Turn Computer ATX Power Supply into adjustable 1V To 30V
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- Опубліковано 11 жов 2024
- A switched-mode power supply ATX (SMPS) is an electronic circuit that converts power using switching devices that are turned on and off at high frequencies, and storage components such as inductors or capacitors to supply power. uses microcontroller / Ic to oscillate - most common IC is the TL494 or KA7500 - That are suitable for modifications it has many pins but the pin no 1 is used as feedback by voltage devider. So we will use pin 1 and a potentiometer ( 5K to 25K ) To adjust the voltage . if you think wow i can adjust it from 0v to 30v . thats not right . you need to use 3v rail 5v rail and 12v each rail gives different voltage like 12v rail will give 8v to 15v but if you use 12v+ and 12v - you will get 9v to 30v
warning -[
before powering the atx please use a 100 watt lamp ]
tags;
#ATX psu #smps #adjustable #variable #powersupply #voltage #current #labPowerSupply
14V 10Amps Battery Charger From ATX
ua-cam.com/video/kRlmotTEJJw/v-deo.html
Warning ⚠️
please replace 12v 3v 5v all capacitor with higher rating
36v 1000uf should work .
PART -2 WATCH HERE 👇👇👇
ua-cam.com/video/-6BikCgaH8k/v-deo.html
Electric shock Hazard ❗
Be careful while doing this if there any malfunction at the time of modifying . The output voltage can go very high 60V to 80V and It may explode
⚠️ Do at Your own risk
♥️
На русский язык
@@ЕрмекКуспеков
POCCNR ♥️
so .. if we need to replace it for 36V . 🤔 How did u do video without replaced it ? 😒
Its not safe to use without replacement
Putting your fingers behind the board on the HV side is a quick way to win a Darwin award.
Yeas . 😅
FOR ANYONE CURIOUS: This will most likely *not* work on basically _any_ brand name PSU made in the last 12 years, as they will most likely have voltage monitoring to prevent Under and Over Voltage (among other protections) -- this means that is the voltage for +12V is increased to say, anything above 13V, the unit automatically turns off. In those cases, you'd need to also modify that circuit so that the voltage it's monitoring is also modified.
Pretty much every PSU I've seen that has protecting like this, puts it on a small vertically mounted circuit board, making it easy to see (sometimes without even taking anything apart). As is evident by the imagery of this unit, there are no extra circuit boards on this, making it possible.
Yeas you are right ...!
This modification is for Chinese Powersupply . Expensive one are very hard to modify they have protection on each line
@@Electronic_For_You That speaks volumes about Chinese Power Supplies then!!
🙄 Cheap Powersupply don't have protection
@@22smudger Sort of... The thing is, one key element you would actually _want_ in a Bench Top PSU like he made, would that it can deliver STABLE power levels.
*TL;DR -* The cheap units make it easy to modify, but, their old designs and crappy components may lead to dead electronics... even _before_ modification. Just be mindful about what you let it power...
MOST of these cheap no-protection Chinese PSUs are actually really old topologies (circuit design) and therefore are prone to experiencing lots of voltage fluctuation at times, namely when a load gets placed on a different voltage.
So a high load on 5V will likely cause 12V to drop down to say 11.2V. But also then, 3.3V will likely _rise_ and now might be outputting 4V! 😖
Furthermore, the older topologies weren't that great at limiting "voltage ripple", which are high speed (frequency) peaks and valleys on the rail that are occurring at millisecond intervals. It might only be at a change of 0.3V on the 12V rail, but electronics do NOT like ripple! If it gets too high (and 0.3V is indeed outside modern ATX certification standards) it'll likely kill what it's powering -- note that good PSUs can eventually suffer this fate when their capacitors 'dry out' so be cautious if reusing a PSU on new computer builds of its already 8+yrs old.
This one HAS an OVP, this is the duty of the LM339; this is why the author of this video couldn't get above 15V, after it drops and dies.
Creative For You, Thank you so much for making this video! It is thee most simple and educational. I’ve been trying to find a simple video on converting an ATX psu to one with variable power. I found plenty but…. 99% of them speak so much gibberish between steps and beat around the bush with the information to convert one. I accidentally come across your video from my suggested videos and Boom… Now I have a perfect converted atx psu to run my amateur radios at 14.6 volts. Thanks again
I'm very happy it worked for you 😀 i recommend changing output capacitors to 25V , and you are ready to use it 👌🏼
Anything above 15v the rating will be 0.5a not 20a, limited by the original -12v rail.
Si, uso el 12- y los 24 serán de muy bajo ampere, jamas llegara a 20 ah, si arregla el integrado puede llegar a 20 voltios y 10 ah máximo.
Copio mal.
30V x 20A = 600W . You used 400W chinese psu so those 400w will be more like 200w~250w. Then on the blue wire is -12v to GND, so you make that voltage from diferent outputs + and - whitout gnd. This is not recomended.
You I'll get 20A At 12V 👍
Loading tester. -12(blue)and +12(yewllow).this is short circuit,pwm will be cuted??
@@TAXI-TRUONGXUAN-HG That is not short circuit! +12V and -12V are 2 separate outputs relative to the ground (GND) on a computer power supply! The only problem is that -12V winding can't sustain the power.
@@Electronic_For_You How you can say that you will get 20 Amps at 12 Volts? Indeed you will, but those 20 Amps will pass thru a winding that is rated at 0.5 Amps!
What!
Where you found 0.5A winding?
you must change the capasitor for over 12v line...😁...👍👍👍👍 goodjob...keep safety...
Its better 👍
Attention: the -12V rail in most cases can only deliver 1 Amp! So you can't really combine the +12V and -12V rails for heavy load!
Good morning. Today I tried to make a psu with adjustable voltage, the psu is equipped with 2 ICs: one PJ494CD IC and the other LM339 IC using a 10 kohm variable resistor. I did the assembly exactly as shown in your video, unfortunately it didn't work. Conclusion: the IC PJ494CD is not intended to make a PSU with variable voltage contrary to what you confirmed to me yesterday.Thank you

Was it working before Modification? Is 5V Standby voltage available? (Did you short Green and black wire?)
What's result did the fan spin?
@@Electronic_For_YouGood evening, before the modification the power supply was working properly. The modification was made as follows:
1- on the outer terminals of the 10 ohm variable resistor, I soldered the yellow wire and the black wire, 2- on the interior terminal of the variable resistor I soldered an exterior wire,
3- I unsoldered pin no. 1 of the IC PJ494CD on which I soldered the same external wire already mentioned,
4- Then, at the end I connected the wire to and a black wire ON OFF,
5- I connected the power supply to 220V using the series. the device did not work. Finally I unsoldered everything and returned pin no. 1 to its place, the power supply worked well.

Thanks for doing this video. Most of the comments here are relevant and should be considered by anyone doing this mod. I have seen many such mods and am sure that they work out for some people. As others have said output filter capacitors must be either removed for unused outputs or replaced with proper voltage rated ones. The case and fan should be retained and the case should be grounded. People should be aware of the hazardous line voltages present on the circuit board. Please don't be put off by the negativity, I for one appreciated what you did.
Sorry about that .
But output voltage on 12v line not goes more then 15v 😊. And yeas there are more modification needed. You can check my latest video . 1v to 30v adjustment
Good tiching karte hai 👌👍👌👌👍👍👍
Thank you
Keep the tip of your soldiering iron cleaner and it will function alot better ;)
Thank You
Bro ;D
Sabhi cepesiter ko Cheng karna padega jada volt ke laga ne honge. Or CURANT ka bhi yesa kar sakte he kya to yebhi bata dijiye. Thanks
Yeas
Change capacitors
Please don't do this! 99% of all ATX supplies have cheap output filter capacitors that are seldom rated above 16v. Some good brands may have Nichicon 25v caps but it's very rare. What was done here was good only for clicks, fire and destruction.
The voltage on 12 Voltage rain is not more then 15V so it will not explode. Safe
Don't be novelist and shrill, you just had to say: "hey, you forgot to change the capacitors" It's not a bomb...
@@Emsuvio090460 But then that would not be me.. so ur saying it's Not OK for this '77 DeVry graduate to use his own words? 😂
@@Emsuvio090460
It will not explode
Because the voltage don't get upto 15V
thats right a 35v caps can broke fast
Kya ic charger se 150 ah ki battery charge utha sakti hai jis battery ki voltage down ho gayi ho
150ah battery is too much for it.... You can charge small 12v 7-20ah even 50ah battery
The power supply May explode ... Because a 12v 150ah battery needs 15A and it not made to supply continusely that much current hope you understand
Ну ок,может это и работает,но выходные кондеры то менять надо,а то неплохой салют получить можно.А так,вторая микросхема лм339 если не ошибаюсь должна то отключать БП при сильном разбеге по напряжениям
You mean I need to change the output capacitor ?
That's right . I forget to mentioned that sorry friend .
Так оно и есть, и на первом выводе тл не должно быть больше 5 вольт а он 12 садит
2.5V Not 5V
Me parece bien todo ; lo único y más problemático no se aprecia bien las modificaciones y cortes al circuito y pistas al impreso
Sorry!
Frist i thought to add Current regular but it didn't work ... !
So there some cut on tracks sorry....!
Be careful while doing this modification. And Change alll output capacitors To 35V 1000uf
Volteg bada ne se curent kam ho jayega ya itna hi rahega
Current decrease
Good luck finding an ancient PSU with a TL494.
Can be found on Chinese online shops
Don't do this, it is incredibly dangerous due to high DC voltages on the primary side and you will also need to change just about all the capacitors and zener diodes in the unit to support the higher voltage, to get higher currents you will have to replace a few resistors at minimum at worse the main transformers and MOSFETS will need changing. Besides that most PC PSU's have voltage and current protections . Just buy a proper bench power supply.
You can't rise voltage upto 15v no problem 👍 it has protection
@@Electronic_For_You He is talking about the 2 big caps on the input side (line voltage / AC). If those are not drained you are in for a bad day, and maybe a timeout in the Forever Box.
They have discharging resistor.
No problem 😊
@@Electronic_For_You Not all of them.
This power not have mosfets
Nice videos all of your one question I did it in same way but after 12v it stop work can i remove zener diode to work continuously if remove zener how to now zener to disconnect becoz lot of zener diode in circut reply plz
You don't need to remove any Zener diodes... If your circuit may not work . It think it has over voltage protection... You can try with other cheap units
Love the Soviet Era soldering iron.
Isn`t easier to just desolder pin 1?
Yeas...
I think I need to make more clear video on this topic
He just can't solder
Nice work but if Everytime I turned the pit the voltage at different wires will start changing.. So there can't be constant voltages on each wire right
yeas
you are right
Hello, thanks for the video , you said at 1mn:40s in video : remove pin 1 from other connections: you mean isolate pin 1 from all connections, you mean that it is completely isolated from the circuit? Why not completely unsolder it, like that, we will be safer? Please give me the response. thank you very much.
Yeas
You can do both it just mean free from all connection PIN1
Warning
Use A Lamp With The psu before turn on ......!
@@Electronic_For_You thank you very much Sir
@@عمارةحامدي-ذ7غ
Wlcm 😊
Worst video that I have ever seen ‼️
So very unprofessional.
This video and it’s Indian maker should go back to school to be educated. He is completely MAD 😡
UA-cam should ban this videos and it’s makers.
Great
Thanks 😇
Could you please clean the circuit board with a toothbrush or some air pressure, at the very least. This looks as if it washed up on shore somewhere. If you were to take something and clean the tip of your soldering iron, you'll find that it works ever so much more efficiently and quickly
Thank you so much ♥️
@@Electronic_For_You I saw it too and I was laughing about it, but hey, if it works, who cares? It is great on the other hand to show folks that things can work even in that condition.
likely picked up from a trash bin somewhere in india
😡 I'm not from India
@@stayawayfromislam9225 One man's trash is another man's treasure.
ON THE BLUE WIRE THERE IS NO 5AMPS, PAY ATTENTION WITH LOADS
It depends on your power supply ..... I got 5A at 25V .. If your power supply is cheap (200W) or something it can only give 500ma to 1A
IT'S A MATTER CABLES: +12V HAS 129 CABLES IN PARALLEL, BLUE IS ONE THIN WIRE. ANY ATX U CHOOSE
Yeas ....
Blue is not for high current ...
is it ok to drill the big pads?@@Electronic_For_You
Very good project, can you explain why no 1 pin connected with pot and approxi wattage output?
Pin 1 is feedback pin this why we used pot to adjust the voltage
Output power depends on you power supply
bhai kindly hp ki pc 8019 power supply ko charger me convert kr k dekhaen bypass or voltage kese barhaen.
If it has tl494 then it's possible
Is this the 84th or 85th ATX power supply to be turned into a power supply for other things that can't provide enough of a negative supply?
This thing can only give 1A at - 12V but I have loaded it with 5A 😅 nothing expoloded
still has short circuit protection?
Yeas
Limpia el soldador con una lija ó sand y ponle pasta de soldar y seguido le pones estaño;! verás que diferente!! además, tienes 3 herrores y no t das cuenta, dedícate a otro asunto.
thank you very much
i ordered new iron .
good one
What are the colors of the 30 volt output voltage cables?
5:12 The purple in the video I do not see where the connection is made;
5:12 The colours , Green , Gray , Purple
which are interconnected and where?
Use Yellow + and black -
Short green and black to start the psu ... Gray and purple is not useful
Aoa.
Bhai is me sy ham (12 volt or 2 amp)
Kesy le sakty hai.
Use Black -
Yellow + wair = 12V
If u more than 13v , the lm339 ic cut off the power.
How
it even work on 20v+
Can you please tell me how can I get 24-30 volts 20A or is the blue and yellow wire 20A?
Blue yellow wair is 2A Max
And Black And Yellow is 20A ... Depends on your power supply ....!
You overloading the power supply ... This why it gets turn off
yes Blue end Yelow give you 22/24 v
Yeas
Hola, muchas gracias por tu aportación. Necesitaría para mi proyecto una salida con un rango de 0v - 5v y un buen amperaje hasta 10Amp o 20Amp. Mi fuente es de 500W y me permite 28Amp en la salida de 3,3v y 38Amp en la salida de 5v. Es posible regular alguna de estas dos salidas de 0v a 5v manteniendo los 28-38Amp?
Muchas gracias!
You can use XL4016 Module input yellow 12V and black Ground you will get 1V To 11V At output 10Amps
Is smps se 12v ki battery charg karna hai , isse kitne se kitne ampere tak ki charge kar sakte hain
40Ah maximum
Hello and thank you for this video. I have 5 computer power supplies among these power supplies I found on its IC is written: PJ 494CD and on the second IC LM339N Question: can I do like you an ATX PSU ADJUSTABLE? Thank you for answering me?

PJ494 - KA7500 and TL494
It is the same ic , you can modify it but do it at your own risk there is high voltage 300V+ can kill a person inside any powerSupply if you are an electrician you can do it !
Thanks for the quick answer. I am not an electrician, but I am an electronics hobbyist. I learned it by correspondence in Belgium since the 1980s. Currently, I am a retired man. I install some electronic circuits as my favorite hobby. You say that in this circuit there is an electrical voltage equal to 300 volts of direct current. But in all cases, the output of this circuit does not exceed 30 volts, the yellow wire and the blue wire. As for the input current, it is 240 volts, which is the deadly current, so where did 300 volts direct current come from? Thank you.
300V+ dc Voltage is on the big capacitor in the High voltage side of 220V !
Thanks for your quick answer. I know that the voltage in the capacitor is 300 volts, and I know that the board has a high-voltage first terminal and a low-voltage second terminal, and I must avoid the high-voltage terminal of the board, especially the capacitor. But my question is: Is there a danger if I touch the variable resistor that I will place above the power supply body? Thank you.

No , touching a variable resistor after Modification will not shock because its on low voltage side , but you shouldn't touch anything when its powered on and running!
When you put text on screen, please leave it on long enough to read it.
Sorry.....!
I will do it
Hola que tal, lo del voltaje lo puedo entender y está bastante claro, pero nunca hiciste nada para subir la corriente. Creo "my brother" que lo que hiciste no modifica en nada el amperaje de la fuente. me gustaria que me sacaras de dudas. gracias.
Yeas the voltage increase and Amp decrease . 😊
Thanx
wLCm🥰
Nice brother today I done one using same method every thing go ok thanks for sharing
😊
welcome and do it safely
Supper👍👍👍
Hola amigo es la misma fuente de PC o no
Saludos cordial
Buen trabajo! Sólo me gustaría saber un dato,en caso de tener otro integrado, qué pines hay que modificar? Aislar el de feedback y el potenciómetro a cual iría?
I didn't understand well
Did you asked. how can you change other voltage like 5v and 3.3v.???
All voltage will change if you rotate the pot...!
@@Electronic_For_You All he has to do is communicate in English to English styled video-clip. I don't go to websites where folks communicate in different language and leave there unknown and unrecognizable respond form of language. This type of weird acts started about 5 years if not earlier ago by these folks. They think we are here to learn their language because they think so. That's something like from a mad house.
I try to respond every comment . If it on different languages I do Google translate . I love my subscribers 😊♥️
@@Electronic_For_You Good practice!
Si la fuente tiene implementado algun control de sobrevoltaje esto no te va a funcionar. Yo modifique una fuente de server y los mas alto que la pude llevar es 13.2v despues de eso se apaga sola.
Nice bro keep it up 👌👌👌👍👍👍
Thanks 💎
hi, please let me know, rating current (-12V) polarity (blue) is < 1 A,, how is it work become 20A if we use it together with 12V polarity
No
You Will get maximum 2A from
Blue and Yellow Wair .....!
12V Line can give 20To30A
very good
hello sir... uhm, jst asking... can i get 24-0-24 on this modification...? thanks in advance.
Yeas
You need to rewind the transformer and it is not easy to do .....❤️
@@Electronic_For_You okay sir... thanx for the reply... uhm, nice vid...
I always looking for replays....☺️
thanks for watching
hello friend i speak from brazil and i would like to know if i can release pin 1 of tl494 or do i have to cut the track myself
?
Yeas
You can just desolder the pin 1 from board .. I mean free it from board.... And change all secondary capacitors to 36V one ...
Thanks for watching 😊
right friend thanks, i fix some atx fonts and always change the pwm have to keep checking the references of each pin my language and portuguese and i'm using the translator.
oh
Nice .. Please use a 60W bulb before turn on the power supply. For safety
@@Electronic_For_You yes yes I always use it here and it is called a series light bulb against short
😊
Yeas
Hello! very interesting to share
✌️
why did you use lamp in series ?
smps will receive very less voltage
No
Its working like a fuse if there any problem while working the lamp will glow nothing will explode. Did you understand
Thank you very much for the very interesting video. Please I have a few questions:
1) At minute 5:18 of the video, you wrote "connect green(psu-on) with any black wire" but you actually showed a connection of the green wire with a gray wire instead of the black wire. Please clarify this?
2) At minute 7:19 of the video, you wrote "brown and black" instead of saying "oranger and black" right because the brown color does not exist in the wires of the psu. Please clarify this? I asked these questions because I intend to make the same model of this adjustable atx. Big thanks.
Some Powersupply have different colours wires . And use a switch between green and black Wair because the 12v line can give 3v to 15v adjusting more then that will turn off the PSU .then you need to turn the switch green and black again
Suggestion , Google the wiring diagram of a ATX POWER SUPPLY 20+4 PIN CONNECTOR
you'll understand
Please leave the text in the video for more time. (next time)
Ok
Thanks 😄
My question is can an car baterry by used in betwean chips in that PSU so bouth can by given an DC supply pulsed and AC supply ? Is that posibel? And what leads can by combined to get for exampel 13-18v by 350 mili amps I'm working currently on an satelite dish motor but sadly don't have reciver to control that thing so hoppe an power supply from computer can by usefull .
If you don't want to modify the powerSupply you can use a boost converter 12v to 18v
Hello sir I need cloosed loop baterry 12v lead acid to variabel voltage supply for me delco 12 si alternator I experiment lot with engines I use often amplifier ignition and hv ceramic capacitors so called plasma ignition but the unusual effect is that the starting charge on those old alternator goes up meaning I constantly back fead true the bulb unless I rev me engine more and the bulb goes off .
So culd you advice me what to do?
Shuld I use cloosed loop voltage supply and how much current and voltage is normal for those alternator regulators?
Also I have problems with xenon bulbs,dual filament bulbs and interacting multipel relays to back feading alternator what diode type shuld I use to prevent undesired effects?
Me alternator does bypass the integrated diode in the dashboard but still I think those ceramic capacitors might interfeare with ground potential on the alternator regulator .
So I only use the pin 1 bulb the pin2 suposedly is the sence pin but its bent inside the alternator case.
So I hoppe also if you culd point out where to put diodes on relays I use hella relays 2 pin buzzer,3pin blinker,4pin read defroster winscreen ,6pin wiper motor relays.
Im doing currently entire wire harnest in the car its classic Opel from the 80s.
So in the past I hade unusual problems like engine self aceletating when I turn lights on,or when blinker relay has corrosion on ground rear bulb holder and some black wire on key ignition starts to burn the engine behaves like Hit and Miss engine like some buzz coil so does the engine work in union with the blinker relay,also some times I get static chock and many times I end up with flat baterrys under charge or over charge the baterry.
So I hoppe to finde some thing manuali that can tell the alternator when to charge and at what rpm range also I must finde solution for those relays stoping them to do that strange staff and posibly controler or dimner circuet for xenon bulbs .
So I hoppe you understand me problem and can give me good advice .
Also I wuld like to avoid useing the car chassys as ground due to rosting problems those cars normali have so I hoppe there are virtual grounding circuets.
I have bunch of those mentioned relays so I wuld like to seperate them or at least control to some degree those anoying problems .
That's Quite a Big Question 😓 and you should use Led Bulbs instead of Xenon . That might help to store more changes in battery . And there should be an automatic voltage stabilizer i mean it regulates the voltage and current for the battery to charge from the alternator . And for dimming purposes there are some regulators for car that control brightness ... I'm not a car Engineer . So I don't know much about car ... But these Advice might help you
And you can also search for specific Diagrams for cars in google and following it may help you a lot .
@@Electronic_For_You Thank you I will try out .
Welcome
24v par amps kitna milega
5A to 10A
Yeah Yeah this is very good BUT... This way you just turned Off the Feedback system of the power supply. You have got a varryable power supply but it is just NOT safe!
Not turned of feedback I created adjustable feedback so the output changes
No mention of the potentially deadly charge in the capacitors on the high voltage side then proceed to open it and touch them! Definitely not smart.
They have a discharge resistor, its Safe
Can modify for control current (A) ?
Yeas
But its very difficult
What is the ic number,every supply use different circuit?
It's kA7500 or TL494
Yo necesito una fuente de 19v a 10a,,,,Si agarro el azul y amarillo y ajusto a 19v,,,, cuanto amperios me daria?
I recommend taking Black and yellow. And connect a boost converter at output. Its better
@@Electronic_For_You... y los 20A donde me lo da?
@@a-ber9978 Dependiendo de la fuente de alimentación que tengas. Las salidas que dan mas amperaje son la de 12v amarilla, la de 5v roja y la de 3,3v naranja. Si a la salida de 12v (cable amarillo y negro) le conectas un "DC DC step down module" de máximo 10A y ya lo tienes, y sino le conectas uno de máximo 20A y tienes salida de 12v regulable a 20A.
@@sandseeker7 pero es que necesito son 19v
Hello dear friend, it's not clear what you're doing
Sorry
Hello, im making a project where i Need 12v 15 amps for a 775 Motor would a pc power supply Like this work? Thank you!
Yes
@@Electronic_For_You i tried it but the power supply keeps turning off after appliying load for the motor what am i doing wrong?
Use a soft starter, and Good Quality ATX Power supply
@@Electronic_For_You ok thanks
Welcome
Blue and Black 9V to 30V.
how many amperes?
Blue and black
24V -/+ 2Amps
You can not increased more than 1 volt in 3.3 volt and 5 volt cause of over volt over load over current pin will effect on shot down stand by circuit and 24 v is only 1 ampear
I did get 5V in 3.3V
Good my friend but I was asking can you help me make a circuit that controls 50 volts and 20 amps
Its very High voltage and ampre. You can buy High Power Buck Boost Converter
Türkiyeden merhaba, tek entegreli güç kaynaklarında 14,4v yapmak kolay oldu. Ancak "sdc7500b" entegrede sizin videoda yaptığınız gibi pin 1 i kullandım. 11v olunca güç kaynağı kapanıyor. Lütfen yardımcı olabilir misiniz?
Hello from Turkey, it was easy to make 14.4v in single integrated power supplies. However, I used pin 1 in the "sdc7500b" integrated as you did in the video. At 11v the power supply turns off. Can you please help?
Welcome
Is your Powersupply is in working condition before Modification... And be careful when modifying it if you disconnected the pin 1 while the Powersupply is running it may not work . Connect potentiometer same as shown video
@@Electronic_For_You Evet aynı şekilde bağladım. 11v olduğunda kapanıyor.
Modifikasyondan önce 12,1 v olarak stabil çalışıyor. Eski haline getirince de 12,1v olarak çalışmasında bir problem yok.
@@Electronic_For_You Ayrıca İlginize teşekkür ederim.
I think your ATX Has more protection. That needs to be disabled. 😊 YOU can try other cheap one
ok..where is measurments for 30V20A ?
30V is
-12V and +12V 2A
+12V - black 16V 20A
@@Electronic_For_You its your video title 30v 20a.....now what you tell us ? 16v 20a ?.....its ok to hack atx power supply to be ajustable but will not have adjustable output from 1v to 30v with 20 a
not just putting a potentiometer ..... it's a little more complicated ....
You can get really 1v to 30v but from different rails like
Orange 1V to 4V Red 3V to 7V yellow 8V to 16V and blue and yellow 12V to 30V 😊
I will make 1v to 30V one very soon soon
En este trabajo se dañaron dos capacitores de2200 y6.3 Vcc puedo colocar otros de mayor Voltaje, y diferente capacidad de microfaradios
Oh
They used in 5V Rail ?
Mine has 16v capacitor
Why should before powering use 100watt lamp..??
If ligh glow at full brightness without load that mean you have blow up something . It works as a protection . If light doesn't glow without load it can be removed
Trabajo desordenado y falta limpieza. El irvuito puede entrar en corto por la acumulación de tierra y polvo metálico.
Sorry
That was my very first video on UA-cam . now I fixed many thing I can . Thanks for watching
Ура!..
Урааааааааа!
Between blue and yellow, the -12v is rated at most with 1A current, what use is it with only 1A allowed current? 30w at most.
You can get 2A because the diode inside is 3A
I have concern that this will not work due to protection ckt
Voltage cannot be increased more than 14V on 12V line
Really 20amps?
Depends on your Powersupply have
como hacerlo a fuente con ic sd6109? puedes ayudarme por favor? Gracias de antemano
No , we need TL494 or KA7500 to modify
👍👍👍
♥️
Sir, mujhe chahiye 20 amp ka charger 100 ah battery k liye bna k dey sktey hain
Please can you tell me in English 😊
30 v değeri için 20 amper doğru değil. -12v çıkışının amper değeri çok düşüktür. 300ma-500ma gibi yani 30v çıkışı ancak bukadar amper çıkışını verir. 15v için 20 amper geçerli olabilir.
20 amps is not correct for a 30v rating. The amperage value of the -12v output is very low. Like 300ma-500ma, that is, 30v output gives only that much amper output. 20 amps may be valid for 15v.
Yeas
This cannot give much current at - minus line
I will make a 1V to 30V one soon
@@Electronic_For_You ihave one. you can look my video
Thanks
haw you increase the output voltage without change the output electrolytic capacitor
Output voltage is not increased more then 15v at 12v rail
Wow☺️
Thanks bro 💪
Удивительно как ему в лоб конденсаторы не полители? В 3 раза по напряжению перегрузил. Не делайте так никогда
Китайские вещи не горят 🤣
those wires seem too thin for 20A output.
You can use multiple wires
no old computer power supply goes more than 5 amps at that voltage ,maximum
-12V 2Amps Maximum
Is it really 20 Amp???
Black - yellow+ = amps ratings on 12v line
Hello. The rework scheme can be seen in the figure?
Схему переделки можно увидеть на рисунке?
Извиняюсь. Я обрезал неправильное соединение, потому что хотел также иметь регулятор тока. Но он не работал, поэтому все соединения были восстановлены. Это будет работать так, как я показал. 😊 Если он еще сейчас работает рекомендую к просмотру ( Касьян tv ) Канал UA-cam Atx Powersupply взломать !
Sorry. I have cuted the wrong Connection because I wanted to have Current regulator also .but it didn't worked well so all connections restored.
It will work how i have shown . 😊 If it still now Work
i recommend watching ( Kasyan
tv ) UA-cam Channel Atx Powersupply hack !
Have a nice day ! ♥️
Хорошего дня ♥️
@@Electronic_For_You Спасибо, посмотрю...
Всего хорошего и успехов! 🤝✊✊✊
Thanks for watching ♥️
Full support your country ♥️
Long live great president ♥️
@@Electronic_For_You thank you! Where do you live?
@@misha_mikheev
Bangladesh 🇧🇩
It's impudent, but could you please tell me in detail all the materials needed to raise it to 30v, since Chinese products will break quickly and I can't trust them.
Needed to rewind the transformer and rectify it
Hello, is there any way to increase the voltage?
Please think about how to raise it to near 30v
Please follow the pinned comment
Where is 30v20 amp ?
20A can be get at 15V
And 30V Blue - and Yellow + 2A
а где нагрузка 20А? не переживай. тут делов то осталось перемотать транс, транзисторы, диоды, конденсаторы поменять и будет счастье.
Я сделал это на другом видео, вы можете проверить, но я использовал обмотку 12 В, она имеет 12-0-12 витков, и я использовал 12+ и еще одну в качестве земли.
Nedělejte to bez výměny kondenzátorů a možná tranzistorů a diod, nejsou na takové napětí stavěné!
My diodes are 45V and capacitors are 16V and voltage on capacitor maximum is 15V you are right, its better to change them
-12V (Blue Output ) can only 0,5A.
Uess
20 AMPS .. MAN YOUR ASKING FOR A GOOD LESSON INVOLVING THE WORD..respect my ground and i will respect yours!!otherwise be prepared to rumble in the jungle!!
If everyone is just bored then go a head ,, but if you really need a good dc power supply ,, save yourself the time and trouble ..go invest in one ..even a cheapy off ebay is safer than these old atx power supplies.20 amps is nothing to be fooling around with.. 3 amps will kill you at 10 volts or less.dc and a/c .. 20 amps well dont disrespect the rules of electricity ..and it wont disrespect you either ,,however electricity doesnt give a shit anyways..remember that .
Sorry man
But not everyone has money to buy a expensive power supply! And it will give 12V At 20A The voltage increase Ampre decrease at 30V You will get 5A if your Powersupply is good brand!
Can we repair this type of SMPS by STR module please reply if anyone knows
Check transistor and change TL494 I hope it will works
@@Electronic_For_You ok I will try once
How much amp it will give at 24 volt
2-3A
any way to increase the amperage of the 12v lead or can I use two units I need 30 amps for my projects
You can use 2 of them 🤔
Power supply
yeas
Nice I make this work very Veryan good at 14v I got 16A nicely brother make buck converter using uc3845 pwm waiting
Happy to hear that
😊 Ok i will try