How To Make A DIY Variable Power Supply With Adjustable Voltage(0-30V) And Current(0-10A)

A variable bench power supply is the most important tool for any DIY maker cause while testing circuit it needs different values of voltage and current. So in this tutorial, I'm going to show you how you can build your own DIY variable power supply with adjustable voltage (0-30V) and current (0-10A).

In this tutorial, I'm using LTC3780 DC buck and boost converter which is a really amazing converter and it can provide 130W of power depends on your input power source. I'm using 12V 3A dc input power source which can produce (0-30V) and (0-3A) output power.
This is pretty enough for testing circuits. I'm also using a 7805 regulator for 5V constant voltage.

Click on this link for more details and circuit diagram:

Here's the parts list:
1) LTC 3780 DC Buck And Boost Converter.
2) 12V DC Fan.
3) 12V 3A DC Input Power Source.
4) 500k & 200k Potentiometer.
5) Digital Voltmeter Ammeter Display.
6) 7805 Voltage Regulator IC
7) In4001 or In4007 Diode.
8) 100uF & 10uF Electrolytic Capacitor.
9) 4ps Banana Socket.
10) 2ps knob For Potentiometer.
11) DC Switch.
12) DC Jack Socket 2.1mm.
13) Heat Sink.
14) 4mm Acrylic sheet.
15) Some Wooden Blocks.
16) Wires
17) Zip ties

Thanks for watching this video. Please Like it, Share it and make sure you don't forget to subscribe my channel for more upcoming awesome projects.

If you have any problem to find parts and circuit related problem then let me know in this comment section below.
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[Skidd]

Ugh. More narration, less ear harming music. EXPLAIN THE PARTS. What people want to see is not just how you put a variable buck converter together, its what the parts do and how they interact with each other to create the desired results! Not "ear rape" loud music!!!

[lynxstudios]

ive done all your projects and they have all worked out perfectly there just AWESOME!

[SpeccyMan]

Narrative is an essential when doing a "how to" video!

[megamindmemes]

I have come from future to say that you have got 159k+ subs

[garyharyett]

The video was interesting but really, the loud and irritating background music, seriously?

[ulisesaguilar]

grate Job , can you hand out the schametic of the 7805 regalator

[romulopartoza]

Sir... Why do you not give first a clear emphasis on circuit diagram before assembling the unit?The unit can be made by own description of the builder!!... From the Philippines

[laychanrithy]

Hi 500k potentiometer is for adjusting vol or amp ? Thank

[fernandoesposito]

Bravo molto bravo ogni circuito al suo posto e ce molto ordine nel contenitore un lavoro molto pulito bravo.

[ceximo]

Did you buy the casing or make it? If you buy, where do you buy it? What is its name?

[jatinmali]

Which circuit is this & why it is used?
At 11:41

[shiveshgupta]

pls give a circuit diagram for fast motion it is hard to understand...

[Thebrandon]

Isn't your title a bit misleading? You built an enclosure (and don't get me wrong. It looks great), not a bench power supply. The step-up/down converter is the vast majority of your PSU

[divikumar]

Its really a good video. Here's my question, for example if an LED was set to 12v and it draws a current of 2A, by the potentiometer whether we can adjust the current flow rate within the 2A or else we can adjust the current rate greater than 2A?

[subhajitdutta]

Can i use 30v 15A to power this project???

[suspaul]

Hi bro... One question... Why is that 5V ckt there?? I mean u can adjust 5v in the pot right??

[cizocustoms]

you actually explaned nothing mate -.-

[robertkraciuk]

great project but abysmal choice of music and lack of narration :/

[ga]

awesome case design and well designed fittings for all the parts ! :)

[tracylopez]

I'm interested, how and where can I get the parts? I'll be waiting for your answers, great video!