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公开(公告)号：US20250097060A1
公开(公告)日：2025-03-20
申请号：US18961781
申请日：2024-11-27
Applicant: Cisco Technology, Inc.
Inventor： Chad M. Jones , Joel Richard Goergen , George Allan Zimmerman , Richard Anthony O'Brien , Douglas Paul Arduini , Jason DeWayne Potterf , Sung Kee Baek
Abstract: 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.
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公开(公告)号：US12126399B2
公开(公告)日：2024-10-22
申请号：US18187006
申请日：2023-03-21
Applicant: Cisco Technology, Inc.
Inventor： Douglas Paul Arduini , Ruqi Li , Chad M. Jones , Sung Kee Baek , Jason DeWayne Potterf , Joel Richard Goergen
CPC classification number: H04B3/54 , G01R31/083 , G01R31/50 , G05B9/02 , G06F1/305 , H02J13/00 , H02J13/00032 , H04L12/10 , H04L12/40045
Abstract: Techniques are provided for detecting a fault across a pair of lines. Pulse power is applied across the pair of lines. The pulse power comprises alternating pulse on-time intervals and pulse off-time intervals. During a pulse off-time interval, a resistor is connected across the pair of lines and then disconnected when a voltage across the pair of lines reaches a first droop percentage in a first period of time. After disconnecting the resistor, it is determined whether the voltage across the pair of lines droops at least a second droop percentage within a second period of time that begins after the first period of time. Occurrence of a line-to-line fault across the pair of lines is determined when the voltage across the pair of lines droops by at least the second droop percentage or more within the second period of time.
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公开(公告)号：US12113588B2
公开(公告)日：2024-10-08
申请号：US17171723
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
CPC classification number: H04B3/54 , G01R31/083 , G01R31/50 , G05B9/02 , G06F1/305 , H02J13/00 , H02J13/00032 , H04L12/10 , H04L12/40045
Abstract: 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.
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24.发明公开公开(公告)号：US20240168533A1
公开(公告)日：2024-05-23
申请号：US17993323
申请日：2022-11-23
Applicant: Cisco Technology, Inc.
Inventor： Douglas Paul Arduini , Sung Kee Baek , Ruqi Li , Joel Richard Goergen , Chad M. Jones , Jason DeWayne Potterf
IPC: G06F1/30 , G06F1/3206 , G06F1/3296
CPC classification number: G06F1/30 , G06F1/3206 , G06F1/3296
Abstract: Techniques are provided to synchronize a remote power switch at a power receiver end of a power cable with a first power switch operation at a power source end of the cable, without any physical or data communication means for synchronization. This process may involve synchronization of a MOSFET-type switch with voltage pulsing at the power source cable end to a MOSFET-type isolation switch at the power receiver cable end to provide (voltage or load) power during the On-time and safety testing for a shock hazard during the Off-time. This method synchronizes switching pulses by sensing and synchronizing on the cable switching voltage transients from the source side. This method also involves blanking the additional switching voltage transients on the cable generated after the synchronized switching begins to maintain proper synchronization. These techniques may be used for a single-pair pulse power cable or with multi-pair multi-phase pulse power cables.
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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
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.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：US20230040178A1
公开(公告)日：2023-02-09
申请号：US17562444
申请日：2021-12-27
Applicant: Cisco Technology, Inc.
Inventor： Jason DeWayne Potterf , Chad M. Jones , Joel Richard Goergen
Abstract: Presented herein are techniques for power fault management that operates without power-source-side switching. A power transmitter is configured to provide power to a current loop, and a power receiver is configured to receive the power from the current loop. The power receiver is configured to, on a periodic basis, disconnect from the current loop to stop pulling power from current loop for a period of time to enable a safety check to be performed by the power transmitter. The power transmitter is configured to monitor current on the current loop, determine whether the current level on the current loop passes the safety check within a predetermined time interval since a determination that the current level was not within a safe range, and control connectivity of the power to the current loop based on whether the safety check has or has not passed within the predetermined time interval.
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公开(公告)号：US11322883B1
公开(公告)日：2022-05-03
申请号：US17113758
申请日：2020-12-07
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Jason DeWayne Potterf , Edward John Kliewer , Larkin Hale Andreaus , Yaodong Shen , Kevin Mechler , Tatenda Maxwell Mbwetu
IPC: H01R13/53 , H01R13/703 , H01R31/06 , H01R13/648 , H01R43/26
Abstract: In one embodiment, an electrical receptacle includes a housing, stationary electrical contacts for transferring power received at the electrical receptacle to a connected device, pin contacts for mating with socket contacts on a plug to create a first connection when the plug is moved along a longitudinal axis of the housing, and internal contacts extending from the pin contacts and located within the housing for mating with the stationary electrical contacts to create a second connection with movement of the plug different from movement for the first connection. An electrical arc created between one of the internal contacts and one of the stationary electrical contacts is contained within the housing. A method and adapter are also disclosed herein.
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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
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.
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