteaching]

Good job

[@eamonhannon1103]

Hi Mr Haseeb . Your videos are very good . Do you provide repair services for customers locally in your country ? If you do , what type of products do you provide repair services for ? Do you provide other services as well ? I have seen videos for ATX Power Supply and Inverter Welding Machine . Do you provide consultancy services or as well on line repair support on a fee basis ?

[@generalterror2457]

Will active PFC compensate for a sudden voltage drop in the AC mains from ~ 230/220 Volts to ~ 100/110 Volts? Seems like it will, while stressing the inductors a bit more.

[@HaseebElectronics]

every PFC circuit have its limitations. it depends on the design. normally it covers this range

[@c.schandra2134]

Hello sir great video. I was considering why tl494 or sg3524 can't be used to make a pfc ??

[@Flyonwaterslow]

Nice 👍👍👍

[@LousyPainter]

Hey brother. Can you explain the "this will make a resonant circuit" part please because it is producing a DC current. I don't understand. Thanks... Great video as usual!

[@hichamtassi1753]

Salam M Haseeb, nice video ! can you please explain how to recognize each optocoupler and how do they work, what kind of signal they send. Thanks & Salam Aleikum.

[@waelelkholi3406]

Hello, Thank you for your video :) .I have a 1600 watt power supply that is not outputting 5V from pin8 (PGO) of ST9S313 ( which is a PC POWER SUPPLY SUPERVISOR ) . All other voltages of the 24 pin connector are ok. I can't get the IC or equivalent, can I just bridge 5v from anywhere on the board to this pin ( it is pin5 on ( the grey wire ) on the 24 pin connector. Thank you in advance.

[@HaseebElectronics]

yes you can make bypass. i suggest to use LM339 comparator IC to generate PGO, so when 5 volt will available it will provide a true signal. it is more good and much safe for PC safety

[@waelelkholi3406]

@@HaseebElectronics I managed to get WT751002 which is a power supervisory chip equivalent to ST9S313, but whhen I measured the IC input voltages there where no PGI , and all other voltages to the chip where ok , i guess that means that the problem is not with the chip. Right? what supplies the PGI to the chip? do you have schematics or any hint please? I work with GPUs this is my first time to work with PSU :) Or could it be a bad chip shorting the PGI input! your help would be appreciated.

[@AnandKumar-ym9yw]

Thanx :-)

[@HaseebElectronics]

You're welcome!

[@boybravo689]

Watching now sir can you give me a favor my friend gave me a turbo broiler when i open the wiring of the parts inside are already disconnected the model is imarflex can you give me a driagram of this unit sir im only a beginner to diy tnx sir more power to your channel from the philippine

[@eamonhannon1103]

Do you have schematic for Chicony Model D11- -300P1A ATX power supply ?

[@joelbaguma8551]

Hi sir I have my Atx200pa 200w, aah I got a problem the fan spins for few seconds and stops. What could be the problem

[@abdul-q-khan]

Sir don't you have any DC to DC boost converter to make a video of it explaining how it works? I have downloaded a circuit diagram and want to try making it. But from looking at the components used and the circuit I can't tell whether it will work or not.

[@shaad2841]

I have 700 watt PSU. 5 volt is OK. When shorting green wire with ground the psu start for second then turn off. All thr voltage except 5 volt down to zero. What could be the problem. Optocoupler faulty?

[@akdigitalhomemade7828]

Hello sir 🙏🙏. Kya pahchane... Amresh Kumar.

[@HaseebElectronics]

Love you bhai. best wishes

[@cyberghot6902]

i have atx power suppyl to fix too

[@HaseebElectronics]

wish you best of luck and success try at your end if you feel any difficulty let me know please

[@yatinpatel322]

Sir what is a need of PFC

[@muhamadzen1068]

Hi Bro, please share the schematic in PDF Thank you

[@AsifAhmed-so5hl]

PFC circuit ka Matlab Kya hai sir please help me sir

[@HaseebElectronics]

power factor correction