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    Synchronized startup of power supplies in electrical systems
    12.
    发明授权
    Synchronized startup of power supplies in electrical systems 有权

    公开(公告)号：US10886749B2

    公开(公告)日：2021-01-05

    申请号：US16168479

    申请日：2018-10-23

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Daniel Humphrey ,  Stewart G. Goodson ,  Robin Schrader

    IPC: H02J3/40 ,  G05B15/02 ,  G06F1/28 ,  G06F9/30

    Abstract: A method for synchronizing startup of a plurality of power supplies in an electrical system includes supplying input power to a first power supply to supply power to an auxiliary converter and an auxiliary controller. The method also includes monitoring, via the auxiliary controller, a signal shared by each of the plurality of power supplies. The method further includes incrementally increasing, via the auxiliary controller, a value of the shared signal to a next incremental value of a plurality of specified values. The method also includes enabling, via the auxiliary controller, each of the power supplies to supply power to a load when the value of the shared signal is set to a maximum value of the specified values.

    POWER SUPPLY HAVING A THRESHOLD INDICATOR
    13.
    发明申请
    POWER SUPPLY HAVING A THRESHOLD INDICATOR 审中-公开

    公开(公告)号：US20200379535A1

    公开(公告)日：2020-12-03

    申请号：US16424831

    申请日：2019-05-29

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Stewart G. Goodson, II ,  Daniel Humphrey ,  Robin K. Schrader

    IPC: G06F1/30 ,  G01R31/40

    Abstract: A power supply may include a power input to connect to a power source to receive an input power for the power supply, a bulk capacitor operatively connected to the power input, and a threshold manager having a processor operatively connected to the power input and the bulk capacitor. The threshold manager to monitor the input power, calculate a threshold to perform a shutdown operation based on a shutdown requirement provided by a computing device, and in response to a power loss of the input power, monitor a bulk voltage of the bulk capacitor and send an alert to the computing device to perform the shutdown operation when the bulk voltage meets the threshold.

    Overcurrent event power throttling
    14.
    发明授权
    Overcurrent event power throttling 有权

    公开(公告)号：US10747291B2

    公开(公告)日：2020-08-18

    申请号：US15964532

    申请日：2018-04-27

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Daniel Humphrey ,  Stewart Gavin Goodson, II ,  Mark Rivera

    IPC: G06F1/32 ,  G06F1/3206 ,  G06F1/28 ,  G06F1/3293 ,  G06F1/30

    Abstract: An example system includes a server including a power supply and a microcontroller. The power supply may store parameters for a plurality of different ranges of overcurrent and a plurality of corresponding different time periods. The power supply may also receive information from the electrical component corresponding to the speed at which the electrical component can reduce the amount of power the electrical component is consuming. The controller may receive information from the power supply to determine the amount of current that will cause an overcurrent event in the electrical component. The controller may signal the electrical component to reduce the amount of power the electrical component is drawing from the power supply in response to the detected amount of current corresponding to the overcurrent event.

    FUSE HAVING PARALLEL TRANSORB DEVICE WITH SWITCH
    16.
    发明申请
    FUSE HAVING PARALLEL TRANSORB DEVICE WITH SWITCH 审中-公开

    公开(公告)号：US20200185911A1

    公开(公告)日：2020-06-11

    申请号：US16212594

    申请日：2018-12-06

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Mohamed Amin Bemat ,  Daniel Humphrey ,  Benjamin Wade Dumas

    IPC: H02H9/02 ,  H03K17/082

    Abstract: An electronic fuse (e-fuse) for controlling input current of a load includes a transistor switch and a transorb device that is coupled in parallel to the transistor switch between a source and a drain of the transistor switch. A circuit comprising the transistor switch and the transorb device in parallel comprises a first end and a second end. The first end of the circuit is coupled to a power bus. The second end of the circuit is coupled to a first node of the load. The e-fuse includes an RC circuit comprising a resistor coupled in series with a first capacitor. The RC circuit is coupled between the power bus at the first end of the circuit and a return. The return is coupled to a second node of the load. The e-fuse includes a second capacitor that is coupled between the return and the second end of the circuit.

    SERIAL BOOTLOADING OF POWER SUPPLIES
    18.
    发明申请
    SERIAL BOOTLOADING OF POWER SUPPLIES 审中-公开

    公开(公告)号：US20180373524A1

    公开(公告)日：2018-12-27

    申请号：US16063857

    申请日：2016-01-13

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Rameez Kazi ,  Daniel Humphrey ,  Michael Miller

    IPC: G06F8/65 ,  G06F1/26 ,  G11C16/30

    Abstract: One example of a system includes a server, a plurality of power supplies, and a system controller. The plurality of power supplies are electrically coupled to the server and each power supply includes machine readable instructions. The system controller updates the machine readable instructions of each of the plurality of power supplies one at a time while maintaining power to the system controller from at least one of the plurality of power supplies.

    Plurality of converters extending duty cycle by checking voltage thresholds
    19.
    发明授权
    Plurality of converters extending duty cycle by checking voltage thresholds 有权

    公开(公告)号：US10020737B1

    公开(公告)日：2018-07-10

    申请号：US15383346

    申请日：2016-12-19

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Daniel Humphrey ,  Mohamed Amin Bemat

    IPC: H02M3/158 ,  H02M3/07

    Abstract: An example device in accordance with an aspect of the present disclosure includes a first converter to selectively convert a first input signal to a first output signal, and a second converter to selectively convert a second input signal to a second output signal. A controller is to control switches of the first and second converters based on the input signals and output signals, and based on operating the first and second converters exclusively with respect to each other such that a total of first and second duty cycles does not exceed one.

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