公开(公告)号：US20190081556A1

公开(公告)日：2019-03-14

申请号：US15699457

申请日：2017-09-08

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Deven Patel ,  Yu Liu ,  Sanh Huynh

IPC: H02M3/04 ,  H02M7/06 ,  H04L12/10

Abstract: An example system can determine a power consumption of each of a first and a second powered device ports, determine an output voltage demand of each of the first and the second powered device ports based on the determined power consumptions, and based on the output voltage demand, adjust an output voltage to each of the first and the second powered device ports via the power controller,

公开(公告)号：US20200252225A1

公开(公告)日：2020-08-06

申请号：US16263550

申请日：2019-01-31

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Yu Liu

IPC: H04L12/10 ,  H04L12/40 ,  G06F1/26 ,  G06F1/3206

Abstract: A Power-Over-Ethernet (PoE) powered device comprises a power interface coupled by an Ethernet cable to a PoE port of a power source equipment device, a power monitor coupled to the power interface to obtain at least two voltage measurements and at least two current measurements of a power signal supplied on the Ethernet cable, and a processor coupled to the power monitor to compute a cable resistance value for the Ethernet cable as a function of the at least two voltage and current measurements. Intelligent circuitry in a PoE PD may monitor and compute an actual cable resistance value and enable the PD to more fully utilize the power actually supplied from the PSE.

公开(公告)号：US11114936B2

公开(公告)日：2021-09-07

申请号：US15699457

申请日：2017-09-08

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Deven Patel ,  Yu Liu ,  Sanh Huynh

IPC: H02M3/04 ,  H04L12/10 ,  H04L12/40 ,  G06F1/26 ,  H02M7/06

Abstract: An example system can determine a power consumption of each of a first and a second powered device ports, determine an output voltage demand of each of the first and the second powered device ports based on the determined power consumptions, and based on the output voltage demand, adjust an output voltage to each of the first and the second powered device ports via the power controller.