Conclusions
Increasing minimum PoEp voltage from 44V to 51V would increase overall system efficiency
Costs of 51V PS and 48V PS are approximately the same and from technical point of view would be beneficial to have minimum 51V in PoEp PSE
Regardless of output voltage consideration, adding boost circuit for system with batteries back up, would increase battery useful life in POE systems
www.PowerDsine.com | PowerDsine Presentation | October 2005 | Page 15 |