Turn any fixed voltage adapter to variable voltage output (3v

Turn any fixed voltage adapter to variable voltage output (3v - 25v)

Рет қаралды 1,401,601

3 жыл бұрын

How to turn any SMPS adaptor's output voltage variable.
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Пікірлер: 349

@user-mi6ht9lm1n 3 жыл бұрын

عمل جيد وصحيح جربت سابقا هذا التحوير في عدة بور سبلاي ونجحت هذه الطرقة احسنت👍👍👍

@besmartIbrahimsultan29 3 жыл бұрын

🙂🙋‍♂️👍👏

@christopherperry8693 3 жыл бұрын

Very good. Best from you so far. The addition of a small volt metre module to the case would not go amiss. You have already shown where to connect one with the multi metre.

@besmartIbrahimsultan29 3 жыл бұрын

🙂🙋‍♂️👍👏

@nourddineabousfiane1789 3 жыл бұрын

you are a very talented man too bad I didn't have the chance to know you before but hey now I start watching from the first video good luck

@RingZero 2 жыл бұрын

Great presentation. I'll still stick to the bench power supply that is less than $50 with all bells and whistles and have tested well by other KZfaqrs

@ahmedsoffy581 3 жыл бұрын

i saved this video in my profiles . every week i enjoyed and watch it . i think its great

@atosastro 3 жыл бұрын

Sir, i have smps like yours, there already an adjustable potentiometer, but only adjust between 20v to 25v, so what can i do if i wan't to adjust voltage from 3v ?

@dragan3290 3 жыл бұрын

I love your work. I subbed immediately. Cheers from Australia

@TechIdeasAG 3 жыл бұрын

Welcome

@radiated-one 2 жыл бұрын

I would also add a reversible barrel connector output from an adjustable 3,4.5,6,7.5,9 and 12volt barrel interchangeable wall power supply.That way you can power most low power electronics,and reverse the barrels if the tip is non standard negative.Some tips are negative for some reason.

@anomittity Жыл бұрын

Usually when you find the tips reversed its because the company wanted to make the PSU Proprietary so you can only get it from them. Any noob cake can simply cut/splice the wires in reverse. 😆

@boonedockjourneyman7979 3 жыл бұрын

Nicely done. Add a load on/off switch and a tiny little V/A meter and you’ve got it.

@realfakibazz9737 3 жыл бұрын

Awesome 👍😊👌 bro keep it up and love from BANGLADESH 🇧🇩🇧🇩🇧🇩

@besmartIbrahimsultan29 3 жыл бұрын

🙂🙋‍♂️👍👏

@oswaldmelville5939 2 жыл бұрын

Excellent work bro you have my respect in Tech

@maronkotb9123 3 жыл бұрын

Well done the pinnacle of creativity and professionalism. I hope you will explain to us how to modify all types of power supply so that the voltage becomes variable by means of a variable resistance. Computer Power Supply. And so forth. Thank you from the heart 🌹

@Elfnetdesigns 2 жыл бұрын

Professionalism. LMAO yeah ok. Only thing these people are pros at is running video farms and scammy call centers

@MJKarangkobar Жыл бұрын

good work, I think this should be tried at home. Make a tool for simple purposes, such as controlling the rotation of a small motor. I will see another video on your channel. Thank you sir 🤝

@ahmedsoffy581 3 жыл бұрын

perfect work thank you brother ,. i learned so much from you thanks . l like it

@rc6696 3 жыл бұрын

Já cheguei dando lique no vídeo, porquê já fiz esse esquema em três fontes dessas de com corrente de 3amperes e utilizo pra testar equipamentos. Parabéns 👏👏👏👏👏 TMJ.

@michaelnoardo3315 3 жыл бұрын

sabe se consigo em fonte de notebook de 19 volts ?

@besmartIbrahimsultan29 3 жыл бұрын

🙂🙋‍♂️👍👏🙂🙋‍♂️👍👏

@elisilva5323 3 жыл бұрын

@@michaelnoardo3315 tô tentando com fonte de notebook vc conseguiu?

@michaelnoardo3315 3 жыл бұрын

@@elisilva5323 não tentei ainda... Tenho umas 10 aqui de 19 volts e 5 amps

@rc6696 Жыл бұрын

@Paulinho Finho Não

@wesnxs 2 жыл бұрын

greatly appreciate this video having a few of these around will be handy even if they only hit 16v

@Uraim Жыл бұрын

12volt power supplies can go 20volts but can be boosted a little bit, like 22Volts

@victorp.6907 2 жыл бұрын

На сопротивлении перепаяй провода, чтобы при вращении по часовой стрелке напряжение увеличивалось, а против уменьшалось. Так буде правильнее. И переменное можно взять с меньшими габаритами и поставит в центр корпуса во внутрь, а наружу вывести только ручку.

@user-xh2nz5le1z Жыл бұрын

А у них всё так. Да из-за трёх вольт стоило-ли заморачиваться.

@baotaichannel1938 2 жыл бұрын

I See, You do work, Very good. I am from LAOS PDR. Thaks. For information

@ylw4708 3 жыл бұрын

电源内变压器最大转换电压约是标称的2倍，并且要考虑高电压端的电压余量，所以用5V的电源只能最高调到10V左右，同时滤波电解电容器的容量和耐压应加大。 The maximum conversion voltage of the transformer in the power supply is about twice the nominal, and the voltage margin of the high-voltage terminal must be considered. Therefore, the 5V power supply can only be adjusted to a maximum of about 10V, and the capacity and withstand voltage of the filter electrolytic capacitor should be increased.

@ylw4708 3 жыл бұрын

补充一下，下面电阻应该1KB才对，否则理论上最高电压只有13.86V左右 To add, the following resistance should be 1KB, otherwise the theoretical maximum voltage is only about 13.86V

@santecutatso5505 3 жыл бұрын

Super idea!

@TheYankeePainter 2 жыл бұрын

Thanks for this nice work.

@JunPTechnician 3 жыл бұрын

Thank you for sharing sir new supporters here

@Bianchi77 2 жыл бұрын

Creative info, thanks for sharing :)

@kenhnghiencuuientu2550 3 жыл бұрын

Bạn làm rất hay đó và chuyen nghiệp rất thích

@aliusta2020 Жыл бұрын

thank you bro ı solved my charger problem. good video and teachfull

@electrohardik8497 3 жыл бұрын

Great bro

@seeithappen1 3 жыл бұрын

I wish I saw this video first. I would have spared buying the dc to dc converter some time ago.

@lingli314 3 жыл бұрын

The transformer was dedicated around the peak voltage ex 12V, you cannot increase or decrease the TL431 above 12 volts because the PWM IC pulse duty cycle will run out of range and stop oscillating.

@Elfnetdesigns 2 жыл бұрын

^This^ Most people watching this stuff are looking to be as cheap as possible "I has old laptop or phone chargers! I don't need to pay $75+ for a proper adjustable PSU" and know very little about HOW switch mode PSU's work. Fixed output units are designed to be fixed output.. I mean I guess this would be fine for someone learning electronics to experiment with but not for someone looking for a bench PSU, definitely if one needs an LED light driver..

@bdee1084 8 ай бұрын

@@Elfnetdesignsi think adjustable regulators are cheap

@shashwatvishwakarma269 3 жыл бұрын

Wow nice

@bigbadalphawolf9330 3 жыл бұрын

Great vide, I subscribed to the channel.

@ramakrishnanm6502 3 жыл бұрын

Excellent ! Keep up the nice work ! You can also add a mini LED voltmeter on the case to monitor the voltage

@dwgwnr1969 3 жыл бұрын

@Neil Bridger u are full of shit

@jordanleffler6779 2 жыл бұрын

@@dwgwnr1969 lol no he's not

@shamimalam9533 3 жыл бұрын

Good job

@technicaljourneywithpuneet 3 жыл бұрын

Good 👍

@rahimsarvejahani2083 2 жыл бұрын

بله درسته کاملا منطقیه من خودم با مقاومت‌های ثابت چندین بار برای اهداف لازم و البته ولتاژ ثابت فقط جهت تغییر ولتاژ انجام داده ام و درست هست🌹🌹🌹

@gorlar955 2 жыл бұрын

Saved my day!

@hakanbaydogmus438 3 жыл бұрын

selamlar çok güzel bir çalışma bilgi ve emeğinize çok yeşekkürler..

@besmartIbrahimsultan29 3 жыл бұрын

🙂🙋‍♂️👍👏

@chandanchakraborty3090 3 жыл бұрын

Excellent

@orhanutlu7439 Жыл бұрын

Nice job. Thanks.

@jeanmarcPrizzon 3 жыл бұрын

So CooOOL ✨👍

@magdyandrawes1497 3 жыл бұрын

Very good

@cdrive5757 2 жыл бұрын

Convention has it that when a Pot is turned clockwise the output voltage (Vout) should increase not decrease as seen here. Swapping the two fixed wire nodes of the Pot will fix this.

@binaryglitch64 2 жыл бұрын

Your not wrong, I rewired the pots in my mom's stereo to be left handed friendly (she's left handed) as a kid... the moral of that story was tangential but since I brought it up anyways... I learned that you should ask if people want a favor before you do it... she had gotten used to using them the normal way and it kept throwing her off, so she had me change it back. Also while technically a variable resistor in theory should work fine both ways, design is probably party informed by this convention thus they're designed to be used per the convention. Though I doubt that the design-informed-by-convention effect has had much or even any effect in the actual pots produced by the various manufacturers, so I can't see it being an issue, I'm just explaining the underlying principles of why we... you know what, I'm talking too much...

@cdrive5757 2 жыл бұрын

@@binaryglitch64 Are you perhaps a psychology student? I think you've over complicated a basic electronics convention. Whether it be controlling the brilliance of a lamp, the volume level of an audio amplifier or the Output voltage of a bench power supply the following is an accepted POT convention worldwide. Turning Clockwise = Increase Turning Counterclockwise = Decrease

@binaryglitch64 2 жыл бұрын

@@cdrive5757 see told ya... talking too much.

@echodelta9 2 жыл бұрын

It's not just convention. I reversed the gas valves on my stove. I have seen only one volume control wired up wrong. Hotel in Florida vacation and my dad blasted the TV every time he went to adjust it. Plumbing is where this got screwed (pun) up. They took a normal right hand thread and put it into a head and valve seat and now it works backwards. Electronic controls hadn't been invented yet. But now hear me out, if you have a logarithmic volume pot it will definitely be near useless backwards. Grant's mom knew something was not right, all the range was near the one wrong end. A linear pot would be better for voltage selection, where half way up is about half the voltage range.

@ansariexperiment 3 жыл бұрын

good job

@MyRefrigeration 3 жыл бұрын

Thanks 👌

@SuperFreeEnergy 3 жыл бұрын

Very nice 👍👍

@technicalzonepakistan 3 жыл бұрын

Amazing

@ansariexperiment 3 жыл бұрын

amazing

@user-kb4fm5hu3c 3 жыл бұрын

you are creative

@cryptoBTCzone Жыл бұрын

Great work. I am impressed with the idea. Kindly how can one make a ±3V dual dc Power Supply

@abdelfettahoumizane9396 3 жыл бұрын

Thanks man

@thirdroompro 3 жыл бұрын

So would this make a solid variable DC power supply for the electronics bench?

@danielmeecham464 3 жыл бұрын

Thank you for sharing this video.

@gedeonselemanitambwe3175 3 жыл бұрын

Thank you, you are an inspiration

@madhusudangupta3661 Жыл бұрын

Reading all the comments, it transpires that the viewers are more knowledgeable than the pseudo expert.

@balakrishnanthavakkara1599 3 жыл бұрын

Good idea but you should interchange the input and ground so that while rotating clockwise voltage should increase.

@JoseSilveira-newhandleforYT 3 жыл бұрын

Actually, just switch the green wire (see at 3:54) to the other side (free terminal) of the pot.

@chandruasp 3 жыл бұрын

Yes correct the open end of pot need to shot with mid pin.

@little2_2master 2 жыл бұрын

👍

@sankhajitpaul9184 3 жыл бұрын

Nice

@abhijitrashinkar 3 жыл бұрын

One of the wires connected to the potentiometer if the side was changed then the rising voltage would be clockwise instead of anti clockwise and that is more logical.

@kabandajamilu9036 2 жыл бұрын

So nice

@BomJimmy 2 жыл бұрын

Very helpful hack.

@anomicxtreme 3 жыл бұрын

I have opened hundreds of adapters and NEVER has one been that easy lol. Nice idea tho

@manoloduda3318 2 жыл бұрын

You can put some acetone or thinner in the área that the parts come together, wait for a minute and try to open. It is easier and more accurate using a seringe to do this.

@manipanch3092 3 жыл бұрын

Keep up continue

@budisantosochanel Жыл бұрын

thanks for tutorial

@keupondestroy911 2 жыл бұрын

Merci pour la vidéo

@klipk7296 Жыл бұрын

I wonder how many house fires this video has been responsible for

@ziadfawzi 2 жыл бұрын

Thank you so much.

@oscarguadalupemorenoestrad792 2 жыл бұрын

Thanks for give us this tip,we can use several of this p.s.that doesn't work.

@tarcisiomarconcine4289 3 жыл бұрын

Beaultiful Aways freedon Forever

@ShivaShankar-rj4rg Жыл бұрын

Some sticky tape should be sticked on to the shaft of the motor to show its rotation with the varying voltage. Otherwise the rotation speed cannot be seen while demonstrating it.

@vandehoek 3 жыл бұрын

What a good idea.

@mwint1982 3 жыл бұрын

That's prahfit!

@nguyenthan3794 3 жыл бұрын

Great!

@florenciomartinez3695 3 жыл бұрын

i only saw voltage go to 14 volts can it go up to 30 v? if not you can build one with a lm 317 right it's a good idea but seeing is believing and i didn't see voltmeter go to 30 volts

@jhonnyambarita236 Жыл бұрын

thanks for sharing this video

@TechIdeasAG Жыл бұрын

My pleasure

@klauszsilva 3 жыл бұрын

Muito bom

@mangjay80 Жыл бұрын

Acha acha tike good good idea

@MuhammadDaudkhanTV100 3 жыл бұрын

Sweetheart and cool

@besmartIbrahimsultan29 3 жыл бұрын

🙂🙋‍♂️👍👏

@cesarjorgemurillobarientos1813 3 жыл бұрын

exellent

@vijaysharma-ww3ij Жыл бұрын

Thanks sir ji good

@ravikantsoni4334 3 жыл бұрын

Mast hai

@santdnyaneshwar9920 8 ай бұрын

👌🏻👌🏻👌🏻👌🏻👌🏻👌🏻👌🏻👌🏻👌🏻👌🏻 God definitely gives something different art who can't speak and hear like you.. But very sad you can't speak..😔

@user-rw7sb9ej5t 3 жыл бұрын

Cool👍👍

@viciriucandreea5835 3 жыл бұрын

Ok felicitari

@user-tb1lh5yh4g 3 жыл бұрын

хорошая идея

@nestlk 2 жыл бұрын

super

@eugenrussia7155 3 жыл бұрын

кстати потенциометр - отклеится от корпуса после первого реального нагрева этого блока питания

@kumartecelectronics6720 2 жыл бұрын

Good

@luischavez8695 2 жыл бұрын

¿Después de hacer la modificación se mantiene la misma corriente (5A)?

@antayudi5428 3 жыл бұрын

It would be great if you can adjust the amparage from 1-10A for example

@chabbasanchez9693 3 жыл бұрын

Depend of amperaje of they eliminator example uf si 3a maximus is 3amp

@andrew_koala2974 3 жыл бұрын

anta yudi The word is CURRENT not amperage. Current is measured in Amps. You should read more to better learn the correct terminology.

@yeagere2472 2 жыл бұрын

@6GDC i m sure that tiny supply has at less 6A of current becoming from mosfet 😁

@franciscoresendiz86 Жыл бұрын

@@andrew_koala2974 Here in mexico, cuurent and amps is the same, but tank, y saludos

@RajendraVermaa 3 жыл бұрын

Without a proper DC load tester how can you determine the current load?

@douglasf.santos823 3 жыл бұрын

Um super like 🇧🇷

@TechnicalidEas07 3 жыл бұрын

❤️❤️👍🏻

@besmartIbrahimsultan29 3 жыл бұрын

🙂🙋‍♂️👍👏

@indianindustryelectronic5980 3 жыл бұрын

Hello

@4211Rob 3 жыл бұрын

put tape on motor shaft to see speed change

@ammardz1340 3 жыл бұрын

good

@ahmedelnopy9353 3 жыл бұрын

Great job.. So how about AH.. 🙏🏾

@anilkumaranil7596 3 жыл бұрын

👍👍👍👍👏👏👏👏

@florichest8404 8 ай бұрын

How long can it sustain power with some components over heating.

@choimdachoim9491 3 жыл бұрын

At the moment I'm using 12 different voltage adaptors...your Pot needs to be lockable to be practical. Bumping that knob could be ruinous.

@samiam4026 3 жыл бұрын

if you use solder wick it will be more easy for you to remove those

@johnrhodes3350 2 жыл бұрын

I think cost is a major issue. Even to the extent of preserving old solder. But being 'tight' maybe just an asian thing 😉

@popcoron11 Жыл бұрын

このビデオは良いかもしれない。丁度、アダプターが余っているので作り替えれば電源代わりに使えるかも。

@ahmedelnopy9353 3 жыл бұрын

Great job sir.. I didn't have any idea about that technique.. My question is so how about the amper ? 🙏🏾

@Inertia888 3 жыл бұрын

3:44 I am seeing a lot of questions about a higher voltage. it says to put a lower resistance in place of the 2.2k ( I have not tested it yet, it's just what says in the video )