Abstract: A radio frequency (RF) energy harvesting device (rectenna) includes an antenna structure configured to resonate at RF frequencies, and a rectifying circuit that facilitates harvesting multiband RF signals having low energy levels (i.e., tens of mW and below) by utilizing two Zero Bias Schottky diodes having different forward voltage and peak inverse voltage values. Positive voltage pulses from a captured RF signal generated on a first antenna end point are passed by the first diode to a first internal node where they are summed with a second RF signal generated on the second antenna end point (i.e., after being passed through a capacitor), thereby producing a first intermediate voltage having a substantially higher voltage level. Positive voltage pulses are then passed from the first internal node through the second diode to an output control circuit for conversion into a usable DC output voltage.

Abstract: Embodiments are directed to a system for transferring power wirelessly from a transmitter to a receiver, the transmitter having a transmitter processor and a transmitter antenna. The system includes the transmitter processor configured to convert electric power signals to an electromagnetic field (EMF); associate each of a plurality of keys with one of a plurality of operating frequencies, and store the plurality of keys associated with the plurality of operating frequencies in a table; select one of the plurality of operating frequencies stored in the table as an active operating frequency, wherein the active operating frequency is assigned as the current operating frequency of the transmitter antenna, and wherein the key associated with the active operating frequency is assigned as an active key; wirelessly transmit to the receiver the EMF at the active operating frequency; and wirelessly transmit to the receiver the table and an identification of the active key.

Abstract: The present invention relates to a connection system for connecting a power generator to a DC electrical power system, with a controllable voltage source unit functionally connected in series with the power generator to receive AC electrical power from the power generator, and to generate an AC electrical power output accordingly, and a rectifier arranged to receive AC electrical power output from said voltage source unit and to rectify the AC electrical power output to a DC electrical power to be provided to the DC electrical power system. The invention also relates to method for connecting a power generator to a DC electrical power system.

Abstract: An electromagnetically-coupled state detection circuit including a detection unit that measures a primary side Q value of a circuit containing a primary side coil electromagnetically coupled with a secondary side coil and power transmission efficiency to the secondary side coil, corrects the power transmission efficiency based on the Q value of the primary side coil, and detects a state of electromagnetic coupling with the secondary side coil based on an obtained corrected value of the power transmission efficiency.

Abstract: On embodiment provides an electronic apparatus including: a controller configured to perform a power management of the electronic apparatus; a battery capable of counting cycles of a charging; and a charge circuit configured to perform the charging to the battery by using DC power supplied from an AC power supply device, wherein the controller is configured to cause the charge circuit to step down a charge voltage of the battery every predetermined number of the counts.

Abstract: A lighting network includes a plurality of nodes, each having a node identifier. Each node includes a light source and a radio-frequency (RF) transceiver that transmits RF signals to and receives RF signals from other ones of the nodes. Each signal includes a data packet having a packet identifier, a destination node identifier and a payload. Each node compares the packet identifier of a received packet to a list of packets identifiers and when the packet identifier is not in the list, adds the packet identifier to the list. If the node is the destination node for the packet, the node then executes a command contained in the payload of the packet. If the node is not the destination node, the node retransmits the packet to the nodes that are within range of the RF transceiver. When the packet is in the list, the node discards the packet.

Abstract: A wirelessly powered device and operating method to aid in locating the device in relation to an energy transmitter. A device positioning aid processor places at least one component into a high electrical current consumption mode and determines, based on placing the at least one component into a high electrical current consumption mode, an amount of electrical current induced in a receiving coil that is adapted to inductively couple to a transmission coil external to the wirelessly powered device. An indicator, which is communicatively coupled to the device positioning aid processor, is configured to provide, in response to a determination of the amount of electrical current, an indication corresponding to the amount of electrical current.

Abstract: Example aspects of the present disclosure are directed to an improvement of an energy storage system. The energy storage system includes a power connector and a battery management system (BMS). The power connector includes a connector body having a first face and a second face which is disposed oppositely to the first face. A first terminal and a second terminal can be disposed on the first face. The first terminal and the second terminal can be configured to electrically couple the BMS to a positive conductor and a negative conductor to form a power connection, Moreover, a first current shunt can be disposed on the second face and electrically coupled to the first terminal, while the second current shunt can be disposed on the second face and electrically coupled to the second terminal.

Abstract: A EUT (equipment under test) positioning device is disclosed. The device comprises a holder element configured to hold EUT, a sliding element configured to move the holder element horizontally, a rotating element attached to the sliding element and configured to rotate the holder element, at least three telescopic elements attached to the rotating element and configured to independently move the holder element vertically, at least five actuators individually attached to the sliding element, the rotating element and the telescopic elements, wherein the actuators are configured to activate movement of the sliding element, the rotating element and the telescopic elements, and a position monitoring element configured to monitor the position of EUT. The holder element, the sliding element, the rotating element, and the telescopic elements comprise radio frequency transparent material.

Abstract: An apparatus for receiving wireless power is provided. The apparatus comprises a receive coupler configured to receive the wireless power from a wireless power transmitter. The apparatus comprises a receive circuit electrically connected to the receive coupler, the receive circuit configured to provide power to a load. The apparatus comprises a controller circuit configured to provide a first amount of power from the receive circuit to the load. The controller circuit is further configured to reduce the first amount of power to a second amount of power for a duration of communication with the wireless power transmitter to increase a difference between a first impedance and a second impedance of the receive circuit compared to when the first amount of power is provided to the load.

Abstract: Single or multi-axis positioning mechanisms are provided that include a caging mechanism that may be actuated without requiring axial displacement of rotational components of the positioning mechanisms. In some multi-axis positioning mechanism implementations, each rotational axis may have an associated caging mechanism that is transitioned between a caged and uncaged state using a common release device. In some implementations, the release device may be a single-use device. In other implementations, the release device may be capable of re-caging the positioning mechanism after uncaging the positioning mechanism.

Abstract: An emergency lighting system for an aircraft includes an emergency light control unit, having an external power input and at least one external control input for receiving external control commands from at least one of a cockpit crew, a cabin crew, a board computer and an autopilot, and a plurality of autonomous emergency light units, each of the plurality of autonomous emergency light units comprising at least one LED and a rechargeable capacitor. The emergency light control unit is configured to process the external control commands and to communicate emergency light control commands to the plurality of autonomous emergency light units as a response to the external control commands.

Abstract: A generator system includes an AC generator having one or more phases; a transformer having the same number of phases as the AC generator; for each phase of the AC generator, only a capacitive element receiving the current from a respective output winding of the AC generator for conveying in series to a primary winding of a respective phase of the transformer, each capacitive element having a first terminal electrically connected to the respective output winding and a second terminal electrically connected to the respective primary winding; a prime mover in driving engagement with the AC generator; and a load connected to a secondary winding of the transformer.

Abstract: The present invention relates to a distribution line, and more particularly, to a method of constructing a distribution line using an extra-high voltage neutral line combined with an overhead earth wire having a separate installation structure of the extra-high voltage neutral line and a low-voltage neutral line for improving electric power quality, in which a distribution line simultaneously perform functions of an overhead earth wire for shielding lightning, an extra-high voltage neutral line for returning unbalanced currents and fault currents and an optical communication line for establishing a communication network, such that a number of disconnections of power lines is reduced by reducing surge voltage thereby achieving excellent lightning shielding effects such as improved power quality, etc., construction costs are reduced, load is reduced, construction quality is improved, and aesthetic features of the urban area is improved by simplifying the distribution equipment.

Abstract: A dynamically configurable battery management system includes a controller system with a first processor connected to a first memory and a first wireless transceiver connected to a wireless packet network. A battery system with a second processor is connected to a second memory and a second wireless transceiver connected to the wireless packet network. One or more batteries are connected to the battery system, and the connected batteries include a battery pack. A sensor that is connected to the battery system generates a data stream that is stored in the second memory. The data stream allows for establishing a battery capability and status unique to each battery in the battery pack. The stored data stream is stored as a battery record with a universal unique identifier.

Abstract: This disclosure provides methods and apparatus for wireless power field testing. A method for generating testing the interoperability of a wireless power transmitter with one or more wireless power receivers is provided. The method includes generating a magnetic field via a transmit antenna. The method further includes measuring a first uniformity of the magnetic field at all the locations within the magnetic field on a charging surface of the wireless power transmitter. The method also includes determining that the measure first uniformity of the magnetic field is within a range of values at all locations on the charging surface of the wireless power transmitter. In some implementations, the method further includes applying a load to the magnetic field, measuring a second uniformity of the magnetic field while the load is applied, and determining if the first uniformity of the magnetic field is substantially similar to the second uniformity.

Abstract: A method includes receiving currents supplied by a power generation apparatus, distributing the currents supplied by the power generation apparatus to a load and a lithium ion battery to ensure normal running of the load and enable the lithium ion battery to be charged. After the lithium ion battery is fully charge, the currents supplied by the power generation apparatus are distributed to the lead acid battery so that the lead acid battery is charged.

Abstract: A personal portable power distribution apparatus including a portable central power source, a power management module coupled to receive power from the central power source, and a harness assembly having at least one power supply node for distributing power from the power management module, wherein the power management module is operable to control supply of power through each individual power supply node, each power supply node terminating in a like connector, and an adaptor module is fitted to a power input terminal of an electronic accessory device to adapt the device for operation with the power distribution apparatus by providing a corresponding connector suitable for interconnection with said like connector(s).

Abstract: The invention relates to a bidirectional multi-level DC/DC converter and its non-linear control, adapted to transfer power between at least one energy source and an electricity distribution network.

Abstract: A first communication device is connected in a conductive state to a first power line extending from a secondary side of a transformer in a high-voltage power receiving apparatus to a primary side of breakers in a plurality of distribution boards that receive power supply from the transformer. A plurality of second communication devices are respectively connected to a plurality of second power lines respectively extending from a secondary side of the breakers in the plurality of distribution boards. Each second communication device performs power line communication using the second power line connected thereto as a transmission path. Upon receipt of a communication signal, each of the first communication device and the plurality of second communication devices generates a new communication signal including information included in the communication signal and sends the new communication signal through power line communication.

Abstract: A wireless docking station (100) for docking with a wireless mobile device (120), the wireless docking station including: a platform (110) for docking with the wireless mobile device (120); an interface (230) to a radio; a plurality of antennas (221, 222, 223, 224, 225); an antenna switch (220); a signal sensor (210); and a control unit (240); wherein the control unit (240) controls the antenna switch (220) to connect one of the plurality of antennas (221, 222, 223, 224, 225) to the interface (230) based on signals transmitted from the docked wireless device and detected by the signal sensor (210).

Abstract: System and methods for floating dockside liquefaction of natural gas are described. A system for floating dockside liquefaction of natural gas comprises a natural gas pretreatment facility located onshore proximate a dock, wherein the natural gas pretreatment facility is configured to process pipeline quality gas into pretreated natural gas, a floating liquefaction unit moored at the dock, wherein the floating liquefaction unit further comprises a natural gas liquefaction module on a deck, and an LNG storage tank for storing produced LNG below the deck, a pipeline coupling the onshore pretreatment facility to the dock, wherein the pipeline is configured to transport pretreated natural gas onto the dock, and a high pressure gas arm fluidly coupling the pipeline to the floating liquefaction unit, wherein the gas arm is configured to transfer pretreated natural gas to the floating liquefaction unit.

Abstract: A method of providing an amount of exposure to electromagnetic waves, and a user terminal are provided. The method may include receiving a signal of each of a plurality of wireless services, extracting a measured electric field and a reference level of electric field strength from a signal associated with each of the plurality of wireless services, and determining an exposure index of each of the plurality of wireless services, based on the measured electric field and the reference level of electric field strength, the exposure index being measured outside a body of a user.

Abstract: A mobile device includes a housing and an antenna. The mobile device further includes a power-receiving circuit, and power-transmitting circuit, and a short-range communications circuit. The antenna performs multiple functions in that it is shared by the power-receiving circuit, the power-transmitting circuit and the short-range communications circuit. Each of the three circuits is selectively connectable to the antenna. The mobile device is configured to participate in a mobile-to-mobile battery-charge-sharing operation via inductive coupling from mobile device to mobile device.

Abstract: A method of communication over a composite cable having a plurality of conductors, the method including placing an inductive coupler around the composite cable, coupling the composite cable to a signal input or output using the inductive coupler around the composite cable to communicate a signal to or from the composite cable, wherein the signal is communicated across the composite cable from a first location to a second location, wherein the inductive coupler is at one of the first location and the second location.

Abstract: A system for coupling electrical power subsea. The system comprises a subsea electrical distribution system having at least one modular circuit breaker assembly. The modular circuit breaker assembly may receive power from one or both of a subsea AC power cable and a subsea DC power cable. If power is lost from one subsea power cable, the modular circuit breaker assembly enables power to be provided to subsea loads from the other subsea power cable. The system comprises a subsea motor operable to drive a subsea pump or compressor.

Abstract: A peak junction temperature monitoring system for a semiconductor device includes a peak power dissipation sensor for sensing the peak power dissipation in the device. A temperature sensor senses an average temperature of the device, and a peak junction temperature computation circuit generates a signal representative of a peak junction temperature based on input from the peak power dissipation sensor and the temperature sensor.

Abstract: A first device may have a processor and a power management system configured to receive a request from a second device. The first device may receive attribute data from the second device and compare the attribute data of the second device to attribute data of the first device. The first device may then determine whether the second device is a qualifying device based on the comparison and it may also determine a power transfer mode of the first device based on whether the device is a qualifying device and on the attribute data of the first and second device.

Abstract: A device for producing x-rays includes: a housing that includes a folded high-voltage multiplier coupled to a filament transformer, the transformer coupled to an x-ray tube for producing the x-rays. A method of fabrication and an x-ray source are disclosed.

Abstract: An integrated galvanically isolated meter devices and method for making integrated meter devices are disclosed. An embodiment of an integrated meter device includes a carrier, a control chip disposed on the carrier, a first measuring device chip disposed on the carrier, the first measuring device chip galvanically isolated from the control chip and configured to measure at least one first parameter of a first wire of a power line and a package encapsulating the control chip and the first measuring device chip.

Abstract: An electrical energy transmission system has a three-phase electric current power source which generates a three-phase electric current having three electric currents, a converting device which converts the three-phase electric current to obtain a common electric current signal formed by summation of three electric currents having the same phases, and a single-line electrical transmission line which transmits further the thusly produced common electric current signal.

Abstract: A barrier for providing defense against attack from airborne cruise missiles includes a buoyant lighter than air structure. A curtain is suspended from structure and depends from the structure to a level approximately even with the surface. The barrier is deployed across a path identified as a potential attack path for an incoming threat. An incoming missile strikes the curtain which is adapted such that at least a portion of the curtain separates from the barrier and envelopes or entangles the incoming missile. The portion of the curtain covers the flight control planes of the missile and deprives the missile of lift. The missile falls to the surface short of its intended target. The intended target may be a ship which may deploy the barrier at a selected distance from the ship along a determined path of attack.

Abstract: Subject matter disclosed herein relates to distribution of electrical energy, and more particularly to distribution of solar electric energy at or near particular power points of solar cells.

Abstract: A super capacitor (SC) and methods are disclosed, forming massive embedded capacitors connected in parallel over very wide radii varying from a few square feet to hundreds of square miles. The SC is enclosed within a water proof housing to keep out water by depositing a plurality of alternating layers of dielectric material between each conducting layer, whereby one or more electrodes are situated on each dielectric layer, and having at least one probe electrode exuding from said housing, and connected to the one or more electrodes, for receiving electric charge from a lightning source, for example. The dielectric layers separating each conducting layer may vary from a few layers to thousands, and possibly even millions or more layers, for example, to define a multilayer capacitive structure capable of providing electric power to supplement or replace other sources of electric power that harm the environment.

Abstract: Systems, methods and apparatus for harvesting atmospheric electricity are provided. The system includes a laser configured to form a plasma filament and a collector configured to collect electricity flowing along the plasma filament. The plasma filament comprises an electrically conducting plasma filament. Atmospheric electricity may be collected by having the plasma filament form at least a part of a conducting path: (1) between ground and a cloud, (2) between differently charged regions of the same cloud, (3) between differently charged regions of different clouds, and (4) between different regions of atmosphere, where there is a vertical voltage gradient. When the plasma filament is not long enough to form the entire conducting path, a lightning may be triggered to complete the conducting path needed to collect atmospheric electricity.

Abstract: A battery charger voltage control method dynamically adjusts the system voltage generated by a battery charger circuit based on the operating conditions to ensure that sufficient power is supplied to power up the circuitry of the electronic device when the battery charger circuit is connected to a current-limited power source and the battery of the electronic device is deeply depleted or is missing. In embodiments of the present invention, the battery charger voltage control method sets the system voltage to an elevated voltage value to maximize the energy transfer from the power source to the circuitry of the electronic device. In this manner, the battery charger voltage control method enables a near instant boot-up of the electronic device, even under the operating conditions where the battery of the electronic device is deeply depleted or missing and the switching battery charger circuit can only receive power from a current-limited power source.

Abstract: A wireless power transmission method of a wireless power transmitter for transmitting power to a wireless power receiver, according to the embodiment includes transmitting a connection signal for identifying the wireless power receiver; identifying the wireless power receiver by receiving a response signal to the connection signal from the wireless power receiver; negotiating a power transmission condition with the identified wireless power receiver; and transmitting the power to the identified wireless power receiver according to the negotiated power transmission condition.

Abstract: A wireless power transmission system, a method and an apparatus for tracking a resonance frequency in the wireless power transmission system, are provided. A device of the wireless power transmission system includes a resonator configured to receive and output a power from another resonator of another device. The device further includes a power supply unit configured to provide, to a device load, the power output from the resonator. The device further includes a calibration load configured to receive the power output from the resonator in a calibration mode of the device to match resonance frequencies of the resonator and the other resonator. The device further includes a controller configured to selectively connect the resonator to the power supply unit or the calibration load, based on whether the device operates in the calibration mode.

Abstract: A method of signaling between a photovoltaic module and an inverter module. The inverter module is connected to the photovoltaic module. In an initial mode of operation an initial code is modulated thereby producing an initial signal. The initial signal is transmitted from the inverter module to the photovoltaic module. The initial signal is received by the photovoltaic module. The operating mode is then changed to a normal mode of power conversion, and during the normal mode of operation a control signal is transmitted from the inverter to the photovoltaic module. A control code is demodulated and received from the control signal. The control code is compared with the initial code producing a comparison. The control command of the control signal is validated as a valid control command from the inverter module with the control command only acted upon when the comparison is a positive comparison.

Abstract: A power transmission apparatus includes a power transmission device having a power transmission amount detecting unit that transmits power and detects a power transmission amount, a power transmission device communication unit that communicates with a power reception device, and a power transmission device controller that calculates power transmission efficiency from the power transmission amount and a power reception amount and stops transmitting power if it is determined that a relationship between the power transmission amount and the power transmission efficiency lies out of an operable region, and the power reception device having a power reception amount detecting unit that receives power from the power transmission device and detects the power reception amount, a power reception device communication unit that communicates with the power transmission device, and a power reception device controller that transmits the power reception amount to the power transmission device via the power reception device c

Abstract: A method, and a VSAT capable of being configured for such a method, of configuring a VSAT, the steps of which are setting, while an outdoor unit of the VSAT is at a configuration location, a maximum value of the adjustable gain of the up-converting device and transmitting, from an operating location that is separate from the configuration location, transmission signals to the satellite at the transmission frequency and with a gain value of at most the maximum value of the adjustable gain set at the configuration location.

Abstract: A rectifying circuit includes, in part, first and second NMOS transistors, an impedance matching network, and an RF block circuit. The source and gate terminals of the first NMOS transistor respectively receive the ground potential and a biasing voltage. The second NMOS transistor has a gate terminal coupled to the drain terminal of the first NMOS transistor, a drain terminal coupled to the gate terminal of the first NMOS transistor, and a source terminal receiving the ground potential. The impedance matching network is disposed between the antenna and the drain terminals of the first and second NMOS transistors. The RF block circuit is coupled between the drain terminals of the first and second NMOS transistors and the output terminal of the rectifying circuit. The RF block circuit is adapted to prevent the RF signal from flowing into the output terminal of the rectifying circuit.

Abstract: A direct feeding apparatus for impedance matching of a wireless power transmission device includes a helical type resonator, and a feeding unit configured to directly feed power to a region having a relatively small current value as compared to a center of a conductive line of the resonator.

Abstract: According to the present embodiment, the power feeding apparatus configured to feed power by electric field coupling to a power receiving apparatus having a first and a second electrodes for receiving power arranged along a mounting surface and a protrusion arranged on the mounting surface side includes a power feeder divided into a plurality of small regions having a small electrode respectively, the power receiving apparatus being mounted on the small regions, and a control module configured to supply power to the small electrodes corresponding to the first and second electrodes, wherein the small region in contact with the protrusion sinks when the power receiving apparatus is mounted, and the small region returns to an original position when the power receiving apparatus is removed.

Abstract: An internal voltage generation circuit includes a plurality of active driving units configured to supply a plurality of active power supply voltages to a plurality of voltage terminals, respectively, in an active mode, and a common standby driving unit configured to commonly supply a standby power supply voltage to the plurality of voltage terminals in a standby mode.

Abstract: An SNMP network comprises a power manager with an SNMP agent in TCP/IP communication over a network with an SNMP network manager. The power manager is connected to control several intelligent power modules each able to independently control the power on/off status of several network appliances. Power-on and load sensors within each intelligent power module are able to report the power status of each network appliance to the SNMP network manager with MIB variables in response to GET commands. Each intelligent power module is equipped with an output that is connected to cause an interrupt signal to the network appliance being controlled. The SNMP network manager is able to test which network appliance is actually responding before any cycling of the power to the corresponding appliance is tried.

Abstract: The present invention relates to modular portable energy systems, specifically solar energy systems or kits. In a first embodiment, a personal solar kit is provided. A portable shelter system with power generation capabilities is provided in a second embodiment. In a third embodiment, alternative power generation systems are provided. A multi-layered solar power generation device is provided in a fourth embodiment. In a fifth embodiment an energy network system is provided that can be used with any of the previous embodiments of the present invention.

Abstract: A power feeding apparatus, power receiving apparatus, wireless power feeding system, and method for wireless transfer of power are provided. The power feeding apparatus includes an impedance detector, a controller, a power transmitter, a variable matching circuit, and a signal transmitter. The controller is configured to provide first control information and second control information based on an impedance detected by the impedance detector. The power feeding apparatus' variable matching circuit is configured to change a variable diameter of a power feeding coil according to the first control information. The power receiving apparatus includes a power receiver, a signal receiver, and a variable matching circuit. The power receiving apparatus'variable matching circuit is configured to change a variable diameter of a power feeding coil according to the second control information provided by the power feeding apparatus.

Abstract: A power feeding unit includes: a power feeding electrode configured to be coupled through an electric field with a power receiving electrode of a power receiving unit; a power feeding section configured to feed the power receiving unit with power through the power feeding electrode; and a power feeding side communication section configured to communicate with the power receiving unit through the power feeding electrode.

Abstract: A power transmission system that includes a power transmitting device and a power receiving device. The power transmitting device includes a high-frequency voltage generator, a piezoelectric resonator, a power transmitting device side passive electrode, and a power transmitting device side active electrode. The power receiving device includes a piezoelectric resonator, a load, a power receiving device side passive electrode, and a power receiving device side active electrode. The active electrode of the power transmitting device and the active electrode of the power receiving device are in proximity with each other, whereby the power transmitting device and the power receiving device are capacitively coupled through the active electrodes and the surrounding dielectric medium.