DIY - convert laptop power adapter into variable supply l 5 volts to 35 volts

hello guys!!
this is my first video
in this video i am going to show you how to change output voltage of laptop power adapter ll it can give 5 volts to 35 volts output
remove two feedback resistors in that place connect potential meter, you can find feedback resistors near the ic M101AC
don't forget to change the output capacitors
THANK YOU!!!
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[@nappjoloya2579]

great info sir ,,it's really helpful ,,more power to you sir !

[@turbolink2339]

thanku

[@squidscrew1339]

I have difficulty in finding feedback resistor. How to identify a feedback resistor from any circuit ?

[@alia1769]

Thanks man, now it's simple and easy to make an adjustable adaptor with no cost

[@SamerM.ElMeligy]

Amazing man Thanks too much for the great video ❤❤❤

[@TheKoodus]

Hey man thank you very much for this video!! I think it is too ambitious for me at the moment as I am just starting to understand some basics in electronics, but I might well try it as I have a laptop PSU available. I wondered, would it be easy or just possible even, to have a variable current as well as variable voltage, or is that asking too much?? thanks again and well done on your first video!! Just so you know, for people in my situation, any extra explanation/commentary you can give as to how you look for solutions, things to be careful of, your logic and thinking when you do something like this etc....all of that stuff is very helpful!

[@TotoAiProduction]

can you increase the amperage? which part should be replaced

[@AoneAJ]

i want to try this I had a lenovo laptop charger but i can't understand help me plz

[@stanleyjang4015]

The image quality is not good... I am trying to copy it, but I can't see where it connects after removing the resistance

[@JPAG0806]

👍👍but: How to open such a sealed housing without damaging......

[@douglasgranados5571]

lo felisito amigo dsd Vnzla douglas muy buena idea

[@usahapetani9743]

8:40 your hand too close to ac input. careful man. kept it up

[@usahapetani9743]

@Nirmal Kishore left hand. power suply adapter under their hand

[@usahapetani9743]

@Nirmal Kishore hahaha. 400v capacitor can give you sweet dream🤣🤣

[@usahapetani9743]

@Nirmal Kishore nice too meet you my friend

[@mbnaso2699]

What kind of gloves are those? Are they like low voltage gloves. Nubie question

[@nestorasuncion1226]

You took out 2 caps of 25v each and replaced with one 35v. What happened to the 2 open terminals?

[@allcomm]

No problem. They are connected in paralel - not in serial.

[@brsgaming6543]

I have 12v carger can i change its output to 20 or 25 volts

[@Electricquantism402]

How to find feedback resistor?. In my case there is no tl431.. How to make it variable?

[@payeldas318]

I have a SMPS adapter, it's out put voltage not stable, flickering voltage o/p , please say what can I do?

[@tuanvu9478]

Thank you!

[@murielleveneranda7570]

What's that liquid thing you used when removing feedback resistors?

[@agila72exile]

It's just soldering paste flux for SMD in a syringe, RMA-223 type.

[@rockking6146]

Nice bro

[@puakegawak6334]

does the amperage value decrease. if the volt is increased the voltage

[@fathimahelmineop7770]

We will give 50 volt capacitor then its voltage will incrase to 50 volt please reply me bro

[@smoke_stackz3168]

The higher the resiatance the voltage goes down or up?

[@turbolink2339]

Up

[@averagedude-b7m]

nice

[@ihtsarl9115]

where is feedback R on the circuit diagram can you show diagram

[@alexandrekatshiza]

hi , i wanted to modify a hp laptop charger. it is using 103IAW Ic, i have difficulties to find feedback resistors. assist please !

[@turbolink2339]

See the ic datasheet

[@RRratan]

Don't increase high voltage out put your adaptor life no more

[@alainsanz1591]

El video ubiese sido mas completo si explica mejor lo que hizo y de donde conectó el potenciómetro. Apenas pude ver nada.

[@UrsKarthikHere]

Video quality bhale vundhi DSLR kada

[@darshitmathur145]

What if i change the capacitors only? Will it give 35v ?

[@someone2506]

Sorry, your question can only be answered by : Dont try or touch anything, learn the basics first - especially when the subject is mains power adapters.

[@zenvir1680]

@@someone2506 Hahaha nice answer

[@zenvir1680]

No, you need to change the feedback resistors on the first place, and as he mentioned any capacitor rated for 35V or higher will work

[@turbolink2339]

no

[@aurisfpv3201]

what amperage would we get?

[@fathimahelmineop7770]

Bro do 24 volt to 35 volt

[@technokhan7429]

u removed both feedback resistors which leaves 4 terminals behinds. where did you connect 2 wires of potentiometeR?

[@turbolink2339]

2 feedback resistors are in series

[@technokhan7429]

How to find these resistor?

[@smoke_stackz3168]

@@technokhan7429 connected to tl431 reference pin to +

[@ihtsarl9115]

please write something or talk what are you doing ?

[@MsAxelfoly]

where is schema ???

[@chriswebb4162]

An unclear video, no schematic and some awful soldering on the pot'. Not really helpful.

[@Snmahaur]

I need 48 voltage so please tell me solution.

[@turbolink2339]

Use transformer or series battery pack

[@turbolink2339]

Use transformer or series battery pack

[@lynxsana4935]

how to find out the feedback resistor My adaptor : ibb.co/RYPC3d7 ibb.co/dDbZDVL

[@Wishme85]

I have modified my charger, but voltages are not regulating. Please let me know If you have any whatsapp number , so i'll send you the pics of project.