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公开(公告)号：US10396652B1
公开(公告)日：2019-08-27
申请号：US15964490
申请日：2018-04-27
Applicant: Hewlett Packard Enterprise Development LP
Abstract: The examples include methods and apparatuses to control power adjustments. Controlling power adjustments can include receiving, from the sensor, a measurement of the power, comparing the measurement of the power to a pre-defined threshold, responsive to determining that the measurement is outside the scope of the threshold, calculating an adjustment to the consumption of the power by a load, and providing the adjustment to a power supply of the load to adjust the power consumed by the power supply.
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公开(公告)号：US10284218B1
公开(公告)日：2019-05-07
申请号：US15964410
申请日：2018-04-27
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Michael Delany , Stewart Gavin Goodson, II , Daniel Humphrey
Abstract: An example apparatus includes a windowing component. The windowing component may set a first voltage level as an upper bound for a voltage window and set a second voltage level as a lower bound for the voltage window. The windowing component may modulate an input signal to have a maximum magnitude less than the upper bound for the voltage window and a minimum magnitude greater than the lower bound for the voltage window.
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公开(公告)号：US20220376608A1
公开(公告)日：2022-11-24
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
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.
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公开(公告)号：US20220216685A1
公开(公告)日：2022-07-07
申请号：US17703090
申请日：2022-03-24
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Rama Prasad Atluri , Stewart Gavin Goodson, II , Mark A. Lawrence
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.
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公开(公告)号：US11314867B2
公开(公告)日：2022-04-26
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
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.
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Patent Agency Ranking
公开(公告)号：US10852801B2
公开(公告)日：2020-12-01
申请号：US15706627
申请日：2017-09-15
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Daniel Humphrey , Stewart Gavin Goodson, II , Stephen Airey
Abstract: Example implementations relate to determining a failure event of a power supply. In some examples, an apparatus may comprise logic circuitry coupled to a signal line, the logic circuitry to receive a monitor signal via the signal line, where the monitor signal corresponds to an internal voltage of a power supply that is consumed wholly by the power supply, compare the monitor signal to a reference signal, and determine, based on the comparison, whether a failure event has occurred in the power supply.
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公开(公告)号：US10671051B2
公开(公告)日：2020-06-02
申请号：US16155842
申请日：2018-10-09
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Daniel Humphrey , David A. Moore , Stewart Gavin Goodson, II
IPC: G05B19/406 , H02J13/00
Abstract: A method for detecting thermal events in an electrical system includes: synchronizing, via a controller, measurements of power consumed by each of a plurality of load elements during an interval with one another and with measurements of power supplied by each of a plurality of power sources to the plurality of load elements during the interval; determining a differential between a sum of the power consumed by the load elements during the interval and a sum of the power supplied by the power sources to the plurality of load elements during the interval; comparing the differential to a predetermined threshold; and determining whether a thermal event has occurred based on the comparison of the differential to the predetermined threshold.
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公开(公告)号：US10541678B2
公开(公告)日：2020-01-21
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 , G05B13/02 , H03K17/687
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.
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公开(公告)号：US20250013791A1
公开(公告)日：2025-01-09
申请号：US18887181
申请日：2024-09-17
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Stewart Gavin Goodson, II , Daniel Humphrey , Robin Kelley Schrader
Abstract: A method, system, and device for using an interface controller to validate and authenticate controller code for a commodity device to be included within a computer system (e.g., a power supply) are provided. In one example, a commodity device controller includes dynamic memory for control software (e.g., control code to control operation of the commodity device) that may be validated (and/or updated) using an interface controller. The interface controller may perform this update/validation at startup (or run-time) to ensure secure control over aspects of the computer device including the commodity device control code. If a security risk is detected it may be mitigated in various ways, including disabling of the commodity device. Control code provided by third-parties (e.g., supplier of commodity device) may be validated and secured using disclosed techniques.
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公开(公告)号：US20240403496A1
公开(公告)日：2024-12-05
申请号：US18329118
申请日：2023-06-05
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Abstract: A power supply unit (PSU) comprises power conversion circuitry to convert input power into output power for an electronic system, microcontrollers to control operations of the power conversion circuitry, and a secure element communicably connected to a first microcontroller. The secure element and the microcontrollers are all paired together with each storing shared pairing information. The secure element and the microcontrollers comprise security logic. The security logic may be configured to, in response to a power on sequence being initiated, validate the secure element and the microcontrollers based on the shared pairing information, and make completion of the power on sequence conditional on successful validation. The security logic may be configured to, in response to receiving a new firmware image for updating one of the microcontrollers, use the secure element to validate the new firmware image and make acceptance of the new firmware image conditional on successful validation.
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