Diy Lab Power Supply

Intro: Diy Lab Power Supply

this is lab bench power supply

i use atx power supply as main componet

STEP 1: Component You Need

• atx power supply(i use 450w)
• banana connectors
• switch
• leds
• wires(use thickness as per current requirement)
• wood
• and some basic componet

STEP 2: Make Wood Box

make wood box and connect screws cable clamp

STEP 3: Connect Atx Power Supply

put atx power supply in wood box and connect wire to screws cable clamp

the wire connect according to pin map

STEP 4: Diagram of Power Supply

connect all think together as per diagram

and connect all think together on front panel

STEP 5: Make Variable Output

• now make variable output for variable output i use dc-dc converter with variable voltage and current limit .
• it can output 1.3v to 27v and 3A max
• connect all componet as per diagram

dc- dc converterhttps://www.aliexpress.com/item/DC-DC-Step-Up-Down...

STEP 6: Done

Comments

[saadland]

Hi, I've ordered the same Voltmètre Ampèremètre but I dont understand how to connected it cause there is 2 groups of wire, 2 red and 2 black. and 1 yellow, not blue...

which group should be conncted to the module DC converter?? the group with the yellow or without??

when I check the pic by the manucfacturer it is very different and I m lost......

and you please help me to connect it

Thx

[EE MAKER LAB]

it may be change in color code as per manufacture change so go ahead with the manufacturer's design and try that

[saadland]

I finally figured out how to connect the Voltmeter

I could not connect 2 pots like you did, and I went with one pot, it is anough precise for me...

[saadland]

why 4 potentiometers instate of 2 ??

[EE MAKER LAB]

i use 2 pot for voltage and 2 pot for current that give me small change in voltage and current value

[saadland]

I am trying to connect 2 potentio like you did, one of 1k and another of 10k. it is not workin at all, i followed the picture as you did, but no work, can you help me please???

[EE MAKER LAB]

i use 2 pot for voltage and 2 pot for current that give me small change in voltage and current value

[saadland]

you forgot to add a load resistor for stabilization...

[EE MAKER LAB]

no without load resistor it gives me proper out put but now i connect load resistor for safety

[EE MAKER LAB]

no without load resistor it gives me proper out put but now i connect load resistor for safety

[gm280]

Oh yea, those old ATX power supplies had some pretty stout current capabilities. And they would make a really nice shop power supply. Thumbs Up!

[Tech Hunt]

good project thank u for suggestions