How to make LM317 variable DC Power Supply with circuit diagram

Ғылым және технология

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:
easyelectronicsproject.com/mi...
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.
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Пікірлер: 86

  • @delrstudio.2252
    @delrstudio.22523 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.

  • @sahilmangla8548
    @sahilmangla85482 жыл бұрын

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

  • @cicadazapnell9645

    @cicadazapnell9645

    2 жыл бұрын

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

  • @malachiblake2878

    @malachiblake2878

    2 ай бұрын

    Do you know the wattage of the resistor?

  • @nitishyamsukha
    @nitishyamsukha2 жыл бұрын

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

  • @sarvesh545

    @sarvesh545

    2 жыл бұрын

    🤣🤣

  • @Sumitkumar-wh7pu

    @Sumitkumar-wh7pu

    2 жыл бұрын

    +😅

  • @cicadazapnell9645

    @cicadazapnell9645

    2 жыл бұрын

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

  • @rhys_walker1333
    @rhys_walker13332 жыл бұрын

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

  • @Dr.GamerPro

    @Dr.GamerPro

    Жыл бұрын

    can you tell me how to give connection

  • @whiterosemid
    @whiterosemid2 жыл бұрын

    Love the circuit thanks.

  • @kitronix
    @kitronix3 жыл бұрын

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

  • @nareshassaithambi2390
    @nareshassaithambi23903 жыл бұрын

    Hai hero u r great man...

  • @beastscientist

    @beastscientist

    3 жыл бұрын

    Wah g kia dilog mara apnie

  • @SethKaine
    @SethKaine2 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

  • @electronic7979
    @electronic79793 жыл бұрын

    Nice project

  • @TechStudyCell

    @TechStudyCell

    3 жыл бұрын

    Thanks

  • @antoniovillegas9077
    @antoniovillegas90772 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.

  • @suryav831
    @suryav8313 жыл бұрын

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

  • @rap509technology
    @rap509technology3 жыл бұрын

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

  • @SajiVlogsSL
    @SajiVlogsSL3 жыл бұрын

    what is the maximum voltage that we can input ?

  • @k_a_v_i__1850
    @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?

  • @user-vo2pd4py2f
    @user-vo2pd4py2f6 ай бұрын

    Have you come to the 15 amp circuit?

  • @mrunmaikokate3383
    @mrunmaikokate33839 ай бұрын

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

  • @mathewprabhath1045
    @mathewprabhath10452 жыл бұрын

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

  • @BNShortscreator
    @BNShortscreator5 күн 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.

  • @ibrahim-bi-lab
    @ibrahim-bi-lab3 жыл бұрын

    exellent veri qood👍👍🇦🇿🇦🇿🇦🇿

  • @TechStudyCell

    @TechStudyCell

    3 жыл бұрын

    Thanks

  • @balachandar6469
    @balachandar64692 жыл бұрын

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

  • @norlitoveterbo3398
    @norlitoveterbo3398 Жыл бұрын

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

  • @viswanathancr349
    @viswanathancr3493 жыл бұрын

    nice video

  • @TechStudyCell

    @TechStudyCell

    3 жыл бұрын

    Thanks

  • @balachandar6469
    @balachandar64692 жыл бұрын

    Where can buy 100 nf capaciter things

  • @theDaftman
    @theDaftman2 жыл бұрын

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

  • @elsayedelsh3rawy772
    @elsayedelsh3rawy7727 ай бұрын

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

  • @phoepwarcsa8594
    @phoepwarcsa85942 жыл бұрын

    can i adjust ampere ?

  • @Jaspreetsingh-nq7vi
    @Jaspreetsingh-nq7vi2 жыл бұрын

    Maximum voltage in or out

  • @jenntek.101
    @jenntek.101 Жыл бұрын

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

  • @TechStudyCell

    @TechStudyCell

    Жыл бұрын

    you can use any volt above 25V.

  • @garciaemas6556
    @garciaemas6556Ай 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

  • @mohammedahteshamshaikh
    @mohammedahteshamshaikh2 жыл бұрын

    Is this a dual power supply??? Please reply

  • @balachandar6469
    @balachandar64692 жыл бұрын

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

  • @TechStudyCell

    @TechStudyCell

    2 жыл бұрын

    yes

  • @sheikhtech6315
    @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

  • @amitghosh6966
    @amitghosh69662 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

  • @balachandar6469
    @balachandar64692 жыл бұрын

    What voltage can I give Input voltage

  • @TechStudyCell

    @TechStudyCell

    2 жыл бұрын

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

  • @usmanriaz8396
    @usmanriaz83963 жыл бұрын

    current stays 1.5 at all voltages ?

  • @beastscientist

    @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

  • @abiadhimoolam1391
    @abiadhimoolam1391 Жыл бұрын

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

  • @Anonymous-nc2jq
    @Anonymous-nc2jq6 ай бұрын

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

  • @Anonymous-nc2jq

    @Anonymous-nc2jq

    6 ай бұрын

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

  • @amitghosh6966
    @amitghosh69662 жыл бұрын

    Where's the circuit diagram ?

  • @matpigaming1913
    @matpigaming19135 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

  • @godsowncreator1994
    @godsowncreator19943 жыл бұрын

    Bro can u make it without pcb board. Plz.

  • @TechStudyCell

    @TechStudyCell

    3 жыл бұрын

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

  • @nesaranwar4468
    @nesaranwar4468 Жыл бұрын

    Bhai dgtal mitar Kahan milega

  • @cicadazapnell9645
    @cicadazapnell96452 жыл бұрын

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

  • @ictsmjr491
    @ictsmjr4912 жыл бұрын

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

  • @roalexmediaproductions673
    @roalexmediaproductions6732 жыл бұрын

    This circuit is not working 😕

  • @toohsynsyyn3572
    @toohsynsyyn3572 Жыл бұрын

    Sir diagram send me plz

  • @user-ub9ff5gu1l
    @user-ub9ff5gu1l Жыл бұрын

    What happens if i use 10 k potentiometer?

  • @kennmossman8701
    @kennmossman87013 жыл бұрын

    need a 2 Amp transformer to get 1.5A output

  • @TechStudyCell

    @TechStudyCell

    3 жыл бұрын

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

  • @kennmossman8701

    @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

    @bravopapas4386

    3 жыл бұрын

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

  • @kennmossman8701

    @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

    @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?

  • @rushikantkatre1774
    @rushikantkatre17744 ай бұрын

    Bhai diagram glt bataya

  • @balachandar6469
    @balachandar64692 жыл бұрын

    Please reply

  • @ismailpulikkal7689
    @ismailpulikkal768911 ай бұрын

    Lm2596

  • @dilipmore4339
    @dilipmore43393 жыл бұрын

    बोलते नही और सोल्डरीं करते दीखाते नही इसलिए उल्टा थंमसब

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