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公开(公告)号：US09997995B2
公开(公告)日：2018-06-12
申请号：US14764571
申请日：2013-02-28
Applicant: HEWLETT-PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Daniel Humphrey , Mohamed Amin Bemat
CPC classification number: H02M1/4216 , H02J1/14 , H02J3/46 , H02M7/04 , Y10T307/406
Abstract: A sharing criteria metric is received for each of three phases of a three-phase power. Loads on power converters receiving the three phase power are adjusted based on the sharing criteria metric of each of the three phases.
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公开(公告)号：US09798348B2
公开(公告)日：2017-10-24
申请号：US14808641
申请日：2015-07-24
Applicant: Hewlett Packard Enterprise Development LP
Inventor： David P. Mohr , Daniel Humphrey
CPC classification number: G05F5/00 , H02M3/04 , H02M3/156 , H02M2001/0022
Abstract: A power converter (14) can include a switching system (18) to convert a direct current (DC) input voltage to an output voltage based on a switching signal having a duty-cycle. A controller (16) can set the duty-cycle of the switching signal, depending on the DC input voltage, to one of a substantially constant value, such that the output voltage follows the DC input voltage in a normal mode, and a value that varies inversely with respect to the DC input voltage, such that the output voltage is substantially constant in another mode.
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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：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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公开(公告)号：US11055080B2
公开(公告)日：2021-07-06
申请号：US16063857
申请日：2016-01-13
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Rameez Kazi , Daniel Humphrey , Michael Miller
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.
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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：US20200251924A1
公开(公告)日：2020-08-06
申请号：US16269111
申请日：2019-02-06
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： David P. Mohr , Daniel Humphrey , Stewart Gavin Goodson II , Robin Kelley Schrader
Abstract: A system including multiple power supplies is provided. Each of the power supplies is configured to provide a standby power to a management unit in the system through a standby output and a main power through a main output, when an input power signal has been received for the system. The system also includes a resistor configured to receive a standby signal from each of the power supplies to raise a signal voltage, wherein the standby signal is a pre-selected current. The system also includes a controller in each of the power supplies, the controller configured to raise the signal voltage to the specified value when the signal voltage is greater than a threshold, and to enable the standby power from a respective power supply to reach the management unit when the signal voltage is within the specified value. A method to use the above system for a synchronized power supply to a management unit is also provided.
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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：US20200103470A1
公开(公告)日：2020-04-02
申请号：US15746882
申请日：2015-07-31
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Mohamed Amin Bemat , Daniel Humphrey , Michael Delany
IPC: G01R31/40
Abstract: Various examples provide systems and methods in which a capacitor is charged by an active first power factor correction module and a voltage across the capacitor is determined while the second power factor correction module is exclusively active. A health state of the second power factor correction module may be determined based on the determined voltage across the capacitor.
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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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