Charlie wrote:

Since I have these power supplies laying around, I can't resist asking.

A friend is going to buy and/or build a robotic CNC setup for his plama
torch.
A system is $5000 complete or a mainboard and software can be purchased for
$1500
or so with him supplying the motors, power supply, etc.

He says he needs 35 volt power supply with 35 amps.

So if I wire together 12 power supplys (12v, 9a), voila, 36 volts at 36
amps.

Hehe, it can't be that easy can it?

No, it can't. The supplies are not isolated from the case, they are
not designed to be paralleled, the regulation tracks the +5 volt output
which usually requires a minimum load to operate. The 12 volt outputs
are low current, as well.

--
We now return you to our normally scheduled programming.

Michael A. Terrell
Central Florida

Hmmm Darn


"Michael A. Terrell" wrote in message
...
Charlie wrote:

Since I have these power supplies laying around, I can't resist asking.


A friend is going to buy and/or build a robotic CNC setup for his plama
torch.
A system is $5000 complete or a mainboard and software can be purchased
for
$1500
or so with him supplying the motors, power supply, etc.

He says he needs 35 volt power supply with 35 amps.

So if I wire together 12 power supplys (12v, 9a), voila, 36 volts at 36
amps.

Hehe, it can't be that easy can it?

No, it can't. The supplies are not isolated from the case, they are
not designed to be paralleled, the regulation tracks the +5 volt output
which usually requires a minimum load to operate. The 12 volt outputs
are low current, as well.

--
We now return you to our normally scheduled programming.

Michael A. Terrell
Central Florida