{636} Convert ATX PSU Into Variable Power Supply, Increase ATX Output Voltage

Convert ATX PSU Into Variable Power Supply, Increase ATX Output Voltage. Make Variable Power Supply by Increasing Computer ATX Power Supply Output Voltage. in this video i demonstrated how to make adjustable / variable power supply from computer atx power supply / PSU to make benchtop / workbench power supply OR you can use as 12V car battery charger OR for dc motor based room cooler / desert room cooler or many other projects and applications. Computer ATX Power Supply can be hacked to convert it in very simple steps.
#convert #atx #psu
first disable the overvoltage, undervoltage, overcurrent, short circuit protection by disabling atx supervisor IC or LM339 or any comparator or operation amplifier IC working as ATX housekeeping function.
ATX Bench Power Supply - Convert a Computer Power Supply
Converting Computer ATX Power Supply to Lab Bench Power Supply
How To Disable Voltage & Current Protection from ATX PSU.
i demonstrated TL494 / KA7500 based atx psu, it is using LM339 comparator ic. this works as ATX supervisor ic for housekeeping and monitoring all the atx function and it turns off TL494 /KA7500 in any abnormal case (over voltage, under voltage, short circuit, over current ) it will pull up pin 4 of the TL494/KA7500 that is dead-time control pin when this pin is pulled up above 2 volt, it shutdown the ATX and disables the SMPS controller option
it prevent the atx operation by auto shutdown from under voltage, overvoltage and overcurrent conditions. so you can modify/ Disable short circuit and overload Computer ATX Power Supply into car battery charger or lab power supply for your electronics workbench or you can make it variable dc power supply. How To Disable Voltage & Current Protection from ATX PSU / computer power supply
atx power supply variable voltage,
modify computer / server / atx power into adjustable / variable bench supply to use as bench power supply, car battery charger
atx power supply conversion
variable power supply diy,
haseeb electronics
atx power supply repair,
atx power supply conversion,
How To Disable Voltage & Current Protection from ATX PSU / computer power supply
server / pc/ computer power supply / atx psu hack
How to Modify / Disable short circuit and overload protection in ATX power supply protection in ATX power supply modify atx power supply variable voltage

[@vicentematricardi3596]

Excelente como siempre tu forma de enseñar , se trata de un gran maestro de la electrónica lo que haces , Muchas Gracias por este y todos tus trabajos anteriores !!!! 👍👍👍👍👍👍👍👍

[@HaseebElectronics]

Hello I am grateful for the beautiful and encouraging message. it is a pleasure that my efforts are useful for my viewers. please accept a special thanks for your comment. stay blessed

[@vicentematricardi3596]

@@HaseebElectronics Mis Bendiciones para ti , eres un ser merecedor de agradecimientos porque lo que haces es digno de una persona de un gran valor Humano !!!!

[@benesbertv5248]

@@HaseebElectronics have a great day sir. i am your follower here in the philippines. i have a question regarding this computer power supply because we can buy a cheap price of this a secondhand. i plan to make this ATX to supply my booster amplier with an input voltage of 45v dc, can i increase the voltage for up to 45v dc? how about the current because my atx supply indicates 25ampere 12v+ it means if i increase the voltage to 45v the ampere is the same 25ampere or it will decrease to 5ampere something. but how can i get 45v dc of this power supply. i hope you can read my message. thanks.

[@AurelioMoreira-y2s]

Muito bom

[@amarandos2]

Κύριε Haseeb τα θερμά μου συγχαρητήρια, είστε ένας υπέροχος δάσκαλος στα ηλεκτρονικά, και μοιράζετε απλόχερα τις γνώσεις σας. Σας ευχαριστώ πολύ από Ελλάδα.

[@joelpadillaong]

Thank you so much sir HASEEB. Truly a non-low knowledge of your ingenuity. More power and God bless your household.

[@HaseebElectronics]

You are most welcome

[@hilariohernandezandaverde3077]

excelente profesor muchas gracias por su amable disposición de enseñar y compartir sus conocimientos, Dios lo bendiga junto con su familia

[@LeobieLang]

no clickbait title like xV to xxV all usable information thanks man.

[@HaseebElectronics]

best regards i try my best to share my experience and limited knowledge which i have. i hate misleading clickbait tricks

[@hellalchtourou9993]

Bravo excellent travail et surtout très bonne pédagogie que j’espère profitera aux jeunes amateurs d'électronique.

[@HaseebElectronics]

cordialement et merci pour votre beau commentaire reste béni

[@applepie777ful]

Thank you for your video sir, I have only little knowledge in electronics.... But I'm very interested to try your tutorial... I'm planning to use my cpu power supply to supply my car amplifier which is 12 volts 3600 watts... I will use your video as my guide... Thank you very much sir, I hope many people will learn and to have a very good knowledge because of your blog... Many thanks sir... Keepsafe... GODBLESS

[@HaseebElectronics]

You are most welcome if you are using computer power supply, most of time, maximum output can be taken from computer power supply that is 400-700 watts. while 12 volt section can provide maximum 200 watts in an excellent power supply. that will not enough to run your amplifier. moreover, you need to remove protections and then it is doable wishing you best of luck and success

[@mansirrabiu7412]

Haseeb the great engineer 👍 I remain loyal to this channel 💚♥️💜❤️💕

[@HaseebElectronics]

thanks a lot dear brother it is my pleasure that you love my efforts

[@learnwithjohnny4641]

Sir mene aapke sare vidio dekhe hai you tube me aapka chanal best hai sikhane ke liye bagvan apki sehat hamesa achi rakhe ye prathana karta hu👍👍👍👍

[@HarlavanisPanagiotis]

Wonderful video dear friend, have a happy Sunday!

[@HaseebElectronics]

thanks a lot dear friend

[@dibyendudas9686]

you are one of the best electronic content creator of KZbin but still underrated.love your video . knowledge has no barrier so, love from India.🇮🇳

[@HaseebElectronics]

best regards no brother, my channel is not underrated, i am satisfied because i am not working for views, earning, or subscribers that's why i never force for like share etc. i just share my experience, and reply the answers for my viewers so it may help someone

[@dibyendudas9686]

@@HaseebElectronics you are so humble . May God bless you sir. sir how can I disable over current protection in CG 8010 IC ? I made my atx variable but when current is about 3 amp at any voltage(e.g. 14v, 12v or 22v the smps stops . the smps is frontech 450 watt. i removed over and voltage protection by adding a voltage divider circuit by connecting to 5v SB . but still this problem happens. help

[@HaseebElectronics]

@@dibyendudas9686 best regards I will explain the current controlling technique in the same TL494 based atx power supply and will see the possibility for 8010 as well

[@techy1661]

@@HaseebElectronics I can understand how much time and efforts are needed to create a technical video, which are serving their purposes very well. I heartily respect your patience, efforts, and time, what you spend in creating these valuable informative videos.

[@ssmm3630]

always pray for you because you share your experience honestly

[@HaseebElectronics]

bets regards and special thanks

[@shefqetkaralliu6816]

Ottimo maestro, carissima spiegazione. Grazie mille 🙏👍

[@HaseebElectronics]

grazie mille caro fratello

[@W1RMD]

Thank you for this VERY valuable information. Adjustable current limiting is also an important feature, especially when working with sensitive circuits. So many applications for this circuit!

[@HaseebElectronics]

it is my pleasure sure we will integrate current limiting feature

[@skysurfhf]

Thanks for sharing your knowledge... Greetings from Portugal 🇵🇹 🌟

[@HaseebElectronics]

thanks a lot dear friend best regards

[@abdulwahid8579]

Good job with all the best information and knowledge able video Sir you are great

[@HaseebElectronics]

it is my pleasure

[@MusaKazim]

You have given very good information, thank you very much Along with this you said that soon you will tell how to control the current of this power supply, so please make a video in this regard as well because I am waiting for your video very much. The company's variable power supply is very expensive, so if you tell us how to control the current, it will be easy for everyone and save a lot of money. Jazak Allah

[@jiouse5881]

Excellent job. Learnt lot of things from your lectures. This the reason why I subscribed your channel and following you on KZbin.

[@HaseebElectronics]

best regards and special thanks

[@MarkPrince1317]

That's so helpful thank you brother for always the best and easy understanding tutorials Best regards from Philippines 🇵🇭

[@HaseebElectronics]

thanks a lot bhai

[@gerandpontrac2760]

thanks Mr hasseeb,very good explanation.

[@HaseebElectronics]

You are most welcome

[@vlogswithraj6491]

nice sharing and good information 👍🤠

[@HaseebElectronics]

best regards

[@rahulpatelgujratahmedabad3497]

GOOD TICHING KARTE HO AP THANKS 👍👌👍👌👍

[@HaseebElectronics]

thanks a lot dear

[@BJcanal270]

Shukriya Maestro

[@GREAT-ATA]

Thank you sir for being such a good source of inspiration to us. We so much value your depth of knowledge and experience in this field. I did modified my ATX unit and the output varied properly I'm yet to add a suitable load though. But I also want to point to a problem I encountered and what I did as a solution. Problem:>>>> After using this trick I noticed that power resistors at the output became very hot. Solution:>>>> I removed them know they were working as a dummy load and for current measurement purposely. I'll replace it later though with a suitable one. But i'm posting this because I know some people will encounter such. And I also want to ask if you as well encountered this same problem? ....... Hope to get your response or anyone's response.

[@thomasyimam5336]

thanks man, was just to make a miracle by just altering values of feed back resisters to the tl431. now i see i need to do something to the pwm ic's configuration.

[@oznewton867]

Fantastic video. This will come in handy on a few projects I am working on. Very informative. Love your videos.

[@HaseebElectronics]

it is my pleasure best regards

[@vijayakumarkumar9190]

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

[@HaseebElectronics]

Most welcome

[@jalalihammad3494]

Great personality Sir Haseeb sab🌹🌹🌹🌹🌹🌹🌹🌹💋💋💋💋💋

[@muhammadishtiaq24]

Excellent explain thanks for sharing this informative video

[@HaseebElectronics]

thanks a lot

[@حسينالحداد-ث3ت]

جزاك الله خيرا وزادك الله علما

[@Edmorbus]

Very good Thanks for sharing

[@HaseebElectronics]

best regards

[@rmjnm]

Very helpful.

[@HaseebElectronics]

thanks a lot

[@penoye-techvlog6961]

Nag iimprove ako sa mga vid nyo. Salamat

[@HaseebElectronics]

karangalan ko maraming salamat sa iyong komento at mga pagbati

[@mannmachine2937]

Very much useful. Thanks you very much.

[@HaseebElectronics]

You are welcome!

[@gabrielquarshie94]

Thank you you so much for reviling this to us this secret. My question is : Will the power supply maintain it"s normal current after the modification ???

[@fatimaKitchen12]

Walkum aslam mashaAllah nice vedio bhai

[@HaseebElectronics]

thanks a lot dear sister

[@abdulwahid8579]

Good job with all the best information and knowledge 😃

[@hichamtassi1753]

Very nice video !! finally what i wanted to see : a no drop voltage under load from an ATX. I have M Haseeb 2 questions before i start this project : 1- What happens if by mistake i short the output ? are there any other protections ? or should i put a fuse ? 2- Is the same principle applies to other designs (mostly the ones using UC3842/3843) ? Thank you & Salam Aleikum.

[@DachaLife]

superb teacher thank you

[@HaseebElectronics]

You are welcome

[@botelite4817]

Good Job..

[@HaseebElectronics]

Thank you so much 😀

[@mack6024]

Mil Gracias y Bendiciones para usted

[@HaseebElectronics]

Saludos y agradecimiento especial querido hermano

[@susantaatha6468]

Beautiful information.

[@HaseebElectronics]

thanks a lot brother

[@techy1661]

Superb n nice upload

[@HaseebElectronics]

Thank you so much

[@mehdi7136]

thanks for this great and very useful video

[@HaseebElectronics]

You are welcome

[@nasirmehmood3585]

Thanks جزاک اللہ خیر

[@HaseebElectronics]

thanks a lot dear brother

[@sreekanth369]

Very Nice Video Sir....

[@HaseebElectronics]

Thanks and welcome

[@kanartech]

So educative, the previous voltage has amp (5v 2A) how many amp do you have in your custom volt?

[@rubentaglienti5528]

Excelente video, es muy didáctico.

[@Mr140849]

Excellent modification and what how cooling fan gets 12 volt supply?

[@Versatiledani]

Good work Allah bless you

[@HaseebElectronics]

thanks a lot

[@electronicaaguilars.]

Excelente amigo gracias por compartir tus conocimientos felicidades

[@aksdiyprojects1999]

It's great pleasure to watch your tutorial videos and I enjoy it lot..especially about ATX mods.. I ve a ATX with sh 8110 ic , could you pls guide me how to modify it for higher voltages and higher amperage? Thanks in advance

[@mohammadkhalid6886]

Jazakallah khairah bhai ,,,,,

[@HaseebElectronics]

best regards

[@abdulwahid8579]

Very helpful and knowledge able video 🙂

[@AbdulMomenZargar60]

Salaam Bhai Saab

[@HaseebElectronics]

Wa alaikum salaam bhai Ji

[@esrinibase]

very good video sir. my question , 1. what will be the max ampere of this 12 volt section ? 2. can we make short circuit protection for this device ? 3. when more than 24 volt variable supply is require then what to do ?

[@mr.sanjeev369]

Good video sir❤

[@HaseebElectronics]

thanks a lot dear brother

[@Studioku971]

Hello mr, vidio yang bagus, saya suka

[@thevabhas7225]

Very good information.. thanks sir I am just joined..

[@HaseebElectronics]

Thanks and welcome

[@Mr140849]

When +12v is supplied to IC Pin no.1 via 10k potentiometer, the output voltage would be increased and this would increase the feed back voltage at Pin No.1 too.

[@redartps]

Great job bro keep up. Mashallah

[@Mr140849]

This modification is good, but in case of variable supply from 10v to 22v, how we provide 12v stable supply for cooling fan?

[@msbbadsha1456]

Amazing video

[@HaseebElectronics]

thanks brother

[@tomislavplanincic2544]

thank you wery much I did it

[@FetihFatih-nr6im]

Ve aleykümselam.That's great!

[@HaseebElectronics]

best regards

[@ARA-HOUSE]

Lk 84 brother 👍👍❤❤

[@HaseebElectronics]

thanks a lot dear sister

[@ARA-HOUSE]

Pleasure 🙂

[@taksi.ran2019]

بسیار عالی دمتون گرم

[@Yorumcu63]

Great Video.Could you add current limiting feature too ? Meanwhile I am waiting a video about SMPS variable voltage and current limiting power supply design too.

[@HaseebElectronics]

sure in my next plan, to add current limiting feature in the same modification

[@aanish2.094]

Wailukum aslaam Bhai

[@HaseebElectronics]

thanks a lot dear sister

[@Brison1949]

Thank you Haseeb, your videos are so informative, just a question is there a way to increase the amperage for laptop fault finding ?

[@HaseebElectronics]

best regards we cannot increase amperes, because the transformer is limited at a rated current, if we will try to draw more current by hacking the protection, it will cause to overheat the transformer, MOSFETs and it will lead to destroy it rapidly

[@Exciton-Quasipart]

​@@HaseebElectronics Hi Haseeb, but how about rewinding second side of transformer to replace ​unused 5V and 3.3V windings with extra copper for increase output current?

[@CliveTrezona]

Thanks Haseeb. I am looking forward to your video on op amps. I really battle to understand them.

[@HaseebElectronics]

yes brother it will come soon

[@olgunguldur2570]

After removing one leg of the resistors on the +3.3v and +5v output lines from the PCB board, what were the voltage values of these two lines? You didn't show this in your video.

[@MrChrisRP]

0 for each. Taking those resistors out of circuit effectively opened the circuit for them.

[@giorgostexnikos6976]

excellent

[@HaseebElectronics]

Many many thanks

[@ravindrajayathilake5544]

Thanks i also modified legend 250w atx pcu.under your opinion.but yellow line,Min v is 8v, max v. Is. Ok.and other o/p olso there.but velu is chang.can u help me.

[@hkbtharanga1]

Thanks sir

[@HaseebElectronics]

best regards and special thanks

[@aeromojito]

I am using the 12V output only but at a fixed voltage of 13.8V for CB radio and mobile electronics use. Can you please explain in a future video how to keep short circuit and overvoltage protection? It doesn't need to be extremely sensitive. It just needs to protect against catastrophic failure. Thank You.

[@aeromojito]

My donor suppliies are nearly identical to the one in your videos. I was able to increase the voltage but the protection circuit trips very easily. It should be easy to make it less sensitive to quick voltage and current changes but I can't quite figure it out. Adding a 47k resistor between lm339 pin 5 and ground seems to help. Any other ideas?

[@yahyazengin7836]

Selam videolarınızı zevkle izliyorum birde Türkçe alt Yazı olunca çok iyi oluyor bu devre 0-24 volt yapılamaz mı hayırlı aksamlar

[@kwalide]

JazakAllah

[@maurojosequintero331]

muy buen video gracias por compartir, pero como haría con una fuente de ic sd6109 para colocarle un potenciómetro y poder variar la corriente ya que por este medio es muy difícil encontrar información para fuentes con ese tipo de ic

[@bunyaminsahin9627]

Teşekkürler.

[@muhammadwazir3350]

Yes helpfully

[@HaseebElectronics]

thanks a lot dear brother

[@rahulkoley6161]

Plz help me... I already completed these modifications... But the voltage is randomly fluctuating...?? What is the problem...??

[@ivanilarionov1893]

Hi, thank you very much for the helpful information. I need a regulation between 2V and 11-12V. I suppose that 12 volts output cannot go so low, but is it possible to use the 5 volts output for such a range? If not, what is the max range that it can provide? Thanks!

[@milovanmitrovic-miks6174]

Thanks...

[@HaseebElectronics]

You're welcome!

[@lalkahandawa8923]

Please do a video about your soldering gun.

[@HaseebElectronics]

kzbin.info/www/bejne/ppulqWp8Yq1jiac

[@stevemiller6766]

I’ve been looking for something like this for sometime, thank you. I have some HP server power supplies nice compact units with 65 amp on the 12 volt bus. Would like to do this to them. Can you suggest a source for a schematic for them?

[@collinsmugemi8538]

Nice video...just to ask will other pins remain at 5v and 3?

[@mithilesh21233]

I like it I made one based on lm399 and ka7500b8

[@reubenbalie9576]

Hi, i have an ATX PSU with only 1 IC 'SG6105D' BAZ33780351E . Can i do a a similar modification to use it as a battery charger.

[@itmeetings]

End line caps will exploded case end line 12v caps is 16 volt 1000uf

[@Chems7308]

I have the same board and success to disable the short circuit protection,but when I am connecting the Pot ,the output voltage is not stable anymore, please help sir

[@kintushaami4404]

Can this trick work on every ATX Power supply? Thanks

[@HaseebElectronics]

this trick makes it variable but the power supply looses the current regulation. so i am trying to add some external linear regulator to provide variable voltage and variable current

[@Harry001by7]

I did same but not getting exactly, perfect from 9-24 v, but fluctuating below 9 v. Any help ?. Thanks in advance.

[@nava-kit]

can you give soldering iron details please

[@HaseebElectronics]

i have Weller WR3M rework station

[@electronix.1]

What should we do if we want to have a 12V power supply voltage from zero to 30 volts?

[@HaseebElectronics]

by controlling the duty cycle of any smps controller it is impossible you can use a linear voltage regulator and current regulator in the output

[@techrama9642]

Whats the reason of buzzing (transformer noise)??

[@prangki]

It that the output resistor not burn..??

[@kintushaami4404]

i have a power supply ATX 650watts but it does not have those 2 ICS

[@hichamtassi1753]

Salam M Haseeb, if by mistake we short the output voltage why will happen ? thank you & Salam aleikum.

[@HaseebElectronics]

wa alaikum salaam dear brother. i am sorry for delay in current control modification i will discuss in detail with practical it will ready in few days

[@hichamtassi1753]

@@HaseebElectronics Thank you dear brother.

[@Bulgar1us]

Would be awesome if you can make regulation of volts and amps separate but start with 0.. For example 0-20v or 0-25v.