Abstract: A power feeding unit includes: an electrode array including a plurality of power feeding electrodes arranged side by side; a power feeding section configured to supply power to a power receiving unit via the electrode array; and a setting section configured to set a power feeding condition for each of the power feeding electrodes.

Abstract: Disclosed herein is a technique for a connection from an Ethernet physical transceiver (PHY) to an integrated connector module (ICM) where the connection and the ICM lack a common mode choke. The ICM can include a magnetic coupler that directly couples an Ethernet jack and the PHY.

Abstract: invention describes a modular energy storage direct converter system (10) which comprises the following: a control device (20) and at least one bridge branch (12) which comprises The a plurality of modules (14) which are connected in series, wherein each of said modules (14) comprises a storage element for electrical energy, in particular a battery, or an energy conversion element. Said modules (14) are designed and can be actuated such that the storage element or energy conversion element of a module can be selectively deactivated, and that the storage elements or energy conversion elements of two modules, which are separated by at least one intermediate module with a deactivated storage element/energy conversion element, can be connected selectively in parallel and in series.

Abstract: A control device to be used in a power receiving device that receives power from a power transmitting device by contactless power transmission includes a power supply portion that supplies power to a load based on power received by a power receiving portion, a communication portion that performs communication in which communication data is transmitted to the power transmitting device, and a control portion that controls the power supply portion and the communication portion. The control portion causes the communication portion to start the communication when an output voltage of the power receiving portion becomes higher than a first voltage, and causes the power supply portion to start power supply to the load when, after the communication is started, the output voltage of the power receiving portion becomes higher than a second voltage that is different from the first voltage.

Abstract: A method provides closed-loop control for an entire power supply system which has three supply levels each considered to be a separate regulatory unit and controlled independently of the other supply levels. An interface between two respective regulatory units is defined by control of the active power and reactive power transmitted between the two regulatory units. Appropriate control of the active power and reactive power transmitted between the regulatory units allows these regulatory units to be isolated from or connected to one another in terms of power. A power supply system is ideally regarded as a chain of separate regulatory units for supplying power. This allows efficient and safe operation and local control of a power supply system to which locally produced power is supplied, for example on different supply levels. In addition, a low number of data items to be interchanged between the supply levels is maintained.

Abstract: An apparatus for controlling one or more switched high power loads (or heating elements). The apparatus including: one or more switched high power loads (or heating elements), each high power load being powered from a common alternating current power source, and wherein each load is independently switched using a switching signal for zero crossing switching to achieve a desired average power output; the switching signal is generated that comprises a repeated switching sequence; the switching sequence indicates a respective selecting activation for each of the switched high power load over a sequence of half or full cycles.

Abstract: A battery module according to an embodiment includes a battery; a breaker that switches electrical connection of an output line from the battery to outside; a power source switch circuit that receives an internal source voltage supplied from the battery, an external source voltage supplied from an external power source, and an boot signal from outside, and switches a source of power that supplies source voltage from the external power source to the battery when at least one of the external source voltage and the boot signal is at a second level; and a control circuit that uses, as power supply, the source voltage that is output from the power source switch circuit, and controls operation of the breaker and of the power source switch circuit.

Abstract: The disclosure relates to a relay having a controllable relay contact, having an electrical connection terminal where an electrical variable is able to be tapped, a control connection for receiving a control signal for actuating the relay contact, and a controller, configured, in response to the reception of the control signal, to detect a zero crossing of the electrical variable and to actuate the controllable relay contact in a time-delayed manner after the zero crossing of the electrical variable.

Abstract: Safety power disconnection for remote power distribution in power distribution systems is disclosed. The power distribution system includes one or more power distribution circuits each configured to remotely distribute power from a power source over current carrying power conductors to remote units to provide power for remote unit operations. A remote unit is configured to decouple power from the power conductors thereby disconnecting the load of the remote unit from the power distribution system. A current measurement circuit in the power distribution system measures current flowing on the power conductors and provides a current measurement to the controller circuit. The controller circuit is configured to disconnect the power source from the power conductors for safety reasons in response to detecting a current from the power source in excess of a threshold current level indicating a load.

Abstract: Systems and methods for providing power to a blade pitch system in a wind turbine are provided. A blade pitch system can include one or more motors configured to pitch one or more blades of a wind turbine and a power source. The power source can include a plurality of energy storage devices coupled in series. The plurality of energy storage devices can be configured to provide power to the one or more motors during a power loss event. The power source can further include at least one bypass current device configured to allow a bypass current to provide power from at least one energy storage device to the one or more motors. The bypass current can be a current that bypasses one or more failed energy storage devices in the plurality of energy storage devices.

Abstract: A adapter having an inputting terminal and an outputting terminal is provided. The adapter further includes a converter having a first side and a second side, a testing switch having a first terminal and a second terminal, a detecting circuit and a first indicator. The first side is coupled to the inputting terminal. The second side is coupled to the outputting terminal. The converter is used to convert inputting power for providing outputting power to a load system. The first terminal is coupled to the second side. The detecting circuit is coupled to the second terminal. When the first terminal and the second terminal of the testing switch are conducted, the load system is disconnected with the adapter by the detecting circuit. The detecting circuit is used to detect an outputting signal for generating a detecting result. The first indicator sends a message according to the detecting result.

Abstract: A system power supply circuit receives an input voltage VIN, and supplies a power supply voltage to multiple load circuits including a microcomputer. Multiple power supply circuits support the multiple load circuits. An abnormality detection circuit generates an abnormality detection signal that is negated when the input voltage VIN is within, and asserted when it deviates from, the first voltage range, and outputs this signal to the microcomputer. The interface circuit can communicate with the microcomputer. The interface circuit receives a control signal generated by the microcomputer in response to abnormality detection signal assertion, and suspends power supply circuit operation of a channel indicated by the control signal. When the input voltage VIN deviates from a second voltage range defined to be wider than the first voltage range, an internal protection circuit suspends at least one power supply circuit of a predetermined channel.

Abstract: A system and method of provided power to one or more electrical loads of an electrical load module is provided. The electrical load module includes an alternating current (AC) power input port, a direct current (DC) power input port, a power distribution device, a first power supply device, a second power supply device, and a first electrical load component. The power distribution device is electrically coupled to the AC power input port via a first connector and the DC power input port via a second connection. The first electrical load component is coupled to the first power supply device and the second power supply device. The first power supply device and the second power supply device are configured to provide power to the first electrical load component and a feed from an alternative power source system is directly connected to the DC power input port of the electrical load module.

Abstract: A device is disclosed, which includes: a charge portion with a plurality of piezoelectric elements embedded in a tire configured for a vehicle, a capacitor mechanically coupled to the tire and electrically coupled to the plurality of piezoelectric elements; a transmitter coil, mechanically coupled to the tire and electrically coupled to the capacitor through a discharge portion; wherein in response to an external radial pressure on the tire resulting from movement of the vehicle which causes a pressure on the plurality of piezoelectric elements, the plurality of piezoelectric elements produce an electrical charge on the capacitor, and wherein the discharge portion electrically connects the electrical charge on the capacitor to the transmitter coil to send electromagnetic power to the vehicle.

Abstract: A communication method of a wireless power receiver performing communication with a wireless power transmitter, includes transmitting control information to the wireless power transmitter at a time slot in a first cycle; receiving an ACK signal from the wireless power transmitter when the control information is transmitted without collision at the time slot in the first cycle; determining a position of the time slot from among a plurality of time slots within the first cycle in response to the received ACK signal; receiving, in a second cycle, a sync pattern which indicates that the time slot is allocated to the wireless power receiver; and performing communication with the wireless power transmitter using the allocated time slot in the second cycle.

Abstract: A transmitter has a transmitting resonant circuit, a transmitting circuit that supplies high-frequency power to the transmitting resonant circuit, and a demodulator. A receiver has a receiving resonant circuit; a receiving circuit that converts high-frequency power received by the resonant circuit into DC power; a load circuit that consumes the DC power; a resonance modulator that varies an input impedance, viewed toward the load circuit from the transmitting circuit, to switch whether an electromagnetic resonance condition is established; and a transmission-signal controller that converts a transmission signal into a variation pattern, representing a pattern of variation per predetermined time period of the input impedance, to control the resonance modulator.

Abstract: Techniques for wirelessly charging smart textiles, such as smart garments, are provided. Aspects of the present application provide a smart garment device with an array of integrated coils and rectifiers that enable wireless charging of the device from a drawer or other enclosure that produces a roughly uniform AC magnetic field. The smart garment can draw power from the magnetic field once placed within the enclosure, regardless of how the garment is placed in the enclosure. The method can be applied to garments of any shape, and multiple garments can be charged simultaneously by placing the multiple garments into the same magnetic field.

Abstract: A switching power supply device includes a first switch, a second switch, a current sensing portion configured to sense current flowing in the second switch, and a controller configured to control the first and second switches in accordance with the current sensed by the current sensing portion. The controller includes an accumulating portion configured to accumulate information of the current sensed by the current sensing portion during a predetermined period of time while the first switch is in the off state, and reflecting portion configured to start the transmission of the current information accumulated by the accumulating portion before the first switch is changed from the off state to the on state so as to reflect the current information accumulated by the accumulating portion on the slope voltage, and controls the first and second switches in accordance with the slope voltage.

Abstract: A portable information handling system selectively accepts power transferred from an external device through a port, such as USB Type C port, with one of a first or second power configuration. The first power configuration accepts power regulated by a charger of an external device and routed directly to a system bus and battery of the portable information handling system. The second power configuration accepts power regulated by an internal charger of the portable information handling system, such as a narrow voltage direct current charger.

Abstract: A dynamic inductive wireless power transmitter (“DIPT”) system is disclosed. In embodiments, a DIPT system includes an AC-to-DC power converter configured to receive three-phase power from an AC utility source. The DIPT system further includes a trunk cable electrically connected to the AC-to-DC power converter and multiple power transmitter modules electrically connected to the trunk cable and connected to each other in series. Each of the multiple power transmitter modules are configured to transmit inductive wireless power over an air gap from the DIPT system to a vehicle containing a receiver coil. The DIPT system further includes a system controller configured to detect a vehicle containing a receiver coil, identify the vehicle containing a receiver coil, and confirm if the vehicle containing a receiver coil should receive inductive wireless power from the DIPT system.