[Milsurplus] 24V power supply project question

[jmfranke]

Good luck, it is a dangerous task.  If I had to do it, and would rather not, 
I think I would consider a blocking diode on the output from each supply to 
prevent one from dumping into the other.  Additional series resistance may 
or may not prevent current hogging.

John  WA4WDL

----- Original Message ----- 
From: <jcoward5452 at aol.com>
To: <milsurplus at mailman.qth.net>; <armyradios at yahoogroups.com>
Sent: Tuesday, October 17, 2006 3:16 PM
Subject: [Milsurplus] 24V power supply project question


> Hi All,
>  I'm planning to build a 24V power supply into a gutted ATR case ( I did 
> not do the gutting and looks like it was surplus material off the assembly 
> line) with mount so that it looks "mil-ish" and "aircrafty" when done 
> constructing.I have three 24V open frame supplies that will fit in the 
> case.Two are PowerMate rated at 3.8 A and one is PowerOne rated at 
> 3.6A.The two types look very similar and are the same size.I plan to 
> parrallel them and maybe add a fan as the case is well louvered allowing 
> plenty of airflow.
>  My question is: Will I have a problem with "current hogging" if I just 
> wire the supplies directly in parrallel or should I put a small value 
> resistor in series with each supply,say .1 ohm to help equalize the 
> current distribution  to the three supplies? Or will the wire resistance 
> suffice?
> Thanks for your advise in advance,
>                                                  Jay
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