Abstract: One aspect of the disclosure provides a computer system. In one embodiment, the computer system comprises a clock generator, at least one processor, and a clock frequency controller. The clock generator is configured to provide a clock signal at a clock frequency. The at least one processor is configured to receive the clock signal and to operate at a speed dependent on the clock frequency. The clock frequency controller is configured to receive efficiency information indicating a current efficiency of the at least one processor. The clock frequency controller is further configured to receive a request from the processor for a target number of processor instructions to be handled in a particular time period. The clock frequency controller is further configured to output a frequency control signal to the clock generator for controlling the clock frequency in dependence thereon.

Abstract: A method of backing up data from an electronic system is disclosed. The method may include detecting an operating mode of the battery subsystem that is a maintenance discharge cycle operating mode and in response, calculating, using a first algorithm, the available battery capacity relative to a minimum battery capacity. The method may also include detecting an operating mode of the battery subsystem that is a normal operating mode and in response, calculating, using a second algorithm, the available battery capacity relative to a maximum battery capacity. The method may also include comparing the available battery capacity to a battery capacity sufficient to complete a backup operation, detecting a backup trigger condition and in response to the backup trigger condition and the available battery capacity being sufficient to complete a backup operation, backing up, data from the electronic system.

Abstract: Power supply of ECUs connected to a communication network is optimally controlled so that power consumption is reduced. A transceiver/receiver converts a message of a differential signal received via a CAN bus into a digital signal. A select circuit determines whether the converted message is in a CAN format or a UART format. If it is in the UART format, the select circuit outputs a message to the UART circuit. A UART circuit determines whether the message matches a UART format. If matched, an ID determination circuit determines whether the input message is specifying a CAN ID of its own ECU. If it is the CAN ID of the ECU, the ID determination circuit outputs an enable signal to turn on a regulator and supply power to an MCU and an actuator.

Abstract: A method and apparatus for memory power and/or area reduction. An array of memory cells may be scanned to detect faulty memory cells, if any, in the array. A supply voltage Vmem applied to the array of memory cells may be controlled based on a result of the scan, and based on a sensitivity coefficient of one, or more, of the array of memory cells. The sensitivity coefficient may indicate an impact that the one, or more, of the array of memory cells being faulty may have on the performance of a device that reads and writes data to the memory array. Additionally or alternatively, the physical dimensions of the memory cells may be determined based on the sensitivity coefficient(s) and/or based on a number of faulty memory cells that can be tolerated in the array of memory cells.

Abstract: An information handling system includes a communication device and a service processor. The communication device includes a first terminal, and a second terminal to communicate with a network storage array. The service processor includes a first terminal to receive persistence policy for the communication device. The service processor is configured to detect a reset of the information handling system, to determine a type of reset performed in an information handling system, to evaluate the persistence policy with respect to the type of reset during a power-on self test executed in the information handling system after the information handling system, and to configure, via the first terminal of the communication device, the attributes of the communication device based on the persistence policy and the type of reset.

Abstract: One or more dual-role Power-over-Ethernet (PoE) port units are each selectively configurable to operate as either (i) a PoE Power Source Equipment (PSE) port unit to provide power to a device connected to the PoE port unit, or (ii) a PoE Powered Device (PD) port unit to sink power from the connected device. Each PoE port unit includes a network port, and a bi-directional power converter to selectively convert power in either (i) a first direction and to provide converted power to the network port when the PoE port unit operates as the PSE port unit, or (ii) in a second direction to convert power received from the network port when the PoE port unit operates as the PD port unit.

Abstract: A method for controlling a wireless power transmitter that transmits charging power to a wireless power receiver is provided. The method includes driving the wireless power transmitter; determining whether latch fault mode entry conditions are met, in which the wireless power transmitter is allowed to enter a latch fault mode in which the wireless power transmitter periodically applies first power having a first power value in a first cycle; and if the latch fault mode entry conditions are met, periodically applying the first power in the first cycle.

Abstract: A constantly power-ON domain and a standby-time power OFF domain are included on the same chip, and the constantly power-ON domain includes: a shutoff control circuit shutting off a signal inputted and outputted between the constantly power-ON domain and the standby-time power OFF domain when the first power source is ON and the second power source is OFF; and a shutoff control circuit outputting a first control signal indicating that shutoff of an emergent shutoff control circuit unit is to be enabled or disabled, the standby-time power OFF domain includes the emergent shutoff control circuit unit shutting off, based on the first control signal from the shutoff control circuit, the signal inputted between the emergent shutoff control circuit unit and the constantly power-ON domain.

Abstract: A data processing device includes a plurality of central processing unit (CPU) cores; a plurality of first switches connected between a power line and each of the plurality of CPU cores, respectively; a power management unit; and a dynamic voltage/frequency scaling control circuit configured to scale at least one of a voltage and a frequency of a clock signal which are supplied to each of the CPU cores according to a control of the power management unit, wherein the power management unit is configured to decrease at least one of the voltage and the frequency which are supplied to each of the CPU cores and generate each of first control signals controlling a switching operation of each of the plurality of first switches, according to a control of one of the CPU cores.

Abstract: A backup method for a computer system includes a backup module, a storage device, a south bridge circuit and a serial-advanced-technology-attachment to universal-serial-bus (SATA-to-USB) transmission line. The backup method includes when the computer system is operated in a turned off status, determining whether the backup module is coupled to a stable voltage source; when the backup module is coupled to the stable voltage source, determining a voltage level of a detection point; and when the voltage level of the detection point is a low level, initiating a backup operation of the backup module to read a plurality of data in the storage device via the SATA-to-USB transmission line.

Abstract: A set of two or more modular-critical-power-distribution skids are arranged in a redundant power center configuration to supply power to electrical loads in a modular data center facility. The skids are housed in hardened buildings. The uninterruptable power supply is electrically and mechanically connected into the multiple power distribution cabinets, all of which are mounted onto a steel framed support structure, which supports a weight of those uninterruptable power supplies and power distribution cabinets. The environmental control system controls a cooling system for the modular-critical-power-distribution skids. Electrical power from the A-side and B-side connects in a redundant power configuration to electrical loads in the cooling system.

Abstract: An electrical power system for a nuclear power facility includes an active alternating current (AC) power bus configured to be electrically coupled to a plurality of engineered safety feature (ESF) loads of a plurality of nuclear power systems, each of the ESF loads configured to fail to a safe position upon loss of primary AC power; a critical battery system electrically coupled to the active AC bus, the critical battery system comprising a plurality of valve regulated lead acid (VRLA) batteries; and a primary AC power source electrically coupled to the active AC bus.

Abstract: A storage control system and method of operation thereof includes: a control unit for initiating a hardening process beginning at a power-down signal; a counter module, coupled to the control unit for tracking a recorded time beginning at the power-down signal; a completion module, coupled to the counter module, for generating a work-complete entry in memory devices at a conclusion of the hardening process; and a calculation module, coupled to the completion module, for calculating a power down margin by determining the recorded time between the work-complete entry and a complete power loss of a hold-up power.

Abstract: An uninterruptible power system and a power control system thereof are disclosed. The power control system includes the uninterruptible power system and a computer system. The uninterruptible power system supplies power to the computer system and includes an external power adaptor, a battery module, a first switch module, a second switch module, and a switching control module. When external power is input, the external power is transmitted to the computer system via the external power adaptor. When the external power is not input, the first switch module switches automatically to supply a backup power signal from the battery module to the computer system. When the external power is not input and a control signal is not received from the computer system, the switching control module controls the second switch module to electrically disconnect a connection between the computer system and the battery module.

Abstract: An approach is provided for providing a low-power browsing experience on a mobile device. A proxy platform receives a request for a webpage. The proxy platform also receives information about the mobile device. The proxy platform processes and/or facilitates a processing of the information about the mobile device and sends the webpage to the mobile device in a format that is based on the information about the mobile device. The mobile device may then operate in a low-power mode when browsing the requested website.

Abstract: An breathing or anesthesia apparatus and a process for operating a breathing or anesthesia apparatus are provided in which only a very low energy consumption occurs outside of the operating times. The breathing or anesthesia apparatus (1) is put into an energy-saving mode and a function pretest is performed before putting the apparatus into the energy-saving mode. A function self-test is carried out when the breathing or anesthesia apparatus is put into a standby mode.

Abstract: A Decision Feedback Equalizer (‘DFE’) that includes: a plurality of input signal lines comprising at least one data signal line and a plurality of power control signal lines; at least one output signal line; and a plurality of independently-controlled isolated power domains, where each independently-controlled isolated power domain is coupled to a corresponding one of the power control signal lines, each of the power control signal lines configured to transmit a power control signal to the independently-controlled isolated power domain dynamically, and each independently-controlled isolated power domain selectively consumes power in response to the power control signal, each independently-controlled isolated power domain configured to be dynamically powered up or powered down without impacting signal processing operations.

Abstract: Devices and methods for a communication device having at least one power supply unit coupled to a power connector for providing an operating power for operation of network modules of the communication device and a PoE power for the ports connected to Power over Ethernet (PoE) devices. The PoE power includes a consumable power to power up at least one PoE devices and a leftover power. Further, a PoE power harvester adapter is coupled to a power connector to convert the leftover PoE power into additional operating power for operating additional network modules.

Abstract: A system and method of power distribution and backup is provided. The power backup system includes a first uninterruptible power supply and a second uninterruptible power supply configured to drive a load in parallel. The first uninterruptible power supply and the second uninterruptible power supply are both connected through a direct connection to at least two power sources.

Abstract: An arrangement for uninterruptible power supply with a rectifier, an energy store, an inverter with an input, a switch and a controller. The rectifier is connected to a rectifier input to a supply grid (AC 1), the energy store is connected to a rectifier output and to an inverter input. A network (AC 3) to be protected is connected to an inverter output of the inverter. The rectifier input or a supply grid (AC2) is connected via the switch to the inverter output, wherein the rectifier, the inverter and the switch are controlled by the controller, wherein the arrangement includes sensors for measuring voltages and/or currents. Each sensor is connected via a sensor output to exactly one controller and each sensor is configured to convert a parameter to be measured into a low-voltage signal.

Abstract: The invention relates to an arrangement for an uninterruptible power supply with a rectifier, an energy store, an inverter, a switching means and a controller. The rectifier is connected to a rectifier input to a supply grid (AC1). The energy store is connected to a rectifier output of the rectifier (1) and to an inverter input of the inverter. A network (AC3) to be protected or a load to be protected is connected to an inverter output of the inverter, wherein the rectifier input or a supply grid (AC2) is connected via the switching means to the inverter output, and wherein the rectifier, the inverter and the switching means is controlled by the controller, wherein the controller has two control parts which are constructed with redundancy, and wherein the rectifier and the switching means or the inverter and the switching means can be controlled simultaneously by the control parts.

Abstract: The various implementations described herein include systems, methods and/or devices used to enable power failure tolerant cryptographic erasure in a storage device having a first encryption key established as a current encryption key. The method includes performing a set of first stage operations including selecting first and second sets of memory blocks and obtaining a second encryption key. The method includes performing a set of second stage operations including storing, in the first set of memory blocks, first and second sets of metadata, encrypted using the second encryption key. The method includes performing a set of third stage operations, including storing, in the second set of memory blocks, the second set of metadata encrypted using the second encryption key. The method includes setting the second encryption key as the current encryption key for the plurality of memory blocks.

Abstract: A data bus can supply power from a first power source to a sink device. The data bus is coupled to a second power source. An electrical current from the second power source supplements an electrical current on the data bus if the voltage on the data bus decreases to less than a threshold value.

Abstract: A method for use in monitoring a utility network includes identifying, via a computing device, at least one contingent performance violation associated with a first element of a plurality of transmission elements of a utility network. The method includes presenting by the computing device a risk indicator corresponding to the contingent performance violation around a graphical representation of the first element.

Abstract: An assembly includes a plurality of power supply units for producing an output-side operating voltage from at least one input-side supply voltage and at least one power-consuming component which is electrically coupled to the plurality of power supply units. The assembly has a controller arranged to monitor the function of the plurality of power supply units and to switch the power-consuming from a normal operating mode into a restricted operating mode, whose power consumption is lower than that of the first operating mode, when at least one power supply unit fails or to activate a previously deactivated power supply unit.

Abstract: A computer system includes at least two power supply units providing an output-side operating voltage from at least one input-side supply voltage, at least one power-consuming component operated in at least one normal operating mode with a first power consumption and operated in a restricted operating mode with at least one second power consumption lower than the first power consumption, the power-consuming component electrically coupled to the at least two power supply units; a controller coupled to the at least two power supply units and the power-consuming component; and at least one management component coupled to the controller.

Abstract: A memory unit including a first data transferring/receiving unit suitable for transferring/receiving data through a first data bus for communication with a host, a second data transferring/receiving unit suitable for transferring/receiving data through a second data bus for a data backup, and a control unit suitable for controlling the first data transferring/receiving unit and the second data transferring/receiving unit to be activated or inactivated according to whether a power failure occurs in the host.

Abstract: An electrically operated installation and method has a plurality of electrical loads, in which the event of a failure of a basic supply voltage the electrical loads are supplied by a backup voltage, wherein a power supply unit exchanges data with several loads via a field bus, the loads each have a software module for communication via the field bus, a software module of a load is configured as a master and the software modules of the other loads are configured as slaves, the power supply unit as a communication partner of the master controls a regulated shutdown procedure of the loads, in the event of a failure of the basic supply voltage the power supply unit reports this to the master via the field bus, and the master and the software modules of the loads perform the shutdown procedure in configurable synchronization stages.

Abstract: The various implementations described herein include systems, methods and/or devices used to enable power sequencing and data hardening in a storage device. In one aspect, a method includes, in response to a first signal received by the storage device, performing a soft power fail operation on a first section of the storage device. The soft power fail operation including: (1) signaling a power fail condition to a first plurality of controllers on the storage device, where the first plurality of controllers correspond to the first section of the storage device, (2) transferring data held in volatile memory of the storage device to non-volatile memory of the storage device, and (3) removing power from the first plurality of controllers.

Abstract: A power delivery system includes a power supply unit, a secondary power unit, a controller, and a monitor. The power supply unit is configured to receive primary power and provide operating DC power to a DC load. The secondary power unit is configured to store energy from the primary power. The controller is configured to control the secondary power unit during a testing period such that the secondary power unit uses the stored energy to provide secondary DC power to the load instead of the operating DC power. The monitor is configured to monitor the operation of the secondary power unit during the testing period and provide a signal indicative of whether the secondary power unit operated within defined parameters during the testing period.

Abstract: A load control system includes: a power supply control unit for controlling a power feeding to multiple load devices; and a backup power supply unit for supplying backup power during a power failure. During a power failure, the power supply control unit supplies the power from the backup power supply unit only to a part of load devices selected among the load devices, and the load devices are devoid of communications function for communicating with the power supply control unit.

Abstract: A memory device is provided comprising: a volatile memory device, a non-volatile memory device, a memory control circuit volatile memory controller coupled to the volatile memory device and non-volatile memory device, and a backup power source. The backup power source may be arranged to temporarily power the volatile memory devices and the memory control circuit upon a loss of power from the external power source. Additionally, a switch may serve to selectively couple: (a) a host memory bus to either the volatile memory device or non-volatile memory device; and (b) the volatile memory device to the non-volatile memory device. Upon reestablishment of power by an external power source from a power loss event, the memory control circuit is configured to restore data from the non-volatile memory device to the volatile memory device prior to a host system, to which the memory device is coupled, completes boot-up.

Abstract: A method for the equal distribution of electric subnetworks among independent generators regardless of the number and availability of the generators in order to ensure power supply to all the subnetworks.

Abstract: A system for providing protection to a processor system from the problems associated with power failures in the middle of processor operations is described. On detection of a power failure in the main power source, the processor power is maintained by means of a short-term secondary power source. Either immediately or after a momentary pause to override glitches, if power remains off the processor is notified that power will soon be removed and that an orderly shutdown is to take place. Once the protected system has completed its orderly shutdown, or after a length of time indicating that the orderly shutdown is improbable, power is removed from the system for a defined period and the system removes power from the protected processor system for at least a defined period of time, providing an assured hard restart. When external power is restored a normal running state is resumed after any power up sequencing. The orderly shutdown and hard reset can take place by command from the protected processor or system.

Abstract: The present invention relates to a centralized and networked protection system and method of regional distribution network, and belongs to the field of electrical system automation and relay protection.

Abstract: An information processing device connected to a power unit includes: a memory; and a processor coupled to the memory and configured to execute a process. The process includes: obtaining information indicating a running state of a virtual machine mounted in the information processing device upon receipt of a notification that a power failure has occurred, and to store the obtained information in the memory; stopping a currently running virtual machine upon receipt of the notification that the power failure has occurred, and to thereafter stop a power supply to hardware within the information processing device; and activating the virtual machine on the basis of information stored in the memory when the power supply to the information processing device is started.

Abstract: Embodiments of the present invention provide backup and restoration functions for a storage device of a PCI-Express (PCI-e) type that support a low-speed data processing speed for a host. Specifically, embodiments of this invention provide backup and restoration functions for one or more (i.e., a set of) semiconductor storage devices (SSDs). In general, the present invention provides an alarm unit and a secondary power supply coupled to a backup controller. The backup controller is coupled to a backup storage device. When a primary power supply is deactivated (e.g., fails), an alarm unit and the secondary power supply is activated. In response to this activation, the backup controller will backup any data stored on any SSDs of the storage system (as well as any data stored in main memory of the storage system or in main memory of any host server connected thereto).

Abstract: A circuit for displaying failure information of a power supply unit supplying power to a central processing unit includes a controller including a random access memory (RAM) to store failure information of the power supply unit, a DC power circuit, a processing unit connected to the controller for reading the fault reasons stored in the RAM, and a display unit to display the fault reasons. When the power supply unit does not operate, the DC power circuit supplies power to the controller, such that fault reasons stored in the RAM will not be lost.

Abstract: Approaches for an emergency power off (EPO) power island, for saving critical data to non-volatile memory in the event of an EPO condition, for use in a hard-disk drive (HDD) storage device. The EPO power island includes a controller for detecting an EPO condition. A voltage regulator supplies power from spindle motor back EMF only to the EPO power island and to the non-volatile memory. Thus, the remainder of the hard drive controller (HDC) is isolated from the EPO power island so that it will not corrupt the data as the HDC's power supply is decaying. Using the power provided by the voltage regulator, the EPO power island transfers critical data from a memory internal to the island to a non-volatile memory external to the island, such as to a flash memory chip.

Abstract: A power server system includes a power transmission interface, a power supply and a battery backup unit (BBU). The power supply converts an AC power into a DC power and outputs the DC power to the power transmission interface. After the AC power is disconnected, the power supply continues outputting the DC power in a holding period having a rising period and a current sharing period. The BBU outputs a redundant power to the power transmission interface before the power supply stops outputting the DC power. The BBU boosts the voltage level of the redundant power in the rising period, and controls the voltage level of the redundant power to be the same with that of the DC power in the current sharing period, so that the battery output inrush current is reduced and the battery life is extended.

Abstract: Methods and apparatus are provided for geospatial optimization for resilient power management equipment. A method includes predicting a power outage duration based on at least one of geographical data, location data, and historical data. The method further includes rendering a power management decision based on the predicted power outage duration and a remaining backup power duration.

Abstract: A user device is provided. The device includes a main power supply, and an auxiliary power supply. The main power supply provides a main power. The auxiliary power supply cuts off the main power according to a power level of the main power supply and provides an auxiliary power upon Sudden Power-Off (SPO).

Abstract: A method for operating an electronic device that is supplied with electric power by a continuous energy accumulator. A predetermined ending of the first program is monitored in a program step by a second program. If the first program is not switched off as predetermined, the second program generates an error message which is displayed immediately when the device is switched on again.

Abstract: A data center may use generators for backup power, where the backup generators are able to serve less than the maximal power load of the data center. The use of generators that can serve less than the maximal power load may be recognized by, and addressed by, the power policy for the data center. When utility power is lost, the power policy manager may detect that the data center is switching to generator power, and may have knowledge of the capacity of those generators. If the capacity is less than the maximal power load of the data center, the power policy manager may shed load by throttling equipment in the data center to lower power levels. The policy may specify which pieces of equipment are to be throttled. When utility power is restored, the throttling of the equipment may be removed by the power policy manager.

Abstract: Efficient power management of a system with virtual machines is disclosed. In particular, such efficient power management may enable coordination of system-wide power changes with virtual machines. Additionally, such efficient power management may enable coherent power changes in a system with a virtual machine monitor. Furthermore, such efficient power management may enable dynamic control and communication of power state changes.

Abstract: Various embodiments disclosed herein provide protection to monitored equipment at both a local level and a system level, in order to offer more comprehensive protection. In one particular embodiment, the protected equipment may include one or more generators. The protection system may utilize time-synchronized data in order to analyze data provided by systems having disparate sampling rates, that are monitored by different equipment, and/or equipment that is geographically separated. Various embodiments may be configured to utilize a variety of sampling rates.

Abstract: An embodiment is directed to an electronic device, including a power management device, the power management device generating a plurality of powers according to power management information, and a processor, the processor including a plurality of power blocks supplied with the plurality of powers through a plurality of power lines, and including a power consumption measurement block that measures power consumption of respective power blocks of the plurality of power blocks.

Abstract: Provided is a memory system that includes at least one nonvolatile memory device, a plurality of power lines and a plurality of power domains. The power lines receive a power source voltage. The power domains are respectively connected to the power lines. A reset signal is generated by using voltages which are detected from the power lines. The memory system and a reset method thereof detect the voltages of all power lines to generate a reset signal, and thus enhance reliability of data when a power is shut off.

Abstract: A “Compatibility Tester” extracts observable behaviors from different system implementations (e.g., software, operating systems, device drivers, hardware interfaces, etc.), then performs compatibility testing via comparisons of the extracted behaviors. Traces (e.g., bus level signals between controllers and hardware devices or commands between software components) representing observable behaviors of different implementations of a system are captured. Temporal and structural rules are then mined from these traces. The mined rules (or a model constructed from those rules) are used by a “Rule Checking” process that determines whether reference rules (mined from a known compatible system) are compatible with rules mined from test traces of a second system. Invalid rules are flagged as behavioral compatibility bugs.

Abstract: The invention provides a data storage system, comprising: one or more data storage media; a midplane to which the one or more data storage media are, in use, connected; at least one input/output module for providing control of data transfer between the or each of the data storage media and one or more hosts to which, in use, the data storage system is connected; and a back-up power supply to provide power to the input/output modules in the event of a failure of regular power sources therefor, the back-up power supply being provided separately from the at least one input/output module.