DIY excellent adjustable power supply 0-35V, 0-3A

[@KasyanTV]

The 2nd part kzbin.info/www/bejne/laOWkHqgo9x8aKM&t

[@AhmedAli-sn3ty]

Kasyan TV where is the 2nd trimmer you mentioned in your pcb.? and resistors are of 1/2 w??

[@monadicyt521]

Ok Please tell me input 40 volt but how much ampere current needed ??

[@ElektorTV]

Thank you for having us Kasyan ;-)

[@NNNILabs]

You know what I love about designs like this? The fact that they are so damn easy to modify to your requirements!

[@UpcycleElectronics]

NNNI Lol, sub'd, prove it ;) At first glance, I was wondering if I could rig a FET to replace that power NPN and use the Vgs resistance as a replacement for the power resistor but I will need to play with that one in a simulator first ;) I know the 2.4v zener should be replaced with a TL431 as the first step to building this easier with junk components ;) -Jake

[@Inquire98]

"Thank You", thank you very much. I like building ordinals, then re-engineering with different components, to learn something NEW

[@alexandres8846]

Great channel. "no ic's circuit" the design of discrete components circuit great job. The wonderfull of transistors works demostration: power pass transistor. darlington and driver transistor. Diferential pair amplifier.current limiter protection and more. is very nice job. im a electric and electronic technician in my country south america chile. (sorry my english please)

[@Harindra19821210]

you must be an avid enthusiast towards electronics as I do. Nice content btw. thanks for creating such a content mate!

[@davypeleman3672]

yes i would like to see more testing, please. looks like a nice and simple design. thanks for sharing this

[@BruhAllrounda]

Thank you very much for providing such good content

[@mrimbusyt]

Awesome video i Like it 👌♥️👍👌😀👌 Great job Kasyan👍

[@rockyheaton2663]

All your videos very educational thank you

[@anindyamitra5091]

I really want to see the continuation of this topic and more points for improvements

[@PhG1961]

Great video about power supplies. I love your work and btw, I build several power supplies from Elektor. I have over 30 years of Elektor magazines... and some individual editions that go back to the late 1960's ! I'm seriously addicted....

[@ElektorTV]

Thank you Philip, keep up the good work ;-)

[@PhG1961]

There is no other way... it's in my genes ;-)

[@pirateman1966]

Dear Kasyan, Please consider spending more time explaining each circuit as you would in a class room environment. With current paths and voltage states. Many of your viewers are experienced in electronics (like myself), and will not learn anything new, but far more numbers are learning the ins and outs of electronics and will benefit greatly from such analysis.

[@VENUGPL1]

Good old circuits... useful.

[@ernandofranco8448]

Very Nice project...Tanks!!!

[@colofagu86]

Can you tell me the number of the elektor magazine that has this circuit?

[@rockyheaton2663]

Yes I like to see the rest of the project

[@mahmoudtayel229]

Great .... Thank you for all if i need one that has 5A /12v output what should i do? replace power transistor & transformer only or what?

[@desimedia6521]

Hi Kasyan. It is a very good project. I tried to make it but there is one problem when I turn down the ampares to zero the half voltages still shows like I tried with 18v transformer. When I turn down the 100k pot to zero and turn up the full the 10k pot voltmeter shows 8.5 voltages and the voltages also moves with ampare pot. Please guide me what can get wrong?

[@captiveimage]

Great video. Thanks.

[@VENUGPL1]

Can we modify the buck-boost module available in the market for more current?

[@albertsekyr8759]

Will this hold up without burning the output at 1v 3A at output?

[@BADALICE]

Very nice power supply for such a simple circuit. I imagine it would be possible to replace the potenteters with resistors to set a voltage/ amperage value, and be used as a permanent component in x, y, z device?

[@two_number_nines]

please do switch mode adjustable power supplies

[@RamKishan-kk9yn]

Will it work with switching power supply

[@anindyamitra5091]

Kasyan, can you please tell me why there is a 2.4v zener used? Can it be replaced by 4 silicon diode in series in forward bias? I need your answer urgently. Your cooperation is highly appreciated.

[@harisct4468]

Your videos are good, but difficult to understand..

[@kryptocat4240]

How can i upgrade thise circuit My need is 35V and 15 Amp

[@anthonyvolkman2338]

Very nice tutorial and working vid! You have a great channel.

[@electronic7979]

Nice video

[@jparky1972]

Thank you. ☺

[@colsanjaybajpai5747]

Great video quite informative

[@neail5466]

Excellent plz add a lcd 16x2 to minimize the multimeter use..

[@eduardopereiradasilva8656]

boa tarde gostei muito do projeto gostaria de saber como, e se poço mandar fabricar a placa no site indicado pela mesma obrigado.

[@MrMaxyMahdia]

Can i put any transformer in the input even that the transfomer current is less than 3 A ??

[@anindyamitra5091]

Hi, I've built this circuit on a perf board recently and it's working fine Now can you tell me how to add a C.C. and C.V. indicator led (in the diagram).

[@tahmid61]

Could you please give me the parts list? The circuit diagram is not clear enough. Thanks

[@jedfrancesararao5141]

can i ask for the parts list? the values on the diagram is a little hard to read. thank you

[@stefanb.933]

Has short-circuit protection ? Did anyone make the feeder? Where a current limiting monitoring LED is installed ?

[@AS-zs7jw]

please give the magzine or document link which contains its explaination, PLz , anyone if have PLz

[@AS-zs7jw]

Please give link of this circuit's detailed theoretical explanation, or if you know the theory of each transistor in detail then make a video of its complete theoretical explanation.

[@Johann52005]

Thanks

[@ihabhamad8290]

Can you share your project viedos and pcb gerber file to useing it on jlcpcb website directly and thanks alot

[@mahmoudtayel229]

And we need add some modification on the circuit like overcurrent protection & we can control the over current we need

[@Deep_Thoughts99]

Can we gain 20a by adding power transistor in parallel?

[@kartikrajurkar3708]

Please give us information about capacitive dropper (transformer less power supply) at higher current sourcing.

[@leozendo3500]

Free shipping for 1st buy? Not working for me.

[@MedSou]

thank you so much 👍👍👍

[@DubiousEngineering]

Cool! 😎

[@MCsCreations]

Really nice! 😊

[@beleteshebabaw6785]

and how can we limit the upper limit of the current using p3?

[@hayel2015]

Good luck

[@jimix321]

Is it possible to use a dimmer, a diode rectifier and some capacitors to make a high power ac-dc power supply?

[@iblesbosuok]

Zetsubou_232_ , ofcourse it is possible. Applying typical dimmer on primary side of the power transformer, apply additional snubber network on the triac and apply small resistive load in parallel with the primary will work fine. Unfortunately it not provide regulated output voltage.

[@iblesbosuok]

If you substitute D3 with TL431, the output voltage will be much more stable.

[@DAILYTECHNEED]

Love this kind of regulator

[@teslakovalaborator]

I had an idea about SMPS powering linear regulator in way of adjusting voltage of SMPS to 3 volts higher than output of linear one. It will probably have good stability and no need for massive radiator.

[@miftosaurus]

this can be done easily. as a plus, filtering will be a bit good than a "normal" smps power supply.

[@Σταμάτης-σ3μ]

Very good

[@home_Grown_studio]

I really like your videos. What confuses me is you have a female voice but man hands.

[@SantoshBhagwat1976]

CAN WE INCREASE IT UP TO 20A ?

[@rcdarko7520]

what resistor did he use on r6 ?

[@ftt2757]

Link for banana plug? Used with multimeter

[@karlmartell9279]

What an ancient construction! You should probably try Tesla's old tubes too.

[@amirabdurraman6286]

Very good circuit, but I would like to have indication of current limit.

[@maze42d]

Amir Abdurraman You will have to add some microchip, display and other things... This is just very simple and cheap supply.

[@anonymous9445]

How about polarity issues?

[@broudjzed7892]

hello l do the same with the schematic but the variable resistor 10k dont give 0 volt only from 9-35v

[@jeanmorin5891]

I think the value of P4 is too low (or R5 too high)

[@dipakchakraborty2495]

Thank you Sir PCB Download Link

[@irfanjalal2010]

Please guide me how I take it with complete circuit board and diagram in Pakistan

[@AhmedAli-sn3ty]

Irfan Jalal go to link description and download file

[@agent_royan]

as always wow

[@rajkiran3989]

could any give a proper reference or make a video on lm723 ic.

[@iblesbosuok]

Raj Kiran , LM723 too high cost. TL431 would be stable enough with much cheaper price.

[@rajkiran3989]

ibles bosuok Well ok but I like know how to configure 723's different features. Its data sheet does not contain all the information.

[@carlosgomes5247]

friend could you tell me the magazine number of this article

[@sextoempirico2243]

Elektor Electronics April, 1999 (no. 276, vol. 25), p. 36-38.

[@browaruspierogus2182]

answer is buck regulator at least on the input

[@fnzip]

Nice 🙂

[@kevinscollan8293]

Thank you Kasyan I love this circuit and will be studying it myself as I am just learning about power supplys linear and switching, it's a strange fascination I know 😆 Kesco73

[@mr.satishfy]

Voltage drop mode

[@beatrizllanosramos8810]

🤔🤔🤔.... In orcad or pspice ...not found!

[@ihabhamad8290]

hi, friends, can anyone modify this circuit to handle 5amp with 2 output transistor

[@KausikKumaar]

why not xl4015

[@nyuuparadise1183]

Ty please update us

[@vidanatural_oficial]

LM317 with a PNP as power transistor is much better.. Do not lose your time with this one.

[@67beppedoc]

but not variable current limiter :)

[@MOSKAU15]

MAA723 or uA723 is nice circuit as well. LM317 useless for lab power supply without aditional current limiting circuit

[@therealb888]

I need a 0-40V & a 0-15A with 0.01V & 0.01A accuracy.

[@mehmetemreucak8973]

R

[@ShahZahid]

Why your PCBs look like 1960's pcb's

[@embdessol337]

have you ever made a pcb at home?

[@JohnRaschedian]

Thank you!

[@tahmid61]

Thanks