Make Adjustable DC Power Supply in Easiest Way

Learn how to make an Adjustable DC Power Supply, You can adjust the Voltage from 1V to 28V, with 1A constant current.
this is a starting level of adjustable power supply, I will Upgrade this power supply day by day....!
Video link: • Make Adjustable DC Pow...
Download Circuit Diagram : drive.google.c...
Circuit Diagram with Voltmeter & Ammeter : drive.google.c...
Major Components List:
C1= 3300uF, 50V
C2= 1uF, 63V
C3=10uf, 63V
R1= 3.3k
R2= 5K Potentiometer
R3= 240 Ohms
LED
d1,d2,d3,d4, = 1A diodes , (1N4007)
Transformer = 24V or 12V*** (1A)
***[ if you use 12V transformer, then the transformer must have tapping of 12-0-12, Otherwise you will not get 24V] as I have used in this project.

[@GhulamHussain-xh7qc]

Bhai jan ki app ka pechan kohi bandook lake bag rah tha Jo itni jaldi ma project banaya zara aram sa banaya Jo sub ka samaj ahh jatakara app na apna faida kia fir bi thank

[@polmourgos]

Hi.Thanks to your diagram and circuit i was able to build my bench power supply.But insted lm317 i used the D2390 transistor.All the rest are the same.I use a 24 acv trasformer and at the out put i have 34 dc volts.The adjustable range is from 0 to 32 and can handle easilly 3 amps.I cand beleved that i build it, but all credits goes to you...the teacher.Thanks alot.Looking for the next project that i hope i can make it and learn from you ....

[@davidshack5574]

Thanks a lot., I am happy that my video helped you. I will make more upgraded Power supply later ..! My next video is on, How to make an Emergency Light for Home use..! stay tuned

[@bhaveshpithadia8960]

जबर्दस्त उछाल 😮

[@captainprice780]

You should have installed a VoltMeter ... it completes your build and looks perfect btw it is awasome

[@garymucher9590]

Usually in this typical LM317 power supply setup, people install a diode from the output of the LM317 to the input. (Tech sheets for this regulator even suggest that). It protests the regulator in the event of a cap failure. Just a suggesting.

[@tapojyotiacharya]

I have a problem, it's adjusting from 22V to 28V. It should be adjusting from 1.25V to 28V...Can you plz help me? Another question, if I use 220 Ohms resistor, will there be any problem?

[@Templemain]

Good quality video, but I think it would be ten times better without awful music and an instructive voice instead. I see many comments asking further information simply because there was NO guiding voice to briefly describe components & assembly.

[@nicolaeiordachescu1636]

Cred ca n-ai lucrat nimic in viata ta !

[@urla.tejaswitaruneee2483]

Nice assembling the kit but it would better if the circuit is explained . Anyway Nice video thanks for the circuit diagram.

[@Tariqlhr9]

Nice work dear, simplest and easiest way to make a good regulated power supply.

[@adamsucksatyt]

Very good :) Why aren't people subscribing to you, when your content is perfect. I actually wanted to make it myself just a "little" stronger in amperage 3A instead of 1.8 max. current

[@saneeshelectronica9293]

u can modify it use big bridge rectifier use 4700 MFD 3 nos

[@adamsucksatyt]

And I'll add a current regulator, and a analog meter with 2 scales - V, A (voltage/current mode gets switched by DPDT switch) Also there will be a 4 A fuse at the output and a 500 mA fuse on the input. Proper grounding is a must, so that will be there too Technical parameters of DIY power supply unit: - 0-24 volts / 0-3 amperes / 72W max. - Adjustable voltage - Adjustable current limit - Analog meter 2 in 1 - voltage and current combined - GROUNDED - quiet operation - etc.

[@billallen2419]

Great project . . . . everyone wants a resistor burner. Would last a whole lot longer with some heat sink compound under the voltage regulator. . . . When buying the compound I suggest you buy some decent tools.. . . . Metal cases need earthing, and you really do need a fuse !

[@24finder67]

Nice hand-made machine 👍👍👍 Add a volt meter there is better.

[@countryside8122]

Yes the music is annoying... But the idea is very good. It is up to the user to modify it or make it better. I would add a circuit breaker instead of a fuse. The circuit is not much different than a old Eico power supply i have. Other than The one I have has a lot of overkill in it. It uses chokes to get the full 24 volts out of it.

[@imnotbeluga007]

Good luck finding an 250V 100mA breaker!

[@GurvinderSingh75]

Thanks for uploading useful stuff but plz make video that we can see easily all connection's.

[@telstarvision1509]

very nice tidy & well finished project.

[@muhammadrehan2907]

I wanna make 30 V and 4amp supply.. Would I just change the transformer?

[@realfilms74]

Thanks bro it works nice,it is useful for my project

[@souparnadhar7034]

Valore vai... Assembling gulo darun koris.. Darun

[@mohammedirfan6754]

Nice video sir I created the circuit with dual display voltmeter and ammeter and I use 10k potentiometer. Voltage is showing up to 32v but I connect motor it not working and not showing ampere on display and not working only voltage is dropping. What is the exact problem sir plz tell me

[@khentronics_1990]

oh yeah .. tnx for your video .. ur amazing man .. 0-28 v .. .. i got it .. tnx david

[@vickysalunkhe8124]

Hello sir i am willing to make the same with transformer 24-0-24 V 5 Amp center tapped transformer can you plz suggest me required components for it , like which diode, resistors should be used. Waiting for your rply Thanks :)

[@MdRony-xy4ej]

এইটা কোথায় পাব ভাই দাম কত টাকা

[@mdsirajuddinmdsi8768]

Very nice, very strong

[@hadayatullah1865]

Sir, I have made this project but instead of getting minimum voltage 1 V ,I get 8 V and maximum voltage 26 V . Help me please to lower the minimum value (upto 1 V ). Waiting for your reply. Thx

[@badge_bad3211]

Sorry mate, its ok, but...there a few things i want to point out. First, get a 3A fuse. Youll gonna blow the poor 317 and hes gone. Second, intergrate a voltmeter inside it. Why not? Third, GROUND THE HEATSINK! The backside of the lm is gnd so ground it up to prevent shorts. Forth, make a permant pcb. Im 15 and i made my own using that regulator.

[@TAH_YT]

Sir can i use 2amp 12-0-12 transformer with this circuit

[@onofrenene3946]

Sensacional parabéns amigo gostei muito

[@loyaaheibam6277]

Easy is not the best way but I like to say congratulations

[@amitghosh6966]

The heatsink I think is small and won't dissipate much heat when voltage drop across the Ic is large and more current of 1 Amp is drawn by load. Can we mount the Ic on metal cabinet to act as heatsink in this case ?

[@vladimirdudas9397]

LM317 have minimum constant reference 1.25 volts. If you want to go from zero volts, need you negative voltage, so it's not 0-28v and need fuse ofc.

[@abhinabhota85]

I can say just one word WoW😮😨😨

[@KeepOnTesting]

Or you can just go and buy one :) Nice video..Thx

[@MichaelJrDavid]

The transformer is over heating when i use it, and it blows last time i used it. What should i do? I follow the step and I used a propper and correct connections and correct components. Please reply, thankyou

[@rafaelmanatac8399]

Please tell me all the components to build this power supply thank you

[@ambarkranti3350]

i'm downloading this video now!

[@jovitofernandez4795]

In the circuit diagram shows 2 resistors, but in the circuit board there's 3 resistor? whats the use of the 3rd resistor?

[@Tariqlhr9]

Dear JOVITO, The 3rd resistor mark as R2 in the diagram is potentiometer.

[@Tariqlhr9]

Two resistors and one variable resistor.

[@fongmorales1509]

Can we use this project to charge lithium ion battery pack?

[@user-pwd]

Install digital voltmeter also It's good idea

[@MasterMindsPlanningInstitute]

Sir 12-0-12 5amp transformer aur 6a diode use kaar sakatha same circuit ma

[@akshaygorain2351]

superb job

[@mridulm8870]

Please mention wattage of resistor u used in this project and the wattage of pot also please reply

[@somnathmagar4567]

Nice video 👌 👌 👌 👌

[@texnobarnoyev8779]

Very good friends

[@waltercomunello121]

As a starting level it's commendable, but it has fairly low efficiency compared to SMPS ones, being the LM317 a linear regulator. On the other hand, this is much simpler to build.

[@imnotbeluga007]

Sure. It may consume a lot of power, but linear power supplies always have the cleanest output and that's why they're still around. Also, they're a lot simpler as you said.

[@amitghosh6966]

Do the branded bench power supply use Linear or switching method? How they derive higher current if linear Ic is used?

[@harshsinghal5898]

I love this guy

[@davidshack5574]

John Kill 😁

[@lvb1b463]

What about adding a 0v to 30v voltage measuring digital display added to the casing

[@martincholoyo]

Nice power sopláis

[@deepakbhardwaj7773]

very neat and clean

[@davidshack5574]

deepak bhardwaj thank you

[@deepakbhardwaj7773]

my 12 0 12 transformer is not giving be any voltage output how to fix this problem.

[@davidshack5574]

No way to fix.. You have to replace. Before replacing please cross check the output voltage of the transformer. Remember that the output voltage of the transformer is AC, not DC.

[@manojkumarkarji2499]

Nice video, waring ki video slowly dekhao

[@Koacsil]

Это фантастика!

[@Bodragon]

Great little power supply but not only do you have no over current protection by way of a fuse, you really should have earth / grounding on that metal box for safety reasons. It would be illegal to use in EU. In fact, this device is potentially very dangerous death trap. If a 230V live wire touches the metal box from the inside the whole box becomes live / hot. If you then touch any metal part of the box and you yourself are grounded, Bang! Goodbye you! If box was grounded it would either break fuse or trip the RCD (Residual Current Device), also called the GFCI (Ground Fault Circuit Interrupter) in USA saving your life. I strongly urge you to update your video. There's hardly any extra expense to use a 3-core mains cable.

[@tronixfix]

Bodragon lol here in germany your not even allowed to wire a lamp in ur own home because something could go wrong... If you still do so and something really goes wrong your insurance wont pay because its ur fault, even worse would be if you damage other persons or their property.

[@dhanrajnayak351]

दरअ सल श

[@antresia.9723]

ok I need help I have a AC/DC Unversal adapter TS506B.the switch broke and 2 springs came off and I don't where does the second spring goes so I decided to make a idea I will make a dc power supply 0 to 42 volts.the mah of TS506B is 1000mah it has voltage switch 1.5-3-4.5-6.7.5-12v I want to add the 42 volt to it.I have lots of VCR LCD screens,1 potentiometer and a 42v EPSON power Supply so how do make it to work.also my Mosfet P75NF75 on Amazon is coming this month on October supposly.I still have a QW-MS305D dc power Supply the problem was the mosfet was spoiled so I had to order the same new one.

[@michaeljoseph758]

It is excellent

[@kristalsbz37]

Nice job

[@abdat960]

There is no potentiometer in the video but there is one in the schematic? Can I just use a regular 5 k ohm resistor?

[@colinsmith4185]

Heat sink compound?Good construction,Colin.

[@EmRielLachica]

Can I use 12A transformer?

[@factsistech9952]

sir 22 k potentialmeter use ker sakte hai

[@Juanruizsalamanca]

muy bueno el montaje, me gusta, un saludo desde mi canal

[@user-gb7nq1pu9g]

good work

[@Server400-y5k]

Very understandable

[@cam3oh]

Very nice video. What did you do to ensure there won't be any potential shorts to the case?

[@mspencer243]

how many current does the power supply have? how make it 2A or 3A output? and how to connect the amp meter correctly? what is the polarity in the diagram? please answer.

[@mervinbiju6931]

Thanku unkle

[@Vidya1939]

Neat job,nice video, educational & TKQ

[@Milosz_Ostrow]

I would have added a dab of thermal compound between the LM317 and the heat sink prior to assembly on the perforated board.

[@muklisonalawi]

Very helping me

[@chesterbloom]

why do you have 3 resistors wired in series between prongs one and two on the voltage regulator? you only specify two resistors and a potentiometer in the parts list.. and by the looks of the schematic, the 3.3k one should be wired to the 3rd prong. Maybe I need a little guidance.

[@chesterbloom]

Or if you could say the different resistances of all the resistors used in the video, I can figure out the rest. You are using a total of 4 resistors plus a pot in the video when you only call for two resistors plus a pot in the schematic...

[@hpsasilvasilva5143]

Very Good ! Tank you

[@ulisesaguilar4392]

a Question Sir what would happen if I use a 5 amp transformer , if You can give feed back thks , a nice project

[@classesamida]

if you want how to upgrade this circuit to deal with 5 amp or even more check my last video :) Minute 7:22

[@medhary7665]

thank you very much

[@tr1cktv960]

Hi can ask a question? If i want to put fuse in power supply, where is the right place should i put the fuse?

[@ganeshsakpal3165]

Iss dc power supply se lead acid battery charger kar sakte hai kya?

[@mofizurrahman9155]

গুড জব

[@clashwithdecentshubhamshar3549]

sir please tell me about 3 resistors that you fix after 1uf, 63V capacitor. please tell me fast

[@MegaAlokpatel]

where is the 3 register is used

[@agusdwi4250]

Is this tool can be used to increase the temperature of the solder heat

[@miltonr2390]

bro i need (0-50)V in 5A with variable voltage and current

[@ikentfix]

can i use this to charge my 5s 18650 batteries which is 21V?

[@RajiSuresh-Spiritual-Talks]

Very nice

[@asthapal9859]

sir can i use a 4700 uf capacitor in place of 3300uf and 2.2 uf capacitor in place of 1 uf and an 4.7 k potentiometer in place of 5 k and tell me if i could skip the heat sink

[@chemistryenjoyer53]

Wtf...just get the parts

[@Rahul-ur3jy]

is this convert AC to DC and are u using any adaptor or giving current straight from the house

[@SimpleWala]

RYT IGNITION Converting ac to dc using full wave brigade rectifier. He used 4 diode 1N4007

[@inayathussain9236]

Instead of using centre tap transformer, can we use a normal transformer

[@mohankwr1]

Sir, given circuit diagram is different than you done in this video. I seen, you use total 4 Resistor (except 5K potentiometer) and I dont understand some connection, In a given diagram Resistor 3 connected between LM317's 1st pin to Resistor 2(5K potentiometer) and more connection between LM317's 1st pin and Resistor 3rd to Resistor 2. please send me your own manual diagram if you had draw during this work. Thank You.

[@basuroyal2783]

what can I use instead of 240ohm?

[@solomonassefa9124]

how much values of transformer power rating and out put power rating

[@RKShaw]

What is the output current of this power supply? It is 1 Amp, isn't it?So how to do increase that output current?

[@cesarcabatitv2813]

Hi, this is a nice project but where can I put a fuse and proper grounding? Thanks!

[@jitendrakumar-ni4ys]

Is it safe without diode connected in lm317 across 2 and 3 ?

[@dtn2529]

Unable to open Google file or folder

[@entertainmentguaranteed8869]

sir!! i have done this project the voltmeter is displaying the varying voltage when it adjusted by potentiometer but . The problem is when I connect the power supply to an motor is not even running.. pls help me sir!

[@mangeshvinodbhole670]

Can we use 12v 2A transfarmer this circuit

[@TheHellfiremissile]

Love it, am gonna build one. Thanks for sharing. VK2KWW

[@jhonones1143]

what amount of components shall i use if i want an 30V output ?

[@1stoneable]

hey if I got a home generator it run on gasoline I want to get rid of the gasoline motor and put electric motor on it a 12 volt motor what size 12 volt motor would I have to have to get it to run at full capacity I'd like to know

[@mohamedibrahimm3627]

What u 1st attached to the pcb

[@aiochannel2333]

thanks

[@saptarshimaji3624]

hey i made it.....14 volts only output....what to do to rectify it.....

[@comingapart]

how are you getting 28 volts out of a 24 volt transformer configuration? How are you getting a VOUT>VIN with a 317?

[@thenetimp]

230VAC is 230VAC RMS. It is not the actual peak of the AC Wave form. The peak value is 325.22VAC peak, so there is really more energy there than what you think it is. Now the transformer is a 10 to 1 ratio transformer (transformers aren't measured in voltage). This means that 325.22VAC peak is converted to 32.522VAC peak. When it goes through the bridge rectifier it loses .7V over the diodes of the rectifier that gives you 31.8VDC. There is voltage loss over the regulator so it goes down a bit more. Which is how he gets the 28VDC through the output.

[@mr.everywhere7504]

good day sir. what is the wattage of the resistor? and LED voltage? thanks a lot... looking forward for your reply... i want to build this variable power supply...

[@questionanswer8501]

Bhai video bana ke sikhane ke liye post kiye ho yaa apna sirf tallent dikhane ke liye thoda slow vide kiye hote or bole ke bata toh samajh me aata