Abstract: A USB power supply circuit is discussed. The circuit has at least two power converters and a controller. The controller controls the power converters to provide required output powers to devices attached to the controller and monitors the provided output powers. If one of the power converters has an idle power margin, the idle power margin would be distributed to other power converters.

Abstract: A wireless power transceiver (WPT) device is disclosed. The WPT device includes an energy module and a magnetic interfacing unit comprising a transceiver coil. Further, the WPT device includes a controller configured to generate one of a first control signal and a second control signal based on at least one first parameter of the energy module and at least one second parameter of one of a plurality of external devices. Also, the WPT device includes a bi-directional driver configured to transmit at least one of a first AC signal and a second AC signal through the transceiver coil if the first control signal is received from the controller, and receive at least one of the first AC signal and the second AC signal if the second control signal is received from the controller.

Abstract: A modular sensor system comprising a plurality of modules, the plurality of modules comprising one or more sensors, one or more energy harvesters, one or more energy storage devices, one or more wireless radios, and one or more electronics devices, wherein the one or more energy harvesters comprise a photovoltaic cell; and one or more blind-mate connectors contained within each of the plurality of modules, wherein the one or more blind-mate connectors comprise an electrical connector to transmit power and/or data and configured to connect two modules of the plurality of modules together.

Abstract: The disclosure is generally directed to systems and methods for guiding an individual to an electrical power outlet in a vehicle. An example method executed by a processor of an electrical power outlet controller in a vehicle includes determining that an individual is seeking an electrical power outlet provided on the vehicle, selecting a first electrical power outlet from a plurality of electrical power outlets provided on the vehicle, and providing location information of the first electrical power outlet. The location information may be provided in various forms such as in the form of an audio signal (a beeping sound produced by a beeper, for example), a visual indication (a light source illuminating the electrical power outlet, for example) an audible instruction (navigation assistance provided via a speaker, for example), a graphical indication (navigation assistance via a personal device), and/or a text message (navigation assistance via a personal device).

Abstract: An intelligent terminal device is provided for preventing mal-operation of a power equipment. The power equipment has safety devices, such as breakers, isolators or disconnectors. The intelligent terminal device includes a communication module, a display unit, an input/output (I/O) module, and a protection shell covering and protecting the communication module. The display unit is used to display a communication status and a status of an unlocking mode, which is switchable between a remote unlocking mode and an in-site unlocking mode. The I/O module provides power I/O and I/O of information of the status of the power equipment. The communication module is used to monitor the status of the power equipment and the safety devices, control actions of the safety devices, upload the status to a control device through a network; and in response to receiving an unlocking instruction from the control device, perform an unlocking procedure.

Abstract: An example receiver device to be wirelessly charged in motion includes a power receiver to receive a power beam to charge a power supply and a modulating reflector. The modulating reflector is to reflect a portion of the power beam as a reflected signal, modulate the reflected signal, and vary a direction of the reflected signal to scan an area for an example power beam transmitter device. The power beam transmitter device is to track motion of the receiver device based on modulation of the reflected signal and to cooperate with other power beam transmitter devices to prioritize distribution of power among a plurality of receiver devices. An example system for wireless charging of devices in motion includes a plurality of power beam transmitter devices to coordinate transmission of power beams to a receiver device based on the motion of the receiver device.

Abstract: An electrical system for providing electrical power to an electric machine, where the electrical system includes a single point disconnect switch for multiple battery systems. The single point disconnect switch may be remotely mounted. In some examples, operation of the disconnect switch disconnects a first battery system, e.g., a 12 VDC nominal battery system, which, in turn, causes a disconnection of a second battery system, e.g., a 48 VDC nominal battery system.

Abstract: The disclosure discloses a server, which includes a housing, a plurality of hash boards, a control module, a power supply module, an electrical connection board and a heat dissipation nodule, wherein a second accommodation space is suitable for assembling a power supply module. A plurality of hash boards are slidably arranged in a first accommodation space of the housing. The control module is slidably arranged in a third accommodation space of the housing, and the power module is slidably arranged in a fourth accommodation space of the housing. The hash board, the power module, the control module and the power supply module are respectively connected with the electrical connection board. The power supply module supplies power to the hash board through the electrical connection board, and the power supply module supplies power to the control module through the electrical connection board.

Abstract: Method for checking load circuits of a control system in an installation, wherein the system includes load circuits with a load unit, a control unit and a clocked power supply that supplies the load circuits with a supply voltage or a supply current via output channels activated by control signals from the control unit, where reference values for currents or voltages are initially determined for predefined installation states in which an output channel is activated and an associated load circuit is supplied with predefined voltage values of the supply voltage or predefined current values of the supply current, reference values determined for the predefined installation states are stored, during a self-test present current values or voltage values on the activated output channel are subsequently measured, and a check is performed, and the corresponding associated load circuit is indicated if a deviation from a tolerance range exists.

Abstract: Non-dimmable LED light bulbs are less expensive than dimmable LED light bulbs and are “non-dimmable” by definition. This invention solves this problem, and it is possible to make a light dimmer that would dim non-dimmable LED light bulbs. Also, it can be used with dimmable LED light bulbs. The proposed dimmer will also extend the life of the LED light bulb since it does not use burst of high current pulses used in the PWM type dimmers. There is no power loss within the proposed dimmer circuit since it does not use any resistive or active components. The proposed invention can also be used to convert non-dimmable or dimmable LED light bulbs into reduced wattage light bulb which in turns saves energy, money and extends LED bulb life.

Abstract: A power mesh structure for an integrated circuit is provided. A power switch cell is installed on the chip of the integrated circuit to control the switching operations of the power domain. The power meshes of the power mesh structure is specially designed. The power wires with different electrical properties are arranged in the same column or the same row to reduce the layout area of the power mesh on the material layer.

Abstract: A charger outlet cover assembly for charging electronic devices includes a wall plate that is positionable over a female electrical outlet. A plurality of contacts is each of the contacts is coupled to the wall plate thereby facilitating each of the contacts to engage a respective socket in the female electrical outlet. A pair of chargers is each coupled to the wall plate. Each of the chargers is in electrical communication with respective ones of the contacts to receive electrical power from a power source. A pair of charging cords is each retractably disposed on a respective one of the chargers to charge a respective electronic device.

Abstract: Disclosed is a lamp with easy assembly and disassembly comprising a power socket and a lamp body. The power socket comprises a housing and a power supply assembly which is provided in the housing, the power supply assembly is connected with a power supply, the housing is provided with at least one mounting slot which is provided with a press-type locking socket and PCB probes, and the PCB probes are electrically connected with the power supply assembly, a mounting plug with an accommodating groove is provided on the lamp body, a press-type locking plug and a PCB board are provided in the mounting plug; the PCB board is electrically connected to the light source of the lamp body; when the mounting plug is inserted into the mounting slot, the push-type locking plug is inserted into the push-type locking socket and is locked.

Abstract: Provided herein is a power distribution system comprising a main power bus, sub-buses coupled to the main power bus, and a controller. The sub-buses provide power to electrical components of a vehicle. Each of the sub-buses includes an electrically programmable fuse in series with a relay. The controller is configured to detect a fault in a sub-bus of the sub-buses, determine a fault type associated with the fault, and in response to determining the fault type, generate a command to cause the relay to change a relay state.

Abstract: Disclosed is a power distribution system, comprising a power feed line configured to supply electric power of a given power feed line voltage, a plurality of solid state power control modules connected to the power feed line; each of the solid state power control modules comprising at least one solid state power controller connected to at least one load to be supplied with power from the power feed line and configured to selectively connect the respective load to the power feed line or to disconnect the respective load from the power feed line; the power feed line comprising at least one power feed line segment connecting two adjacent solid state power control modules; wherein the at least two adjacent solid state power control modules are connected by a further electric line connected in parallel to the at least one power feed line segment.

Abstract: In particular embodiments, a computing system may divide at least a portion of a physical space surrounding a user into a plurality of three-dimensional (3D) regions, wherein each of the 3D regions is associated with an area of a plurality of areas in a plane. The system may generate estimated locations of features of objects in the portion of the physical space. Based on the estimated locations, the system may determine an occupancy state of each of the plurality of 3D regions. Then based on the occupancy states of the plurality of 3D regions, the system may determine that one or more of the plurality of areas have respective airspaces that are likely unoccupied by objects.

Abstract: An electrical wiring device including a ground fault interrupt assembly, the ground fault interrupt assembly comprising a ground fault interrupt circuit, being formed on a first printed circuit board, and a trip mechanism, the ground fault interrupt circuit being configured to detect a differential current between the line conductor and the neutral conductor and to trigger the trip mechanism to electrically decouple the plurality of line terminals from the plurality of load terminals, according to a predetermined criterion, based, at least in part, on the different current; and a USB power supply circuit being formed on a second printed circuit board disposed within the compartment, the USB power supply circuit providing to the at least one USB port, wherein the first printed circuit board and the second printed circuit board are separated by a distance within the inner compartment.

Abstract: A receptacle includes a plurality of universal serial bus (USB) ports including a USB Type C PD port and a USB Type C port couplable to respective devices for charging, a controller coupled to the USB ports and including a dynamic power sharing logic, the controller structured to: determine whether one or more USB ports are coupled to the respective devices and manage first power negotiation and dynamic power sharing if both USB ports are coupled to respective devices or manage second power negotiation if only one USB port is coupled to respective device; an AC/DC converter including a gallium nitride (GaN) MOSFET on at least one of the primary side or the secondary side of the AC/DC converter, the AC/DC converter structured to provide high power to the USB Type C PD port; and a DC/DC converter structured to provide low power to the USB Type C port.

Abstract: An architecture for an aircraft comprises two air-conditioning systems, two converters, each intended to supply one of the air-conditioning systems, and at least one first electric machine which starts up a first main engine of the aircraft. The electrical architecture is configured such that the two converters can together supply the first electric machine. A method of operating the architecture is also provided.

Abstract: An electrical power distribution splitter is designed to receive high wattage electrical power, e.g. 80 W-600 W, and then to “split” that power into multiple low output wattage electrical power, e.g. 60 W/12V or 96 W/24V. An IC and circle board in the distribution splitter is used to reduce output power in this manner. The result is the ability to input a single large wattage electrical power supply to a distribution splitter which then outputs multiple lower wattages to a variety of individual different circuits, and, in so doing, a Class 2 UL power supply can be utilized. This is especially important in the signage industry where, for example, one large wattage power electrical supply feeding into the power distribution splitter can supply multiple smaller wattage power to different circuits in one sign.

Abstract: In some examples, an ECU includes a microcontroller, a first load switch, a first amplifier, a first control circuit, and an internal ground connected to an external ground. The first load switch is operable to connect and disconnect the ECU from a first ground path to the external ground. The first amplifier is operable to sense a current flow relative to the first ground path. The first control circuit is operable to receive an output from the first amplifier and to control the first load switch. When the ECU is non-operational and the microcontroller is in an OFF state, the first amplifier is operable to sense current indicative of a ground fault occurring relative to the first ground path. In response, the first amplifier outputs a signal which causes the first load switch to disconnect the internal ground from the first ground path.

Abstract: A testing system (90) for use in testing of wireless power transfer is disclosed. The testing system has at least one wireless power receiver circuit (34) for receiving inductive power from an external wireless power transmitter (20). The testing system is arranged to detect received inductive power at least two operating frequencies relating two both a wireless power standard and a wireless communication standard. Measurements data originating from inductive power received adopting the wireless communication standard is forwarded to a processing means (42) which based on reference data is arranged to detect whether a communication receiver circuit (15) and arranged to communicate according to the wireless communication standard adopting the second frequency range, when arranged in operative proximity to the external wireless power transmitter device (20), would be negatively affected by the inductive power transmitted from the external wireless power transmitter device (20).

Abstract: A direct-current network has an infeed unit, a plurality of network sections which are each separably inter connected by respective switching elements, and a controllable current-limiting unit, which limits charge-transfer currents that flow between the network sections because of different voltages of the network sections following disconnection of the network sections from the infeed unit and before reconnection of the network sections to the infeed unit.

Abstract: A power converter includes a first rectifier circuit having a pair of first rectifier circuit output terminals and a second rectifier circuit having a pair of second rectifier circuit output terminals, a snubber circuit comprising a first diode and a first capacitor connected to each other at a first node and connecting the pair of first rectifier circuit output terminals, a second diode and a second capacitor connected to each other at a second node and connecting the pair of second rectifier circuit output terminals, a third diode connecting the first node to one of the pair of second rectifier output terminals, and a fourth diode connecting the second node to one of the pair of first rectifier output terminals.

Abstract: A power transmitter (101) of a wireless power transfer system provides wireless power to a power receiver (105). The power transmitter (101) comprises a variable resonance circuit (201) generating an inductive power transfer signal in response to a drive signal. The resonance circuit comprises a capacitive and inductive impedance (201, 203), at least one of which is variable. The resonance frequency can be varied by at least one of the impedances being variable in response to a control signal. A driver (205) generates the drive signal with a variable drive frequency. A frequency modulator (305) applies frequency modulation to the drive signal by varying the variable drive frequency in response to data values to be transmitted to the power receiver (105). An adapter (309) generates the control signal in response to the data values such that the variable resonance frequency follows the variations in the drive frequency resulting from the frequency modulation of the drive signal.

Abstract: Provided are a wireless charging device, a wireless charging method, and a device to-be-charged. The wireless charging device is configured to conduct wireless communication with the device to-be-charged through communication control circuits to adjust a transmission power of the wireless charging device. The device to-be-charged includes a battery, a wireless receiving circuit, a first charging channel, a detecting circuit, and a communication control circuit.

Abstract: An electrode unit is used in a power transmitting device or a power receiving device in a wireless power transmission system of an electric field coupling method. The electrode unit includes a first electrode and a second electrode, which are a power transmitting electrode pair or a power receiving electrode pair, and a matching circuit to be connected between a power conversion circuit and the first and second electrodes in the power transmitting device or the power receiving device. The matching circuit includes a first inductor connected to the first electrode, a second inductor connected to the second electrode, and a first capacitor. The first capacitor is connected between a wire between the first electrode and the first inductor and a wire between the second electrode and the second inductor. The first inductor and the second inductor are magnetically coupled together with a negative coupling coefficient.

Abstract: A symmetric method for obtaining network-power-loss components induced by sources and loads at individual buses in AC power networks is invented. Two linear expressions of bus injection active and reactive powers in terms of translation voltages and voltage angles of all buses are established at first. Then a linear symmetric matrix-equation model for the steady state of the network is built. Manipulating this model by Moore-Penrose pseudoinverse produces a linear symmetric matrix expression of translation voltages and voltage angles of all buses in terms of bus injection powers. Expressing the network power loss in terms of source's and load's powers by this matrix expression, a symmetric algebraic calculation formula for obtaining the network-power-loss components is produced after manipulating by Shapley value theorem, by which the obtaining of network-power-loss components are achieved. The set of network-power-loss components provides a new efficient tool for economic operation of AC power networks.

Abstract: Devices, systems, and methods may use a low current power source to charge an intermediate storage unit, providing sufficient electric power to perform various device functions. A voltage of the intermediate storage unit may be monitored using a voltage monitoring circuit, and a primary storage unit may be charged using current from the intermediate storage unit when the voltage of the intermediate storage unit meets a threshold.

Abstract: A power management system includes a bypass device, a main boost converter and a linear regulator. The bypass device is coupled to a node, when a main input voltage exceeds a threshold voltage, the bypass device is used to output the main input voltage to the node, and when the main input voltage is less than the threshold voltage, the bypass device is disabled. The main boost converter is coupled to the node, when the main input voltage is less than the threshold voltage, the main boost converter is used to up-convert the main input voltage to the threshold voltage to output the threshold voltage to the node, and when the main input voltage exceeds than the threshold voltage, the main boost converter is disabled. The linear regulator is coupled to the node for down-converting the voltage at the node to provide a first voltage to a microprocessor.

Abstract: The present technology relates to a communication device, a control method, and a program which enable reliable selection of a desired target. A CLF transmits a polling command received from a NFC reader for selecting a candidate of a final target to targets, selects the candidate of the final target, by setting a P2P application as a target having the highest priority in the selection of the candidate of the final target, selects the final target based on a command other than the polling command received from the NFC reader, and controls to lower the priority of the P2P application, in a case where the P2P application is selected as the candidate of the final target and the P2P application is not selected as the final target. The present technology can be applied to a communication device supporting an NFC standard, for example.

Abstract: Embodiments herein describe operating a control system for a wind turbine in a first mode and second mode of operation. When in the first mode, the wind turbine provides power to a local AC grid. However, when in the second mode, the wind turbine provides power to a high-voltage direct current (HVDC) link. The control system includes a reactive power control leg and an active power control leg. To switch from the first mode to the second mode, the control system activates a PI controller coupled between the reactive and active power control legs which increases the output voltage of the wind turbine until the magnitude of the voltage activates a diode rectifier and permits the power outputted by the wind turbine to be transmitted along the HVDC link.

Abstract: An intermediate power supply unit for distributing lower voltage power to remote devices is disclosed. The intermediate power supply unit includes a higher voltage power input configured to receive power distributed by a power source and a power coupling circuit configured to couple the higher voltage power input to a plurality of power coupling outputs. If it is determined that a wire coupling the power source to the higher voltage power input is touched, the higher voltage power input is decoupled from the power coupling outputs. The intermediate power supply unit also includes a power converter circuit configured to convert voltage on higher voltage inputs to a lower voltage applied to one or more lower voltage outputs. The power converter circuit is also configured to distribute power from the one or more lower voltage outputs over a power conductor coupled to an assigned remote device.

Abstract: Disclosed is a control method of a wireless power transmitter, including transmitting power to a plurality of wireless power receivers based on a first power value required by a first wireless power receiver from among the plurality of wireless power receivers, and before reaching a threshold condition in which a system error occurs in the wireless power transmitter, transmitting a power adjust command to reduce the power to a lower percentage of a maximum received power level, to at least one wireless power receiver from among the plurality of wireless power receivers, wherein the power adjust command is a control command for reducing power consumption of the at least one wireless power receiver from among the plurality of wireless power receivers, and wherein the system error comprises at least one of an over-temperature error, an over-current error, and an over-voltage error.

Abstract: Disclosed is a power distribution system, comprising a power feed line configured to supply electric power of a given power feed line voltage, a plurality of solid state power control modules connected to the power feed line; each of the solid state power control modules comprising at least one solid state power controller connected to at least one load to be supplied with power from the power feed line and configured to selectively connect the respective load to the power feed line or to disconnect the respective load from the power feed line; the power feed line comprising at least one power feed line segment connecting two adjacent solid state power control modules; wherein the at least two adjacent solid state power control modules are connected by a further electric line connected in parallel to the at least one power feed line segment.

Abstract: An IPT track arrangement including a power supply and conductor electrically connected to the power supply, the conductor includes a plurality of loops located substantially adjacent one another, wherein the polarity in adjacent portions of the loops is the same, and wherein the power supply includes a one or more inverters which share the track load.

Abstract: A method for performing energy management for a building includes generating a stack of energy loads representative of a plurality of building energy loads. The energy loads are prioritized from highest priority energy loads to lowest priority energy loads. The prioritized energy loads are then compared to a building power threshold. The lowest priority energy loads are shed until a sum of remaining energy loads is equal to or less than the building power threshold. The remaining energy loads are serviced. The processes of prioritizing the energy loads, comparing the prioritized energy loads to a building power threshold, and shedding the lowest priority energy loads is repeated in response to changes in circumstances affecting the building.

Abstract: The present invention discloses a power-on/off drive circuit and a method for controlling the power-on/off drive circuit, and belongs to the field of electronic technologies. The power-on/off drive circuit includes a load, a switch circuit, a relay, and a single-source drive circuit; one end of a coil in the relay and a first input end of the single-source drive circuit are separately connected to a positive electrode of a second external power supply, and the other end of the coil in the relay is connected to a second input end of the single-source drive circuit; and a first output end of the single-source drive circuit is connected to a second input end of the switch circuit, a second output end of the single-source drive circuit is connected to the output end of the switch circuit, and a third output end of the single-source drive circuit is connected to a negative electrode of the second external power supply. In the present invention, a volume of a power-on/off drive circuit is reduced.

Abstract: A dual output power supply including: a first power conversion unit for generating a first DC output voltage to drive a first load according to a DC input voltage; a second power conversion unit for generating a second DC output voltage to drive a second load according to the DC input voltage; a switching unit having two channel ends coupled to the first DC output voltage and the second DC output voltage respectively; a load power measurement unit for measuring a sum of power of the first load and the second load; and a digital microcontroller unit coupled to the switching unit and the load power measurement unit for determining a switching signal to drive a control terminal of the switching unit according to the sum of power.

Abstract: A system used to monitor and control a pool using a visual light communication system is disclosed.

Abstract: Systems and method for synchronizing power generators with a power grid are provided. One system among various implementations includes a plurality of synchronization modules, wherein each synchronization module corresponds to one power generator. The synchronization modules are configured to output a control signal to adjust a frequency of the respective power generator to correspond with the frequency of the existing power grid. The system also includes a central controller in communication with the plurality of synchronization modules. The central controller is configured to determine a propagation delay with respect to each synchronization module. The propagation delay is a measure of time for a signal to propagate from the respective synchronization module to the central controller. The central controller is further configured to send a control signal to each synchronization module to control when each synchronization module connects the respective power generator to the existing power grid.

Abstract: Voltage regulation techniques for providing stable power to the components mounted on an electronic device circuit board are presented. In addition to a first component and a second component, a voltage converter and a power line are provided on the electronic device circuit board. The voltage converter converts an external voltage to an internal voltage that is conveyed through the power line. The first component is coupled to the power line to get power via a first power supply point on the power line. The second component is coupled to the power line to get power via a second power supply point on the power line. A first feedback terminal is provided on the power line between the first power supply terminal and the second power supply terminal. The voltage converter regulates the internal voltage based on a voltage value retrieved from the first feedback terminal.

Abstract: Intermittently re-distributing power from three phases of a power grid connected to power consuming components of a data center by configuring power supply units (PSUs) which are integrated into each enclosure, two PSUs per enclosure. The distribution is determined by machine logic to: (i) meet the predicted power requirements of the power consuming components of the data center, and (ii) the use of first phase, second phase and third phase electrical powers is at least approximately in balance.

Abstract: Systems and methods for securing access to a mobile device are disclosed. A method includes: transmitting, by a computer device, a tone to a surface of an object; detecting, by the computer device, a frequency response from the object based on the transmitted tone; determining, by the computer device, that the detected frequency response from the surface of the object conforms to a stored frequency response; and unlocking, by the computer device, the computer device based on the determining.

Abstract: In accordance with an embodiment, a method of operating an electronic system includes detecting an incoming transmission on a power line, and modifying a switching behavior of a switched-mode power supply coupled to the power line upon detecting the incoming transmission. Modifying reduces the level of interference produced by the switched-mode power supply.

Abstract: In accordance with an embodiment, a method of operating an electronic system includes detecting an incoming transmission on a power line, and modifying a switching behavior of a switched-mode power supply coupled to the power line upon detecting the incoming transmission. Modifying reduces the level of interference produced by the switched-mode power supply.

Abstract: A massage bathing maintenance system suitable for a massage bathing equipment is provided. The system comprises at least one attached device, at least one slave control device, a master control device, and an analyzing unit. The at least one attached device is configured to actuate with regard to the massage bathing equipment. The at least one slave control device comprises a control unit configured to generate and transmit at least one actuating message according to at least one actuating-status of the at least one attached device. The master control device comprise a log-collecting unit configured to record the at least one actuating message of the at least one slave control device into a logs table. The analyzing unit is configured to analyze the at least one actuating message of the logs table so as to determine whether the actuation of at least one attached device is abnormal.

Abstract: A System and Method for a Dynamic Switchable Active Front End—Dynamic Switchable Active Harmonic Filtering System is disclosed.

Abstract: A system for switching focus between devices participating in a communication session, the system comprising a connector to link a device to a master control apparatus, the connector including a one-wire bidirectional serial bus, wherein the connector is configured to transmit a signal to the master controller representing a focus request for the device in question.

Abstract: A wireless power transmission apparatus can include a member; an upper transmission coil disposed on the member; and first and second terminals disposed in the member, in which the upper transmission coil includes an outer coil part connected to the first terminal and formed in one-turn; a first inner coil part connected to the outer coil part and having a half-turn on a first region of the member; a second inner coil part connected to the first inner coil part and having a half-turn on a second region of the member; a third inner coil part connected to the second inner coil part and having a half-turn on the first region of the member; and a fourth inner coil part connected to the third inner coil part and the second terminal and having a half-turn on the second region of the member, in which the half-turn of the second inner coil part comprises a first rounded corner, a second rounded corner and a third rounded corner, a circular arc of the first rounded corner of the second inner coil part is R 20 mm as a