公开(公告)号：US20240113903A1

公开(公告)日：2024-04-04

申请号：US18486238

申请日：2023-10-13

申请人： Cisco Technology, Inc.

发明人： Chad M. Jones ,  Joel Richard Goergen ,  George Allan Zimmerman ,  Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Jason DeWayne Potterf ,  Sung Kee Baek

IPC分类号： H04L12/10 ,  H03M13/03 ,  H03M13/37 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02

CPC分类号： H04L12/10 ,  H03M13/03 ,  H03M13/373 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02 ,  H03M13/1515 ,  H04B2203/542

摘要： In one embodiment, a method includes transmitting pulse power on two wire pairs, the pulse power comprising a plurality of high voltage pulses with the high voltage pulses on the wire pairs offset between the wire pairs to provide continuous power, performing low voltage fault detection on each of the wire pairs between the high voltage pulses, and transmitting data on at least one of the wire pairs during transmittal of the high voltage pulses. Data transmittal is suspended during the low voltage fault detection.

公开(公告)号：US11916614B2

公开(公告)日：2024-02-27

申请号：US17171785

申请日：2021-02-09

申请人： CISCO TECHNOLOGY, INC.

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

IPC分类号： G06F1/30 ,  G01R31/08 ,  G01R31/50 ,  G05B9/02 ,  H02J13/00 ,  H04B3/54 ,  H04L12/10 ,  H04L12/40

CPC分类号： H04B3/54 ,  G01R31/083 ,  G01R31/50 ,  G05B9/02 ,  G06F1/305 ,  H02J13/00 ,  H02J13/00032 ,  H04L12/10 ,  H04L12/40045

摘要： 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：US11848790B2

公开(公告)日：2023-12-19

申请号：US17884124

申请日：2022-08-09

申请人： Cisco Technology, Inc.

发明人： Chad M. Jones ,  Joel Richard Goergen ,  George Allan Zimmerman ,  Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Jason DeWayne Potterf ,  Sung Kee Baek

IPC分类号： H03M13/00 ,  H04L12/10 ,  H03M13/03 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02 ,  H03M13/37 ,  H03M13/15

CPC分类号： H04L12/10 ,  H03M13/03 ,  H03M13/373 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02 ,  H03M13/1515 ,  H04B2203/542

摘要： In one embodiment, a method includes transmitting pulse power on two wire pairs, the pulse power comprising a plurality of high voltage pulses with the high voltage pulses on the wire pairs offset between the wire pairs to provide continuous power, performing low voltage fault detection on each of the wire pairs between the high voltage pulses, and transmitting data on at least one of the wire pairs during transmittal of the high voltage pulses. Data transmittal is suspended during the low voltage fault detection.

公开(公告)号：US11444791B2

公开(公告)日：2022-09-13

申请号：US16999754

申请日：2020-08-21

申请人： CISCO TECHNOLOGY, INC.

发明人： Chad M. Jones ,  Joel Richard Goergen ,  George Allan Zimmerman ,  Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Jason Dewayne Potterf ,  Sung Kee Baek

IPC分类号： H03M13/00 ,  H04L12/10 ,  H03M13/03 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02

摘要： In one embodiment, a method includes transmitting pulse power on two wire pairs, the pulse power comprising a plurality of high voltage pulses with the high voltage pulses on the wire pairs offset between the wire pairs to provide continuous power, performing low voltage fault detection on each of the wire pairs between the high voltage pulses, and transmitting data on at least one of the wire pairs during transmittal of the high voltage pulses. Data transmittal is suspended during the low voltage fault detection.

公开(公告)号：US20220116238A1

公开(公告)日：2022-04-14

申请号：US17560424

申请日：2021-12-23

申请人： CISCO TECHNOLOGY, INC.

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

IPC分类号： H04L12/10 ,  G01R31/08 ,  H04L41/0677

摘要： 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：US10790997B2

公开(公告)日：2020-09-29

申请号：US16704502

申请日：2019-12-05

申请人： CISCO TECHNOLOGY, INC.

发明人： Chad M. Jones ,  Joel Richard Goergen ,  George Allan Zimmerman ,  Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Jason DeWayne Potterf ,  Sung Kee Baek

IPC分类号： H03M13/00 ,  H04L12/10 ,  H03M13/03 ,  H04B3/54 ,  H04L12/24 ,  H04W80/02

摘要： In one embodiment, a method includes transmitting data on two wire pairs carrying pulse power, wherein the pulse power comprises a plurality of voltage pulses with the voltage pulses on the wire pairs offset between the wire pairs to provide continuous power and identifying transitions between at least one of a pulse-on time and a pulse-off time, and a pulse-off time and a pulse-on time on at least one of the wire pairs. Data transmission on the wire pair is controlled during the identified transitions on the wire pair to prevent interference between the pulse power and the data.

公开(公告)号：US20200235949A1

公开(公告)日：2020-07-23

申请号：US16704502

申请日：2019-12-05

申请人： CISCO TECHNOLOGY, INC.

发明人： Chad M. Jones ,  Joel Richard Goergen ,  George Allan Zimmerman ,  Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Jason DeWayne Potterf ,  Sung Kee Baek

IPC分类号： H04L12/10 ,  H03M13/03 ,  H04W80/02 ,  H04B3/54 ,  H04L12/24

摘要： In one embodiment, a method includes transmitting data on two wire pairs carrying pulse power, wherein the pulse power comprises a plurality of voltage pulses with the voltage pulses on the wire pairs offset between the wire pairs to provide continuous power and identifying transitions between at least one of a pulse-on time and a pulse-off time, and a pulse-off time and a pulse-on time on at least one of the wire pairs. Data transmission on the wire pair is controlled during the identified transitions on the wire pair to prevent interference between the pulse power and the data.

公开(公告)号：US11990952B2

公开(公告)日：2024-05-21

申请号：US18186301

申请日：2023-03-20

申请人： Cisco Technology, Inc.

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

IPC分类号： H04B3/54 ,  G01R31/08 ,  G01R31/50 ,  G05B9/02 ,  G06F1/30 ,  H02J13/00 ,  H04L12/10 ,  H04L12/40

CPC分类号： H04B3/54 ,  G01R31/083 ,  G01R31/50 ,  G05B9/02 ,  G06F1/305 ,  H02J13/00 ,  H02J13/00032 ,  H04L12/10 ,  H04L12/40045

摘要： In one embodiment, a method includes receiving low voltage pulse power from power sourcing equipment at a powered device, synchronizing the powered device with a waveform of the low voltage pulse power received from the power sourcing equipment, and operating the powered device with high voltage pulse power received from the power sourcing equipment.

公开(公告)号：US11894936B2

公开(公告)日：2024-02-06

申请号：US17848881

申请日：2022-06-24

申请人： Cisco Technology, Inc.

发明人： Joel Richard Goergen ,  Chad M. Jones ,  Jessica Kiefer ,  Douglas Paul Arduini

IPC分类号： H04L12/10 ,  H04L12/28 ,  G06F1/20 ,  G06F1/26

CPC分类号： H04L12/10 ,  G06F1/20 ,  G06F1/266 ,  H04L12/2885

摘要： In one embodiment, an apparatus includes a power adapter configured for direct connection to a Power Supply Unit (PSU) installed in a network device, the power adapter comprising a power input port for receiving power on an Ethernet cable, a power converter module for converting the power received at the power input port to a PSU input power, and a power output connector for connection with a PSU power input connector.

公开(公告)号：US20230354548A1

公开(公告)日：2023-11-02

申请号：US18301655

申请日：2023-04-17

申请人： Cisco Technology, Inc.

发明人： Douglas Paul Arduini

IPC分类号： H05K7/20

CPC分类号： H05K7/20154 ,  H05K7/20209 ,  H05K7/20409 ,  H05K7/20327

摘要： Presented herein are techniques to improve air cooling for higher power and power density power supply examples, including using latent heat of vaporization as a single-phase liquid-cooling-to-air closed-loop system. These techniques may not be limited to power supplies, but may be applicable to other air cooling requirements in assemblies and systems.