Abstract: The invention relates to a switched-mode power supply (14) for supplying the components of a photovoltaic system (1) with a constant DC output voltage (Ua), comprising connections (15) for connecting to the photovoltaic modules (2) of the photovoltaic system (1) for providing a DC input voltage (Ue), a DC/DC voltage converter (16) comprising at least one switch (17), a transformer (18), a control device (22) for controlling the at least one switch (17) at a switching frequency (fs) for obtaining the desired DC output voltage (Ua), an output equalizing voltage (23) and connections (24) for providing the DC output voltage, as well as the inverter (4) and a string monitoring assembly (3) of a photovoltaic system (1). In order to obtain a DC output voltage (Ua) with the losses as low as possible for a very wide range of DC input voltages (Ue) between 200 V and 1500 V, the DC/DC voltage converter (16) is formed by a combination of flyback and forward converters having two serially arranged switches (17, 17?).

Abstract: Systems and methods of controlling an uninterruptible power supply are provided. The uninterruptible power supply includes an input configured to receive input power, one or more sensors configured to monitor one or more parameters related to the input power, an output, a power conversion circuit coupled with the input and the output, a bypass switch configured to couple the input to the output in a bypass mode of operation, and a controller coupled with the power conversion circuit, and the bypass switch. The controller is configured to receive, from the one or more sensors, values for the one or more parameters, filter the values to determine one or more quality metrics, calculate, based on the quality metrics, a quality measure of the input power, and control the bypass switch based on the quality measure.

Abstract: A power supply device to supply power to a micro server includes a plurality of power supplies configured to be redundant and supply DC power, and an output unit to output the DC power output from the plurality of power supplies to the micro server, wherein one of the plurality of power supplies operates in a master mode and the remaining power supplies operate in a slave mode, and wherein if a load of the micro server is less than or equal to a first predetermined load, at least one of the power supplies that operate in the slave mode does not output the DC power.

Abstract: The apparatus and method of the present invention is a closed loop system that obtains, stores and transfers motive energy. Preferably, the majority of the electricity generated by the method of the present invention is utilized to service a load or supplied to the grid. A portion of the electric power produced is used to recharge the batteries for subsequent use of the electric motor. The system of the present invention controls and manages the battery power by controlling the charging and discharging of the battery reservoir via a series of electrical and mechanical innovations controlled by electronic instruction using a series of devices to analyze, optimize and perform power production and charging functions in sequence to achieve its purpose.

Abstract: A method of configuring an installed energy harvesting device to comply with a local grid connection standard is provided. The method identifies a local grid connection standard for an energy harvesting device that has been installed in a physical installation. The method then configures the energy harvesting device to apply the identified grid connection standard. To identify the local gird connection standard, the method determines a physical location for the installation of the energy harvesting device. The method then identifies the local grid connection standard based on the determined physical location.

Abstract: In a power conversion device, a constant voltage can be supplied even when the voltage of an alternating current power supply fluctuates. A switching element Q1 and switching element Q2 are connected to a direct current power supply series circuit. A connection point of a direct current power supply and direct current power supply is a neutral point terminal, a connection point of the switching element Q1 and switching element Q2 is an output terminal, switch elements S1 and S2 are connected between the output terminal and neutral point terminal, switch elements S3 and S4 are connected between a terminal R of an alternating current power supply having a terminal S connected to the neutral point terminal, and the output terminal, and a first element and second element selected from among the switching elements Q1 and Q2 and switch elements S1 to S4 are turned on and off complementarily.

Abstract: A method of operating a voltage regulator including a source voltage rail and a plurality of output voltage rails, the method including: converting a source voltage on the source voltage rail to a respective output voltage on each output voltage rail; selecting an output voltage rail; comparing the output voltage on the selected output voltage rail to a reference voltage for the selected output voltage rail; and if the output voltage of the selected output voltage rail is less than the reference voltage for the selected output voltage rail, controlling the voltage regulator to increase the output voltage on the selected output voltage rail, wherein the frequency at which an output voltage rail is selected is dependent upon the rate at which the voltage regulator has previously increased the output voltage on that output voltage rail.

Abstract: A switching power supply and a power supply apparatus that incorporates the switching power supply are provided. Advantages of the switching power supply include the following: 1. Two or more switching power supplies can be used in parallel when they have the same kind of input power and the same rated output power. 2. Two or more switching power supplies can be used in parallel when they have the same rated output power but different kinds of input power. 3. Two or more switching power supplies can be used in parallel when they have the same kind of input power but different rated output powers. 4. Two or more switching power supplies can be used in parallel when they have different kinds of input power and different rated output power. 5. When the above-described switching power supplies are connected in parallel, the respective load proportion of each of them can be adjusted at will.

Abstract: Various embodiments of the present technology provide methods for boosting a voltage differential of an energy storage by using a boost component, determining a server system being switched to a boost mode, and discharging the energy storage to provide additional power supplies to the server system during the boost mode. In some embodiments, processing demands of a server system can be monitored. In response to determining that a boost mode is needed to support processing demands of the server system or detecting a component being a bottleneck in processing pipelines of the server system, a boost activation signal can be generated. The boost activation signal can cause a CPU, the bottleneck component, or another component of the server system to operate under a higher clock speed such that a higher processing capacity can be achieved.

Abstract: In a method for designating cooling fan control management in a computing system, a processor causes one or more cooling fans to be managed by a first process, wherein the first process utilizes a first set of temperature sensors of a plurality of temperature sensors. A processor receives temperature data from a first set of temperature sensors. A processor determines a second process to manage the one or more cooling fans, based on the received temperature data from the first set of temperature sensors, wherein the second process utilizes a second set of temperature sensors of the plurality of temperature sensors.

Abstract: An over-voltage protection apparatus includes an input voltage detection module (12) and a second switch (14). The input voltage detection module (12) includes a switch assembly (121), a rectifying circuit (122), a voltage detection circuit (123), and a voltage protection circuit (124). The rectifying circuit (122) rectifies an AC power source (Vac) to generate a DC voltage (Vb). The voltage protection circuit (124) controls the second switch (14) to disconnect the AC power source (Vac) to supply a load (90) when the voltage detection circuit (123) detects that the DC voltage (Vb) reaches to a first over voltage value (Voth1). The voltage protection circuit (124) controls the switch assembly (121), thereby providing a voltage-limiting protection and a current-limiting protection when the voltage detection circuit (123) detects that the DC voltage (Vb) reaches to a second over voltage value (Voth2).

Abstract: A power supply system includes: a switching power supply; and a control device, wherein the switching power supply includes: a transformer; a semiconductor switching element; a switch control unit; and a rectifying/smoothing circuit, the switch control unit is supplied with power from the main power supply, starts to control the switching of the semiconductor switching element, and oscillates a primary side of the transformer to induce a voltage on the secondary side of the transformer, the control device outputs a control pulse signal to the switch control unit to stop the oscillation of the transformer, thereby changing the mode of the switching power supply to an output stop mode, in an output mode in which the switching power supply smoothes the voltage induced on the secondary side and outputs the smoothed voltage.

Abstract: A direct current power (DC) distribution system includes a plurality of DC power sources, a ring bus, a plurality of switch assemblies, and a plurality of passive protection assemblies. Each DC power source is coupled to the ring bus by a respective switch assembly and a respective passive protection assembly.

Abstract: A communication controller controls non-contact communication with an external device via an antenna while at least one of first and second power is supplied. A first circuit electrically connects a first power supply to a communication node. A second circuit electrically connects a second power supply to the communication node. The first circuit includes a first electrical component configured to prevent second power from being supplied to a particular target electrically connected to the first power supply while the second power is supplied to the communication node. The communication controller communicates with the communication node in a certain data communication method while the second power is supplied to the communication node. In response to reception of electric power from the external device via the antenna, the second power supply supplies the second power to the communication controller, and supplies the second power to the communication node through the second circuit.

Abstract: Some embodiments include a kit for supplying solar power in a battery-powered or fuel cell powered unmanned aerial vehicle (UAV) by incorporating flexible solar cells into a component of a UAV, affixing flexible solar cells to a surface of a UAV, or affixing flexible solar cells to a surface of a component of a UAV. The kit also includes a power conditioning system configured to operate the solar cells within a desired power range and configured to provide power having a voltage compatible with an electrical system of the UAV. Another embodiments include a solar sheet configured for installation on a surface of a UAV or on a surface of a component of a UAV. The solar sheet includes a plurality of solar cells and a polymer layer to which the plurality of solar cells are attached.

Abstract: A method for controlling game data communication between portable electronic devices includes receiving one or more performance parameters from multiple portable electronic devices as slave devices. The method also includes determining whether the portable electronic device satisfies performance criteria with respect to the multiple portable electronic devices. The method further includes, in accordance with a determination that the portable electronic device does not satisfy the performance criteria with respect to the multiple portable electronic devices: selecting one of the multiple portable electronic devices as a new master device; and transferring a master device status to the selected portable electronic device. The method includes, subsequent to transferring a master device status to the selected portable electronic device, communicating, as a slave device, with the selected portable electronic device.

Abstract: Embodiments herein disclose an apparatus for a modular PV system. The apparatus may include a wire box coupled to an alternating current (AC) system through an AC bus and to both a first direct current (DC) power source and a second DC power source through a conduit; a first inverter having a first chassis attached to the wire box and being coupled to the first DC power source through the wire box, the first inverter comprising a first pass-through channel and a second pass-through channel; and a second inverter having a second chassis attached to the first chassis and being coupled to the second DC power source through the first pass-through channel and the wire box, wherein the first chassis and the second chassis are separate chassis.

Abstract: A system and method for preventing bus voltage sagging when an Oring-FET in an N+1 redundant power supply configuration is faulty during power up. Each redundant power supply includes an Oring-FET and a voltage comparator. The voltage comparator receives and compares an input voltage and an output voltage of the Oring-FET during power up. In the event input voltage is less than the output voltage, the Oring-FET is deemed to be operating properly and provides output to a communicatively coupled system bus in response to the input voltage reaching a predetermined voltage threshold level. In the event the input voltage is approximately equal to the output voltage, the voltage comparator assists in preventing inrush current from flowing from the communicatively coupled system bus and prevents voltage sagging on the communicatively coupled system bus when another redundant power supply configuration is providing power to the communicatively coupled system bus.

Abstract: A control system for a power converter includes a digital reference signal generator, a first proportional-integral (PI) controller, a second PI controller, and a diode. The digital reference signal generator is configured to operate in a maximum peak power tracking (MPPT) mode of operation and an output voltage control mode of operation. In the MPPT mode of operation, the digital reference signal generator is configured to receive an input voltage and an input current provided to the power converter and provide an input voltage reference signal based on the input voltage and the input current. In the output voltage control mode of operation, the digital reference signal generator is configured to provide a constant input voltage reference signal.

Abstract: A DC/AC converter for converting DC power of a number of inductively connected generators into power grid conformal AC power for feeding into a connected power grid with a number of phases, includes an intermediate circuit with a positive and a negative intermediate circuit connection, and for each phase, a bridge. Each bridge includes a first switch between the positive intermediate circuit connection and a phase terminal, a second switch connected between a positive generator terminal of the generator and the phase terminal, a third switch connected between a negative generator terminal of the generator and the phase terminal, and a fourth switch between the negative intermediate circuit connection and the phase terminal.

Abstract: A voltaic cell comprising an iron in alkali anode where metal iron is oxidized to iron II hydroxide and a ferricyanide in alkali cathode where ferricyanide is reduced to ferrocyanide, and uses thereof.

Abstract: A wind farm output control device includes a potential estimator estimating a maximum electrical energy outputtable by each wind power generation device, a control amount determiner determining, based on the estimated maximum power amount, a control amount for an effective power of each wind power generation device and/or a reactive power thereof in a wind farm, and a control amount distributor distributing the control amount based on an available power generation amount of each wind power generation device. The potential estimator estimates the maximum power amount based on a pitch angle of blades, an angular speed deviation of a power generator, and a conversion loss of the wind power generation device. Within the range of the estimated maximum power amount, the control amount for the output by the wind farm is distributed within a range where each wind power generation device is outputtable according to the wind condition.

Abstract: Embodiments related to the conversion of DC power to AC power are disclosed. For example, one disclosed embodiment provides a power conversion system, comprising a plurality of direct current (DC) power sources, a plurality of power output circuits connected to one another in a parallel arrangement, each power output circuit being connected to a corresponding DC power source to receive power from the corresponding DC power source and to selectively discharge power received from the corresponding DC power source, a power combiner configured to combine power received from the plurality of power output circuits to form a combined power signal, an output stage configured to convert the combined power signal into an AC signal or a DC signal, and a controller in electrical communication with each power outlet circuit and the power combiner to control the output of power by the power converter.

Abstract: A modular truss assembly configured to be placed in small or narrow spaces such as within the floor, sidewall, or crown of a vehicle for mechanically and electrically mounting system components of a modular equipment center (MEC). A plurality of MECs is spatially distributed throughout the vehicle to service equipment loads. The modular truss assembly provides different voltage levels for powering the system components of the MEC and for powering the equipment loads. In one or more configurations, all or part of the modular truss assembly can be removed from the vehicle for repair or replacement.

Abstract: A method implemented in a storage system that has moveable storage devices includes a motion controller receiving movement related data of a storage device from at least one sensor associated with the storage device. In response to the received movement related data indicating at least one pre-identified condition, a park command is issued that triggers the reading head of the storage device to enter a parked state in which the storage device is protected from damage that can occur due to motion of the reading head while the pre-identified condition exists.

Abstract: A power supply system includes an AC input interface, a DC output interface, and each of a single-conversion power supply path and a multi-conversion power supply path extending between the AC input interface and the DC output interface. Operating the system in a first or standard mode includes conveying electrical power between an AC power supply and an electrical load by way of the single-conversion power supply path. Operation in a second or non-standard operation mode includes conveying the electrical power by way of the multi-conversion power supply path.

Abstract: A feed system has a first electronic unit, a second electronic unit, and a feed unit. The first electronic unit and the feed unit are separated. The feed unit transmits power to a power reception section of the second electronic unit based upon result information of a first authentication between the first electronic unit and the second electronic unit. The feed unit performs a second authentication on the second electronic unit in conjunction with power transmission.

Abstract: A power management and distribution (PMAD) system includes a main DC bus, an auxiliary DC bus, a power converter, one or more hybrid solid-state circuit breakers, and a controller. The power converter converts power from the main DC bus to provide a regulated output to the auxiliary bus. Each hybrid SSCB includes a main switch connected between the main DC bus and a load and an auxiliary switch connected between the auxiliary DC bus and the load. The controller selectively turns the main switch and the auxiliary switch On/Off to selectively supply power from the main DC bus and/or the auxiliary DC bus to the load, and to selectively regulate the voltage on the auxiliary DC bus.

Abstract: An energy receiver includes: a power receiver coil configured to wirelessly receive power transmitted from a power transmitter; a detection section configured to detect a foreign object; and a power storage section configured to supply power to the detection section during detection of the foreign object.

Abstract: A power supply apparatus including a multi-outputs power supply circuit and a first regulating circuit is provided. The multi-outputs power supply circuit has a plurality of output terminals. The multi-outputs power supply circuit provides a first voltage from one output terminal among the output terminals and provides a second voltage from another one output terminal among the output terminals, where a rated voltage value of the first voltage is greater than a rated voltage value of the second voltage. The first regulating circuit is coupled between the one output terminal and the another one output terminal, where the first regulating circuit is enabled when the first voltage exceeds a first threshold, and begins to regulate the second voltage after being enabled.

Abstract: System for displaying hazard events and adjusting hazard detector settings on a mobile device includes a user interface executed on the mobile device, a hazard detector, and a computer server system communicatively coupled to the mobile device and hazard detector. The hazard detector generates hazard events indicating detection of smoke or carbon monoxide. The hazard events are transmitted to the computer server system and then to the mobile device. User interface displays the hazard events in an event group. User interface receives an adjusted value for a setting of the hazard detector and transmits the adjusted value to the computer server system. The computer server system determines that the adjusted value corresponds to the hazard detector, receives a check-in event from the hazard detector, and transmits the adjusted value to the hazard detector in response to receiving the check-in event. The hazard detector applies the adjusted value to the setting.

Abstract: A plurality of modular equipment centers (MECs) spatially distributed throughout a vehicle servicing equipment loads. Each MEC independently provides localized power and communication to service the equipment loads and each equipment load is serviced by the nearest MEC. In at least one embodiment, only primary power is distributed across section breaks of the vehicle to minimize the number of connections between section breaks, reduce overall vehicle weight, and to increase vehicle build rate.

Abstract: A photo-voltaic (PV) power generating system and a control system for PV array string-level control and PV modules serially-connected into strings of PV modules. The system includes plural parallel strings of serially-connected powergenerating photovoltaic modules that form a PV array, DC/DC micro-converters that are coupled to a DC voltage buss and to the output of a corresponding photovoltaic module or to the output of a string of photovoltaic modules; a gating or central inverter; and a control system. The micro-converters are structured and arranged to include at least one of: an active clamp device, a ground fault detection device, and a fractional power converter that injects power in series or in parallel with voltage or current from the power-generating portion onto the DC buss.

Abstract: A USB socket includes a socket body, an upper cover, at least one USB interface disposed in the socket body, and a power supply conversion structure for converting an external power supply to a power supply suitable for output of the USB interface. A USB jack is disposed on the upper cover at a position corresponding to the USB interface, the upper cover is detachably mounted on the socket body, the USB interface is mounted at a lower side of the upper cover, and when the upper cover is mounted to the socket body, the USB interface inserts into the socket body. A moving contact is electrically connected to the USB interface, a fixed contact electrically connected to the power supply conversion structure is further disposed in the socket body and the moving contact is driven to be in contact conduction with the fixed contact.

Abstract: A solar panel is disclosed that can be daisy-chained with other solar panels. The solar panel automatically generates output alternative current (AC) power that is in parallel with input AC power coming into the solar panel when the solar panel senses the input AC power so that the solar panel operates as a slave in this state. The solar panel automatically generates standalone AC output power when the solar panel fails to detect input AC power coming into the solar panel where the solar panel operates as a master in this state. The solar panel generates the standalone output AC power without any reliance on input AC power generated by a utility grid and/or other AC power sources external to the solar panel.

Abstract: An inverter includes a DC/AC converter connectable to a DC power grid, at least one DC/DC converter arranged upstream of the DC/AC converter and providing a galvanic isolation, and a DC voltage link at the input of the at least one DC/DC converter and connectable to at least one DC power source. The inverter also includes at least one further DC voltage link which is galvanically isolated from the first DC voltage link by the DC/DC converter, on-board voltage rails supplying a controller and other auxiliary devices of the inverter with electric energy; and an on-board supply unit. The on-board supply unit is configured and adapted to feed the electric energy into the on-board voltage rails both out of the first DC voltage link and out of the at least one further DC voltage link.

Abstract: A power distribution system. The power distribution system may comprise a plurality of renewable energy sources and plurality of converters to increase fault tolerance in the event of a component failure and to minimize output power degradation. Each converter may be comprised of a plurality of input ports, wherein each input port receives controlled amount of energy from the plurality of renewable energy sources. Each input port may also be disconnected in the event of component or device failure. Each of the converters is preferably configured to have additional power capacity to offset any reduced output capacity by a faulty converter, and preferably, the performance of each converter is monitored by the system to maintain its performance. The power distribution system may be monitored by a third party to maintain the energy output levels and to facilitate the power distribution system's restoration to normal functioning.

Abstract: A Powered Device (PD) in a PoE system has two input channels, each being coupled to a separate Power Sourcing Equipment (PSE) for increased reliability. A first PD controller is coupled to the first channel to perform hand-shaking and closes a first Power Good (PWRGD) switch when the PoE voltage is detected on the first channel. A second PD controller is coupled to the second channel to perform hand-shaking and closes a second PWRGD switch when the PoE voltage is detected on the second channel. A diode bridge couples both channels to a single regulating power supply that supplies power to a load. Auxiliary switches are controlled by the PWRGD signals so that only the first channel or the second channel is coupled to the diode bridge in the event that both channels receive the respective PoE voltages. Therefore, hot standby is provided using only one power supply.

Abstract: A photoelectric conversion device includes at least two photoelectric conversion elements which have voltage-current characteristics different from each other. Further, one of the photoelectric conversion elements has photoelectric conversion efficiency higher than that of the other photoelectric conversion element under the environment in which room light can be obtained. Furthermore, the other photoelectric conversion element has photoelectric conversion efficiency higher than the one of the photoelectric conversion elements under the environment in which sunlight can be obtained. Moreover, each of the voltage of electric power generated in the at least two photoelectric conversion elements is adjusted by one of at least two DC-DC converters corresponding the photoelectric conversion element. In addition, part of the electric power generated in the one of the photoelectric conversion elements is used as drive electric power of the at least two DC-DC converter.

Abstract: A semiconductor device including a first internal voltage generating circuit that includes a capacitor including a first electrode and a second electrode, and the first internal voltage generating circuit to generate an internal voltage by charging the capacitor to a first voltage and applying a second voltage to the first electrode of the capacitor to generate a third voltage that is greater than the first and the second voltages on the second electrode in absolute value, and a control circuit to perform a control by applying a fourth voltage that is less than the first voltage to the capacitor when the first internal voltage generating circuit is in a standby state.

Abstract: Various power processing systems are described that employ a multiply-connected velocity inhibiting circuit. At least one active circuit can be employed to synthesize at least one passive lumped element in the multiply-connected velocity inhibiting circuit.

Abstract: In a power converter, in a period in which the polarities of output voltage and output current of a power converter differ, a pulse train voltage corresponding to a PWM signal is output by a first switching element and a second switching element being turned off, one element of a first switch element and a second switch element being turned on, and the other element being turned on and off based on an inverted signal of a PWM signal pulse width modulated in accordance with an output voltage command.

Abstract: A power control device is provided at a customer site having a distributed power supply capable of supplying power and load devices and controls a stand-alone operation in which the power supplied from the distributed power supply is converted to AC power and supplied to the load devices. The power control device comprises: a determination processing unit for determining whether or not a power supply supplied from the distributed power supply during the stand-alone operation satisfies a power demand necessary for operating the load devices; and a supply control unit for, when it is determined that the power supply does not satisfy the power demand, intermitting the stand-alone operation. After intermitting the stand-alone operation, the determination processing unit re-executes the stand-alone operation and determines whether the power supply satisfies the power demand or not.

Abstract: An energy supply system, an aircraft and spacecraft using such an energy supply system and a method for providing electrical energy with the energy supply system. The energy supply system comprises an energy source which generates a direct current or a direct voltage. A converter is coupled to the energy source and is designed to convert the generated direct current or the generated direct voltage into an output current specified for the energy supply system or an output voltage specified for the energy supply system. A switching device is designed to couple an output of the energy supply system to the converter or directly to the energy source as a function of the electrical power required by the energy supply system.

Abstract: A multiple UPS system has a plurality of UPS subsystems with a separate UPS data communications bus coupling a controller of each UPS subsystem to an associated controller of an associated tie cabinet. The multiple UPS system further includes a data communications tie bus that couples the controllers of the tie cabinets to each other. The controllers of the tie cabinets arbitrate power line based coordinating signals between the UPS buses without the use of auxiliary signals.

Abstract: Diodes and switching means as well as an autotransformer connect multiple AC sources of variable frequency and voltage to the utility grid, without first rectifying and thereby transferring the AC input energy to a common DC bus. Instead, the individual positive and negative AC input half waves or parts of those half waves, if and when they occur during a particular time interval, are injected into the positive or negative half wave of the utility AC power directly and respectively. The amount of energy transferred may be controlled by a microprocessor. Assuming the prime mover that generates AC voltages in multiple coils is a windmill, then the required circuitry to accomplish this energy transfer will be physically small enough to allow that circuitry to reside in the windmill itself, and thereby this energy conversion method significantly simplifies the installation of a windmill that uses this energy conversion method.

Abstract: A device (1) for stabilizing a supply voltage (UBatt) in a motor vehicle, having a function component of the motor vehicle, in particular in the form of a starter (4), a voltage source (10) which is connected to the function component (4) in order to supply the function component (4) with the supply voltage (UBatt), characterized in that the voltage source (10) is connected to the function component (4) via a resistor cascade (30) in order to stabilize the supply voltage (UBatt).

Abstract: Disclosed are a semiconductor integrated circuit including first and second supply terminals; an input voltage selection circuit including a power-on reset circuit, an input voltage detection circuit, a control circuit and a power-on reset auxiliary circuit; and first and second power supply switches, and its operating method. When the above detection circuit detects the supply of both first and second power supply voltages to both supply terminals upon completion of a power on reset operation of the reset circuit, the control circuit controls either of both power supply switches, having a high priority of preset priorities, to an on state. After its control, the auxiliary circuit detects a power failure in the power supply voltage supplied to the high-priority power supply switch. The reset circuit performs another power on reset operation. The control circuit controls the power supply switch having a low priority of the priorities to an on state.

Abstract: A method implemented in a storage system that has moveable storage devices includes a motion controller receiving movement related data of a storage device from at least one sensor associated with the storage device. In response to the received movement related data indicating at least one pre-identified condition, a park command is issued that triggers the reading head of the storage device to enter a parked state in which the storage device is protected from damage that can occur due to motion of the reading head while the pre-identified condition exists.

Abstract: A power supply apparatus includes a power supply unit that wirelessly supplies power to an electronic device including a first unit that wirelessly receives power from the power supply apparatus, and a control unit that execute control, if an external apparatus, including a battery, and the electronic device are connected, to select the first unit to charge the battery by the first unit.