Re: How does a power supply work?
- From: davy <davy.49neg4@xxxxxxxxxxxxxxxx>
- Date: Sun, 18 Apr 2010 17:52:10 -0500
Concentrate on the primary side..... tha VA rating, that is the voltage
it runs from times the current that's drawn at full load.
For example a supply running 220V drawing 2.2 Amperes this will be
capable of providing 500Watts of power - anymore than this the power
unit will be over loaded, thus anything could happen under this
The power factor also should be considered and will play a small part
as well as conversion loss... don't forget the wasted energy heat this
must be subtracted from the VA rating.
With power supplies you have to put more in than you get out that's why
they run warm, the whole load has to be considered.
If your worried about a computer power supply, check this 'Power supply
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