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- Опубліковано 28 кві 2021
- Every Electronic Maker Needs a Adjustable Power Supply To make electronic projects
this video is all about how can you build your own very easy Variable power supply
in this video i will make a lab power supply using Lm317 voltage regulator it can regulate voltage using a 5K Variable Resistance the Lm317 can regulate 1.5 to 36V at 1.5A but 1.5A is not enough for many projects when you need more power like 775 motor or High Power LEDs so i will Use TIP3055 for increasing Current upto 5A it work great but it doesn't have short circuit protection at output so if short circuit happened at output the current reach 10A and Transistor will blow up in just 5 second
so prevent short circuit you can use This circuit
👇👇👇👇👇
• How to make short circ...
If you want more current upto 5A you can use 2 TIP3055 in parallel so you will get 10A
tags:
#LM317
#LabPowerSupply
#HighCurrent
#howtomakeapowersupply
#howtomakeadjustablepower
#variablepowersupply
#0vto30v
#9v #5v #1.5v #3.7v #4.2v #3v #25v #35v
6v adjustable power supply lab bench power supply 0v to 220v 12v how to make 0v to 30v variable power supply how to make adjustable power how to make a power supply Inverter
power supply protection unit manual reset diy idea elections mr greatscott project - Наука та технологія
❗Attention ❗
-----------------------------
please do not short the output + and - that can damage the transistor the current is limited by the input current
Add a fuse or current limiter before it. If you chose the latter option, you made an variable bench power supply that won't destroy itself or the stuff connected to it if it's set correctly..
Right
I have built this circuit and it is working perfectly
Thanks for letting me know ❤️
Thankyou bro comments pe VDO bnana k liye..
Always Wellcome ❤️
And Thanks For Selection
Muito bom os seus videos.
❣️😊
Excuse me, i want to ask again, so regarding to my regulator and Reverse Polarity Protection, which one is more make sense ? should i add the current with TIP3055 First and then the Output i add Reverse Polatiry Protection or Vice Versa ? thank you
Put a 10100 Diode at output it works fine
Super brilliant project congratulations
Thanks 😊
can i use Reverse Polarity Protection Instead of using Short Circuit Protection ? i'm a bit confused of it because the voltage will be dropped, first i'm using LM7805 as the regulator with TIP3055 as the enhancement of current, and then when i use Short circuit protection in Simulation, the voltage is dropped, so what should i do ? thank you
Not need to use any protection if you use low power input ... Like 3-5A
But if you use high Power at input like 30V 10A then it will blow up
@@Electronic_For_You okay, but I'm also making the 12 volt version with 10 amps, so can i combine Short Circuit Protection with Reverse Polarity Protection ?
Yeas .
No problem the voltage drop is 2V if you use shotky diode then it will be less
greetings, they can be used to reduce the voltage of a 20v 2a drill battery to 12v at 1.5a. for another 12v drill. Wouldn't it overheat Much? I already tried the LM2596 dc-dc and the MP1584 and it doesn't work, it doesn't lift the drill very hardly, that's why I wrote to you while I'm still stuck in my project while I'm looking for other modules of these, if you know, let me know. Thank you, I appreciate it very much for here I saw a mofet I think it's a 5 amp round metal mofet.
Hello
This is a linear regulator
And not recommended for heavy load . I still recommend using buck converter its most efficient and do not heat !
And if you are talking about drill machine. I think no regular can stand the Inrush current of drill machine!
You can power the drill from direct 12V ..
Watch i have uploaded a video on computer Powersupply you can use that it can give 12V 20A
Any other similar resistor for Tip 3055
Its not avalible locally
Use (2) 1 ohm 5w resistor in parralal
Very good
Thanks ♥️
Nice work
You Deserve more Subscribers ❤️❤️❤️❤️
thanks for support ❤️
ตัว r ตรง output กี่โอห์มจำเป็นต้องใส่ไหม
All are written on video 😊
What’s the input ampere? Can I use 24v 5a power adaptor for this project? Willl it work?
Yes
you can
@@Electronic_For_You okay
What is the value of big resistor in series to output. Also what is the value of resistor parallel to the output?? Thanks
Series big 5W 0.5 ohm
And parallel 1W 1K
can i use IRFZ44N
I want a 5W resistance alternative.
Try without it 5W R
You can try with Z44N
But do not short circuit the output
good work
Thanks 👍❤️
Can we give 12V, 3A as input from (Rectified to DC) Transformer?
Yeas 😊
Use 2 Transistor instead of one 👍
Great Video ❤️
Thanks
Hi,
What is the value of the last resistor you connected? Rightest
1k (5W) works best
Please answer my question, what is the function of that chalk resistor and 1k resistor on voltage output?
There is no short circuit protection on output. This why I used a 0.2 ohm resistor that will limit the current when shorted the output . and 1k is a load resistor if you don't put it there the voltage will not regulate correctly it will show 2v but when you load it will turn into 1v...!
@@Electronic_For_You owww good👍
🙂
@@Electronic_For_You do you know ic tc3582da? it is a charger ic with an indicator, can the ic be collaborated with tip3055 so that the current is bigger? if i can wait for the video
Sorry next video will come late there is lockdown in our country
The resistor that used in the first place, what value is that ?
1 ohm 5W or 0.5 ohm 5W
And at the output 1K ohm
I tried to follow The ceramic resistor is hot while the load is not connected. And I need 30A, which one do I need to change in this circuit?
30A 😐
use
10× TIP3055 and all emmitor resistor 0.1 ohm
@@Electronic_For_You I tried parallel 3055 X2 mounted on a 3X2 inch heatsink, connected 1K resistor on pin B, don't know if this is correct or not. and test loading at 4A for 10 seconds, causing moderate heat I don't understand how many Ampere can be loaded in 1 3055 datasheet.
2A for each TIP3055
( short circuit current is 10A )
Not need to connect 1k to pin 2 connect all as shown in pic
If your tip3055 is fake
Then it will reach 100°c in just minute
@@Electronic_For_You I tried calculating the installation area of tip3055 and it takes up a lot of space if using up to 10 pieces. Can I use something instead of the 3055? Just 4-6 pieces. Maybe fit my box.
Your clips and introductions gave me knowledge. Thank you very much for the advice
It will be very very good if you use this ua-cam.com/video/7wiCHRhQLx8/v-deo.html
1V to 30V 0A to 12A
I need to increase Ampere from 1.5 to 3Amps max, in a 12v DC supply output. It's to power an amplifier module. What would be the easiest solution? Please help out.
I recommend this
ua-cam.com/video/7wiCHRhQLx8/v-deo.html
Sir me kya 5w ki jagah 10 w ka use kr sakta hu kya cement resistor
10W Better
Thanx
welcome
Can i build mini variable power supply using two lm317, my power source is 24vdc 10A, first lm317 as voltage regulator 0-24v, and 2nd lm317 as current control 0-10A ?
I will make soon Current regulated power supply
You can wait if you want to see
@@Electronic_For_You ok my bro, thanks 🙏🙏🙏
Welcome 😊
Why the LM317? Wouldn't the transistor alone vary the voltage just with the potentiometer between its base and emitter?
LM 317 is made for regulating voltage .... Its very stable then transistors. Regular . hope you understand
@@Electronic_For_You thank you! You mean the transistor alone could actually be enough to vary the voltage but it would be unstable?
Yeas
Sarebbe utile, anche a scopo didattico lo schema elettrico.
Yeah
Por que não testou, nesse vídeo, algum aparelho de 5 amperes ?
I don't have 5A Device
Maaf... Resistor antara output positif dan negatif berapa ohm? Dan fungsinya apa
Big resistor???
Bro which all projects can I use the transistor tip32c
PNP transistors are rarely use in electronic project....!
They are used in push pull amplifier and half bridge full bridge Applications....!
Bro can't I connect the PNP collector base and emmitter to the right place then wont I be able to use it as an npn
No pnp transistor Use + VCC to Emmitor and Base needs - voltage to opened and npn need - to Emmitor
Hello bro i am having a transformer and it will give me 18v dc and after rectification it gives me dc of 18v, with maximum of 3 amperes of current, now i want to connect 12v led'ss to it, but it is giving 18v so can i use this? Will it give me 12v with 3 amperes of current?
Yes it can !
Use a good heatsink with it !
@@Electronic_For_Youheatsink on lm317 and tip thats it na
Hello, how could a regulator be made for 50 amps?
You need switching regulator
Buck converter
hii
can i use transtor 2n 3055 instead of tpi
Yeas
@@Electronic_For_You thank you
Wlcm 😊
what is on input side? how many V and Amper supplay
At input side i have connected a ATX PSU 12V+ and 12v - so voltage is 25V @ 2A
@@Electronic_For_You Thank you!
Always Welcome ❤️
@Creative for you sir can I connect atx 12v 12amp power to this circuit... Pls reply back
Yeas
You can
but it will be better to use protection circuit with it
Sir 10 k potentiometer se a cercuit banaya ja sakta hai kya ?
Adjustment may not work as 5k
Amigo una pregunta, también puedo usar un STPS3045CWC???
No .
3045 is a diode
You need a transistor
@@Electronic_For_You dele gracias, pensé q no ibas a responder, y cuál sería el reemplazo de ese transistor???
I always answer 😊
You can use
TIP3055
2sc5200
TIP35
The transistor current must be grater then 10A
Sir Can You Upload a Video For 14V and 20A Power Supply For DC Motor ??
Ok
@@Electronic_For_You Thanks A Lot Sir
Welcome
What are resistor values of output resistors at Transistor?
1k 1W+
Can i use TTC5200??
Yeas
It will be better....!
❤️❤️❤️❤️❤️❤️
Thanks
Can i use d1047 transistor
Yeas
very nice why put 5w0,25Ωj on output?
Its like protection against shortcut so the Transistor doesn't brust into flames
Bro make a tesla coil using pnp transistor
Not possible
Use NPN TIP41
ua-cam.com/video/zk78wjSRraI/v-deo.html
At the end of this circuit which resistance used?
1K ohm
How to get 10ampere from single TIP3055 transistor?
Not possible!
Because this is linear circuit.
WHY i can not upto 5A i just uptp 1.2A，how many input you put,please tell me how to try
I used
30V 10A powersupply
De dónde eres ?¡?¡Donky?¡?¡,.la última resistencia que se muestra de dónde la sacaste..que función tiene?
The last resistance, is protection for Power transistor . if the output is shorted the Transistor will not blow up your Face .... Only the resistance, get hot...!
Sir, can we get 5Amp output by giving 12V 1.5Amp as input from transformer , by using Two Transistors?
No
You will get
0v to 12v 1.5A (not 5A)
You will get 5A if you use 5A At input ( do not Short output it may damage the regulator)
Sir, then how to boost current from 2A input Transformer to 5A output (max)? Please?
By using buck converter
Thank you sir
Welcome
Sir right side resistance ka value kya hai ?
1k
sir please maike 1 video voltage regulator and auto cut off circuit combining and set a cut off voltage.please sir.
Ok 😊
@@Electronic_For_You THANK YOU SIR.
Porque não mostra o valor do último resistor?
1K 1W Resistor!
can i use MJE3055?
Yeas
But MJE3055
can handle only 2A
Can i use 10 k potentiometer
You can try
Hello. What is the function of the output resistance and how many ohms is it?
Output resistance is 0.1 Ohm
Its work is when output shorted it drops voltage and transistor is not loaded short.....! Its a load resistance
Can i use 13005 transistor?
Yeas but it will give 2.5A maximum
Use tip3055
@@Electronic_For_You
Thanks 🙂
this use 220 ohm resistor ? = 02
Which one ?
On lm317 (220ohm)
At output (0.2ohm) 5W
Sorry bro,I use all the same element,but I can not output the same current as you,What could be the problem?please tell me
Did you connected all same way?
@@Electronic_For_You yes,I only change the resistance of 0.25 ohms, but I use two 0.5 ohms in parallel, because I can’t find 0.25 ohms, I think this should not affect
Not effect the work ✅
Because my power supply can only see the input voltage, I have adjusted it to 30v, but my maximum output current is only 0.5 mA
did you shorted the output??
Can I use tip35c
It works better
5w 0.25 ohm unavailable but 0.1 and 0.3 ohm 5w available. So which can use? And output shorted resistance value and watts?
You can use
0.1 ohm to 0.5 ohm ( 0.3-0.5 best )
And the output last 1W 3.3K ohm
@@Electronic_For_You 220 ohm resistance how much watts?
0.25W to 1W
Please do not short the output
@@Electronic_For_You I mean output Negative Terminal and Positive Terminal is open?
I mean when using do not
Short circuit the output + and - that can damage the transistor because there are no current limit you can use it as voltage regulator....
Why no Base resistor ?
Because it will effect voltage output
load resistance no not shown in circuit please tel the R-no
1K and 5W is recommended
thanks again
What is the value of resistance shown in the last?
Series or parralal?
@@Electronic_For_You seris
0.5 Ohm use 5W
@@Electronic_For_You thank you so much
Welcome 😊
Bro make an induction heater
Ok
Coming soon
Bro can we drive a flyback transformer using PNP transistor tip32c
@@hipeinfinate5995
no pnp will not work
What is the input voltage
I not recommend to use more then 15V
Very good ☺️
Thank you ❤️
How much current is power supply?
Current is limited by Input current
Please do not use more then 3A if orgnial transistor not used it can Blow up . At 5A
@@Electronic_For_You Thank you👌🙂
Amp control karne circuit banao
I did please check
I have not seen a single consumer of more than 200 mA, how can I believe that it can give 10A?
That was an old video
And this circuit can give 3A at best ... Sorry
Ye maximum kitne amp dega
5amps
Ano value ng resistor sa output na ka parallel
1K use (5W)
@@Electronic_For_You bkit sa video 1/2 watt yn. O25 5watts ito yn series
Series resistance is 0.25 Ohm 5W
.....
Parrarel resistor is 1k ohm .. 5W is recommend
Deberías de dar una explicación paso a paso
Ok
Maybe in future videos 😔
Hi, I put together the circuit and it doesn't work for me, I use a 12v and 5amp notebook source. I put together the circuit and it doesn't work, could you upload the diagram or what am I doing wrong?
Check The circuit well
Any like TIP3055 can change?
Any NPN transistor
Collector current 10A
50V should worl
So I can use 2n3055
2n3055 will be more better then tip3055
You can
Because the number of the two pins is different, I want to confirm the connection
Check out datasheet of 2n3055
Component wise ur showing 220 ohms but in video ur used 1k what is this
220 ohm works best
I don't have that at time
resistornya make yg berapa k om?
Please Tell me in english 😃
@@Electronic_For_You
how many ohms does it use?
5W one is 0.5 ohm
And the resistor at end is 1K better to use 5W one
@@Electronic_For_You
can it be used for ac current?
No No
12V to 25V DC
Better use big Heatsink
Assemble all the components on a vera board and do the soldering job...
Your way of doing things is half cooked food....
explation must to understand
Just a simple voltage regulator nothing more
Current regulator?
Brother output voltage check karne se kuch nahi hoga, tumne fan ka oscillator ko jala diya over voltage deke
He is showing current
No 🙂
Its ok I was checking short circuit current
this circuit is incomplite, we need aditional transistor to protect TIP3055 from overcurrent
It doesn't Drow current when idle! The design works well .. but recommend for 2A
Lm 317 linear voltage regulator is too stable, it doesn't work, it converts the drawn current into heat, it suffers power losses, I don't recommend it. Instead, lm2596 feedback, switched regulator with const. Modify Current Regulator. Available on my channel.
🙂 Both are different
Background, so boring yar.
Very Very Sorry 😔
اوکی
Ok 😊
Skema salah yang di thumbnail
Follow the video
You need to learn how to solder
That's a very old video,
Sorry for bad experience
Incredibly, another misleading video. If you will to use the multimeter to measure amperage, please, show me which kind the load is (coil, resistance, etc.). but, in addition, if you give it a load without a heatsink, both, the regulator (LM317) and in the transistor, they would burn, and we have seen the smoke, product of the internal fusion of the semiconductors when exceeding the temperature vs load
This regulator Works better then
the fake other show 😑
@@Electronic_For_You Oh yes...!!! for no more than ....200ns...see the second page of datasheet of 2n3055....and you see....of course, if transistor has an internal fusion...the regulator go to see the LORD (GOD)
😆
not good ..../////........,,,mmm///
Ok
No problem 🤷
But lm317 only output 1.5 amp...so how it can give 5 amp at output?
By using the Transistor added with it