LM317 adjustable voltage regulator 0-30v 30A

$2 for 2-Layer PCBs & $5 for 4-Layer PCBs: jlcpcb.com/PCH
lm317 adjustable voltage regulator 0-30v 30A
In this video I'm showing how to make simple and high power adjustable voltage regulator using lm317 with high output current.
As lm317 has max output 1.5A but here I used PNP power transistors to Bypass the current directly from input and voltage is managed by lm317.
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[@CreativeTechos]

👉$2 for 2-Layer PCBs & $5 for 4-Layer PCBs: jlcpcb.com/PCH 👉Download circuit diagram+ PCB Files drive.google.com/drive/folders/13-MbTq5PcYvrGDUm_iitdB3GNEnYA5sI

[@Edisson.]

You have a mistake there, parallel-paired transistors must have balance resistors, if they are not there, one of the transistors will be overloaded - they are not made with exactly the same values. Nice day 🙂 Tom

[@venkataswamyg4151]

Out put load is 30a ,for that you have to solder atleast 4 sq mm wire ,for loading 30a you have use common salt in plastic container,small motor consume less power.

[@udonpraguypanya2992]

Very simple working circuit

[@CreativeTechos]

Thanks for watching my friend 🙂

[@bvegass]

Good video It would be good to put a meter not only voltage but amperes consumed.

[@CreativeTechos]

Thanks for watching 🙂, Yes you can use 2 in 1 volt/amp meter to display amps consuming, also you can add more transistors in parallel to drive higher amp load, but output amps will be same as supplied to input

[@bvegass]

@@CreativeTechos Ok my friend. I'm a novice in electronics 🙂 I don't think I know how to connect the 2 in 1 If at some point you do it on video, I'll keep an eye out.

[@Baedlowi-qt2to]

mantaaaaap..........tp coba bikin rangkaian charger accu otomatis

[@CreativeTechos]

Didn't got it, please English

[@corsa5800]

1. What is the minimum input voltage? 2. Is it really possible to regulate from 0 V at the output? 3. What is the min/max efficiency?

[@Jonathan-bl5zv]

I know this is a old video, so hope I might get a answer. Where would you wire a amp meter into the circuit? Could you add another potentiometer somewhere to control the output amps?

[@muhammetcelik5007]

Hello.I want to answer to your question. Will you give me your instagram?

[@VEERsciencePROJECT]

Nice work bro 👏

[@CreativeTechos]

Thanks for watching my friend 🙂

[@emanikebiz]

QUE PROLIJIDAD. EXCELENTE

[@CreativeTechos]

Thanks for watching my friend 🙂

[@tatangkuswandaru8024]

Thanks

[@ramoncaceres2960]

En el video y titulo dices de un Integrado LM317, el diagrama a descargar es un IC 555. Donde esta el error?

[@imtiaztechnical9591]

Vire naic video

[@reza-bw1lg]

Very good my friend

[@CreativeTechos]

Thanks for watching 🙂

[@francescobritti2119]

Per funzionare funziona, ma mi sembra un circuito molto scarno privo di alcuni piccoli accorgimenti che reputo essenziali per una buona regolazione e stabilizzazione, tipo: diodo sul regolatore, un paio di grossi condensatori elettrolitici in entrata e uscita, resistenze di stabilizzazione, una su ogni emettitore dei TR di potenza.

[@Edmorbus]

Thanks for sharing

[@CreativeTechos]

My pleasure, Thanks for watching 🙂

[@colinattwell5544]

Ok, good. But what about adding a current limiter, say to adjust max current from ~1A up to 30A.

[@androidgates6789]

I have a 40-volt source that I want to reduce. Is there any component in this tutorial that I should change to adapt the solution to a 40-volt source?

[@CreativeTechos]

You can check another regulator video on my channel that supports upto 60v dc

[@somss2442]

Could you please make a video about 4v led dimmer circuit using potentiometet

[@CreativeTechos]

Yes, sure I'll try to upload ASAP, Thanks for watching 🙂

[@RixtronixLAB]

Nice video, thanks :)

[@CreativeTechos]

My pleasure, Thanks for watching my friend 🙂

[@johnhopkins6260]

30V, 30A?? 900Watts??

[@mrigankasinha1454]

Very nice 👍🌷 Q can I use the display took from an induction cook top (as salvaged item) Q2what is the voltage you connect in I/p

[@CreativeTechos]

Input can be used max 30v, No cooktop display will not work, This is not only display this is volt metre.

[@mrigankasinha1454]

Many thanks bro, God bless you for more innovative projects 👍👍💓💓💓

[@CreativeTechos]

Thanks for watching 🙂

[@TheWeepingCorpse]

You need $1 for voltmeter.

[@mlwasubramanian4905]

What about Current measurement? How do you say 30 A.

[@CreativeTechos]

This circuit doesn't boost current to 30A, But it will control load of 20-30A, when input supply used is also supplying 30A, you can add more transistors for more Amps load control.

[@Mproduction854]

hi sir please make MOSFET using adjustable power supply and ampere or voltage adjustable shakeit make thank you and like

[@CreativeTechos]

I'll also make MOSFET based very soon, Thanks for your interest.

[@leopoldofernandezjr.508]

Maybe the Amp is small bec of this ic Lm317.. this ic has very little amp.. just asking sir.

[@CreativeTechos]

Thanks for your comment, Then i should only have used lm317, why MJE2955 is used, Actually in this circuit lm317 only controls voltage, But PNP Transistor bypasses the current directly same as input, you can use more transistors in parallel to increase the output power handling.

[@rolfmader2783]

Heatsink very small! Max. 4...8 A

[@CreativeTechos]

Yes, used for just testing, For Long Term Please use big heat sink with cooling fan, Also you may connect more transistors in parallel to increase out put power. Output power will be same as supplied at input.

[@jordisau2386]

El circuito no coincide con la descripción.no consigo entender como el lm317 regula el voltaje solo te pido que revises el circuito que lleva 2. MJE 2955

[@francoarias9074]

Este circuito no esta probado con 30 amper. Me gustaria que de verdad muestre que entrega 30 amper !

[@user-hv1nb5br5l]

Can I use this as a battery charger?

[@CreativeTechos]

Yes, absolutely you can

[@ssangnomsekki4413]

항상 멋지다.

[@CreativeTechos]

Thanks for watching 🙂

[@benmahne3061]

Why you don't have the circuit diagram for the LM317

[@CreativeTechos]

D o you need circuit diagram for only using lm317?

[@jacielrj]

Nice👏

[@CreativeTechos]

Thanks for watching 🙂

[@skilledhiko329]

Friend this can replace a 300w 30v rheostat ?

[@michellevesquecouillard8894]

how do i get the pc board with all the component and how much does it cost me?

[@CreativeTechos]

I can provide only within my country, you may order pcb using my Gerber files or use layout files to make diy pcb, also you can use Vero board (zero pcb) by following circuit diagram, components may be sourced in local electronic market.

[@marox3G]

Greeting! Good video! Can you do it with 30 A with a V and A adjustable?

[@CreativeTechos]

Made that already, please check out my other videos, you'll find that

[@marox3G]

I found up to 10A adjustable! I watch your videos all the time! I can't find it, please name it! Thank you

[@marox3G]

I got all the parts for that video 30V and 10A and I will try to make it!!! Would it be able to draw 5V and 8A without overheating and shutting down?

[@CreativeTechos]

It will generate heat at low voltages as this is basic circuit without PWM control!

[@shinjitsumasayoshi9072]

Kindly help with a symmetrical version of 0-30v 30A please. +VCC -VCC and GND

[@bhabeshkumarshaw7853]

Input voltage 22v 10ampr.......????

[@umeshking3974]

Sir aap 12v rgb controller ir remote banao

[@CreativeTechos]

The RGB leds controller can be made easily using minimal components, but with ir remote function for colour effect, than a micro controller like Arduino should be there

[@darmakiss4829]

hello can you make a special board 60v 40amp for me ill purchase it thanks

[@mharbuensuceso7340]

where did you get your input supply you dont show it why did you not show it ?

[@CreativeTechos]

You need to use rectified dc supply for input, In video i used 30v SMPS as input

[@nisrabkhan2105]

Kya hm is se battery charge kr skty hn

[@CreativeTechos]

Yes, absolutely you can charge batteries.

[@khakirukaya4574]

👍👍👍

[@CreativeTechos]

Thanks for watching 🙂

[@sgtfguntur3990]

30V input voltage what ? AC or DC

[@CreativeTechos]

30v max DC

[@agrisziemelis122]

How to get 0v it starts from 1.2

[@bledinam1]

Hello, what is the value of the diode on the pcb? THANKS.

[@AURELIOMOREIRAam1960]

Muito bom, parabéns. Qual seria voltagem de entrada.

[@EvilChamber]

good but ampere not shown

[@CreativeTechos]

Yes, i actually used mini volt meter, you can use 2 in 1 volt/amp meter, You can use more transistors in parallel to make this circuit to handle higher current.

[@giorgikurtanidze222]

30A ? impossible for linear regulator! especially when vin/vout is large!

[@CreativeTechos]

Lm317 is only 1.5A, that's what 2x MJE2955 PNP Transistor do, They Bypass current directly from input, and output voltage only is maintained by lm317

[@gilmarcesarporfirio4096]

Nunca vai manobrar 30 amperes se fosse o tip 36C ai sim superaria inclusive 30A com folga

[@donisavsa7553]

30 Ampere..! No Maximal 1,5 Ampere

[@CreativeTechos]

Yes, lm317 is rated maximum 1.5A, but in this circuit lm317 only controls voltage, But PNP Transistor bypasses the current directly same as input maximum 30A as rated for 2x MJE2955, You can connect more transistors in parallel to increase power rating.

[@davestorm6718]

@@CreativeTechos - not according to the datasheet. Your limit is 10A each MJE2955 - combined for 20A max. circuits-diy.com/wp-content/uploads/2021/04/MJE2955T.pdf

[@imnotbeluga007]

The LM317 has an internal transistor through which current is normally flowing. But in this case, it only serves as an transistor array. The high current flows through the big power transistor.

[@ckgconcept8672]

il n’y a pas de générateur PWM dans votre montage ça ne peux pas marcher véritablement …c’est bidon votre montage !! 😂

[@yuriiradio]

How about a short circuit at the output?

[@CreativeTechos]

As it is basic and simple circuit, so output has actually not any short circuit protection, you can add it

[@bandungteknik62]

Apa bisa untuk ampere dibuat adjust juga seperti voltase?

[@CreativeTechos]

Sorry can you please try to comment in English?

[@bernardwatson8116]

@@CreativeTechos Can the amperage be adjusted as well as the voltage?

[@gochamiqava1853]

3 lm 317 =4,5 amp

[@CreativeTechos]

Yes, but here lm317 is only controlling voltage, current is bypassed by transistor and gives same output current as input, maximum depends on transistors current rating.

[@motta3838]

💎🙏👍

[@CreativeTechos]

Thanks for watching 🙂

[@SOLOELECTRONICANET]

😮 50A!! el autor se ha equivocado son 100A 😅

[@saroammu6516]

Inputs dc voltage eavlo kudukalam.....

[@malargroupvasu]

Sir push button dimmer circute with led range bare kindly update

[@CreativeTechos]

I already have uploaded push button led brightness control video on my channel, you may check that out.

[@2REANIMATOR]

Еб@ть мои старые валенки - где ты был с этой схемой раньше?

[@nsbusgamer7449]

Cost kiti aahe

[@minguinsantos5903]

Falta la conexion de los colectores de los transistores

[@cesarmanplace5699]

En ese tipo de transistor el pin del centro esta conectado con el disipador del transistor, el tornillo que conecto al disipador de metal hiso puente a los transistores osea al positivo de salida

[@minguinsantos5903]

@@cesarmanplace5699 GRACIAS..PERO ME DI CUENTA DE ESO.MUCHAS GRACIAS

[@theGolpojotbyTuhin]

you didnt measure amp

[@CreativeTechos]

But it can handle higher current as mosfets are intended for higher current, and voltage will be controlled by lm317

[@theGolpojotbyTuhin]

Still you should have shown that, how. Some of us are armature here

[@sricrackers9785]

317 max amp out put 1.5

[@CreativeTechos]

Yes, here these transistors acts as current booster, so that it will get High output current.

[@sriumeshsandala7674]

Sir, Can I get 5A output by giving input from 12V, 2A transformer (Rectified to DC) from the above circuit? Please

[@johnhopkins6260]

30 Ampere??

[@davestorm6718]

20 A , tops (with transistors shown)

[@JitendraKumar-yt5zr]

First view maine kiya

[@Mproduction854]

no bro iam fast ok!!!!

[@CreativeTechos]

Thankyou so much for your interest.

[@7276556536]

Interested in your design pcb to order. Pl send link

[@CreativeTechos]

Check back tomorrow link will be updated in description for PCB Layout & PCB Gerber also circuit diagram.

[@ranaroy2040]

What is the input voltage?

[@CreativeTechos]

Input voltage can be 30v max

[@andreyivanov7649]

писец. 12в на выходе, подключил небольшую нагрузку напряжение почти 1в просело. это не блок питания а говно.

[@user-nv1mk9jl2p]

Врун от 1в до 23в и наврятли 30а выдержит

[@user-ho2bv4he5e]

А где 30ампер? максимум 5!