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.

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PowerDsine Presentation

October 2005

Page 12

Page 12
Image 12
PowerDsine IEEE802.3 manual PoEp Power Architecture-AC UPS