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    REMOTE SWITCH SYNCHRONIZATION FOR PULSE POWER AND FAULT MANAGED POWER (FMP) APPLICATIONS
    31.
    发明公开
    REMOTE SWITCH SYNCHRONIZATION FOR PULSE POWER AND FAULT MANAGED POWER (FMP) APPLICATIONS 审中-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.

    Electrical power control and fault protection
    37.
    发明授权
    Electrical power control and fault protection 有权

    公开(公告)号：US10216249B2

    公开(公告)日：2019-02-26

    申请号：US15277560

    申请日：2016-09-27

    Applicant: Cisco Technology, Inc.

    Inventor： Douglas Paul Arduini ,  Jonathan Lee Smith ,  Joel Richard Goergen ,  Marc Henry Mantelli

    IPC: G06F1/32 ,  G06F1/30 ,  H02H3/05 ,  H02H3/04 ,  H02H7/30 ,  G01R31/44

    Abstract: A fault processing subsystem of an electronics assembly, senses an alarm state at an output of a first power distribution element of multiple power distribution elements arranged in a hierarchy in the electronics assembly. The first element is at a level of the hierarchy other than the top level, and the alarm state corresponds to an output of the first element being different than an expected output of that element. The fault processing subsystem commands, in response to the sensing the alarm state, the first element to disable via a control input to the first element. In response to the fault processing subsystem thereafter sensing an alarm state at the power output of the commanded element, the fault processing subsystem commands an element at the next higher level in the hierarchy from the first element to disable.

    FAULT MANAGED POWER IN A POWER DISTRIBUTION UNIT
    38.
    发明申请
    FAULT MANAGED POWER IN A POWER DISTRIBUTION UNIT 有权

    公开(公告)号：US20250038494A1

    公开(公告)日：2025-01-30

    申请号：US18360134

    申请日：2023-07-27

    Applicant: Cisco Technology, Inc.

    Inventor： Chad M. Jones ,  Jason Dewayne Potterf ,  Joel Richard Goergen ,  Elizabeth Kochuparambil ,  Douglas Paul Arduini

    IPC: H02B1/26 ,  H02B1/01 ,  H02B1/20

    Abstract: A power distribution unit (PDU) includes a housing configured to be mounted into or on a rack that has a plurality of shelf positions for a variety of computing equipment, networking equipment or data storage equipment. The PDU includes power inputs. The power inputs are configured to receive one or more of: alternating current (AC) power, high voltage direct current (DC) power, single-phase fault managed power, or multi-phase fault managed power. The PDU further includes at least one fault managed power module configured to be contained in the housing, the at least one fault managed power module including a power transmitter configured to generate single-phase or multi-phase fault managed power from the AC power and/or high voltage DC power. The PDU also includes a plurality of connectors on the housing and configured to provide cable connections to one or more of the plurality of shelf positions of the rack.

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