20 Amp Battery Charger with Computer Power Supply - 220v AC to 1.5v / 3v / 6v / 9v / 12v / 24v DC
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- Опубликовано: 13 июн 2021
- In this video I am going to salvage components from an old CPU and I am specially interested in its power supply because the computer power supply has a variable output such as 1.5 volt, 3 volt, 4.2v, 5v, 6 volt, 9 volt,12 volt, 24 volt and all this at very high 20 Amperes.
It takes in 220 volts from the home socket supply and converts it to variable DC so if you have one never throw it away.
Also in this video I am going to test this 300W power supply on several DC Motors and also make a 12 volt battery charger with it.
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#batterycharger #powersupply #universalcharger #12v #cpusupply 
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Purple Wire is “5v Standby” it gives constant 5v/2A while the supply is plugged in (even if it is turned off)
Grey Wire is “Power Supply OK” it gives 5v when the power supply is working correctly.
thank you sir! useful info
One of the few that properly explains his work, I'm the total ignorant on electronics, but these explanations make me understand everything better.
It's an intelligent usage of SMPS with its different combinations of power supply. GREAT
Congratulations for this video. I am a follower of your channel for two years ago or perhaps more. I have seen more than 40 videos about computer supplies but no one with this focusse. Very interesting and practical!!. Perfectly explained as always. Thanks and continue . Greetings from Madrid. Spain.
Ive just made a multi volt charger with this video. No tenia ni idea quw se podia usar asi
Ka0 aap pp0LlLLLoLLLKIIIIO@@kikofras
grt✌
Yes, great video
Great work as always. I also have a battery charger for my 260Ah battery. That seems like a PC power supply but inside the power supply case I fixed a specially designed charger circuit which is awesome. That charger have great features like anti spark, reverse polarity protection, charging control, current limitation safety and much more. A regular PC power supply don't offer such features.
GOOD
show us your project!
Show us yours
@@ionmarius6652 sure. One video is available on my channel. More videos with reverse engineering as well as circuit diagram, I will upload soon on my channel.
M;
Damn!, thank you very much. Finally i found a video on you tube explaining how to reuse this power supply. I saw a lot of videos in spanish (my native language) and nobody showed simple examples like you. Greetings from Venezuela. Suscribed.
Wooow superb . I finally found a video about a great power supply . Hats off bruh ❤️❤️❤️❤️❤️
Well that quite interesting i forgot that you can take the -12 v blue wire and as well the 12v to make up 24 . But the -12 will not give more that 0.7 to 0.9A usually better tap on the transformer or better you can reworked a bit but that mean you have to remove the supervisor ic . Got mine simple one done few year's ago . Great work
Muy buen tutorial, te felicito y a la vez te agradezco por compartir con los que siempre buscamos que aprender algo más de la forma tan sencilla y amena, un fuerte abrazo desde Perú
Thanks for your video. I learned a lot.
Bro amazing what a clean and smothly way to explain every thing ...🙂👌👍🏻👍🏻👍🏻
Very good video thank you so much my friend for this information ♥️♥️♥️♥️♥️♥️🆗️👍👍
Excelente tutorial maestro me ha facilitado mucho trabajo muy bien explicado estoy suscrito para sus demás vídeos exelente
The purple wire Is 5v too, It always outputs 5v even when the green wire isn't shorted to ground
This is a great video. So glad I found it. Best how-to vid out there.
great video I've learned a lot!
I had no idea you could get so many voltages with different combinations of wires. Awesome!
you are funny...….
Very very nice 👍❤️🙏
Clear explanation thanks you
Thank you so much Mr, your voice is so good, i like your voice
Par Excellent Informative Video you have made seems you have digested this particular knowledge & expressing with quite ease! Admirable wisdom a true Teacher must have!
Thanks Sir. This ur video is transformative.
hey hey, i just discovered your channel today, and so far, really great content, i also love recycling old electronics to experiment and make new stuff with it!! And if you haven't found out yet, i also wanted to tell you about the purple and grey wires because they can be very useful, the grey one is called "power good" and is used for safety, when you turn it on, the psu as a self test fonction that verify that every rail output the right amount of voltage, if everything is ok it will output +5V after a few milliseconds, but if something is wrong it will remain at 0 and a pc won't turn on, in a project like yours, you could use it with an led to make sure everything is ok before using it, i'm sure a more advanced user could even use it with some transistors to prevent part of a circuit from turning on if something is wrong!!!! the purple wire is the 5VSB(stand by) and could be used to make your projects a little more fancy if you ever want to go that way, it's the only wire that will still output 5V even when the psu is turned off(but still plugged), a pc use it for a bunch of things, like keeping the battery charged, powering the mobo's led, sleep and wake up functions, etc.. it could be used for any number of things in a diy projects, from a simple always on led, to a more complex circuit like a clock, or even power a microcontroller... basically, anything fancy you'd want your project to be able to do while it's main part is off, you can, so long as it doesn't require more than 5V!!! XD Anyway, keep up the good work, i love watching electronic videos while i'm working on something too, specially when it's about recycling old stuff into something new and useful, because not only is it fun, it can help to save the planet a little and even save you some money in the process!! XD
Thank you so much bro, I searched Wikipedia for this info and all it told me was Power Good and Standby respectively. I didn't know what it meant but you explained it really good and in an easy way. Thanks Again
@@abdul_samad2708 no prob, i feel you bro, had to search for a while just to piece together scraps of info from here and there just to get the idea, experimentations had to fill the gaps!! XD
@@thabed007 Lmao yes... Thanks again brother
Love you bro , finally I am
not opening my computer ❤❤❤
very informative.
What a great things you have done...
Gracias,muchas gracias, saludos desde Venezuela
Nice video, thanks :), suggestion, add extra fuse for protecting your PSU.
good work provided detail this will help a lot
It's worth a mention that the output power of -12V/-5V lines doesn't scale up with max power output of the PSU. They are limited at 6W/2.5W power output (@0.5A max current, as in your case), even if you have a 400W model. And that limitation carries over to any combination you'd use them in, for example the 24V. So "... 24 volt and all this at very high 20 Amperes" is definitely overblown.
Correct, For example if the +3.3V gives you 24A and the -12V gives you 0.5A, you are basically limited to the 0.5A, using that combination to charge up your battery at a rate higher than 0.5A will destroy the PSU.
Good job 👌👍
Very interesting !! You have got a like from me ! thanks for your time
U are a genius, great job bro
Super message thank you sir 🙏
Nice 100% thanx. Good explanation
Amazing workpiece awesome 👏
Thank you so much brother, this has helped me a lot for my project.. Hoping to see 1M soon, you got a sub too now! ;D
And for those who are wondering, this is a ATX Power Supply which means that it has a wire which can keep supplying +5V Battery even if its powered off and that is the Purple Wire which does that. The Gray Wire provides +5V if all the other wires function correctly.. I can't go any simpler than this. And big thanks to @sBeDs in the comment section below, he helped me figure this out and I am spreading it forward.
I love your videos and I like to recycle old used products and this has helped me create a computer fan powered without a motor but with a power supply. Love your vids, keep doing what you're good at.
Great bro amazing
Thanks for sharing!
Excellent video, I always checked power supply the usual way and never really thought of checking such combination of wires. Blue and orange seems perfect way to charge up 12v battery (and packs), although I wouldn't recommend using it unless you've BMS installed. What is the value of diode you used to drop voltage?
احسنت ستاذ شكرا الك لي نشر العلم لي ناس نود منك المزيد 🙋♂️
In computer classes, we were always told, never open your power supply, neither your monitor. At that time, the monitor had the big cathode ray tube.
And the power supply had some cooper wiring and capacitors.
Muito bom amigo..
very good. very useful
Well explained bro
Very informative video. Shukeria.
very good video...thank you
thanks you my friend for benefits us
Great job as always, I m a big fan of yours but bro just tell me from where we can bye that variable power supply which is shown may be in your each n every videos 😉😉
Great awsome, sir even explain us the wiring of the smps
you have a new fan!!
Köszönöm szépen..👍👍👍😊
@ 24v it has very few amps. Im surprise it survived being connected to that big motor!
God gives for your more knowledge
Your Videos Are Awesome. ❤
Be VERY careful... For example, the -12V (blue wire) is only rated for a VERY small load!
As for the two 'unknown' wires:
- the grey is a 'Power-Good' output (to tell the computer MoBo that the supplies are all 'stable')
- the purple is +5VSB (it's the 5v 'standby' voltage which is present even if the green 'start' wire hasn't been grounded)
I made an electrolysys power supply it works good for remove rust
BIEN EXPLICADO MASTER, EXCELENTE APORTE, GRACIAS...
Bro, u are amazing....
Thanks a lot 🙏
amazing
Don't charge lithium cells with constant voltage! It will probably draw tens of amps. They must be charged with constant current. There are cheap CC buck converters for that purpose.
Very Good...!!!
My friend just... THANK YOU!!!🙇♂️
I don't spend 100 euros for buying two 12v 5a power supply for my Imax chargers (1s-6s 80w).. I use them for recharge my 5s batteries!!
I use 12v 1a power supply from wireless home phone...
To charge (balance) a 5s4p battery make 10 hours...😨 with 0.7 amber...!!
So I have 4 batteries 5s4p and 2 imax 80w..
Waiting for low voltage and I will charge them with 1.5a...
I want to believe, I will charge them all in 10 hours...!!
Thanks again for your idea!!!👏🏼👏🏼👌
great, thanks
Thanks sir!
✌️PT
Nice❤️
This is so powerful
Thanks you for your vidéos.i try to understand like you
Thanks a lot
You just saved me 100 $$ by blue and yellow wires.😂😂
Thankq bro 😎👍
Thank you
Excellent
nice idea sir❤️❤️👍
Its not a really great sandwich, its a really great power supply @12:11
Good video
I think (not 100% sure) the 2 unidentified wires are most probably connected to PGI and PGO pins of an integrated circuit supervising voltages (PGI = "Power Good Input", PGO = "Power Good Output").
That kind of IC monitors voltages (Over Voltage Detection, Under Voltage Detection, etc...), and is often an 8 pins IC in relatively recent PC power supplies, and is located in the secondary part of a power supply
Plz see carefully that it is rated only 0.5 A for -5v and -12v. so if you want to use -5v and -12v in combination then you can draw only upto 0.5A. Otherwise you may end up with damaging it 😌.
Always i want see this
Good and clear explanation, I am appreciated.
Hi how are you
Some of the fans you can get two speeds, USB 5 volt, or 12volt high speed put in a cooler with ice you have a simple ac unit
your video is very good but dangerous action and no safety. to understand it i need to play many times and write some notes and drawings. thanks for sharing. i'm computer technician
bộ nguồn atx này công suất lớn. Good
The Purple One is 5v StandBy which means if the Green Wire isnt connected to ground it will still output 5v
the Grey one is P.G(Power Good)
Ok felicitari
nice video
NEVER re-charge batteries as described. Use a charging circuit to limit the current, have a proper charging cycle, and shut-off when charged. THE METHOD HERE IS AN EXTREMELY UNWISE.
You cannot desulfate the plates of a lead-acid battery with a regulated charge. “Smart charger” doesn’t mean better charger
you are the type to use a hammer on screws and call yourself clever
DC has always zero frequency & u can use higher amp than rated amp in your devices . Only voltage should be exact as rated on appliance . So what unwise here .
@@bhavishdhankar1943 I am talking about re-charging batteries.
Pq
It would have better if you tell us about the Amps on each combination to better use it
Need to be very careful charging Li-Ion batteries. They do not like continual charge beyond 4.2V. Need to add in a voltage cut off circuit set for the nominal 4.2V.
The problem you have there is over current when charging. You could easy cause a fire and buckle the plates in a battery.
Correct. This is a demonstration on a desktop PSU versatility as a bench power supply. aMany modifications are required for any of this to be safe. Mods are easy when you salvage.
@@David-bc4rh should have a current measure and current limiting circuit , this is fairly easy to do.
Of course you could cut all the wires, tap into the 12v rails and run a variable buck boost with display and current limit function. But then you could use a fair few power bricks to do this even a old laptop charger.
Great!
hi von germany vielen dank
There's no overcharge protection for that?
Great
🤔 Before cutting the connectors, try to learn of them. This will avoid the problem you encountered with the 2 unknown wires.
glove on the left hand.
I gash my fingers real good while harvesting parts from sheer sheet metal housings, and now I have scar tissue in enough places that I don't need gloves.
Nice
As others stated the -12V cannot carry much current. It's a single wire, I can't tell what size those wires are, maybe a 22AWG, that is a 0.6mm2 wire rated around 0.9A for power transmission.
I also have the same power supply
Show 👍