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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：US20240258913A1
公开(公告)日：2024-08-01
申请号：US18161975
申请日：2023-01-31
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Mohamed Amin Bemat
Abstract: A power supply unit comprises holdup circuitry and a controller. The holdup circuitry comprises a supply line, a ground line, a first holdup capacitor, a second holdup capacitor, and switching circuitry. The switching circuitry switches the holdup circuitry between a first configuration in which the first holdup capacitor and second holdup capacitor are coupled in parallel between the supply line and the ground line and a second configuration in which the first holdup capacitor and second holdup capacitor are coupled in series between the supply line and the ground line. The controller is configured to detect that an output voltage of the holdup circuitry has dropped to a threshold voltage and, in response, control the switching circuitry to cause the holdup circuitry to change from the first configuration to the second configuration.
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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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公开(公告)号：US20190354154A1
公开(公告)日：2019-11-21
申请号：US15983222
申请日：2018-05-18
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Kirk Yates , Mohamed Amin Bemat , Christopher L. Culpepper
Abstract: Inductors are described herein. In one example, an inductor can include a first lead positioned on a first side of the inductor to couple the inductor to a first circuit that includes a power supply for a second circuit, and a second lead positioned on a second side of the inductor to couple the inductor to the second circuit to provide electrical power from the power supply to electrical components coupled to the second circuit.
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Patent Agency Ranking
公开(公告)号：US20190324067A1
公开(公告)日：2019-10-24
申请号：US15960708
申请日：2018-04-24
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Mohamed Amin Bemat , Thi Vu , Kirk Yates
Abstract: In some examples, a controller may include a processing resource and a memory resource storing machine readable instructions executable to cause the processing resource to set an electrical power threshold, monitor an amount of electrical power distributed between a plurality of phases of a multi-phase converter operation. The controller may detect a load disparity between a particular phase of the plurality of phases, disable the particular phase, and redistribute the electrical power amongst the remaining phases of the multi-phase converter operation.
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公开(公告)号：US20190025902A1
公开(公告)日：2019-01-24
申请号：US15652657
申请日：2017-07-18
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Mohamed Amin Bemat , Ali Salem Ba·Thunya
Abstract: A computing device including a motherboard. The motherboard is coupled to a memory socket, a power rail, and a regulator controller. The memory socket is able to couple to a circuit board that includes memory circuitry. The power rail provides a high-voltage power signal to power circuitry on the circuit board. The power rail provides the high-voltage power signal through the memory socket. The regulator controller provides a control signal to power circuitry on the circuit board. The control signal includes a pulse width modulation signal. An output voltage of the power circuitry on the circuit board may be controlled by the control signal.
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公开(公告)号：US20180097526A1
公开(公告)日：2018-04-05
申请号：US15567806
申请日：2015-07-02
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Chung-Ping Ku , Mohamed Amin Bemat
CPC classification number: H03M1/1245 , G01R19/2503 , G01R19/2509 , H03M2201/715
Abstract: According to some examples, systems and methods are provided for voltage sampling using one or more analog-to-digital converters (ADCs) to sense divided portions of a sampled voltage (e.g., of an output signal), using the one or more analog-to-digital converters to provide a plurality of digital values representative of those divided portions, and combining the plurality of digital values to produce a total digital value representative of the sampled voltage. Such systems and methods can achieve a high resolution for the total digital value while permitting use of ADCs that have a resolution lower than would otherwise be required to achieve the high resolution.
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公开(公告)号：US20160181862A1
公开(公告)日：2016-06-23
申请号：US14910303
申请日：2013-09-27
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Daniel Humphrey , Mohamed Amin Bemat , Samantha Jean Castillo
IPC: H02J9/06
Abstract: Examples, disclosed herein, energize a first power supply through an enablement of a first relay to provide power to a load while a second power supply remains de-energized through a disablement of a second relay. Additionally, the examples detect a fault associated with the first power supply and de-energize the first power supply through a disablement of the first relay. Further, the examples energize the second power supply through an enablement of the second relay to provide power to the load, in response to the disablement of the first relay.
Abstract translation: 本文公开的示例通过启用第一继电器来激励第一电源，以在第二电源通过第二继电器的禁用而保持断电的同时为负载供电。 此外，这些示例检测与第一电源相关联的故障，并且通过禁用第一继电器来使第一电源断电。 此外，这些示例响应于第一继电器的禁用，通过启用第二继电器来激励第二电源以向负载提供电力。
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公开(公告)号：US11340680B2
公开(公告)日：2022-05-24
申请号：US16919349
申请日：2020-07-02
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Mohamed Amin Bemat , Daniel Humphrey
IPC: G06F1/30
Abstract: Examples described herein relate to a system controller for tracking a characteristic system energy of a computing system. The system controller may retrieve the characteristic system energy of the computing system from a voltage regulator (VR). The VR may include a VR controller, one or more phase converters, and an output capacitor coupled to a load to provide an operating voltage to the load. The characteristic system energy is related to a sum of capacitances comprising a capacitance of the output capacitor and a capacitance of the load and is determined by the VR controller based on a voltage at the output capacitor and a charging current or a discharging current of the output capacitor via the one or more phase converters. Further, the system controller may determine whether to initiate a corrective action for the VR based on a comparison between the characteristic system energy and a threshold value.
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