Abstract: A system for controlling voltage comprising a transformer having a terminal, a plurality of windings and a plurality of winding taps. A voltage monitor coupled to the terminal of the transformer and configured to generate voltage data representing a voltage appearing at the terminal of the transformer. A non-bridging tap changer controller coupled to the voltage monitor and configured to generate tap changer control data for changing a configuration of a tap changer in response to the voltage data. A tap changer motor coupled to the non-bridging tap changer controller and configured to move the tap changer in response to the tap changer control data.

Abstract: The present invention provides a parallel current-sharing device and control method without a current-sharing bus, for implementing parallel current sharing of direct-current outputs of a plurality of power conversion submodules. The parallel current-sharing device comprises a voltage control module and a plurality of power conversion submodules. The voltage control module and the plurality of power conversion submodules having parallel outputs form an outer voltage loop. The power conversion submodules comprise respective inner current loops and sample respective current feedback signals to generate inner current loop control signals, and the inner current loop control signals are superposed with an outer voltage loop control signal to control output of the power conversion submodules. An independent current bus is not required, and only one unidirectional outer control voltage loop is required.

Abstract: Embodiments of the present invention may provide an integrated circuit with reduced power loss. The integrated circuit may comprise a processing system and a feedback circuit. The processing system may generate a load signal from a variable power supply, which is external to the integrated circuit. The feedback circuit may compare the load signal and a voltage input from the variable power supply, and based on the comparison, generate a feedback signal for adjusting the variable power supply, thereby reducing power loss.

Abstract: A power supply apparatus is provided. The power supply apparatus includes a first power pin, a second power pin, a DC output regulator, a current sensing circuit, and a compensation circuit. The first and second power pins are coupled to an external load through a first wire and a second wire respectively. The DC output regulator receives an input voltage and a feedback voltage and generates an output voltage and an output current. The current sensing circuit senses the output current and generates a sensing voltage. The compensation circuit generates a compensation voltage responding to the sensing voltage. The compensation voltage is a sum of a voltage drop on the first wire and a voltage drop on the second wire. The compensation circuit compensates the output voltage according to the compensation voltage, such that a load voltage of the external load is kept at a stable voltage value.

Abstract: A method of recovering a voltage drop at an output terminal of a voltage compensation circuit connected to a load including a variable load current according to a condition of the load. A circuit portion for a regulator having an output terminal connected to a load including a variable load current may be provided, The circuit portion may include a plurality of stages connected in parallel to said output terminal. Each of said stages may be configured as a current driver having an output connected to the output terminal of said regulator. The circuit portion may include a comparator in each of said stages configured for receiving from a first input a reference voltage value and a predetermined threshold voltage from an other input. Each of said stages may receive a corresponding different threshold voltage value on said other input. The threshold voltage values may be correlated to the variable load current.

Abstract: A voltage regulator includes a feedback regulation loop and a drive transistor configured to source current to a regulated output. A transient recovery circuit is coupled to the voltage regulator circuit and includes a first transistor coupled to source current into a control terminal of the drive transistor, wherein the source current is in addition to current sourced in response to operation of the feedback regulation loop. The first transistor is selectively actuated in response to a drop in voltage at the regulated output. The transient recovery circuit further includes a second transistor coupled to sink current from the regulated output. The sink current has a first non-zero magnitude in the quiescent operating mode of the regulator circuit. In response to an increase in voltage at the regulated output, the operation of the second transistor is modified to increase the sink current to a second, greater, non-zero magnitude.

Abstract: A method keeps a synchronous machine in a stable operating zone during large transient voltage excursions on a power grid to which the machine is connected. The machine's load angle, i.e., the position of the rotor flux with respect to the position of the stator flux, is calculated. If the load angle is not within a defined range of reference values for stable machine operation, the machine's field excitation is adjusted to bring the machine's load angle within the defined range of reference values for stable machine operation.

Abstract: Methods, devices, and systems for energy consumption modeling are described herein. One device includes a memory, and a processor configured to execute executable instructions stored in the memory to assign energy consumption data to an on state and an off state of a device, generate a model configured to predict a future state of the device and a duration of the future state based on a duration of a current state of the device, a duration of a previous state of the device, and operating conditions of the device, and predict a future energy consumption of the device using the assigned energy consumption data and the generated model.

Abstract: Systems and methods are provided for controlling a setback mode of a power-consuming device, and for controlling setback recovery of power-consuming devices, in order to make setback and setback recovery more dynamic based on current environmental parameters and previous observed operating parameters, in order to enable more efficient operation of power-consuming devices resulting in reduced energy costs and increased power efficiency.

Abstract: A power supply for an electronic circuit enables a low effort retention mode. During a normal mode a circuit module is supplied a first voltage sufficient for a controlled circuit to operate. During the low effort retention mode the circuit module is supplied with a second voltage lower than the first voltage. The second voltage is sufficient for flop-flops to retain their state but not sufficient to guarantee proper circuit operation. The second voltage is produced by a voltage drop (droop) from the first voltage. The preferred embodiment includes a System On Chip and one external voltage regulator and an on-chip droop circuit for each circuit module.

Abstract: This invention is an electronic circuit with a low power retention mode. A single integrated circuit includes a circuit module and a droop switch circuit supplied by a voltage regulator. In a normal mode a PMOS source-drain channel connects the voltage regulator power to the circuit module power input or isolates them dependent upon a power switch input. In a low power mode a second PMOS connected between the first PMOS gate and output diode connects the first PMOS. This supplied the circuit module from the voltage regulator power as reduced in voltage by a diode forward bias drop. This lower voltage should be sufficient for flip-flops in the circuit module to retain their state while not guaranteeing logic operation. There may be a plurality of chain connected droop switch each powering a corresponding circuit module.

Abstract: In some embodiments, a circuit includes a first transistor, a second transistor, a resistive device and an amplifier. The first transistor includes a first drain and a first gate. The second transistor includes a second drain and a second gate. The resistive device is coupled between the first gate and the second gate. The amplifier includes a first input coupled to the first drain and a second input coupled to the second drain. The amplifier is configured to keep a voltage level at the first drain and that at the second drain equal to each other.

Abstract: A circuit includes a first PMOS transistor that includes a first PMOS source coupled to a first input node, a first PMOS gate, and a first PMOS drain. A second PMOS transistor includes a second PMOS source coupled to a second input node, a second PMOS gate, and a second PMOS drain coupled to the second PMOS gate. A first resistor coupled between the first PMOS source and a ground node. A first diode element coupled between the first resistor and the ground node and a second diode element coupled between the second PMOS source and the ground node. A third PMOS transistor includes a third PMOS gate, a third PMOS source coupled to a supply node, and a third PMOS drain coupled to the first input node. A fourth PMOS transistor includes a fourth PMOS gate coupled to the third PMOS gate, a fourth PMOS source coupled to the supply node, and a fourth PMOS drain coupled to the second input node.

Abstract: A vehicle pedal comprising a housing for a pedal arm with a drum, a rotor coupled to the drum and including a contractor that slides against a strip of resistive material in the housing, and an assembly for setting and locking the index position of the rotor. In one embodiment, the rotor extends through a window that is defined in the housing and limits the movement of the rotor during the index setting operation. In one embodiment, a plastic pin that is either separate from or unitary with the rotor is fitted into a slot defined in the drum. In another embodiment, a potting material is deposited and cured in the slot in the drum for locking the pin in the slot. In another embodiment, the pin is unitary with the drum of the pedal arm and is press-fitted into a slot in the rotor. In a further embodiment, the drum and rotor include respective plates and the pin is a clip that locks the plates together.

Abstract: A control system includes at least one lever configured to receive an operator input, a bellcrank coupled to the at least one lever and configured to rotate when the operator input exceeds a threshold, a support structure of the bellcrank which movably holds the bellcrank, and at least one magnet which forms a magnetic field which forms a positive detent between the bellcrank and the support structure of the bellcrank.

Abstract: A vibration damping counterbalance unit for an inceptor apparatus having a wall defining a cavity; and a plurality of vibration damping masses housed within the cavity.

Abstract: A Serial Peripheral Interface (SPI) controller is provided for use within a computer system. The SPI controller includes a clock that generates system clock signals that synchronize a data transfer operation, and a dynamic clock delay element that phase shifts the clock signals with a delay offset and outputs read data that was received during a read operation from an SPI slave device with the clock signals that were phase shifted.

Abstract: There is provided an information processing apparatus including a case which is provided with an opening. Two or more functional units are allocated to the opening.

Abstract: Disclosed is a system comprised of a bag and computer combination which allows the bag wearer to quickly access and use a computer while mobile. The system can be in three forms and all three are used in the same way: a pivoting cover is moved out of the way to expose a display which pivots into the line of sight of the wearer/operator. When assembled, all the components are physically connected and electrical components are electrically connected. Additional components include a keyboard or write pad mounted on the pivoting cover or on a separate pivoting mount near the center bag front, a display prop which braces the display in various angular positions and side pockets fitted for peripherals. An example is cited using a bag with flap mounts and equipment which mounts to the flaps using clamps.

Abstract: Disclosed herein is dock for a mobile device. An example of a dock includes an enclosure and an adjustable shelf. The enclosure includes a sloped top surface to support a display of a mobile device at a viewing angle, wherein a slope of the sloped top surface is due to a height of the enclosure being shorter at a front of the enclosure than a back of the enclosure. The shelf adjustable shelf is coupled to a top front edge of the enclosure by a hinge, wherein the adjustable shelf is to receive the mobile device, and the adjustable shelf rests flat against the sloped top surface to support the display at a default viewing angle, and the adjustable shelf is pivotable around the hinge to adjust the viewing angle.

Abstract: A user terminal apparatus includes a flexible display configured to be divided into a first region and a second region in response to the user terminal apparatus being bent, a bending detector configured to detect a bending state of the user terminal apparatus, a sensor configured to detect a use environment of the user terminal apparatus, and a controller configured to detect the use environment of the user terminal apparatus through the sensor in response to bending of the user terminal apparatus being detected through the bending detector, and determine whether to perform a function corresponding to the bending of the user terminal apparatus according to the detected use environment.

Abstract: An electronic device is provided. The electronic device includes a body including a plurality of segment members connected to each other to be rotatable, the body being configured to switch to a flat state or a bent state by rotations of the plurality of segment members, a flexible display device supported by the body, a return spring configured to maintain the body in the bent state with an elastic force so that the body returns to the flat state, and a locking unit configured to lock the body at various bent states with different curvatures.

Abstract: An apparatus is provided. The apparatus includes a case forming at least one portion of a surface of the apparatus, the at least one portion of the surface including a first metal portion, a second metal portion, and a non-metal portion disposed between the first and second metal portions; and a touchscreen display at least partially housed in the case.

Abstract: Examples disclosed herein provide a protective cover for a portable computing device. The protective cover can include a case for enclosing a back surface and sidewalls of the device. The case can include an opening for exposing a portion of the device comprising a portion of a first sidewall and a portion of the back surface adjacent to the first sidewall.

Abstract: An electronic device including a lower body, an upper body, a rotating assembly, a sliding assembly and a stopping assembly is provided. The upper body is disposed above the lower body. The rotating assembly is disposed between the upper body and the lower body, so that the upper body is pivotally disposed on the lower body. The sliding assembly is disposed between the rotating assembly and the lower body, so that the rotating assembly is slidably disposed on the lower body. The stopping assembly is disposed on the lower body, so as to fix the sliding assembly when the upper body rotates relative to the lower body through the rotating assembly and release the sliding assembly until the upper body rotates to a predetermined angle, thereafter the upper body and the rotating assembly are adapted to slide relative to the lower body through the sliding assembly.

Abstract: The description relates to devices, such as computing devices that have hinged portions. One example can include a first portion and a second portion. This example can also include a sequential multi-pivot hinge assembly rotatably securing the first portion and the second portion. The sequential multi-pivot hinge assembly can include rotation control elements configured to control a relative order of rotation around axes of rotation of the sequential multi-pivot hinge assembly.

Abstract: A head-mounted display is worn on the head of the user, and allows the user to observe a display image, the head-mounted display including a display section that displays the display image, and a control section that performs a control process that controls the timing at which the display image is displayed on the display section. The control section performs the control process that causes a display period and a non-display period to repeat alternately, and sets one display period to be equal to or less than 600 ms, the display period being a period in which the display image is displayed on the display section, and the non-display period being a period in which the display image is not displayed on the display section.

Abstract: A hard drive tray device applied in a server is provided. The server includes a housing. The hard drive tray device includes a rail member and a tray. The rail member is disposed at the inner wall of the housing. The tray is slidably engaged with the rail member so as to slide between an expanded position and a closed position relative to the housing. The tray includes a base for carrying two storage devices. The base has a hollow portion. The storage devices are respectively located at two sides of the hollow portion. When the tray slides to the expanded position, one of the storage devices and at least a part of the hollow portion are located outside the housing.

Abstract: A system is provided herein. The system includes a support member and a latch mechanism. The support member includes a positioning member. The latch mechanism is connected to the support member. The latch mechanism includes a handle and a retention latch. The handle is formed to rotate about an axis. Rotation of the handle to shift engagement of the handle with the positioning member between an engaged position and an unengaged position. The retention latch to engage with a chassis and secure the support member therein. The retention latch connects to the handle. In the engaged position, the handle to connect to the positioning member and the retention latch to engage with the chassis. In the unengaged position, the handle and the positioning member to disconnect and the handle to displace the retention latch to release engagement of the retention latch with the chassis.

Abstract: An opening at a first carbon fiber sheet is provided, the opening extending through the sheet from a first major surface to a second major surface, the opening defining two sides and a first end of a rectangular flap, a second end of the flap remaining rooted in the first carbon fiber sheet. A piezoelectric transducer is bonded to the first carbon fiber sheet, the transducer proximate to the second end of the flap. A controller including a signal generator is coupled to the piezoelectric transducer, the piezoelectric transducer to excite sympathetic vibration of the flap.

Abstract: The disclosed embodiments provide a component for a portable electronic device. The component includes a gasket containing a rigid portion disposed around a bottom of a heat pipe, wherein the rigid portion forms a duct between a fan and an exhaust vent of the electronic device. The gasket also includes a first flexible portion bonded to the rigid portion, wherein the first flexible portion comprises a flap that is open during assembly of the heat pipe in the electronic device and closed over the heat pipe and the rigid portion to seal the duct around the heat pipe after the assembly.

Abstract: Systems and methods are disclosed for determining a current machine state of a processing device, predicting a future processing task to be performed by the processing device at a future time, and predicting a list of intervening processing tasks to be performed by a first time (e.g. a current time) and the start of the future processing task. The future processing task has an associated initial state. A feed-forward thermal prediction model determines a predicted future machine state at the time for starting the future processing task. Heat mitigation processes can be applied in advance of the starting of the future processing task, to meet the future initial machine state for starting the future processing task.

Abstract: A thermal management assembly in accordance with one example may include a first thermal management member that includes a first main region that is continuous, a first connection region that is discontinuous, and a first top side. The thermal management assembly may also include a second thermal management member that includes a second main region, a second connection region, and a second top side. The second main region and the second connection region are continuous. The thermal management assembly may further include a connection member to couple the first thermal management member and the second thermal management member to a memory device via the first connection region and the second connection region. The first top side and the second top side are substantially level with a top side of the memory device in a horizontal direction when the first thermal management member and the second thermal management member are coupled to the memory device.

Abstract: A voltage regulator may be tuned to reduce consumption of electrical power. An installed configuration of a dual inline memory module is used to load test the voltage regulator. Results of the load test may then reveal tuning parameters that make the voltage regulator more efficient.

Abstract: In a world filled with disparate, computationally-potent, communication handhelds, any group of individual operators who need to coordinate their use of fixed or moveable equipment can use a sensor and power coordinator device, fixably mounted on each separate piece of equipment (or vehicle) and capable of supporting a varying bag of such handhelds, if such sensor and power coordinator provisions power and coordinates the metrics, authorization, and operation to enable sharing of vehicle-and-device-and-handheld-and-operator-specific data, thereby enabling aggregate operations by providing the collective operational stability while accommodating operator and handheld variation.

Abstract: Connect an MP3 player, using the long end of a USB cable, to an EReader plugged into an electrical socket to enjoy sound while reading.

Abstract: An electronic control unit includes a microcomputer, a power supply IC and a peripheral circuit part. The microcomputer includes a core operable with a first power supply voltage and an input/output circuit operable with a second power supply voltage higher than the first power supply voltage. The power supply IC generates the first power supply voltage and the second power supply voltage. The peripheral circuit part has a first input terminal for the first power supply voltage, a second input terminal for the second power supply voltage, and an internal circuit operable with a potential between the first power supply voltage and the second power supply voltage. A core input terminal for the first power supply voltage, a first output terminal for the first power supply voltage in the power supply IC and the first input terminal are electrically connected one another.

Abstract: Implementations of energy harvester systems may include: an accumulator having an air bladder separated from water by a membrane; one or more hydro turbines coupled with the accumulator; two or more check valves each coupled with one of the one or more hydro turbines; a system battery coupled to the power conditioner; and an electronic load coupled to the system batter through the power conditioner; wherein the two or more check valves are configured to be in contact with water.

Abstract: A controller is formed as one chip, and controls a voltage regulator that supplies a power supply voltage to a CPU. The controller includes: an input unit for receiving a monitor voltage for monitoring the power supply voltage applied to the CPU; a control unit for detecting that the power supply voltage is decreased to a target voltage by the monitor voltage with the voltage regulator being in OFF state in a discharge mode; and an output unit for outputting a result signal indicating to make transition to a normal mode, when the power supply voltage has reached the target voltage. The control unit includes a calculation circuit, which is operated in accordance with a program. The calculation circuit is provided between the input unit and the output unit.

Abstract: A device has a body having a processing component and an orientation detecting component, and a cover disposed on the body. The processing component can operate in an inactive mode and can operate in an active mode, wherein the inactive mode expends less power than the active mode. The orientation detecting component can detect a first orientation and can generate an orientation signal based on the detected first orientation. The processing component can operate in one of the inactive mode or the active mode based on the orientation signal.

Abstract: One or more system, apparatus, method, and computer readable media is described below for power management of one or more graphics processor resources. In some embodiments, a graphics processor context associated with an application an including power-related hardware configuration and control parameters is stored to memory. In some embodiments, graphics processor contexts are switched in and out as different application workloads are processed by resources of the graphics processor. In some embodiments, power-performance management algorithms are grouped and sequentially executed in ordered phases of a control loop to generate a compatible set of control parameter requests. Once finalized, the set is output as requests to graphics processor hardware and/or updates to stored graphics processor contexts.

Abstract: A system for performing dynamic frequency scaling may include a voltage regulator and a decision block. The decision block may be configured to determine a target frequency of operations for a system on chip.

Abstract: The embodiments set forth a technique for providing reactive performance throttle engagement information to controller limiters, which are implemented as closed loop structures that analyze the information against target reactive performance throttle engagement rates and produce control effort limits. When reactive performance throttle engagement rates are below the target, controllers issue control efforts in a normal fashion such that they are not influenced by the control effort limits produced by the controller limiters. However, the controller limiters are also configured such that when reactive performance throttle engagement rates are above the target, the controllers issue control efforts in a modified fashion—specifically, in accordance with the control effort limits produced by the controller limiters. In this manner, control effort limits can effectively clamp the control efforts when particular conditions—such as excessive reactive performance throttle engagement rates—are being met.

Abstract: A method includes identifying a plurality of power supplies connected for supplying power to a computer system, wherein the plurality of power supplies includes at least one redundant power supply in a standby mode. For each of the plurality of power supplies identified, the method determines a length of a power supply cable connected between the power supply and a power distribution unit for supplying power to the power supply. The method further includes placing one or more of the plurality of power supplies in an active mode in ascending order of the length of the cable connected to the power supply, and supplying power to the computer system using the one or more of the plurality of power supplies in the active mode.

Abstract: A mobile system includes a SOC and PMIC. The SOC includes a first signal processing circuit and a second signal processing circuit, and generates a dynamic voltage scaling (DVS) control signal based on operating states of the first signal processing circuit and the second signal processing circuit. The PMIC generates a supply voltage whose magnitude is controlled in response to the DVS control signal, and provides the supply voltage to the first signal processing circuit and the second signal processing circuit through a single power rail.

Abstract: A method of reducing power consumption of a buffer for cache in a tape drive connected to a host in a communicable manner, according to one embodiment, includes detecting a transfer rate of data from the host or to the host, and determining a writing or reading rate of data to or from a tape based on the data transfer rate. A determination is made as to whether predetermined conditions including the data transfer rate, the data writing or reading rate, and a capacity of a buffer are satisfied, where the buffer includes at least two buffer areas. At least one of the buffer areas is selected when the predetermined conditions are satisfied. The selected buffer area is switched to a power saving mode.

Abstract: A method for reducing power utilized by a processor including the steps of determining that a processor is transitioning from a computing mode to a mode is which system clock to the processor is disabled, and reducing core voltage to the processor to a value sufficient to maintain state during the mode in which system clock is disabled.

Abstract: Described herein in various embodiments are techniques to better coordinate long wakeup events on a network processor that are due to radio or network activity with the long wakeups that are due to requests from an application processor. In one embodiment, power management logic can receive wake requests from system processes upon notice that one or more application processors are transitioning into a low power state. The power management logic can coalesce the wake requests based on a supplied margin and determine a wake timeframe in which the application processor may be opportunistically woken from the low power state. The power management logic can provide the wake timeframe for the application processor to a network processor in the system. The network processor can opportunistically cause an early wake of the application processor during the wake timeframe.

Abstract: There is provided a handheld controller for a virtual reality system. The hand-held controller includes a user-input surface and a grip coupled to the user-input surface. The user-input surface has a first user-input key. The hand-held controller further includes a cage coupled to the user-input surface. The cage includes a plurality of illumination sources on an outer surface of the cage, which provide light to be detected by a camera for sensing a position of the controller based on a user motion.

Abstract: A wearable device is provided. The wearable device includes a body comprising a device mounting portion for receiving a first electronic device, a strap extended with a specific length from the body to fix the body to a person at a proper position, a battery disposed in a portion of at least one of the body and the strap, a first electronic device configured to selectively attach to the device mounting portion, wherein, when the first electronic device is attached to the device mounting portion, the first electronic device selectively receives power from the battery.