DIY Lab Bench Power Supply Make Using ATX PSU

[@rcXmartin]

You need a rotary tool! I don't know how I survived so long without one. Really good for cutting all those square cut outs with a small cut-off wheel.

[@broaddatanetwork8864]

It's simplier than the others, because you still use the housing, I'll probably imitate this, TY! Sir!

[@rafaeldejesus1856]

Melhor video de montagem de fonte k já vi

[@SnekSnack]

Good Job. Identical project to "Sorin - DIY Electrical Nerd".

Gran trabajo, yo me hice una con salidas USB de 5v, una de 3,3, otra de 12 y otra regulada de 34v, un saludo.

[@NovatoWTF]

Oye, sabes si tiene desventajas a la hora de diagnosticar ?

@@NovatoWTF Hola, solo date cuenta que es una fuente de voltajes que te haces en casa y solo puedes confiar en que el fabricante de la fuente haya hecho sus mediciones. Por lo consiguiente, no creo que su huso sea profesional, solo para las chapuzas típicas de kuñados. Espero te sirva de ayuda mi respuesta, un saludo.

[@rahulpatelgujratahmedabad3497]

Good tiching karte hai 👌👍👌👌👍👍👍👌👌

[@ronniepirtlejr2606]

You did a great job! But didn't I see a + 12 volt & -12 volt? You could have added a 24-volt option!

[@paulmichaelfreedman8334]

I've had one of those rotary switches lying around for donkey's years, now I know what to do with it.

[@Rainbow__cookie]

I had one but I broke it when trying to solder I melted the plastic and some connectors become loos tryed to melt them back can't put it together :( I was like not wort my time I buy a new one

[@DennisGoncharenko]

Why do you need rotary switch if in any case every plug shows it's own voltage. Just connect bananas into plug you need an here it is, voltage that you wanted.

[@alvaropomares2572]

Buen video amigo, el selector de voltaje que colocaste, no conmuta el voltaje de salida en las diferentes borneras, por lo que puedes estar usando la salida de 12 voltios, y estar marcando 5 en el voltimetro. De todas formas la fuente te quedó excelente, gracias por compartir. Good video friend, the voltage selector that you placed, does not switch the output voltage on the different terminals, so you can be using the 12 volt output, and be dialing 5 on the voltmeter. Anyway the font was excellent for you, thanks for sharing.

[@lucadascenzi2468]

Porque si mira bien lo schema grafico del circuito il potensiometro no es collegato bien,es collegato a la entrada e no a la uscita.....solo al voltmeter....

[@farzaibsheikh9764]

i have never seen such a perfect video and the perfect work that you've done

[@عمارةحامدي-ذ7غ]

your video is understood. the explanation is clear, however I would like to know the small circuit that you have removed from the power supply unit (3mn 10s of the video) and you soldered to the input of the power supply (8mn 39s) what is it called? If not soldering this circuit, can the power supply unit give the same results? And what is its role in everything you have done. Thank you

[@erastoambrosiotrindadejuni4707]

Dear friend In your item description of the parts to be used you describe 6) 10W 10Ohm Ceramic Resistors x2. In the shown vid and 10W 20 Ohm Ceramic Resistors x2, Which right should I use ???

[@LifeGeneralist]

Good repurposing of the SMPS / ATx power supply

[@fernandoescolano7929]

Buena aportación, pero si comentásemos más el video mejor. Gracias. Good contribution, but if we discussed the video better. Thank you

[@albertoreboucas119]

A mais bonita que vi até agora!

[@robertcartier5088]

Very nice choice of color! -- Relatively neutral without being boring. ;-) Two little things I would say. Your vertical power switch is upside down, and you should make it VERY clear what the knob does.

[@marcusk7855]

I through a bunch of these out with my old office computers. Really wish I'd stripped them now.

[@adamsucksatyt]

Well, yesterday I disassembled 2 computers, got 6 fans out of them, and 2 250W power supplies!

[@adamsucksatyt]

The PCs are quite old. I'm typing this through mobile version of Chrome, and it doesn't allow to modify your comment

[@SZ-Gaming]

nice it looks like a 1 to 1 copy from a 2017 video. still a nice copy.

[@LahisTechLT]

shrunkzebra plays Thank you

[@AnghelCatalin06]

Sorin diy...

[@donp.909]

Thank you, well done and easy to understand :) BUT: unfortunately I can't find such a small (and affordable) volt/amp meter that supports enough current for my old ATX power supply: 3,3V*28A, 5V*30A, 12V*15A. I can hardly believe that the amp meter used in the video supports more than 10A. So be careful not to grill it by connecting too much load.

[@LahisTechLT]

Thanks you; you can purchase it from Ebay.

[@williamcrespo3111]

Awesome job, did u publish a parts list? With numbers?

[@berndmuller5386]

very well explained, to build with very simple means, unfortunately I can only give my thumbs up once, you would have earned 10 times.

[@teknisidigital]

mantap om

[@folbol-rp9yx]

Very nice brofesser

[@leopoldodemario999]

Simple, smart, robust and very util. If not good for you, buy a professional Lab bench power supply...

[@brunovinicius810]

Essa fonte é boa e ficou perfeito

[@temelius86]

I'm thinking to make a project like this, but using a regulator for variable voltage and current. I should ask a few questions. Why did you assemble 3 pieces of cables for each 3.3v, 5v and 12v outputs? To provide more current from this terminals or prevent heating up this cables? What's the purpose of this dummy loads? Why did you use a rotary switch? When you set it to 3.3v, 5v and 12v outputs are still active. Is it only useful for reading current of connected port?

[@ETHART-GADAL]

What is the use of the two resistors with the red and black terminals that you connected?

[@davestech6357]

You made it upside down. Hot snot on the dummy load not a good idea. Is the current meter in line of all the outputs? You didn't set the stop on the rotary switch.

[@battuvarinder]

Current meter is used with ground.. ground is common for all. So it will work on all 3.3, 5 , and 12

[@jeffinetlyjeffbi9770]

Somebody get this guy a dremel

[@reji9413]

23444👎👎👎🤙🤙🤙🤙🤙🤙🤙🤙💘💘💔💔

[@BarkatAli-pp9gt]

Par Excellent! Very well Explained! Thank You.

[@amitghosh6966]

Nice power supply. But what's use of the voltmeter when all the voltages are fixed? Is this voltmeter only use to show changed voltage when you're connecting output cable to another terminal?

[@LucasSouza-dk3er]

nice project, im building mine and getting many examples of how to made it. Why did you put the switch that change the volts, if they are static from each binding post. You dont need to swicht it for use the different voltage, right? or something change when you switch?

[@LahisTechLT]

To switch the amp/voltage meter between three voltage levels. Appreciate your support.

Your video is very interesting

[@berndmuller5386]

sehr gut erklärt, mit ganz einfachen Mitteln nachzubauen, ich kann leider nur einmal Daumen hoch geben, Du hättest 10 mal verdient.

[@AEZAEZEL-187]

I have seen many videos of ATX power supplies turned into compact bench power supplies mainly for using with CB radios. Still i think its a hazardous project to turn an ATX power supplies into a bench power supply. But none of the power supplies can get over 12 volts. So to use a cb radio at 12 volts will work but not fully. I rather get myself a real power supply that gives out 13.8V DC for my CRT SS9900 Amateur radio to work correctly. Its a neat project but dangerous. You really should know what you are doing!

[@cookies-pb1eg9vg8v]

What about the short protection ? Is it disabled ?? Otherwise we won't be able to run at high amp

[@bmh4013]

If this was thought in my BE colleges i wouldn't be working in PSU, Finished BE book worm 😂

[@sathyanp.g2000]

Thank you for the quick replay.there is no connection between banana plug and rotary switch .so each plug is used for separate voltage ?can't we get 5v 12v etc from the same plug by adjusting the rotary switch . That is my doubt. Cold u please explain .I couldn't follow that part of the diagram

[@ZeeshanMehboob]

Sathyan P.G same question from me

[@francescovr5681]

Does something change if instead of the 20 ohm resistor I take the 18 one?

[@zdravo4]

You have at least three blown capacitors on the board ;)

[@neodiy]

How do you know lol...you have not even try it yet...

[@johnmacedo4483]

@Neodiy,c0m: You don't have to test them to know if they are blown. If you look at them main board you can see that they're popped. And some blown capacitors can still work. They will just be noisier and won't work at 100%.

[@neodiy]

@@johnmacedo4483 I didn't see any of those in the video

[@طّأّرقِ-ن3ع]

سوىرىشبؤوي 😂انت عامل من نفسك عشان مش

[@zdravo4]

@@طّأّرقِ-ن3ع i understand everything 😂

[@romulopartoza5598]

Brod... it is possible to use only one black binding post since it has already a selector?...

[@pythoneatssquirrel]

I have a psu that worked, connected green to black and it turned on the fan. After cutting the wires, when I connect green to black, it spins the fan for half on sec and then it stops. And idea? The purple 5v has power for an led, but the other wires stop after half second

[@Appendix1985]

HI LahisTech, why you solder the black thin wire from the ampmeter to one black ground wire from the psu? thx for you answer! nice Vid + nice shemata!!!

[@robertcartier5088]

CAUTION: It should be clearly stated that the knob does not change the voltage on any of the outputs... it only changes which voltage rail that is being monitored by the voltmeter portion of the display. If you turn the knob but do not change the wires from one set of posts to the other, you might fry your project by mistake. If you build this project, it is important to remember this warning.

[@LahisTechLT]

Robert Cartier yeah 100% true. thanks.

[@danokode1194]

He should have a volt meter for each rail or may be have the knob switch between the different rails while the display put parallel to the knob so that it changes with the power supplied

[@LahisTechLT]

DAN OKODE only thing you have be careful of , from which rail you gets power according to your application. 3.3v , 5v or 12v...

[@dedskin1]

i expected it im like how did he do that , turns out he didnt hes just making it look like that , i made the real thing its here drive.google.com/drive/u/0/folders/1WiVQ2QsuwcQILfkM251yoagN3w08bVVy

[@acitobydesign]

@@dedskin1 If you have the knob switch the actual voltages to the posts as well, why do u have 2 sets of posts? P.S. Not tryina be judgemental. Genuinely curious.

[@electronic7979]

Very nice

[@LahisTechLT]

Thanks

[@gabrielquarshie94]

Perfect job done

[@proromanmax]

BEAUTIFUL WORK ! SUPER.

[@ttibor]

Hi, I have a question. Why did you use 3 different ground binding posts, since you connected them together with the same ground wires? Only one common ground post wouldn't be enough?

[@LahisTechLT]

yup, but i want it looks better with 3 separate grounds

[@ttibor]

@@LahisTechLT Oh, so i can use only one to save space, right?

[@LahisTechLT]

@@ttibor yeah

[@estebanmartinez9143]

I hace a doubt, it seems that my source atx doesn't have the fuse included, if I wanted to add it, where should I put it? Will be right if I connect it in series with my switch of stand by or where? If anyone can help me I'll be so thankful.

[@neodiy]

The connection of the rotary switch in the diagram have my doubts...how do you just connect to the rotary switch and then direct connect to the output (banana plug) without going through the rotary switch...how is the rotary switch going to function? Or where am i missing something?

[@abbasaliarainabbas4784]

great video thnks

[@luisalberto612]

Muy buen trabajo, muy prolijo y me gustó el color.👍👍👍👍

[@muflo71]

Hi very good tutorial and project! Can I ask you what is the purpose of the 10W 10Ohm Ceramic Resistor?

[@app-o-matix]

muflo71 If I have this correct, some power supplies (older?) require a constant load on the 5V rail for stability of the psu. The resistor(s) provide that. One possible alternative I ‘ve seen suggested for the load is a 5V led, which could be used as a power on indicator on the front panel, I would think.

[@emersonresende8677]

Very good project! congratulations!

[@DrZipZwan]

Check Sorin's!! this is a copy!! Sorin's is even explaining every steps and why this and why that!! kzbin.info/www/bejne/fGTCgJiMn7B7qJI

[@joaogilberto432]

Oi amigo precisava de uma dessa sera que daria pra fazer uma dessa pra mim quanto cobraria. Para mim seria muito bom

[@lancechestermalaluan7732]

What do you call do the board shown at 3:15? I don't have that one in my ATX power supply. Hope you'll notice this query. Thanks

[@ErCanEverything]

👍👍👍🙂🤝

[@antoniocorrero4198]

thank´s for your video and time, ihave some questions if you can tell me: wich is the need of the two resistors of 10w. and the circuit with the toroid and capacitor you welded in the input, and at last why didn´t you used the blue wire with -12v ? thank you very much again, regards.

[@electroumit]

:) Where is current control? You can use internal opamps of TL494 for CC and CV.

[@dantebustos1059]

Hola amigo donde conseguir los elementos y sus precios

[@soumyadatta2201]

Nice presentation......

[@LahisTechLT]

Thank you

[@RobRoy007]

OMG! you are a dam Genius !!! You have layout this video perfectly, thank you- young man!

[@argameplay7891]

Se queda pegada la mano o algo así?

[@e.a297]

Hi, can i connect 12v and 5v together and then use a DC to DC module to get more power from atx?

[@TheTechSultan]

Hi Friend nice video but what is the point of the selector it wont show the real voltage you still need to select the correct voltage you need from the red plugs.

[@ajaxrefrigeracao-diadia]

Muito bom, só falta o áudio com explicações profundas.

[@Mxnuel_2395]

In your project did u install a fuse? in case you the positive and negative tips touch and it causes damage to the machine

[@train4905]

A superb job.well done sir.

[@lcmendesify]

Legal muito bom...👍👍

[@reji9413]

Etdidirofiriirirufidjfirjfiriririfirjrfuiffiriir

[@reji9413]

😀😃😃😃😃😄😃😄😄😄

[@jairoernestomoreno]

Otro mudo que sabe algo de electronica !!!

[@CreemosEnJesucristo]

Excelente ...But how do I discharge the capacitors without removing them from the circuit? God bless you.

[@samsabhi4791]

Use screw driver and short the both ends of capacitor

[@khaledboumediene754]

Thank you.

[@kenanelicanov2327]

I want to watch your first power supply which you show

[@bacardilove1981]

i did all the same but the amps shows 0. also can i forse the psu to give 10amps to work for a peltier?

[@tuando22]

Hi, Could you explain why you need two 10W 10Ohm Ceramic Resistors? Thanks!

[@ronniepirtlejr2606]

I was thinking maybe it would shut itself off without it? But who knows? I would like to know why he didn't add a 24 volt option? He had + 12 volt and -12 volt.

[@dcmarios5421]

The pc power supply need a cargo for give the right voltage i am not 100%

[@yasirali-yt3zm]

I have Question how Much ampere can bear this supply

[@estebanmartinez9143]

I hace a doubt, it seems that my source atx doesn't have the fuse included, if I wanted to add it, where should I put it? Will be right if I connect it in series with my switch of stand by or where? If anyone can help me I'll be so thankful.

[@aryanjangir5410]

Yes you must connect in series with and before your on off switch. As fuses are rated in amps so they will be connected in series.

[@CreemosEnJesucristo]

I have seen some that have negative voltages for what is it? God Bless You

[@estebanmartinez9143]

If you take the outputs +12V and -12V you are going to get +24V 1A aprox. The same happens when you take +12V and -5V you obtain +17V. All combinations can be done. :)

[@camargooliveira5861]

Boa tarde quanto sai o valor dessa fonte atx chou de bola parabéns

[@techytools5668]

can you explain why you use dummy load?

[@Smore45]

Very good video ...except music was TOO LOUD!

[@paulmichaelfreedman8334]

What I am wondering, is if the ATX PSU has a control module to regulate the voltages and if there's a way to splice a potmeter into there to actually regulate the output voltages ...

[@LahisTechLT]

You can add a variable buck converter to any rail of this power supply and then you can control the voltage according to your preferences

[@neodiy]

Now i get what you trying to do with between the meter and the output is independent of one another ...ok ok

[@telstarvision1509]

you have made a very nice job of this psu neat & tidy. i love the paint job,it really suits the unit. well done

[@LahisTechLT]

telstar vision Thank you 👍🏼

[@jesusmaxmelchorjimenez6773]

hi, why did you connect two resistors to the 5 volt output?

[@3DRC-707]

diodes on the bananas bro. polarity protection

[@3DRC-707]

@M. Gengo A single diode is a surprisingly effective way to incorporate reverse-polarity protection into a device's power-supply circuitry. Schottky diodes have lower forward voltage and consequently are generally a better choice than normal diodes

[@mariosergiogroetares9343]

Valeu! Grato! Muito show!

[@marcusvaleriolucena5309]

Boa noite, qual é este potenciometro ?

[@MaturePatriot]

I wish I was as electronic savvy as you.

[@Robson2999rodrigues-RF]

no final do vídeo você testa um carregador de pilhas... você que montou ele também? acabei de me inscrever e não sei se você já mostrou como fazer ele no seu canal... se possível poderia mostrar o esquema? obrigado

[@LahisTechLT]

kzbin.info/www/bejne/gJytf5qre9qDqdE Schematic was included in the video! Thanks

[@ziadfawzi]

Thank you

[@nialmurray1905]

the highest rated binding posts I can find are 16A. ... don't you need one that can handle 30A?

[@OmNamahShivay53]

Is this power supply ok for diy projects or Arduino projects testing...as every nodes are producing more than 20 ams ?

[@DrZipZwan]

yes, I use it for everything!! arduino most projects need 5v, and also for 12v projects!! So YES, for all DIY electro projects it is a must have!!

[@alibackir6150]

ليش قمت بقطع الوايرات الا تعلم انها مجموعها يعطيك التيار الازم يعني لو اخذت حمل يسحب تيار عالي مثلا 15 امبير هل ثلاثة اسلاك تفي بالغرض لازم تربط جميع الوايرات . تحياتي

[@gayudayouhardianto188]

Kenapa ditambah dengan resitor untuk +5vnya

[@KKMaity]

If you are using 40ohm dummy load resistor then 3w would have been fine

[@TheC0ntrast]

Hi! Your work looks like pretty good. Can you answer me, for what we connect 2 power resisters consequnetly?

[@LahisTechLT]

check 10.51 in the video (+5V & GND)

[@blg53]

The power supply is capable of outputting very high currents, up to 30 amps. But by plugging your (10A max) ammeter into the common ground you just unnecessarily limited the whole thing to 10A. That connection also makes your load ground not totally identical to your supply ground, the ammeter's shunt is between them.

[@LahisTechLT]

To me and my usages 10A max is enough. That's why I connected two load resistors to block over current.

[@carlwatson-grant4773]

Using this video I'm converting an ATX power supply to use with my LIPO balance charger, so instead of using the 10amp ammeter I'm using a similar unit rated at 50amp, which is more than enough for my application.

[@cevima]

*EXCELENTE !* 👍👍👍 (From BRAZIL)

[@agustinmarozzi7542]

im the 6666 like! :D incredible video! thanks man (from Argentina!)

[@miguelcardona3400]

Hello Lahis where can I get the diagram & parts list for this very nice compact Power Supply unit which you published on 01/24/2019; I want to make one, I have several ATX PS units, thanks.

[@oleksiyhankevich]

Таке запитання, у мене є 1 блок питания з шим контролером EST7502B вийде зробити лабораторний блок живлення з регулюванням напруги?