1 - 30 V | 0 - 10 Amp | Variable Power Supply With Adjustable Voltage and Current | DIY Electronics
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- เผยแพร่เมื่อ 18 เม.ย. 2021
- In this video we will learn how to make a Variable Power Supply With Adjustable Voltage and Current which can go from 0 - 30 V and 0 to 10 amp in current. For more videos subscribe to this channel and press the bell icon for personalized notification for every new video uploaded.
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In this video we will learn how to make a Variable Power Supply With Adjustable Voltage and Current which can go from 0 - 30 V and 0 to 10 amp in current. watch the video till end. give your reviews in comments
For more videos subscribe to this channel and press the bell icon for personalized notification for every new video uploaded.
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Links for components
2 pin terminal blocks : amzn.to/2Q6HPwV
Rectifier Module : amzn.to/2RNfZWQ
4700 uf 50 V capacitor : amzn.to/3gqi4SK
LM317 : amzn.to/3mWJjFS
BD139 transistor : amzn.to/3mZLHLT
5 K pot : amzn.to/2RHYdUN
10 K pot : amzn.to/3x7nRCI
1 ohm 5 W resistor : amzn.to/3xaL7jo
2n3055 : amzn.to/2RQ67vD
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exactly what I was looking for, to teach as well as demonstrate. You earned a new sub sir!
Thanks 😊
Verynice i make that and working very fine dhanyabad 👍
Bhai, aapne AC ko control karne ka banaya hai?
Sir 👍bahut acha batya sir jab soldering krte hai to us waqt agar dikha ke kre to Koi glti nHi hogi beginners se dhanyavaad sir
Fantastic !!
Nicely explained tutorial backed with knowledge and facts. Highly appreciated.
I just arrived and become huge fan of yours as your videos are completely filled with logical knowledge.
Sir your video is superb ...can u add digital voltmeter ...so that we can see voltage and amps on voltmeter???
Yes it can be added
I ll share the circuit in the description in few days
MANY MANY THANKS 👌
TEKNOISTIX Sir and TheTiaraTech Show sir aap dono ke videos me similarity ye hai ki aap full information dete hai, circuit diagram, coding samzate hai. Engineering students ke liye best ho aap. keep up the good work.
Very good video. All things well explained. Even an ordinary electronic enthusiast will understand the things nicely.
Well done again. Congratulations !
A smoothing electrolytic of 1,000u delivers a ripple of about 5v for a supply of 1 amp. This is RULE OF THUMB to remember when designing a power supply. So this supply needs 10,000u minimum.
when the output current is 10A, each resistor has current of 5A, so the voltage drop on each one ohm resistor is 5V. in this case each resistor should dissipate 25W, while your resistors 5W only !
Yeah that's why the only people who compliment are beginners
Your calculation is only correct in the event of a short circuit. With normal use, a few volts should still be available for the connected load, i.e. the voltage drop across the resistors should not be 5 volts.
The weak points are rather the small capacitor after the rectifier and the undersized heat sink. Calculate the power dissipation of the transistors when a small voltage with a lot of amperes is set.
@@wernerpeter9706 no difference. Short circuit in a cc supply does not necessarily mean highest current. Power resistors are under rated
@@wernerpeter9706 also in case of full load which is 10A , my calculation is correct
Sorry - that was actually a 1 ohm resistor on the emitter, so in the end I didn't look properly. Yes, you are right, this is a nice heater. 0.1 ohms would be enough to stabilize the load. But then there are still the problems I mentioned.
Great explanation and demonstration. Keep up the good work! It would have been great if we could see how we can implement a voltmeter and ammeter to visualise the outputs.
Gentleman, you have explained very clearly. You are a master of the subject.
Thanks 😊
The 5 watt resistors will get seriously hot when 5 amps is flowing and will FALL OFF THE BOARD. They need to be heat-sinked via large tracks on the underside of the PCB to prevent them falling off.
The whole layout is a complete disaster.
Remember this:
Power supplies up to 1 amp are easy to design as most component will allow 1 amp to flow for a short period of time.
When it comes to 2, 3, 5 amps you have to heat-sink everything .
And when you get to 10 AMP you have to know WHAT YOU ARE DOING. The heat dissipated in EVERYTHING becomes enormous and nothing in this project has been designed correctly.
Just build it and try to deliver 10 amps and watch everything GO UP IN SMOKE. Send us videos of everything smoking !!
You put 2 resistors 1Ohm 5W . If the output current is 10A it means that through 1 resistor flows 5A current. P= I*I*R in this case P=5A*5A*1Ohm=25W it means 5 times more power than it can reach ceause it's only 5W. Maximum output current you can withstand with these resistors is 4.5 A.
If it 4.5 Amps there will be a drop of 4.5 volts...
This guy knows nothing. He copied this from a common exam question without figuring out the answer.
This is a sad statement of the clickbait coming from the Indian EE want-a-be community.
If the transfomer is 30 volt out . This circuit is maximum 2 amps
1405. Minutes. 0 is removed. Than the current is 2.5 amp
This supply will not work the output voltage drop will be significant.Just put multimeter on this supply output.Then aimply attach a twisted pair wire on output without any load attached to wire u will see voltage drop.There is no load yet output voltage will drop.Transistor will conduct uncontrollable just with wire.
Ap ka samjhane ka andaz bahut acha he
Thanks 😊
I really like all ur projects as ur presentation has clarity with neat demo of both diagram n components.n very reliable.
...If the voltage is close to zero volts and the current draw is 10 amps, each transistor will have to dissipate 150 Watts...
thank you so much sirji aap bahot acche se padhate ho.
koi saval baki nahi rah jata. sab javab ek hi video me mil jata hay.
Waheguru Ji Ka Khalsa, Waheguru Ji Ke Fateh.
What a Simple and Clear Explanation.
- Fan from Kerala..😊👍
👍👍👍
Thanks 😊
The best video of this category. Very nicely and cleanly explained. ,👌👍
Thanks 😊
A pleasure to watch and learn from this video like your last one. You may please ignore my proposal I had stated in your last video comment because the same is very nicely answered here. Thank you once again.
Thanks
I always try to go step by step in my videos
Firstly i covered the simple fixed power supply
After that in this video i moved to a variable one
And there is one more video in this series in that i have added a volt current display also and also assembled this circuit in a wooden box.
Nice work using a audio power transistor for this. I am going to use this on a power supply that I built.
Thanks sir 🙏..
I have one question to ask you, about current
Transistor where u assembled a variable resistor...when current increase when supply on base is high or low..?
Thank you so much sir for you're knowledge distribution to we app ke samjhane ki tarika&app ka dheemi awaz amazing
Thanks
THANK YOU VERY MUCH FOR THIS EASY TO UNDERSTAND AND USEFUL TUTORIAL....
😊
आपका detailing बोहोत ही अच्छा है। कोई ऐसा साइट बताइए जहां सारा कंपोनेंट्स एक ही जगह मिलता हो।
Most of videos me mai description me components k link de deta hu
PS design is my favorite, plz keep it up
It's a good video for electronic student and technician.
Thanks
I really appreciate your professionalism and you are the most qualify Engineer on TH-cam. Would you kindly demonstrate old ATX 12 volt DC PSU to increase to 13.75 volt DC so that it can charge 12 volt battery properly. Your response will be highly appreciated.
Thanks for the compliment
You can use the boost converter with 12 v output it will give you controlled output
@@TEKNOISTIX Thanks for your prompt response.
Paaji tussi great ho... Aapne sab achhe se smjhaya
Nice PCB TRACKS, good Video, Recti-Bridge needs Heat Sink for Max 10Amp Load.
For Current settings, we normally short output & adjust the Max Current limit, instead on load as is shown?
sir ur video is the best vs other youtubers. continue sir
thanks
Very clearly demonstrated....calm & clear tone.👍👍
Thanks 😊
Sir, your videos are very interesting. As regards variable power supply, is it possible to have provision for adjusting charging current in our Inverter when we replace the battery with a different AH value ?
You can Use this circuit as battery charger too
It can give you higher current
Very good and useful video,, good explanation, Thanks for sharing such a great technical experience.
Thank you sir, I was expecting this video from you. 👍
👍🏻
I made it. It works! Thanks 😊😍
No need to say your work inspired others. Simple and best explanation that common man can aslo understand. Can pls made a this all 0 to 10 amp and 0 to 30 volts bench adapter for me. What will be the cost I will pay you online.
Hello sir. As a student I am a subscriber of your channel. Your teaching system is so much better. I am learning Electronics project in good way. For this Thank you so much. I have a request to you, please make a Rechargeable LED Automatic Light with best circuit design and best back up time. Have a nice time.
I ll do it
@@TEKNOISTIX Thank you so much sir.
Very kind of you sir, Great video. I will make this one day and will ask if anything was not understandable. THANK YOU VERY MUCH
You are most welcome
Sir aap bahut hi achha samzate ho thanks
Thanks 😊
very good project and nicely explained by you. It's Very Easy to understand and Make by learner
Parabéns pelo vídeo.
Teria como mostrar um projeto para controlar com 2 dimmers 1 para controla a tensão e outro a corrente no 127v/220v CA, e limitar a saída no máxima em 20v.
Surdarji lovely way of explanation any one can understand and built the project
Keep it up!
Thanks 😊
Excellent presentation. Very good. Thanks.
Very informative video thank you for making such good video. If I am making any project how could I come to know what is my RL or object current rating?
Just add a current meter in series of load it will show the current consumption of load
You are a great and skillful professor
Thanks 😊
Good demonstration about circuit from start to output thanks
Wonderful variable power supply TKQ learning a lot from ur videos
Thanks
New project again sir, its work nice👍👏👏👏
Thanks
Respected sir , please display subtitles in English .
Thank you so much for shearing your knowledge .
I am from Sri Lanka .
Sirji,
Excellent explained and video. Soldering tracking very nice in looking as well as working.
Maza aa gaya jabardast sir ji.
Sir mujhe chahiye 1-- 30 amp tk adjustable .
Aur 1-- 30 volt adjustable
Power supply taki isko power supply aur short killer ki tarah use kiya ja sake. Short killer 5000 ka hai aise saste me bat ban sakti hai
Great explanation and demonstration.
nice explanation !
can you explain how to make it without transformer to get 30v AC ?
Good circuit. Excellent explanation and very vivid demonstration. 👍
Thanks 😊
2N3055 is a npn transistor but you working the pnp operating , how this possible sir
Check carefully
It is connected as npn
This circuit can be use you're over current protection circuit..??
Pleace replay.
Yes
Thanks very nice video I learnt so much from you
Thanks to tell me if can install a short-circuit protection in the power supply if yes thanks to make a video how to do it if possible
Your Explanation is very nice you are great sir
Muito bom ! Very good 👏👏👏
Thanks 😊
Sr apaka mo no plz send me
Aap ka video bohuti achha hai samajhnama
Thanks 😊
Can I use 0.5Ohm 5W resistors? Great explanation. Thanks for your videos.
This is a nice circuit and wonderfully explained.
Thanks
Nice video. what was the output voltage when you applied the load? does it vary when voltage increased?
I made a next part of this video with load and voltage current meter attached to it
You can watch that, hope that will clear your doubts
Sir very helpful..thank you😄
👍🏻😊
Namaskar bro, excellent tute. thank you.
But i already got Old PC ATX power supply with 3, 5 and 12 V pinouts. Please make another video on using 12V DC to this Variable Volt & Current extension! will appreciate as it would make All in one capable power supply.
I ll try
@teknoistix Sir can we use this atx 12v supply with high amps in this circuit... Pls tell sir
Not recommended
Good explained. Thanks.
Can we provide supply from SMPS in stead of transformer.
Excellent demonstration.
will the regulation at load be good? you have used 1 ohm resistor at the o/p... there will be voltage drop across it..nice video....i searched for the next video...but i could not locate it... nice video amanpreet singh bhai!!!
Excellent explanation... I ve one doubt... At the end u have limited the current to 1amp and connected the load of 3A. Will it not have any adverse effect on the circuit.
Love Your work Sir 😍🇮🇳
Thanks
Amazing video Sir, it help me alot to make a variable power supply for my DIY projects.
But i want to know one thing , if I don't want to controll the output current with any transistor. So, in that case, can I connect the base of 2N3055 power transistor directly with the lM317 IC output, or does it require any modifications.
Thanks bro, very informative. Tell me one thing about your supply. While drawing heavy current, load regulation increases or not?
It will increase
@@TEKNOISTIX sir how can we make a linear power supply with minimum load regulation?
You need to add a feedback circuit
Nice and very helpful video, thanks. Sir BD139 ko heatsink ki zaroorat to nhi?
No
Excellent well explained i will try
Bahut badhiya explanation hai sir ji
I am going to do the same project
Moral support pl.
👍👍👍
Hi sir, very nice and useful video. Thank you sir.
Thanks 😊
@@TEKNOISTIX Hello sir, ma same ek power supply banaya hai Lakin ek problem Face Kar h ji without load par ek dhafa voltage ziyadha karegatho kamthi karneka time bahut slow meh voltage kamthi o rahai hai sir koyi load deyakatho problem Nahi hai sir keya problem o saktha hai sir pls
I didn't get your question
20amps ki PS bhi design Karen. Very thanks and so much grateful
very good power supply. please supply one piece for personal use
Sorry dear
I make videos for education purposes
I don't sale this circuits
hello sir
I Micky, i am following you for a long period. Sir, i want to make this supply along with SMPS board in a AC stabilizer box ( I have a burnt stabilizer). I have 10 amp. 12-0-12 transformer but it is big to install in the box. can i give input supply of +12 and -12 from smps instead of transformer. what will be the maximum current and votage? kindly reply sir. ( I By mistake post this question in your another video, SORRY) Your videos really inspires
Very educative without irritating background music. Sir, I'm 60 years old, I request you to add 4 digit digital voltmeter and an ammeter
th-cam.com/video/3C2r0QKTyd4/w-d-xo.html
Added
2n3055 ke badle 5296 ya uske jaisa koi aur transistor lga skte hai jarur btaya plz
Please explain how the current control circuit works, Thank you.
The circuit does not have CURRENT CONTROL. It has VOLTAGE CONTROL and the device you are supplying will take CURRENT according to the voltage you deliver to it.
Exactly i waz searching this video
Nice Explanation, i like your videos
Thanks
Transistor ki jagah MOSFET Laga sakte hay kya ??
Agar MOSFET lagana ho to kya chenjis Karna padega.
Thanks a lot brother very useful
Sir nicely explained..but I wish to get more informations on this cct..mainly how it controlling voltage and current together finally. Please sir..
Saludos desde PERU. (spanish)
thanks
Very helpfull video sir ji
🙏🙏👍
Thanks
Sir ji, Would greatly appreciate if you could explain the circuit & working of a DP Led 716 & 720 Led Emergency led lamps.
Thanks🙏🙇
al parecer explica muy bien y es muy didactico ,me llevo por instinto y tengo una pequeña base de electronica , seria bueno si lo pudiera traducir al castellano ya quesoy de latinoamarica desde ya muchas gracias y mil disculpas.
Very good Video. Thank you very much sir.
Umda and informative video sir thanks
Super 👍🏻👍🏻 🇮🇳 || Kuki
Great explanation. Thanks
Thanks 😊
Sir your video is too good .sir please make this video with over current protection and sort circuit protection
I ll try
Very nice videos 👍 thanks
Very nice and a knowledgeable video thanks
Thanks 😊
Thanks Brother ..it really helps
Thanks 😊