Power transformation device of a powered device in a power...

Details Power transformation device of a powered device in a power... Power transformation device of a powered device in a power...

2006-12-01

2011-11-01

Elahee, MD S (Department: 2614)

Telephonic communications

Subscriber line or transmission line interface

Power supply

C714S043000, C439S676000, C363S125000, C379S030000, C379S402000

Reexamination Certificate

active

08050399

ABSTRACT:
A power transformation device of a powered device in a power over Ethernet system includes a first transformer coupled between a first pin and a second pin of an Ethernet terminal, a second transformer coupled between a third pin and a sixth pin of the Ethernet terminal, and a bridge rectifier coupled between a center tap of the first transformer and a center tap of the second transformer, for rectifying power outputted from the center taps of the first transformer and the second transformer, so as to provide power for the powered device.

REFERENCES:
patent: 6009008 (1999-12-01), Pelly
patent: 6295356 (2001-09-01), De Nicolo
patent: 7823026 (2010-10-01), Karam et al.
patent: 2006/0092826 (2006-05-01), Karam et al.
patent: 2007/0015416 (2007-01-01), Gutierrez et al.
patent: 1604546 (2005-04-01), None

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