DIY – Lab Bench Power Supply

In this episode I will show you in great detail, how to create your own bench power supply from a PC power supply.

This is the diagram for the voltmeter/ammeter and rotary switch:
https://i.imgur.com/tesGVjy.jpg

These are the components I’m using:

dc panel voltmeter/ammeter (0-100V & 0-10A)
rotary switch with 12 positions + switch knob
double rocker switch (or 2 simple rocker switches)
3 red binding posts
3 black binding posts
USB port
10W 43 Ohm resistor
one LED
470 ohm resistor (for the LED)
shrinking tubes (2 – 10mm)

—————-Music—————–

The music was provided by NCS: Cartoon – On & On (feat. Daniel Levi)
https://www.youtube.com/watch?v=K4DyBUG242c
Facebook https://www.facebook.com/cartoondband
Facebook http://facebook.com/daniellevimusic

Track: Inukshuk – The Long Road Home [NCS Release]
Music provided by NoCopyrightSounds.
Listen: https://youtu.be/athFRSHdrag
Free Download / Stream: http://ncs.io/TLRHYO

Track: Raven & Kreyn – So Happy [NCS Official Video] Music provided by NoCopyrightSounds. Watch: https://youtu.be/cmVdgWL5548 Free Download / Stream: http://ncs.io/SoHappyYO

Ship Wrek – Pain ft. Mia Vaile
The music was provided by NCS
Video link: https://www.youtube.com/watch?v=UDEpRK8WL_I
http://facebook.com/NoCopyrightSounds

Comments

Dimo Kolev says:

Can you use 3v 5v and 12 v at the same time

محمود عبد الناصر says:

Even though the pieces are not available, I loved him very much
Greetings from Egypt

Marius Mihut says:

are u a roman ?P:
mama mea 🙂

Alexzai89 says:

Since the Ground are shared among each other, why need 3 Black binding post instead of 1?? any reason for it?

KEEDLife says:

are you from romania?

Pavan Kumar says:

I made it.Thanks

KillSwitch says:

what happens if you connect the sense wire with the regular orange wire

DKF22 says:

awesome vid and tutorial. the only thing wrong here is the shitty PSU you used…delux…sounds like a cat brand.

Steven Arango says:

awesome video ty

Ning Daomi says:

Very nice video!body.What is the maximum current of the band switch? What about carry a 120 watt vacuum cleaner?My power supply out put 12V 30A.

Saugat Paudel says:

my PSU gives less than 1amp when I use 12V(yellow wire) which is supposed to give 10Amps. Can you please solve this problem.

Ronald Stevenson says:

Awesome job!

Khamsao Namsavanh says:

I need help! my cat refused to go! what should I do?!?

Barry Kery says:

Nice job. Very creative.

PRANAV WORKS says:

Please make a variable one please please please

Targaryen House says:

I’ve been rewiring a few old power supplies i have to use as inverters for car audio and house power. admittedly typing this before watching the vid but i do think this will make things much cleaner

Mike Studmuffin says:

Isn’t it you shouldn’t combine the two 12V rails since they may not be exactly 12volts and a current will be induced from one rail to the other?

Frenchie says:

Too bad it doesn’t have an adjustable voltage control.

Cheslin Van Niekerk says:

High isit possible to adjust the current amps on each voltage setting aswel? And not have a fixed current for each voltage. Also what is the maximum current supported on each voltage if possible with this DIY

Camino says:

Great tutorial, hope cat it’s still ok.thanks

Cory Knipe says:

Very nice video. Is it possible to use multiple power supplies together to increase the voltage and amperage? I am looking for adjustable 32 volts and adjustable 50 amps for electroplating. Your unit is very tidy and I would like to combine a couple if possible to achieve my targets. Thanks in advance and keep up the great videos

TUTORIALERO says:

How many time have you need for the edition of your cat crossing de plane?

blendraphi says:

Clean work!

Nguyên Trần says:

Good job men. Very useful video!

Angelo Miranda says:

Is there a way to increase the 12v output to lets say 13,8v so that it can be used as a power supply for ham radios?

Junior Ellis says:

my power supply dropping voltage to 11.5 under load,would a 10W 47ohm solve this issue 🙂

pratik bhagat says:

it was really awesome sir

Cobb Butterscorn says:

This is a really cool build and I enjoyed the video, but honestly it seems like a lot of work when I could just connect whatever I’m powering directly to the wires and not have to rip apart a functional PSU.

Cole DeSantis says:

I appreciate the level of detail you go into.

osama lios says:

thats not DIY .. thats just a rich kid with unlimited supplies haaha if i had that iam probably building a whole mecha by now not simple stuff
… keep it up we want better harder projects <3

zband says:

Man, I gave you a thumbs up in the first 5 seconds! That is one sweet PSU mod.

millsticks says:

I don’t like the music (This is the problem in every tutorial 🙂 ), but it’s a very interesting video. I have to do one for me. There are many ideas (the USB port for exple). thanx.

klannstyle says:

Well nice to see good quality content from one of my “people” 😉

Cheers

Faiq Ramli says:

hi sorin

NADET CENTER น้าเด็จ เซ็นเตอร์ says:

# ครับ สวัสดีครับผม น้าเด็จเซ็นเตอร์มาแลกเปลี่ยนให้กำลังใจคนทำช่องยุทูปนะครับ กริ๊งๆๆครับ

joszPuch says:

fantastic

IZ0JUB says:

Low cost way to build a bench PSU great stuff. Thanks for uploading. Having watched several of these conversion videos this one looks very professional in its appearance,

Lucas K Chung says:

Great video. One question, why are there two rocker power switches?

Luis Pedro Goncalves says:

Just subscrived
Thanks for your video

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