Build log of my 300W bench PSU

[iamdarkyoshi]

Not sure what to call it yet, but this is my 60V 5A bench PSU project:

 

It is based off of one of these:

http://www.ebay.com/itm/60V-5A-300W-constant-voltage-constant-current-DC-DC-regulated-power-supply-CC-CV-/190898609824?hash=item2c72719ea0:g:VXQAAMXQfFJRP4u~

 

I still need to find some switchmode PSUs to throw inside the case. Underneath the buck regulator is an intake fan blowing into its mosfet, schottky diode, and choke. I have mounted them upside down on the PCB, which is why you do not see them here.

 

One think I like about this thing is that it actually has an option to use voltage sense wires when installed into something, so it regulates voltage based on the voltage at the measurement wires, rather than the output of the PCB.

 

It has headers for the keypad, LEDs, rotary encoder, etc. but I do not have plugs for said headers, so I just soldered wires directly to the PCB.

 

I will add more details and images as I make progress.

[iamdarkyoshi]

@Tmt97 wants to see the pretty fireworks once I put the cheap chinese PSUs into it

[Tmt97]

Just now, iamdarkyoshi said:

@Tmt97 wants to see the pretty fireworks once I put the cheap chinese PSUs into it

I'm just sitting here in a lawn chair facing towards nevada waiting for the

[iamdarkyoshi]

3 minutes ago, Tmt97 said:

I'm just sitting here in a lawn chair facing towards nevada waiting for the

boom.gif

 

 

[IMPERIUS]

inb4 you fry all your pc stuff lol

 

good luck haha

[iamdarkyoshi]

27 minutes ago, IMPERIUS said:

inb4 you fry all your pc stuff lol

 

good luck haha

This is not really for powering PC parts, mainly just as a general use bench supply. It will hopefully have the proper protection from derpiness 

[DragonTamer1]

Following.

 

Power supplies are one of my favorite types of electronics projects to work on.

[You_are_a_cunt]

I challenge you to a build-off!

 

Also, why 60V 5A? I can't really see all that many applications where you'd need as much as 60V  or 5A. You could make your life easier and just go up to 37V on ~1.5A.

 

If you're building it from scratch, the LM317 is your friend 

[Nup]

I know too little about this to really comment, but awesome project mang. Sub'd!

[iamdarkyoshi]

Small update: put in a 32V 1A PSU from an HP printer inside the case and added a power switch to the front. I need to order some PSUs. Here is is powering a small amplifier: