公开(公告)号：US20220091654A1

公开(公告)日：2022-03-24

申请号：US17298561

申请日：2019-06-07

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Fangyong Dai ,  Peter Siyuan Zhang ,  Qijun Chen

IPC: G06F1/3206 ,  G06F1/20 ,  G06F11/30

Abstract: An example apparatus includes a power monitor, a memory, and a processor. The power monitor is to measure a power level of the apparatus. The memory is to store a power level to temperature increase rate correlation. The processor is in communication with the power monitor and the memory. The processor is to determine that an internal temperature threshold is to be exceeded based on the power level and the power level to temperature increase rate correlation. The processor also is to perform a device operation modification to reduce the power level in response to a determination that the internal temperature threshold is to be exceeded.

公开(公告)号：US10234918B2

公开(公告)日：2019-03-19

申请号：US15309827

申请日：2014-08-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Qijun Chen ,  Thomas Sawyers ,  Raghotham Nathadi

IPC: G06F1/26 ,  G06F1/32 ,  G06F1/24 ,  H02J7/00

Abstract: In an example implementation, a method of disconnecting a battery from a system, includes detecting that a reset button has been depressed for a preset time period. In response to the detecting, communication lines can be broken between an embedded controller and a system battery, and a command can be sent to the system battery to disconnect itself from the system.

公开(公告)号：US11264788B2

公开(公告)日：2022-03-01

申请号：US16641934

申请日：2017-12-08

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Asjad Shamim ,  Po Yu Li ,  Qijun Chen ,  Fangyong Dai

IPC: H02H3/08 ,  H02H9/02 ,  G06F1/30 ,  H02H1/00

Abstract: An example power adaptor includes a converter and a circuit to detect an overcurrent event at the converter and to pause power output of the converter when the overcurrent event is detected. The circuit is further to count a number of overcurrent events at the converter within a time period. The circuit is further to compare the number of overcurrent events to a threshold number and to switch off the power output of the converter when the number of overcurrent events passes the threshold number.

公开(公告)号：US20250044847A1

公开(公告)日：2025-02-06

申请号：US18923247

申请日：2024-10-22

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Fangyong Dai ,  Qijun Chen ,  Ann Alejandro Villegas ,  Ling Wei Chung ,  Daniel Joseph Luc

IPC: G06F1/26

Abstract: In some examples, an electronic device comprises a processor and a power circuit coupled to the processor. The power circuit is to provide power to the processor and to measure a current drawn from the power circuit by the processor. The electronic device also comprises a voltage regulator controller coupled to the processor and the power circuit. The voltage regulator controller is to receive a current usage prediction from the processor, receive the measurement from the power circuit, compare the current usage prediction and the measurement, and, based on the comparison, drive the power circuit in accordance with the measurement instead of the current usage prediction.

公开(公告)号：US20230387479A1

公开(公告)日：2023-11-30

申请号：US17824170

申请日：2022-05-25

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Fangyong Dai ,  Qijun Chen ,  Sze Hau Loh

IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/48 ,  G01R27/26 ,  G01R31/392 ,  G01R31/36

CPC classification number: H01M10/425 ,  H01M10/0525 ,  H01M10/48 ,  G01R27/2605 ,  G01R31/392 ,  G01R31/3648

Abstract: Example implementations relate to battery swelling determinations. In some examples, an electronic device can include a battery including a first surface and a second surface, where the second surface is opposite the first surface, a first conductor located on the first surface of the battery, and a second conductor located on the second surface of the battery, where the battery is to act as a dielectric medium such that a capacitance is generated by the electronic device via the first conductor, the second conductor, and the battery.

公开(公告)号：US20220393484A1

公开(公告)日：2022-12-08

申请号：US17339504

申请日：2021-06-04

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Fangyong Dai ,  Ann Alejandro Villegas ,  Qijun Chen ,  Gabriel Hector Valencia

IPC: H02J7/00

Abstract: Apparatus, systems, articles of manufacture, and methods to provide battery cell rebalancing are disclosed. An example apparatus includes a first battery cell having a first size. The apparatus further includes a second battery cell having a second size different than the first size. The apparatus further includes a first variable resistor couplable to the first battery cell. The apparatus further includes a second variable resistor couplable to the second battery cell. The apparatus further includes a sensor to determine a first internal resistance of the first battery cell, and a second internal resistance of the second battery cell. The apparatus further includes an integrated circuit to adjust a first resistance of the first variable resistor and a second resistance of the second variable resistor based on the first internal resistance and the second internal resistance.

公开(公告)号：US20220291729A1

公开(公告)日：2022-09-15

申请号：US17637576

申请日：2019-10-03

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Fangyong Dai ,  Peter Siyuan Zhang ,  Qijun Chen ,  Asjad Shamim

IPC: G06F1/20 ,  G06F1/08 ,  G06F11/30

Abstract: Example implementations relate to modifying clock-boost parameters. In some examples, a controller of a computing device may determine a thermal headroom based on a thermal capacity of the computing device, an energy inflow to a processor received from circuitry of the computing device, a temperature of the processor, and a speed of a fan of the computing device, and modify a clock boost parameter for the processor based on the thermal headroom.

公开(公告)号：US20210263576A1

公开(公告)日：2021-08-26

申请号：US17258808

申请日：2018-11-13

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Monji G. Jabori ,  Qijun Chen ,  Roger D. Benson

IPC: G06F1/26 ,  G06F13/42

Abstract: According to examples, an apparatus may include a power converter and a controller. The controller may intercept a power contract negotiation between a first device and a second device, spoof the first device and the second device with respect to each other, and determine a power contract between the first device and the second device. The controller may also supply power to the first device from an external power source through the power converter according to the power contract while enabling pass-through of a communication signal between the first device and the second device through the apparatus.

公开(公告)号：US20240393858A1

公开(公告)日：2024-11-28

申请号：US18262705

申请日：2021-02-10

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Fangyong Dai ,  Anand Kulkarni ,  Qijun Chen ,  Asjad Shamim

IPC: G06F1/3234 ,  G06F1/26 ,  G06F1/3206

Abstract: In one example in accordance with the present disclosure, an electronic device is described. An example electronic device includes a processor, a port to receive a connector of a peripheral device, and a power supply. An example power supply is to supply power to the processor and the peripheral device when connected to the electronic device. The example electronic device also includes an electronic device controller. The electronic device controller is to alter an amount of power from a first value to a second value to supply to the peripheral device based on an amount of power available from the power supply and a lower threshold power level that enables data communication from the peripheral device. The example electronic device also includes a power delivery controller. The power delivery controller is to provide the amount of power having the second value to the peripheral device based on an output from the electronic device controller.

公开(公告)号：US12147282B2

公开(公告)日：2024-11-19

申请号：US18005183

申请日：2020-08-03

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Fangyong Dai ,  Qijun Chen ,  Ann Alejandro Villegas ,  Ling Wei Chung ,  Daniel Joseph Luc

IPC: G06F1/26

Abstract: In some examples, an electronic device comprises a processor and a power circuit coupled to the processor. The power circuit is to provide power to the processor and to measure a current drawn from the power circuit by the processor. The electronic device also comprises a voltage regulator controller coupled to the processor and the power circuit. The voltage regulator controller is to receive a current usage prediction from the processor, receive the measurement from the power circuit, compare the current usage prediction and the measurement, and, based on the comparison, drive the power circuit in accordance with the measurement instead of the current usage prediction.