Abstract: A long travel cable carrier guide has a plurality of guideposts that support an upper portion of a cable carrier. The plurality of guideposts include horizontal rollers that rotate to allow the cable carrier to pass by the guideposts, but automatically return to a resting position wherein the horizontal rollers protrude into the path of the cable carrier.

Abstract: A low point raceway fitting for draining accumulated condensation from electrical raceway systems installed in industrial, commercial and residential facilities. The drain fitting is a tubular member having a throughbore for pulling wire, connecting ends for installation in a raceway system, and an enlarged section between the ends profiled for engagement by a tool for installation. A drain passage is formed radially through the tool engaging section and is positioned at the underside of the horizontal fitting for gravity drainage. A screen insert can be placed in the drain passage to keep dirt and insects out.

Abstract: The invention relates to a system for sealingly holding cables through an opening. The system comprises a holder substantially in the form of a plate having a central portion with a first thickness between a first side and a second side of the plate and a peripheral portion with a second thickness which is smaller than the first thickness, the holder having in the central portion a plurality of conduits extending in the thickness direction of the plate, each conduit being suitable for having one or more cables extending there through, at least one multi-part sealing plug of an elastic material for sealing an annular space between an inner wall of one of the conduits and a cable extending there through and a gasket of an elastic material and of a shape for placement against the peripheral portion so as to provide a sealing in a circumferential direction of the plate. The plug has at least one circumferentially extending outer rib and at least one circumferentially extending inner rib.

Abstract: This invention has to do with a locking cable hanger assembly system for the solar, mining, and electrical industry. The locking cable hanger assembly is comprised of a new wire locking mechanism, new multiple cable carrier saddles on one hanger, data carrier wire capability, and optional high dielectric, UV coated material.

Abstract: Ocean floating installations (1) are disposed on the ocean. The ocean floating installations (1) float on the ocean with the lower part of the ocean floating installations (1) being fixed to the seabed by mooring ropes (11). Each of the ocean floating installations (1) is connected at a connection part (5a) to a cable (3), which is a first cable. Each of the cables (3) is connected at a connection part (5b) to a cable (7), which is a second cable. In other words, the ocean floating installations (1) are connected to each other by the cables (3) and the cable (7). A connection is established with the cables (7) at the connection parts (5b) located on the seabed. In other words, the cables (7) are installed on the seabed.

Abstract: A cable handling assembly is adapted to store and pay-out a telecommunications cable. The assembly includes first and second sets of pulleys, a housing, and a cable route. The first and second sets of pulleys are spaced from each other by a take-up distance that decreases upon the cable being paid-out. The housing supports the pulleys and also guides the pulleys as the take-up distance changes. The cable route is routed between the first and second sets of pulleys. A stack of pulley sets may be formed and may include at least one intermediate pulley set positioned between the first and second pulley sets. The cable route is routed between adjacent pulley sets of the stack of pulley sets. A route length decreases as the take-up distance decreases. A rack unit for organizing a plurality of telecommunications cables in a telecommunications rack may include a plurality of the cable handling assemblies.

Abstract: An apparatus includes an energy storage module that receives power from an AC power source. The energy storage module is sized to store electrical energy received from the AC power source that is sufficient to open one or more contacts when the AC power source is not present. The contacts disconnect electrical power to a load and the electrical energy is stored in a DC energy storage device. A connection module connects the energy storage device in series with a trip contact, a trip circuit, and an auxiliary contact. The trip contact closes in response to a trip signal. The trip circuit disconnects the one or more contacts in response to being energized, and the auxiliary contact opens in response to opening of the one or more contacts and disconnects power to the trip circuit. A disconnect module periodically disconnects electrical power from the trip circuit and the auxiliary contact.

Abstract: A selectivity module for dividing a load current in an installation system includes a housing, a plurality of branches in the housing, a plurality of switching devices, and a control unit. Each of the plurality of switching devices is configured for switching a branch current on and off in a corresponding one of the plurality of branches. The plurality of switching devices serves to output information about corresponding switching states. The control unit is connected to the plurality of switching devices and configured to output a status signal as a function of the output information from the plurality of switching devices. The output information relating to the individual switching states of all of the plurality of switching devices is contained in the status signal in a serial encoded form.

Abstract: A burning protection circuit of a display device includes a plurality of current measuring units and a control unit. The display device includes a plurality of pixel blocks. Each of the pixel blocks includes a plurality of pixels. The pixel blocks are respectively supplied with power through a plurality of power supply lines. The current measuring units are configured to respectively generate a plurality of measured current values by respectively measuring a plurality of currents respectively supplied to the pixel blocks through the power supply lines. The control unit is configured to respectively generate a plurality of block data for the pixel blocks based on pixel data for the pixels of corresponding ones of the pixel blocks, and determine whether an overcurrent occurs based on a plurality of ratios of the measured current values to corresponding ones of the block data.

Abstract: The present provides a secondary power system and a power supply device. The secondary power system is used for supplying power for a load equipment, and comprises: a fuse circuit, a filter circuit, a convertor circuit and an over-voltage and under-voltage protection circuit, wherein, the fuse circuit, the filter circuit, the over-voltage and under-voltage protection circuit and the convertor circuit are sequentially connected in series; the over-voltage and under-voltage protection circuit is configured to cut off power supplied to the convertor circuit when power supplied by the primary power source is an under-voltage or over-voltage; the convertor circuit is configured to convert the primary power source into a secondary power source. The secondary power system, by providing an over-voltage and under-voltage protection circuit, can not only lower the cost of the convertor circuit, but also save the space occupied by the convertor circuit.

Abstract: A power distribution unit that switches off power outlets in the event of an over-current condition by using circuitry that measures how long input current has exceeded a threshold and sending a reset signal to the power outlets when input current has exceeded the threshold for a predetermined time duration.

Abstract: A ground-resistance detection device, which is coupled to a power system including a first power line, a second power line, and a protective earth, includes a ground-resistance detection circuit and a controller. The ground-resistance detection circuit includes a first input node and a second input node. The first input node is coupled to either the first power line or the second power line. The second input node is coupled to a ground terminal. The ground-resistance detection circuit generates a DC output voltage according to the voltage of the first input node, the voltage of the second input node, and the DC reference voltage. The controller determines the ground resistance between the protective earth and the ground terminal according to the DC reference voltage and the DC output voltage.

Abstract: A method includes supplying power from a power supply to a first electrical circuit breaker. The method includes detecting whether at least one of a current and a voltage of the power has exceeded an operating threshold for the first electrical circuit. The method includes, in response to detecting that at least one of the current and the voltage of the power has exceeded the operating threshold for the first electrical circuit, shutting off the power supply and the first electrical circuit breaker. The method includes in response to detecting that at least one of the current and the voltage of the power has not exceeded the operating threshold for the first electrical circuit, supplying the power from the power supply to the second electrical circuit breaker that is electrically coupled to the second electrical circuit.

Abstract: A safety device for an actuator that can modulate power to an electric motor in response to a fault condition (e.g., stall). In one embodiment, the actuator can include a motor with a shaft, a sensor disposed in proximity to the shaft, and a control processor coupled with the sensor and the motor. The control processor can be configured to receive a signal from the sensor that conveys operating data that relates to rotation of the shaft, use the operating data to identify a fault condition on the motor, and change the motor from an energized condition to a de-energized condition in response to the fault condition.

Abstract: According to an embodiment, a power generation system is provided comprising a power generator; a plurality of converter modules, each converter module having a DC link, wherein the DC link of each converter module is connected to the DC links of the other converter modules of the plurality of converter modules via a fuse associated with the converter module; and a controller configured to, if it is detected that there is a fault in one of the converter modules, disconnect the converter module in which there is a fault from the power generator and connect two or more other converters module of the plurality of converter modules to the power generator and to control the power generation system to supply power to the DC links of the two or more other converter modules such that power is supplied to the converter module in which there is a fault via the fuse associated with the converter module such that the fuse associated with the converter module melts.

Abstract: A transmission circuit including four transmission component sets for Ethernet is provided. For each of the transmission component sets, a first capacitor and a first inductor are cascaded, the first inductor is coupled to the Ethernet connector via the first transmission line (TL), the first capacitor is coupled to the Ethernet chip via the second TL; a second capacitor and a second inductor are cascaded, the second inductor is coupled to the Ethernet connector via the third TL, the second capacitor is coupled to the Ethernet chip via the fourth TL; a first component set is coupled between a first contact and a second contact, the first contact is located between the first capacitor and the first inductor, and the second contact is located between the second capacitor and the second inductor; and a second component set is coupled between the second TL and the fourth TL.

Abstract: Disclosed is a complex protection device including a substrate, fuse terminals provided on the substrate, first resistive terminals provided on the substrate so as to be separated from the fuse terminals, second resistive terminals provided on the substrate opposite to the first resistive terminals across the fuse terminals, a fusible element connected to the fuse terminals, a first surface-mounted resistive element connected to the first resistive terminals, a second surface-mounted resistive element connected to the second resistive terminals, at least one printed resistive element connected to at least one of the first resistive terminals and the second resistive terminals and connected to at least one of the first surface-mounted resistive element and the second surface-mounted resistive element, and a switching element controlling flow of current to the first and second surface-mounted resistive elements and the at least one printed resistive element if overvoltage is applied.

Abstract: An electrostatic discharge protection circuit comprises at least two electrostatic discharge protection units connected in series between respective pairs of at least three input terminals, one of the input terminals being a reference input terminal. Each of the units comprises a silicon controlled rectifier and a current mirror. The output of the silicon controlled rectifier constitutes a first output of the respective unit and is connected to an input terminal of the circuit. The output of the current mirror constitutes a second output of the respective unit and is connected with the reference input terminal of the circuit. Thus the units are connected in series but the output terminals of the current mirrors are all connected with the reference input terminal, which may be a ground terminal, so as to minimize the breakdown resistance of the circuit.

Abstract: Advances in the arts are disclosed with novel methods and circuit systems for controlling power in an energy harvesting system. Techniques and related systems for controlling power output of an energy harvesting device provide for monitoring at least one power parameter at a power source and monitoring at least one power parameter at a load such as a storage medium. The power source output is adjusted in order to optimize energy harvesting and/or storage based on real-time performance parameters.

Abstract: Various embodiments of a DC plant controller and methods of selecting among multiple power sources. In one embodiment, the DC plant controller includes: (1) a source identifier configured to identify power sources couplable to a common DC bus, (2) a source prioritizer coupled to the source identifier and configured to prioritize the power sources based on at least one criterion, (3) an output characteristic assigner coupled to the source prioritizer and configured to place ones of the power sources on standby based on a calculated battery holdup time.

Abstract: Various embodiments of a DC plant. In one embodiment, the DC plant includes (1) power sources couplable to a common DC bus, (2) rectifiers and DC-DC converters associated with the power sources and (3) a DC plant controller. The DC plant controller includes a source identifier configured to identify the power sources, a source prioritizer coupled to the source identifier and configured to prioritize the power sources based on at least one criterion, and an output characteristic assigner coupled to the source prioritizer.

Abstract: We describe a modular adjustable power factor renewable energy inverter system. The system comprises a plurality of inverter modules having a switched capacitor across its ac power output, a power measurement system coupled to a communication interface, and a power factor controller to control switching of the capacitor. A system controller receives power data from each inverter module, sums the net level of ac power from each inverter, determines a number of said capacitors to switch based on the sum, and sends control data to an appropriate number of the inverter modules to switch the determined number of capacitors into/out of said parallel connection across their respective ac power outputs.

Abstract: A system (0) includes an electrical load system (54) with a load network battery (82), and a fuel cell system (1). Operation is simplified, especially during start of the fuel cell system (1) if the fuel cell system (1) has a system battery (56). A system voltage across the system battery (56) can be supplied to electrical system loads (80) of the fuel cell system (1) and, via a load voltage converter (77) and at least one additional voltage converter (86), to the load system (54) and secondary electrical loads (84, 85).

Abstract: In operating an inverter including input connectors, (i) to which strings of photovoltaic cells are connected, (ii) each of which is connected via a DC/DC converter to a common DC voltage link, and (iii) which are bridgeable, the partial powers flowing through the individual DC/DC converters are determined, and for some time at least two DC/DC converters are either operated with the aim of balancing the partial currents flowing through them or connected through. During this operation or connecting through, the partial powers flowing through the at least two DC/DC converters are compared with each other, and if a difference between the partial powers exceeds a threshold value, the DC/DC converters are subsequently operated in a way adjusted to the fact that they connect different strings to the DC voltage link.

Abstract: A hybrid energy system includes a (GTG) configured to provide a full-load power output and a storage device configured to store energy. The hybrid energy system includes a generator step-up transformer, wherein the GTG and the storage device are electrically co-located on a low side of the generator step-up transformer.

Abstract: A system connected to an AC power grid having an AC phase signal includes an inverter module including a first inverter coupled to a DC voltage, actuated based on the AC phase signal. The first inverter provides a first voltage signal having predetermined harmonic components. A second inverter includes second switch elements coupled to the DC voltage and actuated by a second set of control signals phase delayed with respect to the first control signals. A transformer module has first and second primary windings coupled to the first and second inverters. The transformer module further includes a secondary winding coupled to first primary winding, the second primary winding, and the AC power grid. The secondary winding is configured to provide a secondary output voltage to the AC power grid by combining the first voltage signal and the second voltage signal such that the predetermined harmonic components are substantially cancelled.

Abstract: Methods and systems are provided to power an appliance coupled to a data connection port, the data connection port having an independent power supply separate from the power grid and being coupled to the appliance via a coupling, wherein the appliance is powered by the independent power supply via the coupling. Methods and systems are provided to power an appliance coupled to an Ethernet port via a Category 5 cable, the appliance being powered via an independent power supply of the Ethernet port via the Category 5 cable, the independent power supply being separate from the power grid.

Abstract: Power delivery of an image modality system for transferring power from a transmission unit (e.g., stationary unit) to a reception unit (e.g., a moving and/or rotating unit). A modulated electric signal comprising at least two modulated characteristics (e.g., such as amplitude and frequency) is configured to (e.g., concurrently) supply power to both high voltage and lower voltage components (216, 222) of the reception unit. An auxiliary component (316) is configured to utilize a first of the modulated characteristics (e.g., amplitude) to adjust/regulate a voltage applied to the lower voltage component (s), and a filter component (324) (e.g., such as a frequency selective circuit) is configured to utilize a second of the modulated characteristics (e.g., frequency) to adjust/regulate a voltage applied to the high voltage component (s).

Abstract: A method for analyzing a user load in conjunction with time information and a system thereof are provided. In the case that an enterprise operates in a non-full-time operational mode, operation periods of the enterprise are adjusted, electricity prices for respective adjusted operation periods are obtained, and the electricity prices are multiplied with electricity consumptions to obtain electricity charges of the enterprise. In the case that the enterprise operates in a full-time operational mode, electricity consumptions in respective hours of the enterprise are adjusted, the electricity consumptions are multiplied with electricity prices for the respective hours to obtain electricity charges of the respective hours of the enterprise, and the electricity charges of the respective hours are accumulated to obtain a total electricity charge of the enterprise.

Abstract: In the specimen processing system in which each of a specimen input portion which inputs a specimen, a specimen processing portion which processes the specimen, a specimen recovery portion which recovers the processed specimen, and a specimen transporting line which transports the specimen between the specimen input portion, the specimen processing portion, and the specimen recovery portion, are connected to each other by a plurality of processing (analysis) units, the processing (analysis) unit is provided with a CPU that controls the operation, and provided with a mechanism control portion which receives an electric signal from the CPU and operates the mechanism parts in the processing unit, and the mechanism part control portion includes means which can supply and stop the power of one or more arbitrarily specified mechanism parts by the electric signal from the CPU.

Abstract: A contactless power supplying system includes a contactless power supplying device provided with a high-frequency inverter and a primary coil and an electric appliance provided with a secondary coil and a power receiving circuit that supplies induced electromotive force generated by the secondary coil to a load. The system further includes a structure having a variable shape and adapted to be independently secured, and at least one of a connecting wire for connecting the primary coil to the high-frequency inverter, a connecting wire for connecting the secondary coil to the power receiving circuit, and a connecting wire for connecting the power receiving circuit to the load. The at least one of the connecting wires is arranged along the structure. The secondary coil is spatially positioned with respect to the primary coil depending on the shape of the structure.

Abstract: A power transmitting device includes power transmitting coils, which contactlessly transmit electric power to a power receiving coil, and a switching device. When the power receiving coil is a solenoid coil, the switching device connects the power transmitting coils in parallel with each other such that magnetic fluxes generated inside the power transmitting coils flowing in the same direction along a winding axis. When the power receiving coil is a circular coil, the switching device connects the power transmitting coils in series with each other such that magnetic fluxes generated inside the power transmitting coils flowing in opposite directions along the winding axis.

Abstract: A wireless power transfer system comprising a wireless power transmitting apparatus and a plurality of wireless power receiving apparatuses, the wireless power transmitting apparatus comprising: a power transmitting unit adapted to transmit power to the wireless power receiving apparatus; a recognition unit adapted to recognize the wireless power receiving apparatus; and a transmitting unit adapted to transmit predetermined charging delay information according to a recognition result of the recognition unit to the wireless power receiving apparatus recognized by the recognition unit, and the wireless power receiving apparatus comprising: a power receiving unit adapted to receive power transmitted from the power transmitting unit; a receiving unit adapted to receive the predetermined charging delay information transmitted from the transmitting unit; and a display unit adapted to make a display based on the predetermined charging delay information received by the receiving unit.

Abstract: Disclosed is a battery charge balancing device which includes: a charge-measuring unit that measures charge of a plurality of batteries storing power through a plurality of power converters connected with a plurality of input power sources; a mode-conversion parameter calculating unit that calculates mode conversion parameters for determining mode conversion such that the power converters operate in a power conversion mode for converting power or in a balancing mode for balancing charge between the batteries; and a control unit that controls power transmission path of the power converters by switching a plurality of switches connected between the power converters and the batteries in accordance with the calculated mode conversion parameters.

Abstract: A method for equalizing capacities of electric storage devices that are connected in series in an electric storage device assembly charged and discharged by a charger/discharger includes charging/discharging the electric storage device assembly at a charging/discharging rate of 1 C or lower, individually measuring voltages of the electric storage devices, respectively, determining whether a time rate of change in voltage of one electric storage device of the electric storage devices has reached a time-rate-of-change reference value and then a time rate of change in voltage of another electric storage device of the electric storage devices has reached the time-rate-of-change reference value, and individually discharging, based on a determining result, the electric storage device by a discharging circuit provided separately from the discharger.

Abstract: Provided are balancing device and method which can achieve a balancing function between energy storage units connected in series using a small number of switch elements, thereby reducing the manufacturing cost and size and enabling various balancing modes. The balancing device for balancing between a plurality of energy storage units a battery module, in which the energy storage units are connected in series, includes: a transformer; and a switch network comparing a cell switch unit, a polarity switch unit, and au auxiliary switch unit, wherein the auxiliary switch unit includes: a first auxiliary switch unit for connecting a second common node to one terminal of the secondary winding of the transformer; and a second auxiliary switch unit for connecting a first common node to the other terminal of the secondary winding of the transformer.

Abstract: The present teachings provide for an electrical connector including a first housing, power terminals, and first and second shunts. The terminals and shunts are located within a cavity of defined by the first housing. The first housing is configured to mate with a second housing to transfer power between a power storage device and components of an electric or hybrid electric vehicle. The first shunt is configured to complete an interlock circuit. The second shunt is configured to complete a service disconnect circuit. The interlock circuit prevents the transfer of power between the first and second housings when the circuit is broken and allows it when complete. The service disconnect circuit causes the power storage device to be substantially electrically isolated from the rest of the vehicle when the circuit is broken.

Abstract: Disclosed is a bag with a built in charger for portable electronic devices. The bag includes an interior compartment that is disposed between an interior lining and an exterior of the bag. The interior compartment is adapted to hold a battery unit, which is removably connected to a charging cable and a retractable power cable. The charging cable can be connected to the battery unit via a USB connection, and is adapted to connect to a portable electronic device via a mobile device connection. The retractable power cable can be extended out of the interior compartment through a side opening, and can connect to an electrical outlet via a plug. An electrical connection between the electrical outlet and the plug supplies energy to the battery unit. The energy stored in the battery unit can be used to charge the portable electronic device when an electrical outlet is not readily accessible.

Abstract: An object holder adapted to hold a wide variety of objects including beverage holders such as cups, bottles, mugs, and tumblers; electronic devices such as mobile phones and tablets; remote controls; eating and writing utensils; and books. The device preferably includes a base, an upright extending upward from the base, and a receiver near the top of the upright. The receiver preferably includes an object holder which is preferably made detachable so that it may be washed in a dishwasher. The height of the receiver with respect to the base is adjustable in the present invention. The rotation of the receiver with respect to the base is preferably also made adjustable. The adjustment mechanism may preferably be activated using only one hand.

Abstract: A hand tool battery includes a charging coil and a bridge rectifier. The bridge rectifier has at least two rectifying arrangements for synchronous rectification.

Abstract: An embodiment of the present invention relates to a vehicle. The vehicle includes an energy storage device and a traction motor electrically connected to the energy storage device. The traction motor is configured to convert electrical energy supplied by the energy storage device into a mechanical output to propel the vehicle. The vehicle also includes a vehicle connecting mechanism electrically coupled to the energy storage device and being configured for electrical coupling with a second vehicle connecting mechanism of a second vehicle to establish an electrical interface between the vehicle and the second vehicle. The electrical interface enables the transfer of electric power between the vehicle and the second vehicle.

Abstract: There is a request for charging and discharging of a lithium-ion battery with as less degradation as possible. In an operation using only binary values as in conventional technology, however, in a charged state in which the battery is used, there is a high possibility that the battery is used toward accelerating the degradation thereof. In a power distribution device for distributing power between a plurality of batteries and a plurality of customers, when distributing the power of the batteries to the loads of the customers, by being based at least on the degradation information of the batteries, the state of charge, and the temperature data of the batteries, a battery discharging function is achieved that makes the degradation of the batteries minimum.

Abstract: An electronic device includes a platform controller hub and a charging interface. The charging interface includes a connector for coupling to a peripheral device, and a charging integrated circuit coupled to the connector. The connector includes an insert detecting member for detecting if the peripheral device is inserted. The charging integrated circuit can provide power to the connector. The platform controller hub can exchange data through the connector through the charging integrated circuit. The charging integrated circuit can cut off the power to the connector when the insert detecting member detects that no peripheral device is inserted in the connector.

Abstract: A hybrid energy storage system (HESS) and method of controlling a HESS is provided. The HESS comprises a common direct current (DC) bus having a DC bus voltage, an energy storage device electrically coupled to the common DC bus, a power device electrically coupled to the common DC bus, and a controller in operable communication with the energy storage device, the power device and the common DC bus. The controller is configured to, when the energy storage device is charging, increase a power device charging current if an energy storage device charging current is greater than a charging limit for the energy storage device, and when the energy storage device is discharging, increase a power device discharging current if an energy storage device discharging current is greater than a discharging limit for the energy storage device. The HESS can be part of a power system.

Abstract: A control method of a wireless power transmitting unit transmitting charging power to a wireless power receiving unit is provided. The control method includes receiving first signals from one or more wireless power receiving units; classifying wireless power receiving units to be communicated with from among the one or more wireless power receiving units based on reception intensities of the received first signals; transmitting wireless transmission power with predetermined level; receiving second signals including voltage information of the classified wireless power receiving units from the classified wireless power receiving units; and communicating with one or more wireless power receiving unit among the classified wireless power receiving units based on the wireless transmission power and the voltage information of the second signals.

Abstract: In accordance with various embodiments, described herein are systems and methods for enabling efficient wireless power transfer and charging of devices and/or batteries, including in some embodiments freedom of placement of the devices and/or batteries in one or multiple (e.g. one, two or three) dimensions, and/or improved features such as ease of use and compatibility. Exemplary applications include beam inductive or magnetic charging and power for use in, e.g., mobile, electronic, electric, lighting or other devices, batteries, power tools, kitchen, military, medical, industrial tools or systems, robots, trains, buses, trucks and/or vehicles, and other environments.

Abstract: Aspects of a protection circuit and method are disclosed. An apparatus to transmit wireless power comprises a transmit antenna, a driver, a sensing circuit, and a control circuit. The transmit antenna generates a wireless field to charge devices. The driver powers the transmit antenna for generation of the wireless field. A power level of the wireless field is based on a power level of the driver. The sensing circuit senses wireless power received at the transmit antenna and generates a monitoring signal based on the sensed wireless power received at the transmit antenna. The control circuit controls the power level or inhibits the driver from powering the transmit antenna when the monitoring signal indicates that the transmit antenna is receiving wireless power from a foreign antenna.

Abstract: Disclosed herein is a furniture having a wireless charging function, including: one or more transmission coil units disposed on the same plane of a flat plate of the furniture; and a central transmission controlling unit configured to select at least one transmission coil unit corresponding to a wireless power reception apparatus when the wireless power reception apparatus is placed on the flat plate, and to transmit a wireless power signal through the selected transmission coil unit, the central transmission controlling unit being installed separately from the plurality of transmission coil units.

Abstract: A first electronic device includes an inner inductive coil positioned at least partially around a shield core and a second electronic device includes an outer inductive coil positioned around an aperture. The first electronic device is operable to receive power from and/or transmit power to the second electronic device when a portion of the first electronic device is inserted into the aperture of the second electronic device, positioning the inner inductive coil within the aperture and within the outer inductive coil. When power is being transmitted between the first and second electronic devices, the shield core concentrates magnetic flux around the inner inductive coil and/or the outer inductive coil. In some implementations, an outer shield may be positioned at least partially around the outer inductive coil and may also concentrate magnetic flux around the inner inductive coil and/or the outer inductive coil.

Abstract: An electronic unit includes: an electricity reception section configured to receive power transmitted using one of a magnetic field and an electric field; a secondary battery; a charging section configured to charge the secondary battery based on incoming power received by the electricity reception section; a load configured to perform predetermined operation based on supplied power; a first power supply path running from one of a side of the electricity reception section and a side of the secondary battery to a side of the load via the charging section; and a second power supply path running from the electricity reception section side to the load side around the charging section.