公开(公告)号：US11532981B2

公开(公告)日：2022-12-20

申请号：US17326670

申请日：2021-05-21

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Stewart Gavin Goodson, II ,  Daniel Humphrey ,  Robin Kel Schrader

IPC: H02M1/32 ,  H02M3/04

Abstract: A power supply system includes a plurality of power supplies coupled to a common power bus. Each of the plurality of power supplies adjusts an output voltage set-point within a droop window in response to an excursion sensed voltage on the common power bus reflecting the current load on the power supply system. In response to a transient in the sensed voltage being above or below the droop window, each power supply may shift its droop window up or down. If the droop window of each power supply is at a maximum or minimum value within a voltage regulation window, each power supply may respond to a transient in the sensed voltage by compressing the droop window.

公开(公告)号：US11316336B2

公开(公告)日：2022-04-26

申请号：US16191362

申请日：2018-11-14

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Rama Prasad Atluri ,  Stewart Gavin Goodson, II ,  Mark A. Lawrence

IPC: H02H3/093 ,  H02H3/06

Abstract: A system and method of protecting the input components of a power supply. An input overcurrent protection module is provided, which may be implemented in firmware, which monitors the input current through an input interface of the power supply. When the input current exceeds a threshold current (i.e., a current above the maximum rating of an input component, such as an input cable), the input current protection module determines whether an input overcurrent event is occurring. When it is determined that an input overcurrent event has occurred, the input current protection module disables the output circuitry of the power supply and triggers a few timers. The input overcurrent protection module continues to monitor the input and, if the input current continues to exceed the threshold current, is configured to shut down the power supply. In this way, input components may be protected from overcurrent issues in high-power systems.

公开(公告)号：US20210303690A1

公开(公告)日：2021-09-30

申请号：US16830976

申请日：2020-03-26

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Stewart Gavin Goodson, II ,  Daniel Humphrey ,  Robin Kel Schrader

IPC: G06F21/57 ,  G06F21/81

Abstract: In some examples, a trust controller generates a first value and send the first value to a target controller of a subsystem, and generates a first verification value based on the first value and a known good code image for the target controller. The trust controller receives a second verification value from the target controller, the second verification value based on the first value and a code image to be executed at the target controller. The trust controller determines whether the code image to be executed at the target controller is compromised based on the first verification value and the second verification value.

公开(公告)号：US20190332155A1

公开(公告)日：2019-10-31

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 ,  G06F1/30 ,  G06F1/28

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.

公开(公告)号：US20190288673A1

公开(公告)日：2019-09-19

申请号：US15919551

申请日：2018-03-13

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Mohamed Amin Bemat ,  Daniel Humphrey ,  Stewart Gavin Goodson, II ,  Michael Delany

IPC: H03K3/017 ,  H03K17/687 ,  G05B13/02

Abstract: An example system includes a control interface and a device coupled to the control interface. The control interface may generate a parameter. The device may receive the parameter from the control interface, generate a switching waveform and current reference, adjust the switching waveform to generate an output current, and adjust the output current by using an error amplifier to provide an output current that conforms to at least one parameter.

公开(公告)号：US10389065B2

公开(公告)日：2019-08-20

申请号：US15660156

申请日：2017-07-26

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Stewart Gavin Goodson, II ,  Daniel Humphrey ,  Michael R. Miller

IPC: G03B13/00 ,  H01R13/641 ,  H01R43/26 ,  H01R13/66

Abstract: Examples herein relate to an electro-mechanical system for power cord detection, the system comprising a pin contained in a cavity of a receptacle adapted to receive a power cord, the pin comprising a first conductive pad, a second and a third conductive pads forming an open circuit and separated from the first conductive pad and an electrical circuit. The first conductive pad is adapted to be moved responsive to the power cord depressing the pin and the electrical circuit provides a first output responsive to the first conductive pad shorting the second and the third conductive pads.