Manuals
/
PowerDsine
/
Computer Equipment
/
Power Supply
PowerDsine
IEEE802.3 manual PoEp Power Architecture-AC UPS, PowerDsine Presentation, October, Page
Models:
IEEE802.3
1
11
24
24
Download
24 pages
60.63 Kb
8
9
10
11
12
13
14
15
<
>
Specifications
Install
AC input and battery back up AC UPS input
How to
PowerDsine Presentation
Proposed Solution
Page 11
Image 11
PoEp Power
Architecture-AC
UPS
www.PowerDsine.com
PowerDsine Presentation
October 2005
Page
11
Page 10
Page 12
Page 11
Image 11
Page 10
Page 12
Contents
Arkadiy Peker Daniel Feldman Yair Darshan
Vancouver BC, November
IEEE802.3at Task Force
Technical Considerations regarding PoEp output voltage range
Part A
To show advantages of having PoEp minimum voltage of
Objectives
PowerDsine Presentation
To discuss optimum voltage range for PoEp
HP POE voltage range
3.06W
PoEp minimum voltage
Power dissipation
Maximum power
PoEp minimum voltage
Pd power
Power dissipation
PSE power
PoEp minimum voltage
Let consider different options in PoEp Power architectures
AC input and battery back up AC UPS input
PowerDsine Presentation
Page
PoEp Power Architecture-AC Input
PowerDsine Presentation
October
One of the arguments for not using 51V power supply is that back up battery operates up to ~ 43
PoEp Power Architecture-AC Input
HP POE Power Architecture-AC Input
Page
PoEp Power Architecture-AC UPS
PowerDsine Presentation
October
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
PoEp Power Architecture-AC UPS
Lb Db Qb Rs
PoEp with Boost circuit
POE PS Battery
PowerDsine Presentation
PowerDsine Presentation
PoEp with Add Power
AC or Battery
Add Power Circuit POE PS
Conclusions
Market considerations regarding 802.3at output voltage range
Part B
October
802.3af minimum PSE voltage Modular switches
802.3af modular installed base considerations
PowerDsine Presentation
October
How to solve the conflict
The Conflict is
PowerDsine Presentation
Proposed Solution
How to solve the conflict - PD side
Effects on PSE specifications PoEp PSE minimum voltage is
How to solve the conflict - PSE side
Summary
Page
Discussion
PowerDsine Presentation
October
Page
References
PowerDsine Presentation
October
Example for group A and group B With Pmax=40W
Annex A Enhanced Classification table
PowerDsine Presentation
Group B