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HOW TO MAKE A VARIABLE POWER SUPPLY ( VOLTAGE AND CURRENT CONTROL )

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HOW TO MAKE A VARIABLE POWER SUPPLY In this video I have made a variable power supply using an adjustable voltage regulator LM 317 and a power transistor to increase its output current . I have tried to make this video as easy as it could be and used common components. I Hope it would be helpful COMPONENTS: 1- 1X LM 317 2- 1X D1047 TRANSISTOR 3- 1X BD139 TRANSISTOR 4- 1X 5 K OHM VERIABLE RESISTOR 5- 1X 10 K OHM VERIABLE RESISTOR 6- 1X 4.7 K OHM RESISTOR 7- 1X 4.7 OHM 10 WATT RESISTOR 8- 1X 220 OHM RESISTORS 9- 1X LED 10- 2X2 PIN TERMINAL BLOCKS 11- HEAT SINKS 12- 1X VERO BOARD 13- SOME WIRES Circuit diagram: https://drive.google.com/open?id=1e5shQhVqiBi4hqQh_SiG3ghAsWhqu8wJ https://drive.google.com/open?id=1lgJyeheiR90rJ4RcXkbav8a1nyH7aTAj proteus file: https://drive.google.com/open?id=1WrS7NVBekvkUpauuZ7JUcN1LLD3pMikz Previous videos: https://www.youtube.com/watch?v=_0-cnJPRK9I&list=PLvlwETz0FTvuwDSpe2E-pmTe8BSC9xkRq
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Text Comments (539)
Mrityunjay Sharma (1 day ago)
Is it good to covert 24v to5v having 4A output current, making it dissipate about 90W in itself? Will a good hear sink able to maintain the temperature?
Kiyani's Lab (1 day ago)
yes bro it can be used for that with bigger heat sink
sameer singh (3 days ago)
Master he video 🎥
Kiyani's Lab (3 days ago)
thanx bro
Vijay Mahato (4 days ago)
Sir current regulated nahi ho raha main transistor tip3055 use kiya hai please kya problem hai bata na
Kiyani's Lab (4 days ago)
bhai circuit k connections check karo or bd139 waali 5k variable ko b
Mr Remmoz (7 days ago)
In practice the same result you will obtain using only LM317, no need of the curcuit with BD139 and D1047, where changing current the voltage is changing also automaticly.
Mr Remmoz (7 days ago)
+Kiyani's Lab Exactly you can limit current simply by changing voltage.
Kiyani's Lab (7 days ago)
bro lm317 give 1A max and dissipate heat too d1047 can give much more current the em 317 is used as voltage reference and 1047 amplifies the output and bd139 is use to limit the output current
mairaj ali (10 days ago)
इसका समा कहा मीलेगा
Kiyani's Lab (8 days ago)
आप इन इलेक्ट्रोनिक्स की दुकान या ऑनलाइन दुकान से खरीद सकते हैं
yogesh kumar (11 days ago)
I have made it ..it is working Thanx sir
Kiyani's Lab (10 days ago)
welcome bro
Ahmad Kholifatul Ardhi (12 days ago)
Sir, your power supply circuit is amazing. But I would like to ask how to make symmetric power supply from your circuit? Thank you
Ahmad Kholifatul Ardhi (10 days ago)
+Kiyani's Lab Thanks a lot sir. Here I am trying to design a symmetric power supply circuit. Please correct whether something is wrong or not, sir. This is the link : https://drive.google.com/open?id=1U3PRHgx3GmdnEVA-pJavQCIMN8iPwr72
Kiyani's Lab (12 days ago)
the circuit would be the same just need to replace lm317 with lm337 and d1047 with 2n2955 or similar and bd139 to bd 140 i will make a video on it soon
Deepesh Soni (13 days ago)
Ghanta .5 A KE MAX. CURRENT WALI POWER SUPPLY KIS KAM KI.
Sayed Ashraf Sannakki (17 days ago)
Contact number plz call 9343100083
Sayed Ashraf Sannakki (17 days ago)
How to make 63 amps control welding machine in primary control 440 volt
Kiyani's Lab (17 days ago)
ok bro soon make it
Shorav Paul (20 days ago)
Is here any alternative of D1047???
Shorav Paul (19 days ago)
Great bro, its working, but over heat is a problem.....
Kiyani's Lab (20 days ago)
TIP3055 TIP35 BD911
Raj Kumar (22 days ago)
Sir d 1047 ki jagha per koi or dusra transistor lag sakta ho to jarur batana
Kiyani's Lab (20 days ago)
TIP3055 TIP35 BD911
Tapan Das (23 days ago)
thank sir it work
Kiyani's Lab (22 days ago)
welcome bro
Adarsh Hule (23 days ago)
Can we charge a 12v battery with this project
Kiyani's Lab (23 days ago)
yes you can charge i have made an automatic 12v charger here is the link https://www.youtube.com/watch?v=WNLHAg0pyZU&t=0s&index=2&list=PLvlwETz0FTvuwDSpe2E-pmTe8BSC9xkRq
antaga ismaya (24 days ago)
good sir, can you tell me, what is the max voltage input of that device?
Kiyani's Lab (24 days ago)
thanx bro and 35v max input voltage
Sanjay kumar ojha (24 days ago)
Can I glow a DC 12v 200 watt LED light by using this module... please reply
Kiyani's Lab (24 days ago)
no brother this can handle only 50W 12v if you want to connect 200 w connect 4 d1047 in parallel
ishfaq ahmad (24 days ago)
السلام علیکم! سر کیا اس کو شارٹ کرنے سے یہ خود بخود آف ہو جاے گی۔ اگر نہیں تو ایسی سپلائی بنانے کا کیا طریقہ ہے ویڈیو بنائیں پلیز
ishfaq ahmad (23 days ago)
+Kiyani's Lab ok thanks
Kiyani's Lab (24 days ago)
nai bhai is ma short circuit protection nai ha ma jald video banata hu
TOUFIK ASAS (25 days ago)
good you are .
Kiyani's Lab (24 days ago)
thanx bro
ishfaq ahmad (25 days ago)
bro 4.7 OHM 10 WATT RESISTOR ni mil raha 5 watt ka mil raha hy tu kia krain
ishfaq ahmad (24 days ago)
+Kiyani's Lab ok thanks
Kiyani's Lab (25 days ago)
bhai usko skip kardo uski jaga jumper laga do
Zubair khan (26 days ago)
i think there should be power supply circuit behind this circuit?
Kiyani's Lab (25 days ago)
bro every thing is in the description
Zubair khan (26 days ago)
Do u have this schematic on Proteus. i need this file
Kiyani's Lab (26 days ago)
https://drive.google.com/open?id=1WrS7NVBekvkUpauuZ7JUcN1LLD3pMikz
Zubair khan (26 days ago)
WHAT TRANSISTOR WE CAN USE AS SUBSTITUTE OF D 1047?
Kiyani's Lab (26 days ago)
TIP3055 TIP35 BD911
Zubair khan (26 days ago)
THAT SHOULD BE IN PROTEUS
hamza aziz (26 days ago)
y u didn't use bridge rectifier?
Kiyani's Lab (26 days ago)
because i am using dc supply
Wasim Raja (27 days ago)
Awesome bro keep it up... Bro microcontroller ka use karke LED blink kaise krte hain uska bhi ek video banao detail ke sath programming wagera sabka
Kiyani's Lab (26 days ago)
ok bro jald micro controller pe videos banao ga
Arjunpudu (27 days ago)
Bro how to connect voltage and current display into this
Arjunpudu (27 days ago)
Bro I want to create my own electronic circuits how can I start ,how to understand circuits fundamentaly please help
Kiyani's Lab (26 days ago)
bro first you need to learn about electronic component their working and basic electronic circuit
Vijay Mahato (27 days ago)
Sir answer me D1047 trasistator do not found then which transistor replace to d1047 plzz replay
Vijay Mahato (27 days ago)
+Kiyani's Lab thank you so much
Kiyani's Lab (27 days ago)
TIP3055 TIP35 BD911
Bishal ÅRáV (27 days ago)
Voltage and current input kitna denge
Kiyani's Lab (27 days ago)
35V max and 3A max
Bishal ÅRáV (27 days ago)
Input voltage kitna dege
Kaushal Kumar (28 days ago)
Respected sir ,,if I use 10k...in place of 5k....will it work.....plzzz tell
Kaushal Kumar (27 days ago)
+Kiyani's Lab Dc soldering iron....I have connected 60watt
Kiyani's Lab (27 days ago)
what load you are connecting to it
Kaushal Kumar (27 days ago)
+Kiyani's Lab sir Ur great,,,today I have made this circuit,,,,and it's working.....but problem is that Transistor is getting too hot,,,,when I touched ,,,it burns my ✋ hand....what should I do ??
Kiyani's Lab (27 days ago)
yes bro it will work
Teach new Today (28 days ago)
Sir I unable to find d1047 so which transistor I can use in place of d1047
Kiyani's Lab (27 days ago)
you can use TIP3055 TIP35 BD911
Kaushal Kumar (1 month ago)
Respected sir How much current it can give??
Kiyani's Lab (1 month ago)
3A
home made idea (1 month ago)
Nice
Kiyani's Lab (1 month ago)
thanx bro
raj kishor (1 month ago)
मेरे पास 20v 4.5 Amp का लैपटॉप अडॉप्टर है में जिसके आउटपुट को adjustable करना चाहता हूं परन्तु LM317 का करंट रेटिंग 1.5 amp है जबकि मुझे 4.5 amp तक चाहिये । कृपया सुझाव दीजिये क्या करूँ ।
Kiyani's Lab (1 month ago)
bhai ye supply use ho jai gi bus 2 1047 use karni pare gi ye diagram help kare gi aap ki https://drive.google.com/open?id=1zZ1AxPdZ6eB2vld70Higp-eIT-HKa_iH
Ali Asgher (1 month ago)
Thanks kiyan bhai 1watt 220 ohm resistor use kar sakta ho
Ali Asgher (1 month ago)
Abe ka answe ka jawab do kiyan bhai
Ali Asgher (1 month ago)
Thank you kiyan bhai answer daynay kay leya
Ali Asgher (1 month ago)
Answer plzzzzz
Ali Asgher (1 month ago)
Kiyan bhai circut bilkul perfect kam karta hai or may 24 volt power supply use kar raha ho ok hai ya nahi Kiyan bhai
Kiyani's Lab (1 month ago)
24v bilkul theak ha bhai
Fazal Subhan (1 month ago)
Nice bro
Kiyani's Lab (1 month ago)
thanx bro
neshar mostafa (1 month ago)
Maine TIP3055 use Kiya hain jiska power 90w amp 15. transformer hain 12v 3 amp
Kiyani's Lab (1 month ago)
3055 is better
Ali Asgher (1 month ago)
Kiyan answer plzzzzzz kiyan bhai
Ali Asgher (1 month ago)
Answer plzzzzzz
Ali Asgher (1 month ago)
Answers plzzzz kiyan bhai zarore hai
Kiyani's Lab (1 month ago)
waise smoke nahe nikalna chaye connection theak se check karo
Ali Asgher (1 month ago)
Kiyan bhai kiya ham es circut may 220 ohm resistor 1watt ka laga saktay hai q k hamary circut may say toda toda smoke nikalta hai
Kiyani's Lab (1 month ago)
laga sakte hai bro
viswanathan iyer (1 month ago)
good viedeo
Kiyani's Lab (1 month ago)
thanx
neshar mostafa (1 month ago)
12v 10w lamp
Kiyani's Lab (1 month ago)
ye circuit to 36 watt tak easily chala sakta ha votage drop nahe hone chaye circuit k connections ko dobara check karo bhai
Sahil Patel (1 month ago)
Sir isme kitne volta kitne ampere tak ki power supply de sakte
Kiyani's Lab (1 month ago)
35v max 3A max
neshar mostafa (1 month ago)
Load dene k bad voltage drop ho rahi hain? Sahi Kay hoga??
Kiyani's Lab (1 month ago)
kitna load ha bhai
Benito Mojica Gomez (1 month ago)
Qué elementos se tendrían que ajustar para 5 amperes..? Y como se podría incorporar un fusible electrónico. Gracias.
Kiyani's Lab (1 month ago)
conecte dos d1047 paralelos y puede conectar el fusible en serie a la salida
Sajid Khan (1 month ago)
Input ketna Volta dyna hy
Kiyani's Lab (1 month ago)
35V max ha bhai
Sajid Khan (1 month ago)
Ap ka Wahttsapp number
Chiranjib Mondal (1 month ago)
Excellent
Kiyani's Lab (1 month ago)
thanx bro
TeChiE 99 (1 month ago)
can I use a 12v 10 amp power supply as its input?
Kiyani's Lab (1 month ago)
you can use 12v for 10a connect 4 d1047 parallel
Muhammad Shah (1 month ago)
Doosan
Zaccrio Garcia (1 month ago)
is it ok if i use a 12v input
Kiyani's Lab (1 month ago)
yes bro it can be use with 12v
zameel zameel (1 month ago)
Ok
zameel zameel (2 months ago)
Input 40v so how to change circuit
Kiyani's Lab (1 month ago)
40v k liye circuit change ho ga bro
Sir isse 40 volt 10 amp power supply Ko regulations kar sakte h plz sir help me I am waiting for your answer
Amarendra Tripathi (2 months ago)
Brother, Maine ye circuit battery charging ke liye banaya hai.circuit think kaam kar raha hai per current output battery lagane ke baad kewal 200ma Max hi as raha hai. Jabaki have 300ma per battery ko charge karana hai. Kya Karen? Meri battery 11.5 v Tak discharge hai. Maine input smps 24 v 3A see Diya hai .Please help.
Kiyani's Lab (1 month ago)
thank you brother
Amarendra Tripathi (2 months ago)
Bahut sahi brother. 14v per current think ho gaya. Thank you very much.circuit bahut hi simple hai. Essee tarah ki vedio aur banao. Simple circuit aur bahut Kam components. God bless you.
Kiyani's Lab (2 months ago)
bhai g battery ko 14v pe charge karo or agar lead acid battery ha to uski specific gravity check karo
Waqas Honey (2 months ago)
very best power supply and it is complete power supply for marketting
Kiyani's Lab (2 months ago)
thanx bro
Murad Khan (2 months ago)
Bro How we can add volt and amp meter in this circuit and using this circuit just for 15 minutes the 10watt 4ohm resisters heat up?
The Rock (2 months ago)
okay bro I will try.thanks
Kiyani's Lab (2 months ago)
bro add amp meter in series of output and volt meter in parallel of output and bro how much current you were drawing for 15 mins
lasith kongahage (2 months ago)
How to set a voltage to fine turning?? Please reply brother ...
lasith kongahage (2 months ago)
Can be currunt
Kiyani's Lab (2 months ago)
voltage can be tuned with variable connected to lm17 ic
Yuga Pratama (2 months ago)
bro for transistor D1047 can I replace it with TIP31 or TIP41?
Kiyani's Lab (2 months ago)
yes bro you can use them but single tip41 gives 1.5 A
Maz Irfan (2 months ago)
*sir*, if I want pararel the lm317, can or not?
Kiyani's Lab (2 months ago)
noit is not a good way to increase power
Current kitan drop hota he ???
Kiyani's Lab (2 months ago)
1v drop hote ha bhai
Mark Pariñas (2 months ago)
What Vin did you use? Please reply thankyou
Kiyani's Lab (2 months ago)
i use 21v bro
The Rock (2 months ago)
if the current is more than 4 ampare so I need to connect two D1047 transistor in parallel?
The Rock (2 months ago)
thanks bro..👍
Kiyani's Lab (2 months ago)
yes bro
Atomic t c g (2 months ago)
Bro sorry for again questioning but what use of 4.7 ohm resistor is not current sensing so why we use it ????
Atomic t c g (2 months ago)
+Kiyani's Lab yeah thanks bro that iam thinking what use of it now you clear .you know why iam love your chanel because you answer all question no matter where and when asking keepitup 💝💝💝👍
Kiyani's Lab (2 months ago)
bro you can use jumper instead of it i will use because of current sensing and connect a meter in future
Sa Surya (2 months ago)
input of the voltage is how ,i need 30v 333mA power supply / any one tell me please
Sa Surya (2 months ago)
i/p -35v,3A ok and i need 30v 333mA only how to make this range of power supply sir
Kiyani's Lab (2 months ago)
max input voltage is 35v and max current is 3A
Bisma Mehraj (2 months ago)
actually pin connection is not compatible with pin configuration
Kaushal Kumar (2 months ago)
Respected sir how much this circuit can give?
Kiyani's Lab (2 months ago)
0-35 v and 0-3A
Bisma Mehraj (2 months ago)
i m not able to get led lighted plz..help
Bisma Mehraj (2 months ago)
actually connecting positive and negative connection r not explained
Kiyani's Lab (2 months ago)
check all connection again according to circuit diagram
vikas verma (2 months ago)
4.7 ohm 10w resistor ki jagah ky use kar skate hai
Kiyani's Lab (2 months ago)
4.7 ohm se kam koi b jumper b use kar sakte ha
Gurkirat Singh (2 months ago)
Sir i m unable to find 10 watt resistor and d1047 near me plz tell me what to do plzz its urgent
Kaushal Kumar (27 days ago)
+Gurkirat Singh call me 9125499914...I will help u
Gurkirat Singh (2 months ago)
Sry but as i m a begginer nd want to make a power supply for my projects can u plz tell me whats jumper and its rating if any plzz tel bro
Kiyani's Lab (2 months ago)
bro you can use a jumper instead of 10w resistor and you can use any equivalent transistor
Pradeep Bhaskar (2 months ago)
what is the input voltage and current?
Kiyani's Lab (2 months ago)
35v max and 3A
Murad Khan (2 months ago)
great work..👏 hello Bhai agr laptop adapter se 19V aur 3+A input ho tu output ampares ketne tk adjust hoskte hai?
Murad Khan (2 months ago)
thanks kiyani bro..😊
Kiyani's Lab (2 months ago)
bhai g 3A tak kar sakta ha agar zada amp karne ha to 2 1047 parallel ma lagao to 6A tak control ho ji gai
Yuga Pratama (2 months ago)
for installing a digital volt ampere meter how do you do it? please include a diagram
Kiyani's Lab (2 months ago)
ok bro
the extremes (2 months ago)
Kya circuit ke input ke liye 35v 3A transformerless power supply use kar shakte hai?
Kiyani's Lab (2 months ago)
g bhai, 35v 3A use kar sakte ha rectifirer b 3A ka use karna
the extremes (2 months ago)
Circuit ke supply ke liye konsa rating ka transformer use karu ?
the extremes (2 months ago)
24volt 1A ka use kar shakta hu?
Kiyani's Lab (2 months ago)
25 ya 35 V or 4A ka best rahe ga bhai
Helitha Senaratne (2 months ago)
Can i know the input voltage
zameel zameel (2 months ago)
How to change circuit for 70v 6 input
Kiyani's Lab (2 months ago)
35V max
PRANJAL KR. SAIKIA (2 months ago)
Its good for regulate current.
Kiyani's Lab (2 months ago)
yes
Abdullah Khan (2 months ago)
LM317 3rd leg is for output, but you connect this leg with Vin. Can you please tell me why?
Kiyani's Lab (2 months ago)
Abdullah Khan bhai lm317 ki pin no 3input ha or pin 2 output ha google pe daikho lm 317 ki datasheet daikho
Hi sir sir 48 bt to 1.3 vt ko bi ajasth hojyaga kya bolya
Kiyani's Lab (3 months ago)
nahe bro us k liye dosra circuit banana ho ga
Cwam Kandu (3 months ago)
My outpyt is 30v do i have to change something from this circuit
Cwam Kandu (3 months ago)
Can u plz provide me a circuit diagram for 0-30v and current of 3amp
Cwam Kandu (3 months ago)
So what do i have to change
Kiyani's Lab (3 months ago)
no brother
BHUWAL NAGPURI music (3 months ago)
Keya Esme 12v battery charger kar sakte hay ????
Kiyani's Lab (3 months ago)
g kar sakte ha 40ah tak ki battery
Shankaran Seshan (3 months ago)
Can you explian the theory of operation of the variable Power supply
Kiyani's Lab (3 months ago)
yes bro i can explain it
DHIRAJ KUMAR YADAV (3 months ago)
Sir ye cercit kya price liziyega
Kiyani's Lab (3 months ago)
it cost me around 3 us dollars
Sanjay kumar (3 months ago)
Very nice sir
Kiyani's Lab (3 months ago)
THANX
Muhammad Eijaz (3 months ago)
Bhai koyi transformer less regulator supply banao
Kiyani's Lab (3 months ago)
ok bro
mohammad faruque (3 months ago)
Hello bro I made this circuit it was well running but d1047 transistor got heated up very soon Today I used my micro motor and it got burned with fumes Please help me what to do Bhai And how will I check my transformer amp
mohammad faruque (3 months ago)
Thanks bro
Kiyani's Lab (3 months ago)
bro how much current your motor is drawing and have you connected a good heat sink
manikandan r (3 months ago)
Pls make video english
Aman Sajid (3 months ago)
voltmeter or ammeter kaise lagae
Kiyani's Lab (3 months ago)
voltmeter output k parallel or ammeter output k series ma lagao bhai
Ketan Saindane (3 months ago)
Hi brother can i get yoyr mail id please
Aman Sajid (3 months ago)
10watt resistor ki jagah kia use kare mere ko ye resistor nhi mil rha h
Kiyani's Lab (3 months ago)
10 watt ki jaga jumper use ho sakta ha
RAJPURAHIT KINGH (3 months ago)
Sir please contact nu sand
RAJPURAHIT KINGH (3 months ago)
Dr bhro 5vat ka Dc power supply banana he kese banaya please
Kiyani's Lab (3 months ago)
ok bhai
RAJPURAHIT KINGH (3 months ago)
Sorry score DC power supply kaise banaye all 4 DC power supply mobile phone karne ke liye pura Pata Hai video please
Kiyani's Lab (3 months ago)
ok bhai
Gurpreet Kaur (3 months ago)
4.7 ohm 10watt resistors nhi mil rha. What else can be used
Kiyani's Lab (3 months ago)
any 10watt resistor less than 5ohm or you can use jumper
Gurpreet Kaur (3 months ago)
Transformer kitne amp ka hai
Kiyani's Lab (3 months ago)
bhai transformer 3amp ka ha or rectifier b 3A ka

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