Hewlett-packard Development Company, L.p.

Current Technology, Inc.

Qijun Chen

Thomas P Sawyers

Rahul V Lakdawala

Fangyong Dai

Monji G Jabori

Asjad Shamim

Earl W Moore

Ronald E Deluga

Ann Alejandro Villegas

Raghotham Reddy Nathadi

Donald G Scharnberg

Thomas F Crissler

Asif Y Jakwani

Fyodor M Shterenberg

Paul A Jeffries

Anand Kulkarni

Ling Wei Chung

Anura Neysadurai

Gabriel Hector Valencia

Daniel Joseph Luc

Po Yu Li

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.

Peripheral device power

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.

Controllers to drive power circuits based on currents drawn

In some examples, an electronic device includes a display panel, voltage circuitry to provide a voltage output to the display panel, and a controller. In some examples, the controller sets the voltage output of the voltage circuitry to a first voltage. In some examples, the controller obtains a first display panel power measurement at the voltage output. In some examples, the controller compares the first display panel power measurement with a second display panel power measurement. In some examples, the controller changes the voltage output to a second voltage based on the comparison.

Voltage adjustments for display panels

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.

Power control with detection of overcurrent events

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.

Disconnecting a battery from a system

Apparatus and methods are provided for use with computers. A power supply includes metering to determine the instantaneous and cumulative energy consumption of the power supply and a computer coupled thereto. Communications enable the power supply to communicate corresponding power data to the computer. A user of the computer can then view the power data and assess the effectiveness of energy conservation efforts.

Computer system with power measurement

A configuration method for a computer device comprises generating a load condition on at least one serial bus link using a plurality of differential voltage levels, determining a minimum voltage differential value for producing an eye compliance diagram at a receiver of the at least one serial bus link, and configuring a driver associated with the at least one serial bus link to drive an operational differential voltage level on the at least one serial bus link within a predetermined range of the minimum voltage differential.

Computer device configuration system and method

A battery pack charging system comprises a charger configured to be removably coupled to at least two different battery packs each having a different regulation charge voltage associated therewith, and a charger controller configured to cause the charger to charge the at least two different battery packs to the respective regulation charge voltages based on a signal received from each of the respective battery packs.

Battery pack charging system and method

An electronic device connector system, comprising a connector member having a plurality of spaced-apart conductive inserts, at least one of the plurality of spaced-apart inserts comprising a plurality of separate conductor portions.

Electronic device connector system

Disclosed are a sensor for detecting when an infrastructure interface is physically coupled to network infrastructure, and infrastructure connection detection circuitry coupled to the sensor. The infrastructure connection detection circuitry provides a power management control signal as a function of a signal from the sensor.

System and method for network interface power management

A system comprises a first graphics controller adapted to couple to a first display, a second graphics controller adapted to couple to a second display, and a switch through which at least one of communications and power is provided to the second graphics controller. The system also comprises control logic coupled to the switch. The control logic causes the switch to preclude at least one of communications and power from being provided to the second graphics controller if the second display is not operatively coupled to the system.

System and method of controlling a graphics controller

A dynamic lane management system comprises at least one downstream device of a computer system configured to dynamically initiate a lane width re-negotiation operation with at least one upstream device of the computer system in response to a detection of at least one power-related event associated with the computer system.

Dynamic lane management system and method

An apparatus for providing independent over-current protection to a plurality of electrical devices and a transient-voltage suppression system employing the apparatus. In one embodiment, the apparatus includes a non-conductive body having a plurality of bores extending through the body from a first portion to a second portion of the body, a plurality of fusible elements corresponding to and disposed within the plurality of bores, each of the fusible elements having a first terminal proximate to the first portion of the body and a second terminal proximate to the second portion, and a common electrode coupled to the first terminal of each of the plurality of fusible elements. The common electrode is couplable to a source of electrical power and the second terminals of each of the plurality of fusible elements are couplable to an electrical device, such as a metal oxide varistor in a transient-voltage suppression system. Each of the fusible elements are operative to open-circuit when an electrical device coupled thereto causes an electrical current to flow through the fusible element in excess of a current rating of the fusible element.

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Spring, TX, United States of America

Qijun Chen