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

[W2XJ]

I would put a diode rated for the current in series with each supply on one
side and paralleled on the other. Just be sure the supplies are all set for
the same voltage.


> From: <texasrf at aol.com>
> Date: Tue, 15 Dec 2009 12:10:19 EST
> To: <dezrat1242 at yahoo.com>, <amps at contesting.com>
> Subject: Re: [Amps] "Stacking" power supplies??   how?
> 
> You might want to look up the connecting wire resistance per foot. Some
> length will provide the small voltage drop mentioned by Bill.
>  
> 73,
> Gerald K5GW
>  
>  
>  
> In a message dated 12/15/2009 10:40:09 A.M. Central Standard Time,
> dezrat1242 at yahoo.com writes:
> 
> 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
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