Abstract: A battery charging device includes a battery pack including a plurality of battery cells connected in series, and a control unit. The control unit is configured to change a series connection of the battery cells in response to a variation in output voltage of a solar battery.

Abstract: A photovoltaic array cable bus system can include a cable bus and at least one electrical connector.

Abstract: A system and method for powering or charging multiple receivers wirelessly with a power transmitter. In accordance with an embodiment, to enable ease of use, it is desirable that the receiver can be placed on a larger surface area charger without the need for specific alignment of the position of the receiver; that the system can be used to charge or power multiple devices of similar or different power and voltage requirements or operating with different wireless charging protocols on or near the same surface; and that a degree of freedom is provided with respect to vertical distance (away from the surface of the charger) between the charger and the receivers. Such features enable improved functionality with devices, vehicles, or other products, including, for example, charging of electric vehicles (EV), and trains.

Abstract: A circuit, having a plurality of regulated, parallel, voltage sources, an a.c.-d.c. converter circuit and a regulating unit, and a method for controlling it. The regulated voltage sources include an unregulated voltage source of a temporally variable output d.c. voltage, a step-up converter and an associated regulating device, where the step-up converter is a three-point step-up converter. The regulating unit measures the intermediate circuit voltage of the a.c.-d.c. converter circuit and is connected with the regulating devices. In the method for control, the regulating unit determines the voltage in the intermediate circuit of the a.c.-d.c. converter circuit and from this determines, as a function of the maximally and minimally permissible intermediate circuit voltage, a set-point value for the output voltage of the regulated voltage sources. This set-point value is transmitted to the regulating devices, from which the regulating devices determine the control conditions for the step-up converter.

Abstract: Systems, methods, computer-readable storage mediums including computer-readable instructions and/or circuitry for control of transmission to a target device with communicating with one or more sensors in an ad-hoc sensor network may implement operations including, but not limited to: receiving electrical power via at least one structurally integrated electrically conductive element; and powering one or more sensing operations of one or more sensors via the electrical power.

Abstract: The present invention relates generally to electrical power distribution, for example, in aircraft. More particularly, according to a first aspect, the present invention relates to a power supply system for power distribution to one or more loads in a safety-critical power supply network. The power supply system comprises at least one power source, a power bus and a distributed control system. The distributed control system comprises a central controller operably coupled to at least one bus module through a data bus. Bus modules include bus controllers that are operable to connect respective power sources to the power bus.

Abstract: An example low voltage buss system is provided. The low voltage bus system distributes low voltage DC power into the office workspace in a manner that reduces clutter and promotes customizable and efficient workspace usage. The low voltage bus system distributes low voltage DC power into the office workspace via an electrical buss having a connector at the end of the buss to distribute low voltage DC power to and throughout office workspace and, in particular, office furniture.

Abstract: A power supply circuit has an LLC converter stage for converting a DC voltage input into a DC voltage output, and at least one hysteretic converter stage. Each hysteretic converter stage has a DC voltage input coupled to the DC voltage output of the LLC converter stage, and a DC current output. The LLC converter stage lacks a feedback control, and is operated at its load independent point. A ripple on the DC voltage output of the LLC converter does not affect the output current of the hysteretic converter stage. The stable DC current output of the hysteretic converter stage is coupled to a load having one or more LED strings.

Abstract: Disclosed is a power supply unit reducing deterioration of power loss caused by cables. A connector connecting a power line L11 connected to a battery and a plurality of ramp loads is attached to a holder housing at least one of the plurality of ramp loads. The connector is provided with: a pressure-bonding power source terminal to which the power line L11 is connected and power is inputted, a first branch circuit branching one power line inputted from the pressure-bonding terminal into a plurality of branch lines, a plurality of tub-like power source terminal, pressure-bonding power terminals each connected to the plurality of branch lines branched by the first branch circuit and outputting power to each ramp load; and a housing them.

Abstract: A capacitive powering system constructed to enable wireless power transfers inside a tube-shaped structure (200) includes a capacitive tube (220) including a pair of receiver electrodes (223, 224) connected to a load (221) through a first inductor (222), wherein the first inductor is coupled to the load to resonate the system; a transmitter device (210) including a pair of transmitter electrodes (213, 214) connected to a power driver(211);and an insulating layer (230) for electrically insulating the capacitive tube from the transmitter device to form a capacitive impedance between the pair of transmitter electrodes and the pair of receiver electrodes, wherein a power signal generated by the power driver is wirelessly transferred from the pair of transmitter electrodes to the pair of receiver electrodes to power the load when a frequency of the power signal substantially matches a series-resonance frequency of the first inductor and the capacitive impedance.

Abstract: Vehicles, systems, and methods are disclosed for providing and directing first power, such as vehicle generator power, and alternate sources of power. In a particular embodiment, a vehicle includes a power distribution grid that includes a plurality of power sources and a plurality of distributions buses configured to distribute power from the plurality of power sources. The plurality of power sources include an engine-driven power source is configured to provide first power where the first power has first power characteristics. The plurality of power sources also includes a plurality of engine-independent power sources including a first alternate power source configured to provide first alternate power. The first alternate power has first alternate power characteristics that are different than the first power characteristics. The plurality of engine-independent power sources also includes a second alternate power source configured to provide second alternate power.

Abstract: A primary differential input pair of transistors and a secondary differential input pair of transistors are capable of operating in parallel to provide load current. A level-shifting pre-stage to the secondary differential pair downwardly level-shifts rail-to-rail input signals. Doing so prevents the secondary differential pair from entering cut-off. A tail current shunt device provides tail current to the secondary differential pair as the primary differential pair approaches cut-off when a common-mode component of the input signals approaches the positive voltage rail. Consequently, the sum of currents through first differential input transistors associated with the primary and secondary differential input pairs remains constant to the first load. Likewise, the sum of currents through the second differential input transistors associated with the primary and secondary differential input pairs remains constant to the second load.

Abstract: A method of providing power to electronics within a cable is described. The method may include communicatively coupling a first device to a second device via a cable. The cable may include electronic components integrated within the cable. The method may also include providing a signal from the first device to the second device. The method may also include providing, via an internal power line within the cable, power to the integrated electronic components. The method may also include providing, via a device power line within the cable, power between the first device and the second device, wherein the internal power line and the device power line are electrically isolated from one another inside the cable.

Abstract: Embodiments of a system, topology, and methods for providing electrical power to electronic devices from various power sources are described generally herein. Other embodiments may be described and claimed.

Abstract: A switching assembly includes a first terminal and a second terminal, a first switch connected to the first terminal, and a second switch connected to the second terminal. The switching assembly further includes a rectifier bridge connected between the first switch and the second switch, and a third switch connected between the first terminal and the second terminal. The switching assembly also includes a control unit that selectively opens and closes the first switch, the second switch and the third switch, and selectively turns on and off the rectifier bridge.

Abstract: An electrical system includes at least one power port and at least one monitoring and control device that is coupled to the power port. The monitoring and control device includes a load control module configured to control an amount of electrical power transmitted to at least one electrical load. The load control module is further configured to receive a power control command from a power system and to transmit a power control acknowledgement to the power system.

Abstract: Redundant power delivery including a power cable comprising a first plug including contacts for hot, neutral, and ground and a plurality of power lines, each power line electrically connected independently to the hot, neutral, and ground contacts of the first plug at a first end and each power line having a second plug at a second end providing contacts for hot, neutral, and ground; a selectable redundant power module, the selectable redundant power module comprising a plurality of input connectors, each input connector comprising a hot, neutral, and ground contacts and adapted to engage each second plug of each power line; and a switch to select one or more of the input connectors of the selectable redundant power module for receiving power.

Abstract: A power feeding apparatus includes a power feeding stop section that stops, all together, the supply of electric power to a plurality of sensors connected to the power feeding apparatus. Each of the sensors outputs a signal including timing information indicating the timing at which the supply of electric power is stopped by the power feeding stop section. A synchronization section synchronizes the output signals of the plurality of sensors based on the timing information.

Abstract: A load control device includes saturable devices, loads, a phase controller, a bypass unit, and a controller. Plural saturable devices are connected in series to each other. Plural loads are respectively connected to the saturable devices and are supplied with power via the saturable devices. The phase controller phase-controls an output voltage of an AC power supply so as to be supplied to the respective loads. The bypass unit can supply a reduced bypass current so as to bypass the phase controller from a zero cross point of each half cycle of an AC power supply voltage. The controller sets an output of the phase controller and controls the output thereof to a set output value, and stops the supply of the bypass current in a condition in which a firing angle (conduction phase) is equal to or more than the predetermined value.

Abstract: An efficiency monitor for monitoring the efficiency of power transmission by an inductive power outlet. The efficiency monitor includes an input power monitor, for measuring the input power delivered to the primary coil, and an output power monitor, for measuring the output power received by the secondary coil. The input and output powers are used by a processor to determine an index of power-loss. A circuit breaker may be used to disconnect the inductive power outlet in case of excessive power loss.

Abstract: The subject-matter of the present invention concerns an electrical architecture for power distribution to subsea equipment comprising at least one variable speed drive, VSD, module, wherein said at least one VSD module comprises at least one self commutated line side converter including power semiconductor.

Abstract: A system for managing distribution of electrical power includes a power management circuit, power control units, a first keyline and a second keyline. The power management circuit includes a device configured to measure power consumed by an electrical load, and a comparator comparing the measured power with a power limit. Each power control unit includes an outlet for delivering power to a load; a timing control circuit coupled to each outlet and configured to deliver an enabling signal to each outlet individually with a time delay; a signal input; and a signal output. The first keyline connects the power management circuit with the signal input of one power control unit; the second keyline connects the signal output of that power control unit with the signal input of another power control unit. Each power control unit is configured to propagate a signal to another power control signal via the second keyline.

Abstract: An electric energy converter generates a first output signal (S1) and a second output signal (S2) and includes switching elements (10), the converter including at least two bridge arms (10a, 10b, 10c) adapted to generate the first output signal (S1), with a transformer generating the second output signal (S2) simultaneously with the first output signal. The bridge arms (10a, 10b, 10c) are controlled such as to generate the second output signal (S2), the second output signal (S2) being a function of a midpoint voltage equivalent to the sum of the output voltages (E1, E2, E3) of the bridge arms (10a, 10b, 10c) in relation to a midpoint of the input voltage at the switching elements (10). The use thereof in a train is also described.

Abstract: Method for operating a fail operational power system for a vehicle includes monitoring voltages on first and second power distribution paths arranged in parallel. Each path includes a respective first or second isolator switch effective when operative in a closed state to power the respective path by a respective energy storage device for supplying electrical power to one or more loads partitioned on each of the paths. A third isolator switch controllably operative between open and closed states is monitored. The closed state of the third isolator switch connects the paths and the open state opens the connection between the paths. When a predetermined operating mode requiring fail operational power is enabled, the third isolator switch is controlled to the open state when at least one of the monitored voltages violates a reference voltage and is controlled to the closed state when neither one of the monitored voltages violate the reference voltage.

Abstract: Disclosed is a control system for use with one or more building power circuits, the control system including a control device delimited by a control device housing, the control device being configured to receive power from the building power circuits and provide power to at least one power output, and a receiver configured to receive radio frequency signals, the receiver being disposed remote of the control device housing and configured for removable wired connection with the control device.

Abstract: An HEMS 700 provided in a consumer having independently operable power supply means (PV 100, storage battery 200, PCS 400 and the like) and at least one load 300, for controlling the power supply means and the load 300, determines an during-independent-operation schedule that is an operation schedule of the load during the independent operation on the basis of a period when the independent operation is performed, a power supply status of the power supply means, and a status of the load 300.

Abstract: In various implementations, a pager may be coupled to a console. The pager may include a battery and coupling the pager to the console may provide power to the console. In some implementations, the power provided to the console may charge a battery of the console and/or allow the console to perform one or more operations.

Abstract: An electrical power-supplying device includes a housing portion having a 3D interior volume with a capacity for holding a plurality of power adapters, power transformer modules and power plugs associated with a group of electrical appliances. A power-receptacle assembly or structure is supported within the interior region of the housing portion, and supports a plurality of electrical receptacles and one or more electronic circuits, electrically connected to a power supply cord. A cord portal formed in the housing allows a group of electrical power cords associated with the group of electrical appliances, to enter/exit the 3D interior volume in a bundled manner. A housing cover portion is adapted to cover the power-receptacle assembly, and conceal appliance power plugs plugged into the electrical receptacles, appliance power cords associated with the electrical appliances, and power adapters and transformer modules contained in the housing portion.

Abstract: Disclosed is an image processing apparatus including: an image processor which processes and displays an image signal; a communication unit which transmits a power consumption of the image processing apparatus to a power control server, and receives a message notifying necessary power saving function from the power control server; and a controller which controls the image processor to display a power load warning message and performs a power saving function in response to the power load warning message if the message notifying the necessary power saving function is received. With this, while operation rate of the power plant having high costs is lowered, low carbon emission of the plant may be achieved and a user of the image processing apparatus may reduce power consumption by performing a power saving function.

Abstract: An arrangement of at least one personal service unit in a vehicle. At least one rail is arranged on the vehicle side. The rail includes at least one lead. The personal service unit includes at least one electricity collector which is arranged in a manner such that the electricity collector conductively contacts the at least one lead of the rail in the installed condition of the personal service unit in the vehicle.

Abstract: A power transmitting device transmitting electric power to a power receiving device includes a power transmitter (110) transmitting electric power in a contactless manner at a resonant frequency having a predetermined relation with a resonant frequency of a part, the part being provided in the power receiving device and receiving electric power, a data receiver (112) receiving from the power receiving device a random number value generated by the power receiving device each time electric power transmission of the power transmitter (110) is started, and a controller (117) determining whether or not all random number values satisfy predetermined condition. When the condition is satisfied, the controller (117) continues electric power transmission via the power transmitter (110).

Abstract: A power supply apparatus includes a first constant-power power supply that switches and supplies powers of j types (where j is a natural number of two or more), a second constant-power power supply that switches and supplies powers of k types (where k is a natural number of two or more), and a switching controller that selects and switches on the first and second variable-power power supplies, excluding power transition periods thereof, to supply a load with a constant power.

Abstract: There are provided an electric power feed apparatus, an electric power feed system, and an electronic apparatus which are capable of performing transmission efficiency control corresponding to positions of apparatuses when electric power transmission is performed between the apparatuses through a magnetic field. The electric power feed apparatus includes an electric power transmission section including an electric power transmission coil for performing electric power transmission through a magnetic field and an auxiliary resonance section including one or a plurality of resonators. A main resonant frequency in a main resonance operation with use of the electric power transmission coil during the electric power transmission and an auxiliary resonant frequency in the resonator are different from each other.

Abstract: A load control system for controlling the amount of power delivered from an AC power source to a plurality of electrical load includes a plurality of energy controllers. Each energy controller is operable to control at least one of the electrical loads. The load control system also includes a first broadcast controller that has a first antenna and a second antenna. The first antenna is arranged in a first position and the second antenna is arranged in a second position that is orthogonal to the first position. The broadcast controller is operable to transmit a first wireless signal via the first antenna and a second wireless signal via the second antenna. Each of the energy controllers is operable to receive at least one of the first and second wireless signals, and to control the respective load in response to the received wireless signal.

Abstract: A load control device is directly connected to a power utility line carrying electrical power using alternating current (AC) and to a load provided by a device located at premises. At the load control device, values are monitored for one or more load-responsive parameters of the electrical power over a period of time. A nominal value is determined for each of the one or more load-responsive parameters based upon the monitored values over the period of time. Threshold values are determined for the one or more load-responsive parameters based upon an acceptable deviation from the corresponding nominal value. A load-responsive parameter is detected as being outside of the threshold values. The load control device is then used to interrupt the providing of power to the load in response to the one or more load-responsive parameters being detected as being outside of the threshold values.

Abstract: A power control system utilizing real-time power system operating data to effectuate predictive load shedding so as to accurately predict the need for and the optimal type of responsive action to a contingency—before the contingency actually occurs.

Abstract: A landscape electrical component connector system is provided which is based on a low-voltage electrical circuit with underground wire cable lines and interchangeable, below ground waterproof connectors which interconnect outdoor electrically positioned above ground lighting, audio, and cooling components. These components, which are hard-wired with waterproof connectors, provide versatility in their ability to be easily and simply added and removed from the system manually, without the use of tools, as desired by the owner. The waterproof connectors are quick connect elements which allow for fast and clean interchange of the various components and circuit splitters and extensions, both during initial installation of the system and after it has been installed.

Abstract: A resistance compression network uses transmission line sections having asymmetric lengths to compress the resistance range of multiple loads. In some embodiments, the characteristic impedance of the transmission line sections is related to the geometric mean of the load resistance range. The resistance compression network may be used within, for example, an energy recovery system or in any other application where a reduction in the resistance range of multiple loads is desired.

Abstract: A monolithically integrated power semiconductor component includes a semiconductor body having first and second regions each extending from a first surface of the semiconductor body to a second opposing surface of the body. A power field effect transistor structure formed in the first region has a first load terminal on the first surface and a second load terminal on the second surface. A power diode formed in the second region has a first load terminal on the first surface and a second load terminal on the second surface. The second load terminals of the power field effect transistor structure and power diode are formed by a common load terminal. An edge termination structure is arranged adjacent to the first surface and in a horizontal direction between the first load terminal of the power field effect transistor structure and the first load terminal of the power diode.

Abstract: A system and method are provided for controlling a locomotive such that the braking effort is maintained at its optimal maximum level throughout the extended range. The method comprises detecting a first reduction in speed of the locomotive; energizing at least one solid state device connected across one or more grid resistors for a first predetermined amount of time to divert current away from the one or more grid resistors for the first predetermined amount of time; and de-energizing the solid state device after the first predetermined amount of time. The solid state device may be an Isolated Gate Bipolar Transistor (IGBT) and a plurality of solid state devices are energized, each solid state device being connected across a corresponding resistor grid.

Abstract: Disclosed are an apparatus and a method for transmitting/receiving wireless energy in an energy transmission system. The apparatus includes: a transmitting controller configured to generate a wireless energy signal; a transmitting resonance body port configured to transmit the wireless energy signal; and a transmitting resonance body configured to transmit the wireless energy signal transmitted through the transmitting resonance body port to receiving apparatuses, wherein the transmitting controller transmits impedance control signals for controlling impedance of each of the receiving resonance body ports of the plurality of receiving apparatuses.

Abstract: A power management device can include a housing, a power input associated with the housing, and a plurality of power outputs associated with the housing. At least certain power outputs can be connectable to one or more electrical loads external to the housing and to the power input. In some embodiments, a communications bus and one or more power control sections can be associated with the housing. In some embodiments, one or more power control sections can communicate with the communications bus and with one or more corresponding power outputs among the plurality of power outputs. In some embodiments, a power information display can communicate with the communications bus. If desired, a power information determining section can be associated with the housing and in communication with the communications bus. The power information determining section may communicate power-related information to the power information display.

Abstract: An input circuit includes an interface structured to output a logic signal from an alternating current signal of a pair of elongated conductors. A load is switchable to the elongated conductors. A processor outputs a control signal to switch the load to the elongated conductors asynchronously with respect to the alternating current signal for a first predetermined time, inputs the logic signal, determines if the input logic signal is active a plurality of times during the first predetermined time and responsively sets a first state of the alternating current signal, and, otherwise, sets an opposite second state of the alternating current signal, and delays for a second predetermined time, which is longer than the first predetermined time, for the opposite second state before repeating the output, and, otherwise, delays for a third predetermined time, which is longer than the second predetermined time, for the first state before repeating the output.

Abstract: A power strip includes: jack portions; current meters each configured to measure a current being supplied from the corresponding jack portion to one of external electrical devices, and to output a measurement signal corresponding to a magnitude of the current; and a computing unit configured to obtain instantaneous values of the current at a plurality of time points on the basis of the measurement signal, and to calculate a power value using the instantaneous values. The computing unit configured to obtain the instantaneous values of the current by using any one of a first zero point and a second zero point as a reference.

Abstract: An energy supply network, especially for an aircraft or spacecraft, including a first coupling device, the first coupling device being configured to couple the energy supply network to an external energy source, a first high voltage direct current, HVDC, segment, the first HVDC segment being coupled to the first coupling device and a second HVDC segment, the second HVDC segment being coupled to the first coupling device. Also provided is a corresponding method and an aircraft or spacecraft incorporating such an energy supply network.

Abstract: The disclosure is related to a method, power control device and computer program product for evaluating accuracy of timing provided by time generating equipment in relation to wide area control in a power transmission system, where the wide area control is performed based on time stamped measurements of system data. The power control device can include a timing deviation handling unit that investigates timing used in relation to time based measurements, determines if the timing is reliable or not based on the investigation, and aborts wide area control if the timing is deemed unreliable.

Abstract: A power delivery system includes a rotary transformer having a primary winding and a secondary winding and configured to transfer power between stationary coupling elements on a stationary side and rotational coupling elements on a rotational side. The rotational coupling elements share a central axis with the stationary coupling elements, and are adapted to rotate with respect to the stationary coupling elements. The power delivery system includes an isolation transformer that drives the primary winding of the rotary transformer, and a plurality of power inverter stages whose outputs are adapted to be summed and coupled to the rotary transformer. A plurality of output power converters receive transmitted power from the rotary transformer. A plurality of control elements, disposed on the rotating side, are configured to close a feedback loop on desired and actual performance of the output power converters, and to control the power inverter stages.

Abstract: There is provided an energy management device that sets a priority in a plurality of electric devices when power limitation is performed, receives a status signal from a predetermined electric device that is a priority changing target, and generates a control signal configured to change the priority of the predetermined electric device to be higher based on the status signal when the power limitation is performed.

Abstract: One or more systems and/or techniques are provided for electrically coupling and/or decoupling a capacitive snubber component to/from an inverter as a function of a current in the inverter. A current sensing component may be configured to measure the current in the inverter and/or determine whether the current in the inverter exceeds a desired threshold. The desired threshold may be set at a value sufficient to reset the capacitive snubber component. When the current in the inverter is above the desired threshold, the capacitive snubber component may be coupled to the inverter. When the current in the inverter is below the desired threshold, the capacitive snubber component may be decoupled from the inverter. In this way, little to no energy stored in the capacitive snubber component may be dissipated in the inverter when the current in the inverter drops below a level sufficient to reset the capacitive snubber component.

Abstract: An inductive power transfer system includes an inductive power transmitter in the shape of a container that is capable of holding one or more electrical devices. The system is operable to transfer power inductively to devices stowed within the container via inductive power receivers. The inductive power transmitter includes at least one primary inductor configured to couple inductively with at least one secondary inductor and at least one driver configured to provide a variable electric potential at a driving frequency across said primary inductor. The inductive power receiver may comprise at least one secondary inductor connectable to a receiving circuit and an electric load, said secondary inductor configured to couple inductively with said at least one primary inductor such that power is transferred to said electric load.