How To Make Variable Lab Bench Power Supply

Рет қаралды 372,921

4 жыл бұрын

Buy electronic components: lcsc.com/?from_code=PL2019102...
Hi friend in this video I have made a variable bench power supply I hope you learn something from this video please like share and subscribe
Components
1x LM723 IC lcsc.com/product-detail/Low-D...
2x 2N3055 TRANSISTORS lcsc.com/product-detail/ST-Mi...
1x D313 TRANSISTOR lcsc.com/product-detail/Trans...
4x 10A10 DIODES lcsc.com/product-detail/Diode...
4x 1N4007 DIODES lcsc.com/product-detail/Other...
1x 100nF CAPACITOR lcsc.com/product-detail/Other...
1x 10uF CAPACITOR lcsc.com/product-detail/Alumi...
1x 100uF CAPACITOR lcsc.com/product-detail/Other...
1x 1000uF CAPACITOR lcsc.com/product-detail/Alumi...
1x 1K VARIABLE RESISTOR lcsc.com/product-detail/Poten...
1x 10K VARIABLE RESISTOR lcsc.com/product-detail/Poten...
1x 470 OHM RESISTOR lcsc.com/product-detail/Carbo...
2x 680 OHM RESISTORS lcsc.com/product-detail/Carbo...
1x 1K RESISTOR lcsc.com/product-detail/Carbo...
1x 2.2K RESISTOR lcsc.com/product-detail/Carbo...
1x 4.7 K RESISTOR lcsc.com/product-detail/Carbo...
2x 2 PIN TERMINAL BLOCKS lcsc.com/product-detail/New-A...
DIGITAL VOLT AMPARE METER
TRANSFORMER
HEAT SINK
VERO BOARD
JUMPER WIRES
Circuit Diagram:
drive.google.com/open?id=1n0y...
drive.google.com/open?id=1At2...
My Channels:
KIYANI' KI LAB / @kiyanikilab
KIYANI TECH / @kiyanitech
Instagram: / kiyani676
fecebook: / kiyanis-lab-1520512291...
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Пікірлер: 271

@jamesharrison2041 Жыл бұрын

when someone is trying to help me i very seldom criticize them' 'its just ''bad'' manors' ''''''now this guy is very ''smart'' and willing to share his knowledge with us'' just too help us out of the ''goodness'' of his heart''''''''''''and i see people ''criticizing him'''''''that i'snt right'''''''i wouldnt blame him if he never ''spoke'' to us again'''''' 'after all i'snt he just trying too help us'''''''james.

@FantaBH 4 жыл бұрын

I uploaded same few years ago , kinda fun how some videos are just forgotten on KZfaq. You have one flaw in your diagram, there are no balance resistors between power transistors which will cause that more current going trough one transistor than other, while it should be equal on both transistors. If you are lucky , difference will not be to high so you will not destroy power transistors. But danger exist . Since this is my favorite bench power supply I have to like every single video about it .

@bidishagayen9496 4 жыл бұрын

share your link

@leonardosantana9079 3 жыл бұрын

Excellent proyecto!! 👍. I needled exactly something like that 🙏🙏🙏

@basavarajshilwant6650 2 жыл бұрын

Brilliant idea & excellent work.

@zafar8mughal197 4 жыл бұрын

Wah kmal kar dia. Nice

@ardiankurniawan9108 3 ай бұрын

Best tutorial ever I see

@frosty129 4 жыл бұрын

You should consider putting a ballast resistor, something like 50 mOhm - 0.5 Ohm on the output (emitter pin) of the 3055 transistors so that they share the current and therefore the heat equally.

@forcovers438 4 жыл бұрын

Finally you uploaded it.... 😅😅, thank you so much bhai, as I needed this video the most...

@supuntharaka3267 4 жыл бұрын

superb...👍👍👍

@sergioreyes7780 3 жыл бұрын

felicidades excelente video, asi deberian de hacerse siempre, muy bien detallado, paso a paso, mejor manera de expresión, con respecto a los detalles del armado, el diagrama detalla a la perfección la forma de los elementos utilizados, PERFECTO

@jeu34sgu 10 ай бұрын

Ola me gustaría un sircuito así para una fuente conmutada de 1v a 50v de 60 amperes

@qadeerledtv5435 Жыл бұрын

Very nice project 💯

@s0me1usaw 3 жыл бұрын

I finally found a good circuit Thanks

@regis2424 2 жыл бұрын

Hello where do you get it please ?

@vobinhthu5299 9 ай бұрын

This project is very nice!

@peange3365 4 жыл бұрын

Waaaw... amazing diagram... 👍👍👍 thanks sir... from Indonesia..

@risangpuntodewo4089 3 жыл бұрын

Ya,...sama sama...😂😂😂😂😂😂😂

@tianstremonti8348 Жыл бұрын

Ngikutin skema diatas ko ga fungsi ya, entah salahnya dimana

@derivksongeorgekuriathra3222 2 жыл бұрын

Thank you sir for sharing your details about diagram for us

@electronicasancheztutorial8205 4 жыл бұрын

Muy buen proyecto

@oledtech9313 Жыл бұрын

Good job! rhank you!

@user-gr8mw3fn3r 4 жыл бұрын

Давно шукав таку схему,лайк

@wowinventions3187 3 жыл бұрын

kzfaq.info/get/bejne/mKtonZh4zMqxkmg.html

@asimtanha7287 4 жыл бұрын

Very nice

@alexandermorales8460 3 жыл бұрын

thank you my freind

@qadeer1685 Жыл бұрын

Nice ❤

@firstscan8209 4 жыл бұрын

this is a real demonstration how to diy ellectronics

@johnnystamboel7745 3 ай бұрын

I don't know how long ago this was uploaded, but i tried it and it works. How about an explanation of what is actually done by each part instead of just giving us something to copy. That would help me a lot in tryng to understand the circuit and troubleshooting it later if yhe need arises.

@stryder751 4 жыл бұрын

Nice build!

@wowinventions3187 3 жыл бұрын

kzfaq.info/get/bejne/mKtonZh4zMqxkmg.html

@egemendir 4 жыл бұрын

Hi, How much max V does the input support? Also, a very easy good recipe. I have never seen better than this.. Congratulations.

@ziadfawzi Жыл бұрын

Thank you.

@forevershine4267 2 жыл бұрын

thank you sir🥰

@devuaudio6785 2 жыл бұрын

Super video

@garymucher9590 4 жыл бұрын

You showed where to get every part BUT the actual power transformer. To be able to provide 6 amps, means the transformer has to be large enough to provide that current capability and maybe a little more. Also, instead of trying to find a transformer with two secondary outputs, forego the 12 volt output and use a 12 volt regulator after the bridge circuit off the 25 volt output. An LM7812 will provide the meter power with no problem. Just install it after the 25 volt output bridge and filter circuit. Then you can eliminate the (4) 1N4007 diodes and C4 100mfd capacitor as well. Just an idea...

@tonyrebeiro 4 жыл бұрын

Voltage variation when load is removed, is not expected on a bench PSU. It could damage something else, connected in parallel at the output.

@eng954 4 жыл бұрын

Maybe it is because of the current is more than 6 ampers. and exceeds maximum current which ps can give. if it is the same for all loads it could damage the devices.

@rich1051414 3 жыл бұрын

Such a simple fix. It should be monitoring the voltage after the transistors, not before them. Transistors are current amplifiers, so the voltage out will depend on current. Whichever pin is the negative feedback on the LM723 shouldn't be connected to the Red but instead the orange output wire.

@ogrelg4131 3 жыл бұрын

а огромные пульсации выходного напряжения при 6 амперах тебя не смущают? ахах. смотри, у него конденсатор на 1000 микрофарад всего. и еще куча всег овключая компенсацию в 0.1 микрофарад

@debihsofiane3229 3 жыл бұрын

Thank you

@rasityazrl9855 4 жыл бұрын

👍

@valdomirosilva4127 3 жыл бұрын

A great project Bro! Can I use a 12 + 12 transformer? How many amps? Thank you very much !

@HaiderAli-ej2kq 3 жыл бұрын

i like your soldering. please tell me some tips how to do line soldering.

@edinking2725 Жыл бұрын

There is to high voltage drop when connect load. I think that the pin3 of IC723 should be connected with emiters of output transistors.

@edinking2725 Жыл бұрын

I made the same device according to the given instructions but it didn't work as it should. The voltage was not stable after connecting the load, it dropped by 0.5 to 1v depending on the current. After I connected pin3 of the LM723 to the emitters of the output transistors, everything worked perfectly. The voltage was stable both under load and when the input voltage changed.

@theGamer-kt9pf 10 ай бұрын

Hai man I have some questions please answer them 1) Did you directly connected pin 3 of the LM723 ic to Transistor emitter ? 2) Or have you used any resistor in between pin 3 and emitter of Transistor if yes then what value ? 3) pin 3 needs to be connected to D313 Transistor emitter or 2N3055 Transistor emitter

@rarazib4920 2 жыл бұрын

Thanks

@JatinderSingh-qf9lu 3 жыл бұрын

Regarding transformer you prescribed 12 + 25 v , which type of transformer needed

@hosseinfallahian4518 4 жыл бұрын

thank you.very good

@davidch880 4 жыл бұрын

Kiyani my friend, you've goofed with the Schematic or the parts layout mate. On the schematic, you show pin 10 of the LM723 in junction with your 680-ohm resistor and the base of the D313 (which you show in the schematic as a TIP 41) but in your parts layout diagram, you show the LM723 pin 10 isolated. Were you aware of this or did you miss it like most other posters here?

@jayocampo5037 3 жыл бұрын

Yeah thats what im saying

@dongamer2513 3 жыл бұрын

I saw that as well. Didn't miss it !! Not sure which is correct.

@DaniyalElectronicsWorkshop1 Жыл бұрын

Good o

@ctbully 3 жыл бұрын

Hi, Could we see a modified version of this circuit where its control loop is driven by a microcontroller using PWM for CC CV modes please ?

@amitghosh6966 3 жыл бұрын

Please also make dual tracking power supply for + gnd and - voltages

@erdum 4 жыл бұрын

very well iam also going to make it because it is linear i also have switchmode one but linear is good for sensitive circiut 👍👍👍👍👌

@erdum 4 жыл бұрын

@Surge Power Technologies power out put depend on the output voltage you selected if you selected higher voltage and your transistor have no heat sink so you can use current through it almost 2 Amps without any problem 2 Amps not the last limit value but without heat sink 2 Amps is working good with voltages 8 to 15 or higher but when you selected lower voltage below 8 volts then be careful use heat sink or without heat sink not must be cross 1 Amps or more because all the voltage across your transistor will be dissipated by heat

@erdum 4 жыл бұрын

Selecting higher voltage means for example your input voltage is 12 volt so selecting higher means select voltages between 12 to 8 or keep the difference less between your input and out put voltage in order to consume more current

@muhammedadil4463 4 жыл бұрын

Bro I make it but it doesn't show any output voltage what's the reason bro

@erdum 4 жыл бұрын

@@muhammedadil4463 check your conection properply beacause if you did something wrong in circiut it will give you output voltage no matter what is the problem and double check your volt meter maybe it is not working and you blame the circuit and also check all connections properly

@muhammedadil4463 4 жыл бұрын

@@erdum voltmeter is correct bro all connections is properly connected I am use 24-0-24 5amp transformer

@ashadzakariya6810 4 жыл бұрын

Bhai...it wud b great if u u start providing pcb so that it wud b easier for us to make the pcb board

@wowinventions3187 3 жыл бұрын

kzfaq.info/get/bejne/mKtonZh4zMqxkmg.html

@KIM-hy4kj 3 жыл бұрын

I tried this cct a few times but failed. Wonder why the no. 10 pin of IC LM723 (V out) has no connection to it?

@prof8957 4 жыл бұрын

Nie and clear ! May I please ask what are the maximum output voltage and amperes can the circuit produce?

@jamesharrison2041 Жыл бұрын

I don't know if he ever answered' 'but its normally around 6 to 8 amps per pass transistor' 'voltage adjustable from 2 to 37 dc volts''''i know its a little late''''but did this help you.......James,, Oklahoma.

@hichamtassi1753 3 жыл бұрын

Hello, nice video ! i plan to follow it and want to know first if it will occur a big voltage drop. I did another one with TIP35c, LM 317 and DB139 and with a small load, more than 2v drop. The supply is strong (650w ATX). Thank you.

@jamesharrison2041 Жыл бұрын

normally the capacitor controls the voltage drop''''' the higher MFD of cap the minimal of any voltage drop'''''use a bigger cap or many smaller caps and you should have minimal voltage lowering when the ''load'' is applied'''''''james''''oklahoma.

@colin55111 3 ай бұрын

Buying a 6 amp transformer is very difficult and costly. That's why they invented switch-mode power supplies. You are going back to the ark with linear power supplies with all the heat losses and voltage dips and size and weight and expense. I have done the same thing with a set of lithium cells and a charger for less than 10% of the cost of this design. You can tap the cells and add diodes to get any voltage you want and the output is more than 10 amps. Think "outside the box" whenever you design or build a project.

@alexandres8846 4 жыл бұрын

Great proyect the lm723 is the best regulator for analog power supplies. I'm have 13,8 vdc samlex power supply for modification to variable!!

@dushyantverma8890 3 жыл бұрын

You can use a tl431 ic for more stable output which doesnot rise even if load is removed

@jamesharrison2041 3 жыл бұрын

or a ECG-923D

@abdennour183 3 жыл бұрын

what about the amps, it's also adjustable ?

@dwayneclarke2314 4 жыл бұрын

good video but whats the other variable resistor for?

@hichamtassi1753 3 жыл бұрын

Hello, why do you have this voltage drop from 12v to 10v when you put the load ? can you avoid that ? thanks

@routkashi50 4 жыл бұрын

Sir 2sd313 mosfet alawa aur kaun sa mosfet use karsakte hen.pls ....

@mareksvrcina5279 4 жыл бұрын

Connecting the 2 BJTs in parallel is not quite a good idea, as one of them will always carry more current that the other one although they are one the same heatsink. Anyway, i think that the circuit is pretty good and I really the quality of the video itself. Good job!

@vlmg007 4 жыл бұрын

you can use current resistors in every emiter 0.1 Ohm 5W is ok

@mareksvrcina5279 4 жыл бұрын

Yeah, but although adding a resistor to the emitter is possible, a 0.1 ohm one is not quite sufficient to keep the currents on the same level while adding higher resistance is making it worse by creating more heat in a high current application.

@TechnologyGuruBD 4 жыл бұрын

Which is the simulation software you have used

@arkascreations 4 жыл бұрын

plz tell me d313 transistor alternative transistor can i use for this process

@ashari2877 4 жыл бұрын

Outputnya Berapa volt dan berapa ampere....? Apakah bisa jika input menggunakan transformator Bekas UPS CT 6-0-6 5A....?

@seyvanbuokani1675 Жыл бұрын

hi sir .nice very nice. what other amount can be used instead of D313 ??

@gulabk65 4 жыл бұрын

Good morning

@edwinmendez1546 3 жыл бұрын

Could I have the circuitry map, please? I really appreciate it. Thank you, Indeed.

@bhagirathimangraj1819 3 жыл бұрын

Witch application u r using for designing circuit????

@tonyprima7777 4 жыл бұрын

Hi, what software do you use for creating that color schematic?

@TheFactLabcuriosity 8 ай бұрын

hey, bro what alternative could i used if there is no 12v 0 25 v transformer available?

@Tariqlhr9 3 жыл бұрын

Bro can I use D1047 or 2SC5200 Transistor instead of 2N3055 ???

@ElectronPCFix 11 ай бұрын

Ok thanks but what is all the other bunch of components doing on the factor assembled Linear DC power supply? What is the difference between yours and the factory one?

@devkhetade8053 3 жыл бұрын

Alternative for input power

@michelemarchese259 3 жыл бұрын

Hi, how many ampere can it deliver? Thank you.

@olivierbouchez9150 4 жыл бұрын

hî it would be better if you explain the logic in the circuit.

@electronicsdevelopers319 4 жыл бұрын

Can we give input 24v and 3 amp transformer??

@kryptocat4240 4 жыл бұрын

Bhai current ko vari karsakthe hain kya is circuit meain

@arvindh13 4 жыл бұрын

what is the output voltage and current of the transformer?

@seyntwyatt2578 Жыл бұрын

Hi! How many Volts is your supply? Thank You!

@devkhetade8053 3 жыл бұрын

Transformer1-12v and transform2- 25v esa alag alag transformer use kar sakte haj kya??

@totanpaltotanpal4817 4 жыл бұрын

2n3055 transistors are parallels connection

@vijaychavan9884 3 жыл бұрын

in this video you have not mentioned wattage of resisters you are using which most of technical youtube videos do not mention wattage of resistors used for the projects which is important . please do mention same in your future videos vijay chavan

@waltervaldivia2399 4 жыл бұрын

Very good video, I really liked it. Do you have a regulator circuit that regulates the voltages and amperage of a power supply that give 1-30 volts and 10 amps of current? I am not talking about the whole power supply but only the part of the regulation. If you do not, I would appreciate it if you could do one in a future project. Thank you

@wowinventions3187 3 жыл бұрын

kzfaq.info/get/bejne/mKtonZh4zMqxkmg.html

@prydin 7 ай бұрын

This supply will suffer from high voltage drop and poor current limiting since there’s no feedback from the actual output l, but only from the low current path to the output transistors. There are many much better designs out there!

@newscientificdiscoveries6228 3 ай бұрын

Where I have some problem

@renjithnair8833 3 жыл бұрын

which software is used for circuit presentation.....

@oofoof2757 3 жыл бұрын

how can I get this project to 60v and 5amp? My Transformer has windings of 34 volts. Thank you

@excelcreations7318 3 жыл бұрын

Can input 40v for this circut

@jackmedina8154 10 ай бұрын

Are the 12 volts only for powering the voltmeter ammeter?

@TheFactLabcuriosity 8 ай бұрын

hey bro what size of vero pcb should i used for this power supply

@jorgeluislaraotiniano5307 3 жыл бұрын

X favor no c si podrían hacer videos también en español latino..., gracias

@metalicharsha 3 жыл бұрын

why you hv to use 2 bridge rectifiers?

@hichamtassi1753 3 жыл бұрын

Hello, how to reduce the voltage drop ? this is annoying to see volts decreasing

@anupkundu8395 4 жыл бұрын

Sir get the circuit diagram

@krisea3807 2 жыл бұрын

What Amp is your Transformer?

@laishramaken5208 2 жыл бұрын

I also assembled this circuit but not working, I think pin 10 of IC is leftover you have to clarify the circuit.

@user-rd1vh7nu4b 3 жыл бұрын

Can you make a video of how to manufacture thermostats

@KiyanisLab 3 жыл бұрын

ok bro

@premvrihana4040 3 жыл бұрын

Which software is used?

@poukhangpanmei5315 3 жыл бұрын

Instead of using LM723 ic can we use another ic .....?wht ic can place ther......?sir

@PuranjayKashyap 3 жыл бұрын

Its 25v dcor 220v ac ??

@mohitsorout6669 3 жыл бұрын

What is the software name which is use for ckt diagram and presentation.. ???

@zubairahmad4109 3 жыл бұрын

please you can make a push button power supply

@bhagirathimangraj1819 4 жыл бұрын

Kaunsa app use kar rahe ho bhai

@YSNperformans 4 ай бұрын

1N4007 diodlar ne işe yarıyor ? Görevleri nedir ?

@bjj6708 3 жыл бұрын

At 10 min 13, layout doesn't show pin 10 connected- that is the LM723 regulated output. You sure this works?

@regis2424 2 жыл бұрын

Hi, i have a variable power supply 0-24 volts…0-1 amp. I read a lot of comments, and some peoples said, they saw a lot of mistake with your project or missing parts. I just Want to make sure your diagram is ok , for m’y project, m’y board is broken . And also your vidéo is not clear about the connection of the power supply. Can you fix that please, for all the people who wants to do your piece. Thank you.

@KiyanisLab 2 жыл бұрын

yes it is correct and still working fine

@regis2424 2 жыл бұрын

@@KiyanisLab Hi, Kyanis, can i use a 2N6124 to replace 2N3055 TRANSISTORS ? Thank's

@3ngineer427 3 жыл бұрын

Hi, I don't wanna be rude but, it seems you guide people to how they can wire it. I'm looking the logic behind it could you help me about it? I mean I knew what does clamper circuit or full bridge rectifier doing. But I'm not sure how you choose your resistor for that IC's. I want to be a good electronic designer but it seems puzzle to me. I am looking reasons for every steps. Do you have any suggestion?

@TutorialsGuru 3 жыл бұрын

For that Study Analog Electronics Circuits, Digital Electronics Circuits, Advanced Electronics circuits.. These 4 Engineering subject can clear your doubts and you can be a good designer. It takes time but yes. Math, Physics, Chemistry, Thermodynamics of 12th level should be clear to you to start these subjects. It's not difficult but there is no quick way to learn it.