公开(公告)号：US20240113625A1

公开(公告)日：2024-04-04

申请号：US18537915

申请日：2023-12-13

Applicant: Cisco Technology, Inc.

Inventor： Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  George Allan Zimmerman

IPC: H02M3/158 ,  G06F1/18 ,  H02J1/10

CPC classification number: H02M3/1584 ,  G06F1/18 ,  H02J1/106 ,  H02M3/1586

Abstract: In one embodiment, a method includes transmitting multi-phase pulse power from power sourcing equipment to a powered device in a data center, wherein the multi-phase pulse power comprises multiple phases of power delivered in a sequence of pulses defined by alternating low direct current voltage states and high direct current voltage states, and synchronizing the pulses at the power sourcing equipment with the pulses at the powered device.

公开(公告)号：US11909320B2

公开(公告)日：2024-02-20

申请号：US18166159

申请日：2023-02-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  George Allan Zimmerman

IPC: H02M3/158 ,  H02J1/10 ,  G06F1/18

CPC classification number: H02M3/1584 ,  G06F1/18 ,  H02J1/106 ,  H02M3/1586

Abstract: In one embodiment, a method includes transmitting multi-phase pulse power from power sourcing equipment to a powered device in a data center, wherein the multi-phase pulse power comprises multiple phases of power delivered in a sequence of pulses defined by alternating low direct current voltage states and high direct current voltage states, and synchronizing the pulses at the power sourcing equipment with the pulses at the powered device.

公开(公告)号：US20230188042A1

公开(公告)日：2023-06-15

申请号：US18166159

申请日：2023-02-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  George Allan Zimmerman

IPC: H02M3/158 ,  H02J1/10 ,  G06F1/18

CPC classification number: H02M3/1584 ,  H02J1/106 ,  G06F1/18 ,  H02M3/1586

Abstract: In one embodiment, a method includes transmitting multi-phase pulse power from power sourcing equipment to a powered device in a data center, wherein the multi-phase pulse power comprises multiple phases of power delivered in a sequence of pulses defined by alternating low direct current voltage states and high direct current voltage states, and synchronizing the pulses at the power sourcing equipment with the pulses at the powered device.

公开(公告)号：US11258520B2

公开(公告)日：2022-02-22

申请号：US16913792

申请日：2020-06-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Douglas Paul Arduini ,  Richard Anthony O'Brien ,  Daniel Lee Barsotti ,  Sung Kee Baek

IPC: H04B10/07 ,  H04B10/80 ,  H02H1/00 ,  H02J1/00 ,  H04B10/077

Abstract: In one embodiment, a method includes receiving at a remote network device, power and data from a central network device, wherein the power is used to power the remote network device, performing auto-negotiation with the central network device, wherein the auto-negotiation includes operating the remote network device in a low voltage mode during fault sensing of a power circuit at the remote network device, and selecting a power operating mode, wherein selecting the power operating mode includes selecting a high voltage mode if no fault is detected during the fault sensing, the high voltage mode comprising DC (direct current) pulse power. An apparatus is also disclosed herein.

公开(公告)号：US20210167814A1

公开(公告)日：2021-06-03

申请号：US17171785

申请日：2021-02-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Douglas Paul Arduini ,  Sung Kee Baek ,  Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  Ruqi Li

IPC: H04B3/54 ,  G01R31/08 ,  H04L12/10 ,  G05B9/02 ,  H02J13/00 ,  G06F1/30 ,  G01R31/50

Abstract: In one embodiment, a method includes identifying at a first powered device in communication with power sourcing equipment, a second powered device in communication with the first powered device, wherein the first powered device is receiving high voltage pulse power from the power sourcing equipment, notifying the power sourcing equipment of the second powered device at the first powered device, and performing a low voltage power initialization at the first powered device with the second powered device before passing the high voltage pulse power to the second powered device.

公开(公告)号：US20210135890A1

公开(公告)日：2021-05-06

申请号：US16671508

申请日：2019-11-01

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Douglas Paul Arduini ,  Sung Kee Baek ,  Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  Ruqi Li

IPC: H04L12/10 ,  H02J13/00 ,  G05B9/02 ,  G01R31/08 ,  G01R31/02

Abstract: In one embodiment, a method includes transmitting from power sourcing equipment, low voltage pulse power to a powered device in a communications network, performing a safety test, enabling high voltage pulse power operation at the power sourcing equipment upon passing the safety test, and transmitting high voltage pulse power from the power sourcing equipment to the powered device. The powered device synchronizes with a waveform of the low voltage pulse power.

公开(公告)号：US20200328819A1

公开(公告)日：2020-10-15

申请号：US16913792

申请日：2020-06-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Douglas Paul Arduini ,  Richard Anthony O'Brien ,  Daniel Lee Barsotti ,  Sung Kee Baek

IPC: H04B10/80 ,  H02H1/00 ,  H02J1/00 ,  H04B10/077 ,  H04B10/07

Abstract: In one embodiment, a method includes receiving at a remote network device, power and data from a central network device, wherein the power is used to power the remote network device, performing auto-negotiation with the central network device, wherein the auto-negotiation includes operating the remote network device in a low voltage mode during fault sensing of a power circuit at the remote network device, and selecting a power operating mode, wherein selecting the power operating mode includes selecting a high voltage mode if no fault is detected during the fault sensing, the high voltage mode comprising DC (direct current) pulse power. An apparatus is also disclosed herein.

公开(公告)号：US20200295955A1

公开(公告)日：2020-09-17

申请号：US16380954

申请日：2019-04-10

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Sung Kee Baek ,  Ruqi Li ,  Joel Richard Goergen

IPC: H04L12/10 ,  H04L12/24 ,  G01R31/08

Abstract: In one embodiment, an apparatus comprises an input power interface for receiving input power, a power control system for transmitting DC (Direct Current) pulse power on multiple phases over a cable to a plurality of powered devices and verifying cable operation during an off-time of pulses in the DC pulse power, and a cable interface for delivery of the DC pulse power on the multiple phases and data over the cable to the powered devices. A method for transmitting multiple phase pulse power is also disclosed herein.

公开(公告)号：US10404097B2

公开(公告)日：2019-09-03

申请号：US15399765

申请日：2017-01-06

Applicant: Cisco Technology, Inc.

Inventor： Douglas P. Arduini ,  Sung Kee Baek ,  Richard Anthony O'Brien ,  John Beecroft ,  M. Baris Dogruoz

IPC: H02J9/06 ,  H02M1/00 ,  H02M3/04 ,  H02M7/04

Abstract: A power supply system may comprise a plurality of input buses and an output bus. A plurality of multi-input power supplies may be disposed between the plurality of input buses and the output bus. The plurality of multi-input power supplies may be configured to supply a predetermined amount of power to the output bus before and after a failure event. The failure event may comprise at least one of the following: a failure of a one of the plurality of multi-input power supplies and loss of power on one of the plurality of input buses. Each input to the power supply may include an independent power section to support near or full output power in the event of another input power loss. Any input line loss from an independent power bus/grid may provide line redundancy to the power supply and to the power system as an Uninterruptable Power Supply.