How to make Adjustable voltage by transformer 3A with transistor 2N3055

[@betocaamano5789]

Excelente trabajo, muy explicito y muy práctico, Me permito hacer una observación: En el minuto 7:40 sugiero que el cable amarillo debe ser conectado a la pata Vin del LM317 para poder así obtener lecturas inferiores a los 4VCD el resto: MUY BUENO.

[@edgarmendez4398]

Una pregunta Beto, no sería mas.bien el cable.rojo de alimentación de el voltimetro/amperimetro alimentarlo directamente de la salida positiva del puente de diodos y el cable amarillo en la salida de voltaje ( proveniente del emisor del 2n3055 y las resistencias de 1.5 Ω) para que así pueda medir voltajes menores a el de la alimentación del módulo v/a(4 v) y no se apague dicho modulo al regular un voltaje inferior a los 4volts? Gracias 🙏

[@talfinson9242]

​@@edgarmendez4398Cual es la función de esas dos resistencias a la salida?

[@edgarmendez4398]

​@@talfinson9242Disipar

[@RajuMukherjee-uz1bw]

Aapka video ka dikhane ka Tarika bahut achcha hai Aisa koi itna saaf suthra nahin dikhata hai achcha Laga❤❤

[@keithking1985]

I have all these parts put aside to build a PSU similar to this but never got round to building it.. must put one together when im not mad busy. 😊

[@alltidstibbe]

Magnificent. I have done something similar but with only LM 350K. It can handle just over 3 amps. With a 24 volt transformer the output voltage is 1.2V up to 30 volt DC. Built in 1980 and still holding.

[@electroniclifehacks2405]

Thanks for watching

[@faridi-bin-Zouq]

with 24V transformer out put up to 30V......Lovely......what a joke..

[@talfinson9242]

Why use that 2 resistor???

[@agustinrojascastillo90]

Muy buen trabajo, si le conecto un cautin para regular la tension se caera esta.

[@cbksaleemyoutube4613]

Excellent. Your method of explanation is wonderful and revolutionary in the world of electronic. It can be followed every one. So that a beginner like me can understand very well. Thank you.

[@ravikumarsivanandhan2361]

Super sir Really great It is very clear Can you send me the components list

[@chris532008]

have an arista power suppluy with that 2n3055 transistor need to reconnect that transistor to board any ideas where those wires of base emitter connect

[@ЭдикБанщиков-ю7м]

Молодец мужик! Все так подробно и грамотно

[@talfinson9242]

Why you use 2 Resistor at the OUT voltage?

[@aaftab806]

Connection is wrong.... But project is very nice

[@legpetruchka2124]

Très bonne vidéo et surtout la manipulation avec Paint qui explique bien. Well very! intereting Thank's

[@jean-claudeseurot221]

C'est parfait . De plus, je ne trouvais pas la solution pour brancher ces foutus Voltmètres/Ampèremètres chinois ... se repiquer sur la masse DC du pont de diodes.... je n'y avais pas pensé.. Il faut dire que le net est truffé de montage à la con.... surtout quand la source d'alimentation est unique... Merci!

[@electroniclifehacks2405]

thanks for watching

[@elyankh2345]

+Electronic Life Hacks thank you .but very important to know the valuo of every electronic set

[@ismailbozkaya3085]

270 ohm resistör warmed burned

[@parmeshwarnikam2]

Very good .nice explain.

[@electroniclifehacks2405]

Thanks for watching

[@طارقالمخبرالتقني]

يبدوا صاحبنا من الهند احسنت ... واصل

[@Seba-bg5ye]

Great!!, what i was looking for and excellently explained for people like me, newbie in the electronics, thanks

[@electroniclifehacks2405]

Thanks for watching

[@rameshtripathy5978]

Excellent demonstration and it is helpful to students ,hobbyist and application engineers in the field of electronics !

[@kuatslamet9681]

Waduhh..ra dongg🤣

[@arielvalencia2260]

Excelente tutorial que ya lo reproduje, mi inquietud es si le puedo poner un transformador de 30 voltios ya que no tengo experiencia en electrónica solo lo hago por pasatiempo que me quedo de la pandemia del virus-19 en la que no se nos permitía salir de casa. Gracias

[@projetistadegambiarras]

fiz minha fonte ingualsinha a sua fucionnolu perfeitamente, no lugar do potenciomentro coloquei um zerner de 13 volts e no lugar dos trasitores 2n3055 coloquei os bipolares mje 13007 . ta com 13 voltes de saida e uns 20 ampres fuciona muito bem em um som altomotivo

[@yo9htz]

What's the point of the two 1.5 ohm resistors? As you can see the voltage drops from 13.3V to 12V. That is not a regulator, it is a simple emitter follower. In order for this to be a regulator you need a feedback to the output of the LM317. That's why it doesn't work properly.

[@usahapetani9743]

when you put higher load, resistor 1.5 will slowly started the load. if does not put it, load will blinking(light bulb)

[@usahapetani9743]

try to watch channel (sorin- electrical nerd) find cordless video. you will better understand.

[@jago5300]

I really liked how you showed how you did it. Great job, but it does look (FUBR)

[@JossinJax]

pfff lol

[@juango47]

Excelente video, yo tenía problemas para conectar el display digital en la fuente y solucioné. Gracias por compartir!

[@rameshannair1617]

87v

[@guillermoyanez1805]

thank you so much just because of you I learn excellent power supply

[@electroniclifehacks2405]

Thank you

[@pedro99784]

mis respetos para todos los que nos enseñan su trabajo y de los cuales he aprendido mucho,..pero este se me hizo muy bueno,..excelente

[@adityashivhareelectronewto7861]

you will be a successful youtuber not immediately but definitely

[@electroniclifehacks2405]

Thanks ou

[@pankajchaudhary5640]

Very good sir love you so much,😍😍😍

[@myanmar8044]

I am beginner electronics, no education your video is help me alot

[@bunheang3777]

Woo! nice idea friends thanks for sharing

[@electroniclifehacks2405]

thanks you

[@shaun1283]

Yeah like it too ja go the way he draws the wires makes it easy for me to understand and see the connection, Great stuff thank you E 😎

[@alejandrocarlos1661]

Hello friend, good morning, good project, the one you explain in the video, I really congratulate you. friend I have a transformer of 31v and 7 amps, tell me, I can use it in this project too, please, if it were kind, tell me yes or no. take care and thank you.

[@edilbertoaustria19]

I was impressed what you shown how you connected the components , can you please show two light automatic indicator,(Green and Red) and name's of each materials, I am not electronic profession but i want to make my own battery charger with your presentation also don't use board diagram i don't know how to use it, Thanks.

[@vincentrobinette1507]

may I suggest, connecting the 270Ω resistor to the output end of the parallelled 1.5Ω resistor instead of the output of the LM317? That would compensate for the voltage drop in the emitter follower resistors, keeping the output stable from no-load, to full load. (leave the capacitor connected as is, for stability) The LM317 works by making sure the reference voltage between the adj and output remains exactly the same. If voltage drop appears across the 2N5532 and the resistors connected to the emitter, it will automatically compensate. That makes it a true regulated supply. You should not see any change on the volt meter, when connecting a light bulb or motor. Connecting a couple of diodes in series with a low resistance between the output of the large resistors and the BASE of the 2N3055 will limit the current that the transistor can conduct, in case of a short circuit. Make the value low enough, that the current limit built into the LM317 can protect itself, as well as the power transistor.

[@kchandrakant50]

Your logic is absolutely correct but not seen this change in any circuit related to LM 317 & Power transistor in respect of any Power supply circuit I came across.

[@GhulamHussain-xh7qc]

Mr beauti full design and development very good project thanks

[@manojp6641]

Brow...u r presention is superr...awasemm.....keep it up

[@joaoclaudios.freire2132]

Very nice, regards from Brasil !

[@electroniclifehacks2405]

Thanks you

[@hichamtassi1753]

hello, nice video, but i have 2 questions: 1/ why put 2 resistors at the output ? 2/ why this voltage drop with the light and how to reduce the voltage drop ?

[@electronicshelpcare]

Great video as always .Keep the good work sir .You are the best teacher .I have learned a lot from you 😁

[@electroniclifehacks2405]

Thanks for watching

[@abmbarry]

IF THIS IS THE BEST TEACHER YOU HAVE FOUND! YOU HAVE A BIG PROBLEM! .... LEARN FROM PROFESSIONALS, ... FOLLOW AN IDIOT LIKE THIS AND YOU PUT YOURSELF AND OTHERS AT GREAT RISK!

[@jyotikeshkar4642]

good vdo . sir ......but sir iss se hum 12v tractor ki badi battery charge kar sakte hai kya???????. plg tell me

[@narendramankame7967]

Best teching method.... Thank u....

[@alemed1816]

What are the components and cable size for the adjustable voltage transformer and is it for 110v or 220v? I'm new at this but I would like to learn, never too late.

[@detodounpokoOficial]

What do you think if they only use an LM338 that is 5 amps ?, so only the LM317 is replaced and it goes straight out without the need for the 2N3055 ... I appreciate your opinions, regards!

[@ВладимирСотик-ш2ж]

Сильно просаживает.

[@kchandrakant50]

The transformer is 12-0-12 Volt 3Amp. You are using it as 0-24 Volt 1.5 Amp . How it will give you 3 Amp current ? secondly the the meter is powered by out put of the circuit which is wrong. because if your voltage go below 4 volt(As it is a Variable Voltage Supply) the meter will go off because it needs 4 -30 volt Dc to operate. So it should be power on through the DC generated by transformer and the yellow sense wire should be connected to output voltage of the circuit.

[@edgarmendez4398]

I agree with you. I saw the same problem.

[@talfinson9242]

Why he use 2 resistors at the out voltage?

[@rahulborgave4768]

Yellow wire out mai denathaa aur amp meter ke .. black n red series connect negative battery's ko dete too aapko amo bhi dikhyaga aur .. relay dalte to auto cut hota

[@idramirezs]

que buen tutorial gracias, pero por favor podrías contarme cuanto es el voltaje máximo? por tu ayuda mil gracias

[@21thTek]

very practical and objetive, thank u !

[@jelanismit]

Really good explanation thank you. Vary valuable. 👏🏼

[@franciscomatosfrancisco851]

Muy buenas . Muy bien por la presentacion , la musica Ok . y el video way , pero podrias enumerar los materiales utilizados . un saludo . GRACIAS ..

[@kevinhoublon8630]

Bonjour, magnifique vidéo 😄. Je débute et j'ai une question : -Je souhaite utiliser le lm7805 afin d'obtenir en sortir une tension de 5v à partir d'une tension d'entrée déjà stable de 24v. Dois-je obligatoirement utiliser des condensateurs en entrées et en sortie du régulateur car la tension est déjà stable ou puis-je utiliser simplement le lm7805 avec en entrée ma tension de 24v dc ? D'avance merci pour ta précieuse sollicitude 😊. Cordiales salutations.

[@robertneill3057]

Drop the input voltage further otherwise the excess voltage will need to be dissappated as heat. A transformer of about 9v would be ideal for a standalone 7805 regulator. The old Flight 68k boards for the Atari ST computer used a 9v transformer wall wart psu. The voltage can be dropped either by a switched mode pre regulator or by cascading higher voltage 78 series regulators one after another if they can be obtained. Suggest using 7818 and the 7810 which may not be available locally other than on-line retailers.

[@kevinhoublon8630]

@@robertneill3057 Hello, thank you very much. 😁 Since I have a lm7809, I'll follow you advice and use both the lm7809 and lm7805 in cascade. Do you know where I could find a l7818 and 7810? Thank you again for your precious support 😄. Have a nice week 😊. Cordially.

[@robertneill3057]

@@kevinhoublon8630The Uk is lucky to have Cricklewood Electronics or Farnell or RS Electronics.

[@kevinhoublon8630]

@@robertneill3057 Hello, thank you very much for your feedback 😁. I'll take a look 😎. Have a nice week 😄. Cordially :)

[@ratanveerratanveer8166]

Very good

[@electroniclifehacks2405]

Thanks for watching

[@viswanathaniyer2372]

good viedeo

[@electroniclifehacks2405]

Thanks for watching

[@syedakbersadathhyderabad7957]

Pls circuit diagram sir good vedio how to make this work all components mention sir

[@mattomatto3604]

Muy bien, excelente trabajo

[@electroniclifehacks2405]

Thanks for watching

[@gadirajurambaburaju9790]

Excellent

[@jaimesantiago8379]

Excelente. fuente muy buena. Una pregunta maestro cómo conecto la resistencia shunt que vino con mi multimetro, es igual al del video. Gracias desde Veracruz México.👍👍👍👍👍

[@neagoecatalin879]

That 270 ohm resistor would better get connected directly at the output, and this way you have a more stable voltage when you put a load on it.

[@Electronicview]

thank you for your video.

[@irwinsibu]

Use 5v regulated auxillary supply for display(7805)....then display work perfectly....dont connect yellow and red wire together.

[@franciscofortunato1864]

Muy buen trabajo , limpio y practico. Lo voy a copiar, pero con un toroidal. Gracias!

[@aashayjoglekar591]

very informative and neatly explained with graphics too.. i have seen first of this kind.. WILL HELP ALL NOVICE STUDENTS.. FEEP IT UP BRO... YOUR GRAPHICS WITH ACTUAL COMBINATION IS VERY INFORMATIVE.... ALWAYS WE WILL LIKE SUCH VIDEOS.... TAKE CARE... YOU ARE GENIUS SIRJI... JAI BHOLE.....

[@francozaniboni6587]

Great video .... Thanks

[@JoseCarlos-ip5rc]

Deveria ter colocado o esquema eletrico com os valores dos componentes.

[@sallohbody]

great product thanks can you please make same product 220v ac to 450v dc

[@alexandermorales8460]

excelente amigo thankyou my freind

[@gsmphone3309]

good video and helpful.

[@dedskin1]

This is voltage regulator IC , not a transistor, its Called Pass transistor used for incising current, not controlling voltage, you dont need this transistor for voltage regulation . Lm317 will cut it , up to max 40V , that is about 25V Transformer .

[@electroniclifehacks2405]

thank you

[@dedskin1]

@@electroniclifehacks2405 No , thank you , amazing video , bit of problem with English and labels, but video is very good and shows beginners what to do . ITs very good

[@vieshalnaik]

Nice

[@ElBunkerdeCarlitos]

La caída de tensión es horrorosa,más usando un lm317...tendrías que poner las resistencias de 10 watt que están en paralelo a la entrada del lm317 y colector del transistor.

[@febinabraham9403]

Can you get the components details one by onr for making this product..... I can't see clearly in this video

[@essamadel2998]

ارجو المخطط بالقيم ولك جزيل الشكر

[@bipulkarmakar4970]

Out put AHM koto sir???

[@bipulkarmakar4970]

Out Pute Ahmp koto?

[@jonathanabainza6810]

good job more video...

[@ARTROCHAARTTRA]

Amigo aqui uso a rede 110v. Este funciona em 110v Ou as peças são diferente? Grato por compartilhar. Parabéns!!

[@kepharolang1984]

Good work, I've 24-0-24 5A transformer lying around, kindly drop me the components list or should I use the same in the video.??

[@electroniclifehacks2405]

yes

[@englishrupe01]

Yes, but use LM338 instead of LM317 or it will burn out.

[@rafaedo6918]

Sukses and berhasil

[@muhammadtohir6924]

I want to ask if you can use more than 1.5 ohms resistor, or what is the maximum use of ohms on ceramic resistors ... please explain ... thank you ...

[@hameedsk-]

nice tutorial, sir load dene per voltage drop kiu ho raha hai? ager 18v per load de ker stable 18v chahiye to kya karna hoga is project per?

[@JessicaRyan7of9]

Where did you get the transformer form.

[@electroniclifehacks2405]

Hello, i have bought from Electronic Shop near my home. thanks for watching

[@JessicaRyan7of9]

@@Alexander-jr8nw thank for getting back to me. Just a curious question what did you get yours out off. When you say old electronics.

[@MuhammadAbdullah-yt2xv]

Can give all components in written form which use in this video

[@DJTONIDIGITAL]

Boa idéia vou fazer aqui também.

[@narendramankame7967]

Can u include amp.control pot in ur circuit ?

[@rolandocastroparagesjr.9493]

Good idea you explained how to connect one by one

[@ricardotito4640]

HOLA, MUY BUENO. GRACIAS desde Argentina

[@vijaybendre250]

Excellent project

[@ipoenkcs7274]

Ini sangat bagus saya hanya bisa meniru... Saya mempunyai travo/Transformers 4A untuk komponen yang lain ada yang harus dirubah.. Tolong jawab

[@SpikesMavic]

Have you got a drawing for this and a parts list ! . cheers Stan

[@youberthalvarez6590]

amigo y para que sirve esa resistencia de salida amigo

[@juliocesarnatalrn161]

👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏

[@SACD0629]

Can it use to control 5A

[@AJITSINGH-rc9cy]

Give circuit diagram with every project you give

[@edwardocamarinha5438]

this was a wonderful explanation video, thank you very much, 1 more subscriber and a like

[@martinmartinmartin2996]

Short circuit protection required : eventually the USER will accidentallly create a short . . . then what ?

[@skillradius9867]

Use a mosfet latch circuit

[@miftosaurus]

... the two 10W resistors... cheapest form of a short circuit protection! :) it just limit the maximum current under to the CE maximum current... not the most power-wise one, but parts-wise one, is ok! :D

[@englishrupe01]

An excellent video, and very useful! Thank you, sir!

[@rakeshranjan4080]

10w 1.5ohm J ceramic resistor nahi mil raha hai online offline kahi bhi nahi mil raha iske jagah pe koi or option hai kya use karne ke liye bataenge please

[@InnovationKH]

Great word

[@Ekozip1234]

Can I use it for more than 3 amperes, for example 10 amperes?

[@germangonzaga1851]

Bro, Thanks for the informative video like this, i have a question, what if i change the transistor instead of 2n3055 to tip3055 what will happen? is it working?.. thanks bro... more power to you, be safe always....

[@deepdpk6246]

Isme amp. Adj. Krne ke liye konsa pote kaha lgana hoga manual setting ke liye plz reply fast thnk u

[@alonsomiguelredondosantos3088]

Good video, I chose it among all to do my voltage regulator. Greetings from Colombia

[@oofoof2757]

Is there a way to connect a Potentiometer for amp adjustments? and add 1 more power transistor as well? thank you btw you articulate the steps wonderfully thank u:)