garygid said:
Let's get some schematics for these units, to better see
what we are working with.
When you buy power units, it would be helpful to others
if you would post the link to what you actually bought.
15" x 5" x 2.5" in two stacks of 5 -> 15 x 10 x 12.5 approx.
How much does each one weigh?
I do not know where to look for schematics for these,
it will be very time consuming reverse engineering them,
and some technology might be proprietary. I can not
find the pinout for the output, and a board probably must be
de-soldered to trace the lines from it.
Sorry about not posting the source:
Ebay Item #130781131307
I do not have a scale with me, but the box with 8 says
68 lbs. They put the other 4 in another box which says
31 lbs.
The case screws all have threadlock on them. I stripped
the first one and had to drill it out before I realized this.
Two fans and a lot of heat sinks, one heat sink is attached
to the case on one side. The stack could be
arranged so this side is always on the outside.
Maybe these things will not like stacking in series
because unlike the ATX power supplies which "see"
the voltage difference between the case ground and power
out, these have an isolated ground. It is hard to say
what they will "see". The reference will have to be the
(now incoming) DC negative voltage for them to work.
These are very clean and neat and look professionally
soldered and assembled. Unlike the ATX power supplies.
Everything that could possibly move is glued, wire tied,
soldered or screwed in place. So it is rugged enough for
portable use for a long time. More rugged than any of
my laptops, for example. I would not drop either one
on purpose, but I think this would withstand a few drops.
Jim