P1 : 1400VA Constant Voltage Output Supply From Recycled Server PS's & UPS

P1 : 1700VA constant voltage output supply From recycled Server PS's and a UPS

more info here:

i found all this stuff in the trash...

hi all, im currently building a constant output Voltage source for my Extruder and other applications.

this is build from old recycled Power supply's and a'n s UPS !
this video is more for showing you how to use your resources to make isolators... but its still good!

should work well!

~Russ

[benjaminfisher]

Thank you, Russ. Your modd skills are quite impressive. It's amazing how the things we choose to change seem to be waiting for us to do so. Almost like our future selves are designing and placing the components to mark our way. We've never talked but I have admired your work for a long time over the YouTubes. Keep up the good work! I hope we can co-laborate in the future. I believe your work has only just begun. : )

[elitejohnlp]

I pull the nylon (?) covers off terminals all the time so I can crimp them properly, and heatshrink them. Great idea reusing the insulating skirts!

[azyfloof]

It's amazing the stuff people throw away :O Recycle Reuse Reduce! The important "Three R's"

[HhydrogenPower]

Buttercup, I already commented that you need to drive a copper ground rod on your side of the meter. Also you can call the power company and they will record the activity and possibly change your pole capacity to your own capacitor.

[RWGresearch]

@ Spoif. this was to show others where to get isolators if there was none available... ( use your resources)  :) ~Russ

[beforebefore]

Russ... where do you find such great throw-outs??

WARNING the heat shrink on the screws is CRITICAL. PC Board Ground holes are plated-through, and the threads of the metal screws could hit the inner-walls of the holes, and short out.

Why would you isolate the AC side Ground pads? That eliminates the grounds for the AC-side EMI bypass caps and surge suppressors.

One alternate solution that would work would be using two nylon shoulder-washers at each of the holes... one on top, one on bottom, with the small diameter part inserted into the board mounting holes. (Personally, I would just do the DC side holes)

OR... just use shoulder washers only on the bottom side, and use Nylon screws.

For those that aren't familiar with the Nylon "shoulder washers", they are used as mounting screw insulators on TO-3 and TO-220 transistors packages. If the PC board holes are too small to allow the shoulder washers to fit into the holes, just drill the holes out a tiny bit. Yes, it will remove the through-hole plating, but it's common practice to never "count on" the mounting hole plating for electrical purposes... we are always taught to add extra through-holes near the mounting holes to actually do the electrical work, if needed.

FYI... BTW... FWIW...  the type of UPS that constantly runs (for power conditioning) is called an "Online UPS". They are usually built VERY heavy-duty, since they run 24/7, whereas a UPS hardly ever runs more than 10-30 minutes at a time. One advantage is the ZERO switch-over time in the event of a power failure.

I like the "dual purpose" idea... that makes for a hefty 12V power supply when needed! :-)

[marcelookunz-lufk]

Me salvaste. Desconecté mí fuente completa y después no sabía cómo volverla a conectar para que me de 12, 8 v 32 Ah. Saludos desde Argentina. LU1FK

[marksaler]

What about nylon screws?

Is that a 3 D printer in the background?

[RWGresearch]

@ Mark Saler, yeah nylon would be fine... if i had some :)

and yes it is.

~Russ

[consciousenergies]

You are quite the teacher my friend, thank you :)

[briant]

Looks good. You could keep the batteries in the circuit and you've basically turned the offline ups into an online ups :)

[kuhrd]

Looks good but you are going to need 4 of those PSUs if you want to get to the maximum output of your UPS since those PSUs look to be 400Watt units and only able to deliver 384 watts max on the 12v rail 2 of them in series will provide you with 24V 32A with a total maximum power output of 768W.  You won't want to run them much over 90% capacity and most likely your UPS is only 80-90% efficient at converting the 24V dc back into AC so figure that you will really only be able to draw about 550-600 watts off the output even though you will be providing ~700 watts in from the wall.

[DustanWebb]

I like how you keep saying "Constant Variable"  kinda opposites  LOL

[MICSOMASS]

You keeping a monolith in your workshop? :P

[kiskiller]

the avr of the ups should already do that this model has it you can set it up by connecting it to the computer trought the serial port.

[kenlee]

Hey, while you are cogitatin' on steady output things.... Variable volume input from the world sucks! My dear, departed friend, Robert Russie, always pined for a device he had in the 60's, called a "Compandor" which never varied in volume regardless of input. It was part of his stereo rack, a separate unit.
To go it one better, having a limit on high and low with variation in-between would be optimal, and *Very Sellable* both as a physical object and as an app. Moreso as app, probably, at this stage of tech. But yeah, a small box/code that goes inline with adjustable limiters and boosters... no more waking babies with ads or whatever, no more missing stuff due to "suddenly quiet" ... Make it and drop it in your employers lap/laptop. Guaranteed income stream.
All my best to you and yours,
Ken.
 

[Eniklis]

I use an old ups to light my shed with a car battery on it with a solar panel to charge the battery I get 110 and lights :)

[monkeymanstones]

Put a spot of butyl rubber on the tip of your screwdrivers = No more lost nor walking away screws! 19 minutes, 20 second mark.

[Spoif]

Seems like a lot of messing about.  I would have replaced the stand-offs with ones made from nylon.   Not that it matters.