[geeks] power supply question...

James james at jdfogg.com
Sat Feb 22 15:33:12 CST 2003


At 11:33 AM 2/22/2003 -0800, you wrote:
>I was wondering, if I have a box with, say, a redundant power supply
>"complex" of two 450 watt power supplies, and the system only draws,
>say, 300 watts in operation - how much total power is drawn by the
>system:

The current at the line input to the power supply is relative to the output 
of the power supply. There is some "loss" in the PS, but as the output 
current climbs so does the input current. Also, if you graph the input 
current it usually wont be a perfectly flat line.


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