0-30v 0-10A variable power supply Adjustable voltage and current

[@CreativeTechos]

PCB Files & Circuit diagram download link in video description

[@adeyemibabatunde1814]

What can be done to make it constant voltage. When the bulb was connected, the voltage dropped

[@CreativeTechos]

To make it constant we need to add feedback so that it will sense drop and add that dropped voltage to make it constant. For that different circuit need based on UC3843 ic. I'll soon upload that variable power supply too, stay updated. Thanks 😊

[@adeyemibabatunde1814]

@@CreativeTechos kindly upload and inform us

[@CreativeTechos]

I'll upload ASAP, turn on notification to get notified

[@antoniopatricioreyescalder1337]

@@adeyemibabatunde1814 d. Bvjj bb a mi aa

[@madhavsastry4324]

Excellent 👍 I assembled a circuit with LM317 in 1992 (I remember ) . But it is not this versatile. It is a hobby circuit. No current amplifier. Now, I will assemble this circuit. Thank you very much 👍

[@milodoesgaming1203]

Finally a clear explanation thank you so much

[@kaarshe141]

Thanks for your sharing your knowledge

[@CreativeTechos]

My pleasure 🙂

[@skidkev6421]

Nice simple and very small PCB design. I will definitely copy your design. Thanks for sharing.

[@CreativeTechos]

Thanks for watching my friend 🙂

[@grzesiekxitami3264]

it would be more interesting to talk about how it doesn't work. 1.no current limitation 2.no feedback but, sometimes it's a nice deal

[@muhammetcelik5007]

Can you give me an information this topic?

[@JLCPCB]

Excellent project! 😄

[@CreativeTechos]

Thanks, please reply my mail

[@JLCPCB]

@@CreativeTechos please could you let us know to which mail you send the message? 🙂

[@CreativeTechos]

Thanks it was already replied 👍

[@faisal5370526]

Good sharing information video 👉❤❤🌹🌹🔔🔔

[@CreativeTechos]

Thanks 😊

[@maneshmurali9087]

Simple and verry useful. Tks👌🏻

[@CreativeTechos]

Thanks for watching my friend 🙂

[@tyronearendse1722]

Hi friend thanks for the informative video, I will certainly try this project

[@CreativeTechos]

My pleasure Thanks for watching 😀

[@danielugwa6517]

may almighty chiukwuokikeabiama bless you. you are wonderful thank you

[@CreativeTechos]

Thankyou so much 🙂

[@raynerstuelgalid]

Thanks for the teaching. In amplifier building, the board needs a +/- rails, say 30DCV. I am looking for a bench adjustable/variable switching PSU to be used for various amplifier boards (that needs different +/- DCV). Question: What kind of description/specification do I look for in a commercial product? Thanks.

[@taikong7952]

Thank you. It would be better for everyone if you leave the electrical diagram square with the screen for everyone to take pictures to learn

[@khaluong8041]

Wow AMZ very good ❤.Thanks much

[@CreativeTechos]

Most welcome 😊 Thanks for watching 👍

[@kohLeeDjocdja]

input 40V 5A ?... can or not ?....

[@CreativeTechos]

No, 30v Max with 5- 10A

[@kohLeeDjocdja]

@@CreativeTechos omg....i need to lower the voltage from 40V to 24 Volt. Hopefully 7824 can solve my problem.

[@CreativeTechos]

7824 voltage regulator is max rated to 40v input but it should be at 35v max, so that regulator will not blow up. And max output current is rated at 1.5A. I'll soon upload voltage regulator circuit with higher output current and with 55v imax input using mosfet .

[@kohLeeDjocdja]

I will be waiting for your video as a guide, in the construction of a secret project of mine.

[@CreativeTechos]

👍

[@gabrielbezerra8618]

The diagram in description, and the board you build in the video are different..., you added in the download files the D13 (Diode) is he necessary ?

[@CreativeTechos]

The only difference is diode, yes diode is necessary for protection of lm317

[@gabrielbezerra8618]

@@CreativeTechos Thank You Friend...

[@CreativeTechos]

My pleasure 😊

[@koebilelectronik]

Thank you sirr 👍👍👍👍

[@CreativeTechos]

My pleasure 😊

[@katinukanalas]

could you make a vid on how to make some sort of short circut protection for it?

[@CreativeTechos]

Please check the video on my channel, i have already uploaded video for that

[@elprof101]

Can it limit current when a short circuit is occurred ?

[@redelectron8575]

Wow...its amazing project...Love it Thank you

[@CreativeTechos]

My pleasure 😊

[@veliborzivic4471]

The one 2N3055 is too little for 10A current.You need to use at least two same transistors.

[@CreativeTechos]

Yes, you can use 2x in parallel, each is 15A Rated, not 2N3055. It is TIP3055

[@jl3269]

@@CreativeTechos Dissipation can reach 300W in worst case. TIP3055 total power dissipation @ Tc=25°C is 90W (Derate above 25°C 0.72W/°C). 2N3055 total power dissipation @ Tc=25°C is 115W (Derate above 25°C 0.657W/°C).

[@sershetech5584]

Watching sir💯👍

[@CreativeTechos]

Thanks for watching 😊

[@VanNamNguyen247]

Very good

[@CreativeTechos]

Thanks for watching my friend 🙂

[@jesusynadamas4261]

In the video I can not see the arrangement of the cables in the pins of the second potentiometer. could you tell me Thank you

[@CreativeTechos]

Please refer to the circuit diagram, download link in video description. If still help need let me know

[@jesusynadamas4261]

@@CreativeTechos solo necesito que digas el color de los cables del pin 2 y el 3 del potenciometro que regula el voltaje. No creo que te cueste mucho trabajobhaverlo. En el diagrama no lo entiendo bien. Gracias

[@jesusynadamas4261]

@@CreativeTechos muchas gracias, tu ayuda ha sido muy gratificante

[@TeghTeghThaddeus]

Nice circuit

[@standamartinak3679]

What value must the potentiometers have, please?

[@CreativeTechos]

10k both, use multi turn for precise adjustment

[@glenngloria6250]

When I used 12v 1 ampere power supply, how to increase the final output current in your circuit ?

[@CreativeTechos]

Means you want to boost the current?

[@_kirkhernandez]

Do I need transformer for this project?

[@CreativeTechos]

If you have SMPS you can use that, otherwise ac needs to be converted to dc with transformer and bridge rectifier with filter capacitor, before connecting to this circuit

[@khakirukaya4574]

👍👍👍

[@CreativeTechos]

Thanks 🙂

[@pareshmhatre4019]

too good yaar! please explain BR connections!

[@pareshmhatre4019]

so its in series for current?

[@pareshmhatre4019]

reading?

[@CreativeTechos]

B R actually is Black & Red wire of current measuring meter.

[@azharbaihaqi2466]

If I use power supply 12v 30a what I should add? More transistors?

[@CreativeTechos]

Yes you need to use total 3x TIP3055

[@azharbaihaqi2466]

@@CreativeTechos thank you it means a lot

[@CreativeTechos]

My pleasure 😊

[@gaelchido5335]

very nice video, is there anyway to control de current by a electric signal and not by a potentiometer? its for a school proyect :)

[@hendrahermawan37]

If I use power supply 0-110 3A what I should add? More voltages regular??

[@CreativeTechos]

Actually voltage can't be raised above 30v as per datasheet ofain component lm317. You can increase amperage tolerance by adding more TIP3055 Transistors.

[@mscir]

Where do you get a 30V 10A affordable power supply for the input?

[@edwardbartie2848]

Very nice what will change if i want to increase current 40 A and voltage 28V

[@CreativeTechos]

That need different design using mosfets, I'll soon upload new project for this, subscribe to get notified

[@josephgough7620]

hello from australia. you took circuit boards out of a box plus parts, does this power supply come in a kit if so how much. this is a great project.many thanks well done,joseph

[@CreativeTechos]

Thanks for appreciating, actually i can provide kit only within my country, you may order pcb from jlcpcb and parts can be sourced in local electronic shop or online

[@antoniogonzalez-fh3wo]

Que bueno gracias

[@CreativeTechos]

Thanks for watching my friend 🙂

[@newscientificdiscoveries6228]

Why does the voltage decrease when the load is applied? Why does the voltage not stabilize when the current is changed?

[@iuriibaranov3091]

Привет из России! Хорошая работа

[@marox3G]

How can I get more A to 10 at 5V so that it can work continuously without logging in?

[@CreativeTechos]

Connect more TIP3055 transistors in parallel with big heatsink

[@TassyDeval]

Why does your parts list say 2x 1N4007 are required and your schematic shows 2 (1 to fan and other is between the 139 and the 317), yet the gerber board is only showing 1 (fan). Can you clarify please?

[@onecircuit-as]

Great circuit. Very useful! 👍😀

[@CreativeTechos]

Thanks 😊

[@glenngloria6250]

What to add here to stable the volts even if we adjust it to high Amper

[@CreativeTechos]

Actually this is the basic circuit, we need to make it with feedback to solve this issue, That can be achieved by adding pwm control ic with feedback. I'll soon upload that project also.

[@hassansalamah910]

How I can download the Gelber file?

[@CreativeTechos]

Open the link given in description, and you will be able to save file from g drive

[@rheynalcantara6848]

How about the transformer needed to supply the project, can you tell me the specs. Of trformer

[@CreativeTechos]

Use 30v 10A transformer with bridge rectifier to supply filtered dc to this circuit.

[@awaazmatroko5972]

Nicely done, I feel a good attempt, but needs improvement, have you noticed major the voltage drop cause of linear power type?

[@CreativeTechos]

Yes, actually it is simple basic circuit, to get constant output voltage feedback needs to be added

[@marox3G]

How much A could I get on the existing scheme at 5V so that it can work for a long time and not shut down?

[@CreativeTechos]

For driving higher Amps load for long time, add more transistors in Parallel, use big heatsink with cooling fan

[@MultiTechEducation4U]

WHAT FOR IS J7 & J9 IN SCHEMATIC. SHOULD HAVE BEEN MENTIONED AS FOR WHAT THESE JUMPERS ARE. I DO UNDERSTAND BUT WHAT ABOUT THE BEGINNERS?

[@CreativeTechos]

I recommend you to watch full video, J7 is connector for 5v dc & measuring dc line with volt/ ampere meter, also J9 is pass through to measure output load, And details appear in display of volt/ampere meter. WATCH FULL VIDEO

[@MultiTechEducation4U]

Okay, dear. May I missed some part. Will do so🙏

[@CreativeTechos]

👍

[@zwtsch]

can i swap 7805 with 7812? i only have 12v van

[@sokdolla]

Can i get 30A? By add 8 TIP3055 in parallel.

[@alguien0619]

hi, if i work with 1.5 A can i remove the TIP3055 ?

[@CreativeTechos]

Yes, you can use bd139 instead, if your load will be under 2-3A

[@alguien0619]

@@CreativeTechos thank you very much for answering me I will try to make my own adjustable power supply

[@CreativeTechos]

Best of luck 👍

[@fpisti35]

I bought 10 PCB and all listed parts for 10 regulators, but when I build it the R4 220 Ohm always burn out. I have tried 3 different resistors but all same. Do you have any idea why?

[@mobiletipstricks8503]

brooo Multiturn potentiometer 1k or 10k? please replyyy❤

[@CreativeTechos]

10k multi turn potentiometer

[@mobiletipstricks8503]

@@CreativeTechos broo my potentiometer burned why

[@shadowfighter7085]

Input voltage and amp?

[@CreativeTechos]

Max 30v and output variable

[@vitorbritesvitor903]

How do I get it to 0-50a?

[@tharakahasintha6646]

Hello bro can i input dc 40v ..i have only 35v transformer ..plz reply me

[@CreativeTechos]

The maximum input dc should be supplied 30v. You can use SMPS also

[@alaricace8118]

Can I use this circuit to recharge 12v batteries while controlling the amperage between 2ah to 6ah?

[@laertelima8672]

Excellent, but my interest is to use 127v alternating source for power, how to make this adaptation without transformer?

[@CreativeTechos]

You can use SMPS to convert ac to dc

[@laertelima8672]

@@CreativeTechos i find this circuit Convert 220v power to 3v-6v-9v-12v-24v-48v-98v-120v. DC driver without converter || Crystal Elec

[@CreativeTechos]

Didn't got you, please explain

[@danrichcarganilla7929]

the input can be 0 to 30v right need only 30v exactly?

[@CreativeTechos]

The input you can use fixed from 12v to 30v and output will be variable.

[@asishmaharana6467]

can we use 30V 10A transformer for input ?

[@CreativeTechos]

Yes, but use bridge rectifier and supply filtered dc to this circuit.

[@asishmaharana6467]

Thanks

[@CreativeTechos]

Yes you can use, and remember out put will be limited to 19v also.

[@asishmaharana6467]

Can I use a 19v adapter for input?

[@asishmaharana6467]

Thanks ♥️❤️

[@sativadarohith5873]

How to order pcb

[@Pilotfly2023]

Tks...

[@CreativeTechos]

Thanks for watching 🙂

[@rajumsuthar3940]

Can I give 24V 3A as a input?

[@cbdesign9155]

Can i use this circuit for 24 volt 25 amp

[@CreativeTechos]

No, 10A & 30v man input.

[@luisuwu7315]

Con cuantos voltios debo alimentar tu circuito.

[@e.a297]

Does Voltage drop at huge load or not?

[@CreativeTechos]

Drops just slightly

[@zolatanaffa87]

for sure! check the voltage on load in the video: it drop from 12,5 to 10V!!! at only half of the promised currrent!

[@mdsohanahmed4185]

Boss I make this circuit apm 0-10 ok but voltage not 0-30.(not work) please help.

[@CreativeTechos]

Make sure lm317 IC is worky, and follow circuit diagram download link in video description

[@nicvirgilcabalan8272]

Thanks bos

[@CreativeTechos]

My pleasure

[@petqu_861]

Value of potentiometers?

[@CreativeTechos]

10k both, multi turn recommended

[@Lifeless11111]

this is all great , but if you short the output or overload it it will blow up very fast. Also the current control doesnt really work well , you can see as soon as you hit the treshhold of that driving transistor it just turns on all the way to 3.8 amps

[@CreativeTechos]

Actually it is very basic circuit, without output short circuit protection

[@pradeepp.v6058]

Can replace TIP 3055 with Z44N MOSFET directly?

[@CreativeTechos]

I think yes, you can replace with irfz44n, still needs to be tested.

[@iainhogg5245]

Absolutely excellent, well done

[@CreativeTechos]

Thanks for appreciating.

[@noelpuklowski1118]

I cannot order the pcb’s it too fast and I cannot seem to slow it down

[@CreativeTechos]

I can deliver within India, if from other country just download Gerber files and order from jlcpcb.com, or download pcb PDF to make at home. Or make on zero pcb by following schematic. Download link given in video description.

[@alwatractionSeddiqi]

Thanks

[@meilanilutfiati3289]

Apakah bisa buat MBR???

[@marcosepe7595]

Sostituire il tip3055 con un irfp250n si può?

[@marcosepe7595]

Si potrebbe aggiungere un secondo TIP3055 in parallelo?

[@CreativeTechos]

Of course, that will further increase its current tolerance

[@advurfana5270]

Good

[@CreativeTechos]

Thanks 🙂

[@Mproduction854]

3055 this teansestor (NPN) (PNP) y???????

[@Mproduction854]

Pllis

[@CreativeTechos]

TIP3055 is bipolar NPN

[@Mproduction854]

@@CreativeTechos ok tanks

[@dinushachathuranga]

Can you upload full drawing for this. I wish to make it on dot board. ThankS..

[@CreativeTechos]

Related files download link in video description.

[@dinushachathuranga]

Thanks. I get that. But it's easily to understand drawing the circuit diagram with images of components and paths like your other videos. Any way you doing great job. Thanks you very much. 💪🙏❤️

[@CreativeTechos]

Thanks for appreciation, Thanks for watching.

[@meteorlift]

If I use 7805 instead of im317, my aim is to get a fixed 5 v, only to change the amp setting. is it possible

[@CreativeTechos]

No, lm317 is there to give reference voltage to transistor, so that it will draw same from input to output, lm317 is cheaper & easily available.

[@josed.moreno6838]

Thanks, excellent job

[@CreativeTechos]

Thanks for watching 🙂

[@martinvidic7493]

On shematic diagram you have 3 diodes (one led), where is d12 diode?

[@CreativeTechos]

Yes, actually one diode is added later and is for protection of lm317.

[@martinvidic7493]

It doesn't work😔

[@CreativeTechos]

What problem you actually face, is it not giving output?

[@martinvidic7493]

No output voltage,no signal on volt/amp meter

[@rajumsuthar3940]

How much is given input voltage and current ?

[@adarsh.vadarsh3693]

Hallo,bro by varying RV1 the output voltage is not varying it's 30v fixed what should I do?

[@gabrielakakporo9783]

What's the lowest input voltage current?

[@thenathayalanp8303]

Can i charge 3.7v l-ion battery using this

[@CreativeTechos]

Yes you can set 4.2 output voltage and lower down the current to 0, after connecting the battery slowly rise the current to, 0.5-0.7A and disconnect as soon as battery is full, as lithium ion battery should not be over charged, You can check out the video of 3.7v battery charger with autocut off after full. charge

[@pierrebladt4547]

Where can I find the digital volt/current meter used in this powersuply

[@CreativeTechos]

It will be easily available online or AliExpress search Digital volt Ampere meter (100v 10A)

[@bob2161]

I like this very much. However, I'm needing to also built a 30 volt 10amp power supply. Do you have a PCB for that?

[@CreativeTechos]

Yes, both gerber files, pdf layout and schematics download link in video description

[@bob2161]

@@CreativeTechos thank you 👍

[@CreativeTechos]

You're most welcome 👍

[@bob2161]

@@CreativeTechosHello, it is me again, with another question. Will this circuit work with a 24 volt input? I realize that the output would be limited to 24 volts as well. This is fine for my needs. Would I need to change any of the components to different values? If so, which ones? I have been given an old, transformer based, power converter. I would like to use it to power this circuit that you designed. It converts 110 volt mains AC to regulated 24 volt DC. It is rated for 10 Amps (8 Amps continous). There are no adjustments on this device. It did not work when I received it. One of the diodes in the bridge rectifier had failed. I replaced all four with larger higher rated diodes. I have tested it under various loads and the output holds a solid 24.2 volts, except for small, momentary, fluctuations when loads more than 5 Amps are first switched on. I am looking forward to your response.

[@CreativeTechos]

Yes you can use it, under 30v input can be used anywhere between 12-30v . Also you can use step down transformer with above 10A bridge rectifier with at least 2200 uf filter E-capacitor

[@dellodel9502]

Have you got 0V or under 1V in the OUTPUT ?

[@meteorlift]

İm317 yerine 7805 kullansam diğerlerini aynen kullansam, amacım sabit 5 v almak sadece amper ayarı değiştirebilmek. Mümkün mü ?

[@Mproduction854]

Potentiometer (ohm)and (k) u using?????

[@Mproduction854]

Pllis

[@Mproduction854]

You using potentiometer y kilo ohm

[@CreativeTechos]

Need to use 10 kilo ohms potentiometer

[@Mproduction854]

@@CreativeTechos tanks my frends excellent

[@CreativeTechos]

My pleasure 😊

[@manikde4482]

I am from kolkata, how can I buy the pcb?

[@CreativeTechos]

Message on whatsapp [phone]

[@vishwaspatil8862]

Can you give me a pcb

[@gopalkrishnapillaimr6592]

You have to log into JLCPCB and order the PCB and upload the files which the author had given in the link, and after the estimate is given, make payment.

[@Hudsonkem]

does this circuit is working inverse? less current and hight demand from the load is suppose to decrease the voltage no increase it (if you set low current, it will drop the voltage) '-', can someone correct me?

[@amplifiersaudiosystems8574]

It shows voltage drop as the circuit is without feedback & any regulation IC.

[@CreativeTechos]

Yes, since this is basic version & without feedback, I'll soon upload new version with feedback voltage stabilization

[@weskergamerz]

CAN I REPLACE TIP3055 TO 2N3055 I NEED ONLY 3 TO 5 AMP COZ. IN MY CITY TIP3055 NOT AVAILABLE

[@CreativeTechos]

Yes you can, and take note of pin outs during connection.

[@weskergamerz]

Thanks brother 😇

[@CreativeTechos]

My pleasure , 🙂

[@weskergamerz]

Brother bd139 not available in market can you tell me alternative

[@CreativeTechos]

Check out any NPN power transistor.

[@সৌরিশএরছোটোবেলারদুষ্টমিওখেলা]

Can I get this pcb from u

[@gnasser76]

Hello i want a circuit to generate adjustable 300v dc 16A with current limit . Willing to contribute if you can wriite the circuit

[@ابوضحكه-ث3ج]

Power bank circuit please

[@CreativeTechos]

OK, I will try to upload ASAP

[@darshanbabu1142]

Nice work, can you provide me the simulation file, so that I can simulate and make changes to the circuit according to my requirement

[@CreativeTechos]

That is not available rightnow, you can use the schematic diagram to prepare for that, You can download that files, link is in description.