Abstract: An apparatus for converting and distributing regenerative power includes: a controller configured to permit or restrict a V2L function depending on a state of charge (SOC) value of a battery, compare regenerative power generated from a motor according to regenerative braking with a preset electric load required power and/or a V2L required power, and control an operation of converting the regenerative power according to a comparison result and distribution of the converted regenerative power; an inverter configured to convert the regenerative power into at least one power of a first power for an electric load, a second power for a V2L terminal, and power of the battery; and a main distributor configured to distribute the first power to the electric load terminal when the V2L function is restricted.

Abstract: A system including a power device and a portable device for wireless powering of a load of the portable device is provided. The power device includes a transmitter stage to generate a carrier signal and an antenna connected to the transmitter stage to emit a magnetic field with a first waveform of the carrier signal. The portable device includes an antenna exposed to the magnetic field of the power device to receive an antenna signal and a receiver stage connected to the antenna to rectify the antenna signal to provide power to the load of the portable device. The power device is built to emit the magnetic field with the first waveform of the carrier signal in a power transfer mode and to emit the magnetic field with a second waveform of the carrier signal in a communication mode.

Abstract: Solid-state circuit breakers (SSCBs) have been witnessing an impressive progress with the aid of wide bandgap (WBG) devices such as silicon carbide (SiC) MOSFETs. Along with obtaining high efficiency as the result of low on-state resistance, response times have been gaining remarkable achievements in microseconds range. Not only that, the reported successes in control and gate drivers design and incorporating fault detection/location techniques in SSCBs are promising. A MOV-resistive capacitive switch (MOV-RCS) snubber for solid state circuit breakers addresses the following: 1) the MOV degradation issue in DCCBs is solved, 2) the maximum allowable DC bus voltage on DCCBs is extended. The solid state circuit breaker and an active clamping snubber includes a first circuit including a fault current bypass based solid state breaker for low voltage direct current systems.

Abstract: An energy supporting device for a high voltage direct current, HVDC, transmission system includes an energy supporting device for providing grid forming and/or virtual synchronous machine, VSM, capabilities to the HVDC transmission system. The energy supporting device comprises a plurality of cells configured to be connected to the HVDC transmission system, and a cell includes a full-bridge arrangement of power switches, an energy storage device electrically connected to the full-bridge arrangement, a resistor electrically connected between the plurality of cells and an electrical reference potential, and a bypass switch configured to allow the resistor to be bypassed. The energy supporting device is configured to be operated in a dissipation mode, in which the bypass switch is in an open state for allowing the resistor to dissipate electrical energy from the HVDC transmission system, and in which the energy storage devices of the plurality of cells are bypassed.

Abstract: Transmitter assemblies and methods for making and using the same. The transmitter assembly can be used for magnetic power transfer. The transmitter assembly can include a primary inductor configured to produce an electromagnetic field. The transmitter assembly can include a back shield unit including a primary back shield that has a first surface proximal to the primary inductor and a second surface opposite to the first surface. The primary back shield is at least partially made of a ferromagnetic material and has a property that is non-uniformly distributed from a center region of the primary back shield to an outer perimeter region of the primary back shield. The property includes a thickness, a magnetic property, or a combination thereof. When used in wireless charging, the transmitter assembly results in improved coupling factor, misalignment tolerance, efficiency, magnetic emissions and z-height coupling distance of a magnetic power transfer profile.

Abstract: In an embodiment, a power module may include: a plurality of first stages, each having an H-bridge to receive an incoming AC voltage at a first frequency and rectify the incoming AC voltage to a DC voltage; a plurality of DC buses, each to receive the DC voltage from one of the plurality of first stages; a plurality of second stages, each coupled to one of the plurality of DC buses to receive the DC voltage and output a second AC voltage at a second frequency; and a hardware configuration system having fixed components and optional components to provide different configurations for the power module.

Abstract: A multi-band ambient energy harvesting apparatus is disclosed. The apparatus may comprise: at least one antenna that is electrically tuned to multiple frequency bands; and a rectifier electrically coupled to the at least one antenna, where the rectifier is electrically tuned to the multiple frequency bands of the at least one antenna, the at least one antenna has a first reactance, the rectifier has a second reactance, and the second reactance is approximately equal to a negative value of the first reactance at each of the multiple frequency bands to cause the at least one antenna to resonate at the multiple frequency bands.

Abstract: A circuit breaker protecting an electrical low-voltage circuit includes a mechanical separating contact operable by a mechanical handle switching a contact opening function preventing current flow or a closing function for current flow. An electronic interruption unit connected to the mechanical separating contact unit in series on the circuit side, as a result of semiconductor-based switch elements, is switchable to a high-ohmic state of the switch elements preventing current flow or a low-ohmic state thereof for current flow. An ascertained current level is compared with current thresholds and, if exceeded, initiates prevention of current flow in the circuit. When contacts are closed and the interruption unit is in the low-ohmic state, the interruption unit switches to the high-ohmic state upon initiating a voltage-reduced state of the circuit. After discontinuing the voltage-reduced state, the interruption unit switches back to the low-ohmic state.

Abstract: A smart energy recycling system and methods are disclosed. The smart energy recycling system comprises an energy device comprising emitting substrates configured to emit light of a pre-defined wavelength after receiving power from power grid. A photochromatic material disposed around emitting substrates. In an embodiment, photochromatic material is configured to convert photons emitted by emitting substrates into electrical energy. In an embodiment, the photochromatic materials corresponds to PV solar cells. An integrated energy storage device is electrically connected to an energy device and configured to store electrical energy produced by photochromatic materials. A regulation circuit of integrated energy storage device is configured to regulate and direct voltage and current generated by photochromatic materials and provide electrical energy to electrical grid or loads. In an embodiment, electrical energy being stored in an integrated energy storage device.

Abstract: A power conversion device according to one embodiment of the present invention comprises: a plurality of converters that is each connected to a plurality of cell strings; and an auxiliary power supply unit for supplying driving power to each of the plurality of converters, wherein the auxiliary power supply unit includes: a primary-side circuit for receiving the voltage of at least one output terminal from among output terminals of the plurality of cell strings; an insulation type converter for outputting voltage to secondary-side circuits according to the voltage of the primary-side circuit; and the plurality of secondary-side circuits for supplying the driving power to each of the plurality of converters by using the voltage output from the insulation type converter, wherein the plurality of converters have a multi-level structure.

Abstract: A method of operation is provided during which a pre-charge switch is closed to electrically couple a power supply to a motor controller through a pre-charge supply circuit, where a main switch is open. An electrical parameter of electricity directed through the pre-charge supply circuit is measured when the pre-charge switch is closed and the main switch is open. The main switch is closed to electrically couple the power supply to the motor controller through the main supply circuit when the electrical parameter is equal to or passes a threshold.

Abstract: Redundant low-power distribution in a redundant power distribution network (PDN) is disclosed. Multiple low-power conductors are employed to convey power from a power source to a remote subunit. The multiple conductors are isolated from one another to help prevent overcurrent conditions in a fault condition. In some cases, the multiple conductors may be provided for redundancy purposes. A power aggregator may be present at the remote subunit. However, the remote subunit may not contain the end power consumer. In such cases, there may be an additional link from the power aggregator to the end power consumer. A power limiter may be positioned between the power aggregator and the end power consumer. In this fashion, the link between the power aggregator and the end power consumer may still comply with low-power constraints.

Abstract: A power receiving device includes: power receiving unit configured to receive power wirelessly from a power transmitting device; receiving unit configured to receive first information related to a voltage of an inverter included in the power transmitting device from the power transmitting device; and transmitting unit configured to transmit a specific signal to the power transmitting device on the basis of second information which is determined on the basis of the first information, the power transmitting device that has received the specific signal restricting the voltage of the inverter.

Abstract: A wireless power transfer device includes a first transmitting coil oriented along a first axis; a second transmitting coil on the first transmitting coil and oriented along a second axis different from the first axis; a nonmagnetic material magnetically decoupling the first transmitting coil from the second transmitting coil in an area of overlap between the first and second transmitting coils; and a driver configured to separately provide first and second currents to the first and second transmitting coils, respectively, to generate a magnetic field.

Abstract: Various embodiments of a wireless connector system are described. The system has a transmitter module and a receiver module that are configured to wirelessly transmit electrical energy and/or data via near field magnetic coupling. The wireless connector system is designed to increase the amount of wirelessly transmitted electrical power over a greater separation distance. The system is configured with various sensing circuits that alert the system to the presence of the receiver module to begin transfer of electrical power as well as undesirable objects and increased temperature that could interfere with the operation of the system. The wireless connector system is a relatively small footprint that is designed to be surface mounted.

Abstract: One or more devices, systems, and/or methods are provided. In an example of the techniques presented herein, a wake-up receiver includes a power management unit configured to receive a supply voltage generated from an input signal and generate a current reference. An envelope detector is configured to generate a signal corresponding to transitions in the input signal. A signal processing unit is configured to generate an interrupt signal responsive to detecting a wake-up pattern in the signal from the envelope detector. The envelope detector comprises a first diode threshold compensated by the current reference.

Abstract: A controllable electrical outlet may comprise a resonant loop antenna. The resonant loop antenna may comprise a feed loop electrically coupled to a radio-frequency (RF) communication circuit and a main loop magnetically coupled to the feed loop. The controllable electrical outlet may comprise one or more electrical receptacles configured to receive a plug of a plug-in electrical load and may be configured to control power delivered to the plug-in electrical load in response to an RF signal received via the RF communication circuit. The RF performance of the controllable electrical outlet may be substantially immune to devices plugged into the receptacles (e.g., plugs, power supplies, etc.) due to the operation of the resonant loop antenna. For example, degradation of the RF performance of the controllable electrical outlet may be less when the controllable electrical outlet includes the resonant loop antenna rather than other types of antennas.

Abstract: A first energy converter that can consume a first physical energy form of a first energy delivery network can be controlled to produce a second physical energy form of a second energy delivery network and inject the second physical energy form into the second energy delivery network. A second energy converter that can consume the second physical energy form of the second energy delivery system can be controlled to produce the first physical energy form of the first energy delivery network and inject the first physical energy form into the first energy deliver network. The controlling of the first energy converter and the controlling of the second energy converter can be coordinated. Related apparatus, systems, techniques and articles are also described.

Abstract: A wireless power delivery system includes, in part, a roaming and articulating wireless power transfer device. The roaming and articulating wireless power device includes, in part, a wireless power generation unit, an energy storage unit, a controller, and an electrically driven moving platform. The device further includes, in part, at least one RF transmitter or an array of RF transmitters adapted to radiate RF signals at the same frequency. The controller is adapted to control the phase of each RF transmitter independently. The array of RF transmitters may be foldable and expandable. The moving platform may include an inertia measurement, a GPS, bump sensors and proximity sensors. The device may further include a camera, and a wireless communication link via which the device establishes a two-way communication with a recovery unit being wirelessly powered.

Abstract: A power harvesting system including multiple parallel-connected photovoltaic strings, each photovoltaic string includes a series-connection of photovoltaic panels. Multiple voltage-compensation circuits may be connected in series respectively with the photovoltaic strings. The voltage-compensation circuits may be configured to provide respective compensation voltages to the photovoltaic strings to maximize power harvested from the photovoltaic strings. The voltage-compensation circuits may be include respective inputs which may be connected to a source of power and respective outputs which may be connected in series with the photovoltaic strings.