31 Jul
2001
31 Jul
'01
7:39 a.m.
Hi Bill,
Don't confuse WATTS with AMPS. You see, power is measured in watts and is
the product of voltage * amps, so a 10 WATT supply can produce either
10volts at 1 AMP or 1 Volt at 10 AMPS and still be a 10 WATT supply. The PC
supplies are typically 250 watts. When they supply 5V at 25AMPS that is
using only 125 WATTS. Your wall plug can supply 110Volts at 15AMPs which is
1650 WATTS. (however running a house wall plug at 15Amps for any length of
time will warm it up, and generally several wall plugs are on a single 20A
circuit (2200 Watts max))
--Chuck
At 12:32 PM 7/31/01 -0500, you wrote:
How can a normal PC XT power supply deliver 25-30A,
when its plugged
into a normal 15A wall socket? Or is the amperage way different in
the UK?
Bill