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PowerDsine Presentation October 2005 Page 12
www.PowerDsine.com
PoEp Power Architecture-AC UPS
Cost of power supply with 44V or 51V outputs is approximately the
same. But under the same conditions, 51V output power supply will
have higher efficiency then 44V PS
Estimated cost of additional boost circuitry for supporting the change
from 45V to 52V for 500W power supply is about 10% cost of power
supply.