[Amps] "Stacking" power supplies?? how?

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Mon, 14 Dec 2009 09:51:35 -0600, chas <chasm at texas.net> wrote:

>How do I connect three 30A power supplies together so as to obtain 90A ?

REPLY:

The usual way is to insert a small value resistor in the + lead if each and then
parallel them. The value of the resistor should create a drop of about .5 V or
so under full load. Be sure the output V of each supply is adjusted to match the
others as close as possible.

73, Bill W6WRT