How to make LM317 variable DC Power Supply with circuit diagram

Рет қаралды 63,233

Күн бұрын

In this LM317 project, I have shown how to make LM317 variable DC Power Supply with the complete circuit diagram. I have made the LM 317 circuit on the zero PCB and also share the PCB layout so that you can easily design this adjustable power supply using the LM317 voltage regulator and Transformer.
Download and print the PCB layout on the A4 page from:
easyelectronic...
You can use this circuit as a lab power supply, motor speed controller, LED dimmer, etc
Required Components for adjustable power supply:
1. LM317 IC amzn.to/3hyP7Ba
2. 1000uF DC Capacitors (2no)
3. 10uF DC Capacitor (1no)
4. 100nF Ceramic Capacitors (2no)
5. 1N4007 Diodes (6no)
6. 5 mm LED (1.5V)
7. 220-ohm Resistor (1no)
8. 1k Resistor (1no)
9. 5k Potentiometer (1no)
10. DC voltmeter (optional) amzn.to/3kogZJX
11. Heatsink
12. Connectors
13. Zero PCB
14. Stepdown Transformer. (12V-40V) 1.5Amp amzn.to/2Rywtig
Current and Voltage Limit of this LM317 circuit: 0-40V and 0-1.5Amps.
For more details on LM317 please refer the following video:
• How to make Adjustable...
During the LM317 tutorial video, I have shown all the steps for making this DIY simple variable dc power supply.
Always take proper safety precautions while connecting the circuit with the 220V AC supply.
If you face any issue please let me know in the comment section.
------------------------------------------------------
Thanks For Watching...
✅ SUBSCRIBE ✅LIKE ✅SHARE ✅ COMMENTS
Website: easyelectronic...
Facebook: / techstudycell
Instagram: / techstudycell
Telegram: t.me/techstudy...
-------------------------------------------------------
#LM317
Other useful videos:
How to connect LED with 220V AC circuit (with Calculations)
• How to connect LED wit...
How to calculate resistor value for LEDs in circuit @9V and 12V
• How to select resistor...
How to read Ceramic Capacitor value from Capacitor code
• How to read Ceramic Ca...

Пікірлер: 88

@sahilmangla8548 2 жыл бұрын

Thanks for this video dude... Literally saved my group's project at IIT Ropar

@cicadazapnell9645 2 жыл бұрын

So what is it about did you all three coordinate to post the same answer.

@malachiblake2878 3 ай бұрын

Do you know the wattage of the resistor?

@nitishyamsukha 2 жыл бұрын

Thanks for this video dude… Literally saved my group’s project at IIT Ropar

@sarvesh545 2 жыл бұрын

🤣🤣

@Sumitkumar-wh7pu 2 жыл бұрын

+😅

@cicadazapnell9645 2 жыл бұрын

It's really odd to find a predecessor in such a place. Unsure whether to be happy or embarrassed 😌.

@delrstudio.2252 3 жыл бұрын

My special thx to you cause, your channel is complete with Gerber file, layouts ,diagrams , so on. Thank you very much I am from SRILANKA.

@rhys_walker1333 2 жыл бұрын

Thanks for this video dude... Literally saved my group's project at IIT ROPAR

@Dr.GamerPro 2 жыл бұрын

can you tell me how to give connection

@kitronix 3 жыл бұрын

Very nice video bro I am planning to make this for my channel 👍👍

@nareshassaithambi2390 3 жыл бұрын

Hai hero u r great man...

@beastscientist 3 жыл бұрын

Wah g kia dilog mara apnie

@electronic7979 3 жыл бұрын

Nice project

@TechStudyCell 3 жыл бұрын

Thanks

@suryav831 3 жыл бұрын

Very nice and useful bro Upload to ECE project work videos bro Your lovely surya 😘🙏

@SethKaine 2 жыл бұрын

Instant subscribe. All in this video is good to me. I also have a tech channel on YT and hope to make one of this one day. thanks

@whiterosemid 3 жыл бұрын

Love the circuit thanks.

@cicadazapnell9645 2 жыл бұрын

And I just realised that just like me - all my batchmates out on YT hunting answers just one day before submission.

@balachandar6469 2 жыл бұрын

Hi i am trying this circuit but it's not working please help me find out what is the problem

@garciaemas6556 2 ай бұрын

Hii i did this circuit but im just getting a 12.6mA whats the problem this is what i used 6 diodes like in the video Lm317t 2x 1000uf 50v 10uf 50v Ceramic capacitor 0.1uf 100r resistor(i change it because the voltage im getting is too low like 8v) 100k resistor Step down Transformer 12v 2A

@BNShortscreator Ай бұрын

Brother, I have made a voltage regulator circuit like this, but its potentiometer is burning when the voltage is made low and high. What is the problem with this? Please tell me a little.

@viswanathancr349 3 жыл бұрын

nice video

@TechStudyCell 3 жыл бұрын

Thanks

@rap509technology 3 жыл бұрын

Nice work bro. How can l realize an inveter that has 3000 watts as power please?

@ibrahim-bi-lab 3 жыл бұрын

exellent veri qood👍👍🇦🇿🇦🇿🇦🇿

@TechStudyCell 3 жыл бұрын

Thanks

@sheikhtech6315 Жыл бұрын

It's not working!😭 Can you please help me with this after giving the input display is not showing anything and the led is also not working and there is ac output on both of the terminal can anyone help me with thiss

@mrunmaikokate3383 10 ай бұрын

How to make +17/-17 power supply ckt using LM317? Plz help

@amitghosh6966 2 жыл бұрын

A 1 Amp transformer won't give 1.5 Amp but maximum 700 mA. A this heatsink you used is very small to dissipate high heat when voltage difference is higher and load current upto 1 Amp

@elsayedelsh3rawy772 8 ай бұрын

Hello my friend What should I do if I have 12.0.12 volt transformer 10amp

@theDaftman 2 жыл бұрын

did you know the some Pritt Stick are conductive even when dry. (Don't ask how i know)

@user-vo2pd4py2f 7 ай бұрын

Have you come to the 15 amp circuit?

@matpigaming1913 6 ай бұрын

Saya telah melakukan sesuai dengan video tetapi saat tes uji coba dioda 1 terbakar dan meledak? Bisa kah anda menjelaskan kenapa itu terjadi pak

@antoniovillegas9077 2 жыл бұрын

Hi Tech StudyCell. I hope you are doing it super well. This video is perfect for me. Thank you so much for help us with it. I have a question about how much current does this power supply give? I have been trying with 2 fans of 12v and 220mA each one, and it does not work with them. The current goes down over 120mA, and the circuit converts into a lm317 without the regulation resistors we the fans are connected. Thank you.

@abiadhimoolam1391 Жыл бұрын

One component are missing sir. Voltmeter insert component. What is the component name sir

@k_a_v_i__1850 Жыл бұрын

Brother, Can I use this same circuit for a 0-9v DC supply With a 230v - 9v stepdown transformer?

@balachandar6469 2 жыл бұрын

What voltage can I give Input voltage

@TechStudyCell 2 жыл бұрын

I have used step down transformer. Secondary voltage 15V AC.

@norlitoveterbo3398 Жыл бұрын

Hello could you share with us the schematic diagram of this?

@balachandar6469 2 жыл бұрын

Where can buy 100 nf capaciter things

@SajiVlogsSL 3 жыл бұрын

what is the maximum voltage that we can input ?

@mathewprabhath1045 2 жыл бұрын

How are you getting around 17v while using 15v step down transformer

@ictsmjr491 2 жыл бұрын

The circuit diagram of this power supply is confusing & also its not working

@amitghosh6966 2 жыл бұрын

Where's the circuit diagram ?

@Anonymous-nc2jq 7 ай бұрын

Sir can we use a transformer of 0-30 v for the same circuit

@Anonymous-nc2jq 7 ай бұрын

And can we use 5 amp transformer for the same circuit Will it work perfectly or will make burning

@mohammedahteshamshaikh 2 жыл бұрын

Is this a dual power supply??? Please reply

@Jaspreetsingh-nq7vi 2 жыл бұрын

Maximum voltage in or out

@phoepwarcsa8594 2 жыл бұрын

can i adjust ampere ?

@balachandar6469 2 жыл бұрын

Can i replace tha 100nf ceramic capacitor with the 0.1uf ceramic capacitor sir

@TechStudyCell 2 жыл бұрын

yes

@jenntek.101 Жыл бұрын

Sir, the 1000uF DC Capacitors are you using 35v or 50v?

@TechStudyCell Жыл бұрын

you can use any volt above 25V.

@usmanriaz8396 3 жыл бұрын

current stays 1.5 at all voltages ?

@beastscientist 3 жыл бұрын

1.5v is the maximum rating for the transistor .. the out would be also the 1.5v but remember to put a bigger heat sink

@roalexmediaproductions673 2 жыл бұрын

This circuit is not working 😕

@nesaranwar4468 Жыл бұрын

Bhai dgtal mitar Kahan milega

@toohsynsyyn3572 Жыл бұрын

Sir diagram send me plz

@godsowncreator1994 3 жыл бұрын

Bro can u make it without pcb board. Plz.

@TechStudyCell 3 жыл бұрын

YES. but there is high chance of short circuit. And here I have used zero pcb which is easily available.

@rushikantkatre1774 5 ай бұрын

Bhai diagram glt bataya

@SanchitaPramanik-r9f 12 күн бұрын

Total cost ??

@SanchitaPramanik-r9f 12 күн бұрын

Total cost kitna huya ??

@user-ub9ff5gu1l Жыл бұрын

What happens if i use 10 k potentiometer?

@kennmossman8701 3 жыл бұрын

need a 2 Amp transformer to get 1.5A output

@TechStudyCell 3 жыл бұрын

As the max current rating of LM317 is 1.5 Amp, so I will not recommend 2 amp transformer.

@kennmossman8701 3 жыл бұрын

@@TechStudyCell Why? I think you are forgetting the current utilization factor. You don't get 1.5A from a transformer rated at 1.5A at the rated voltage after rectification. Besides that running any component at max isn't recommended. One can safely use a 3A transformer but using an under-rated transformer is a bad idea.

@bravopapas4386 3 жыл бұрын

Why don't you use lm317t, which is up to 5a

@kennmossman8701 3 жыл бұрын

@@bravopapas4386 LM317T: 3-Terminal 1.5 A Positive Adjustable Voltage Regulator Datasheet: 3-Terminal Positive Adjustable Regulator This monolithic integrated circuit is an adjustable 3-terminal positive voltage regulator designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 V to 37 V. It employs internal current limiting, thermal shut-down and safe area compensation.

@muralikrishna1504 3 жыл бұрын

@@kennmossman8701 can you explain why he has used 2 capacitor in input and 3 in output.isnt one each in input and output enough?

@balachandar6469 2 жыл бұрын

Please reply