Abstract: An antenna for wireless power transmission includes a source coil comprised of a first conductive wire, the source coil including a first outer turn and a first inner turn, the source coil configured to connect to one or more electronic components for wireless power transfer. The antenna further includes an internal repeater coil comprised of a second conductive wire, the internal repeater coil including a second outer turn and a second inner turn, the internal repeater coil configured to have a repeater current induced in the second outer turn and the second inner turn.

Abstract: A power distribution unit (PDU) for use with an electrically powered accessory is disclosed. The PDU includes at least one power input configured to receive electrical power from an electrical supply equipment and/or a second power source. The PDU also includes an accessory power interface configured to provide power to the electrically powered accessory. The PDU further includes a vehicle power interface configured to provide power to a vehicle electrical system of the vehicle. Also the PDU includes at least one switch configured to selectively connect the at least one power input to a power bus, and selectively connect the power bus to at least one of the accessory power interface and the vehicle power interface. The PDU also includes a controller configured to control the at least one switch to provide power to the electrically powered accessory and/or the vehicle electrical storage device of the vehicle electrical system.

Abstract: Power systems and methods are provided that receive input power and provide output power to a load. Under a first state of operation, power conversion circuitry may receive the input power and provide the output power. A bypass switch includes a controller that detects a failure condition by detecting a link down state on a communications interface. In response to detecting the link down state, the switch controller operates the bypass switch to convey the input power to the output in a second state of operation. The second state of operation is a bypass state of operation whereby the power conversion circuitry is bypassed.

Abstract: In retrodirective wireless power delivery environments wireless power receivers generate and send beacon signals that are received by multiple antennas of a wireless power transmission system. The beacon signals provide the charger with timing information for wireless power transfers and also indicate directionality of the incoming signal. As discussed herein, the directionality information is employed when transmitting in order to focus energy (e.g., power wave delivery) on individual wireless power receiver clients. Techniques are described herein for reducing the burden of sampling the beacon signals across the multiple antennas and determining the directionality of the incoming wave. In some embodiments, the techniques leverage previously calculated values to simplify the receiver sampling.

Abstract: An antenna, configured for wireless power transfer, is disclosed includes an antenna molecule, the antenna molecule formed from a continuous conductive wire, the first continuous conductive wire extending from a beginning molecule terminal to an ending molecule terminal, the continuous conductive wire formed to define a plurality of coil atoms. The plurality of coil atoms includes a source coil atom in electrical connection with the beginning molecule terminal and the ending molecule terminal and one or more connected coil atoms in electrical connection with the source coil atom, each of the one or more connected coil atoms having, at least, an outermost turn. Each of the source coil atom and the one or more connected coil atoms partially overlap with one of the source coil atom or one of the one or more connected coil atoms.

Abstract: A power supply system includes an energy storage device electrically connected to a power grid, a power distribution assembly electrically connected to a load, and a power generation device electrically connected to the power distribution assembly. The energy storage device and the power grid are configured to supply electric power having a first voltage range to the power distribution assembly, which in turn, is configured to supply electric power having a second voltage range less than the first voltage range to the load. The energy storage device and the power generation device each are configured to at least temporarily supply a flow of electric power to the power distribution assembly when electric power from the power grid is interrupted such that a substantially uninterrupted flow of electric power is supplied to the load.

Abstract: Systems and methods are disclosed for wireless power delivery that can provide wireless power, via a retrodirective wireless power transfer (WPT) channel, to a wireless power recipient in response to a modulated backscatter signal from a wireless power receiver. A wireless power receiver can produce a modulated backscatter signal and transmit such to a power delivery system to initiate a wireless power transfer linkage. In some examples, a dual-band technique can be implemented where a first band can be used as a dedicated retrodirective WPT channel while a data communication node can utilize a second band for a low energy compatible data communication type. Both a beacon signal (the backscattered signal) for retrodirective linkage at the first band and the communication signals at the second band can be produced via backscattering at the wireless power receiver. A backscattered beacon signal and a communication signal may be modulated and frequency multiplexed.

Abstract: An antenna for wireless power transmission includes a source antenna molecule configured for wired electrical connection to one or more electrical components of a wireless power transmission system. The antenna further includes two or more repeater antenna molecules independent of the source antenna molecule, the two or more antenna molecules connected to one another via a wired, parallel electrical connection, the two or more antenna molecules configured as a repeater for wireless power transmission and configured to receive wireless power signals from the source coil and transmit repeated wireless power signals.

Abstract: An antenna configured for wireless power transmission has a puzzled configuration and has a first antenna molecule and a second antenna molecule. The first and second antenna molecules are formed to define a first and second pluralities of coil atoms. The pluralities of coil atoms include a first coil atom and a second coil atom, wherein the second coil atom is positioned substantially diagonally opposite with respect to the first coil atom. The first antenna molecule and the second molecule are overlain to form a first atom row and a second atom row and to form a first atom column and a second atom column. The first and second antenna molecules are substantially inverted versions of one another.

Abstract: A modular design structure of in-vehicle electrical appliances includes: a mobile power supply and a detachable device. The mobile power supply is disposed with an input interface and an output interface for power input and output, internally disposed with a power battery pack and a circuit control board and disposed with a mounting part including a top cover, a side wall of the top cover is disposed with a snap structure, an end of the top cover is disposed with current output contacts. The detachable device includes electrical modules each with a connecting part including a bottom cover, a side wall of the bottom cover is disposed with a notch matching with the snap structure, an end of the bottom cover is disposed with current input contacts matching with the current output contacts. Through modular design, the vehicle electrical appliance is smaller and convenient to carry.

Abstract: According to the integrated power conversion apparatus and method according to the exemplary embodiment of the present disclosure, the on-board battery charger (OBC), the lower voltage battery charger (LDC), and the traction converter (TC) are integrated to convert the power so that all the functions which need to be performed by the power conversion system of the related art can be performed. Further, the number of switches is reduced to increase a power density and not only the number of switches, but also the number of controllers is reduced to improve feasibility.

Abstract: A solar powered VTU and systems and methods for the same are provided. A solar energy harvesting device and an energy storage device are electrically connected to an electronic display within a housing. A support extends between the housing and the solar energy harvesting device such that a bottom surface of the solar energy harvesting device is elevated directly above, and is spaced apart from, a top surface of the housing. The solar energy harvesting device has a first footprint, and the housing has a second footprint. The first footprint is larger than, and directly overlies, the second footprint.

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: A rechargeable energy storage includes a battery pack having a plurality of battery modules between a negative terminal and a positive terminal. A backup network is electrically connected between the negative terminal and the positive terminal. The backup network includes a first diode and a second diode. A bypass junction located between a first portion of the battery pack and a second portion of the battery pack. The bypass junction electrically connects the battery pack and the backup network. The backup network is configured such that current flow is directed along a first pathway when open circuit state occurs in the first portion of the battery pack, and the current flow is directed along a second pathway when the open circuit state occurs in the second portion of the battery pack. The backup network enables powering of a designated load and/or a designated function during the open circuit state.

Abstract: A method of wireless power transmission is performed at a wireless-power-transmitting device having one or more antennas configured to transmit wireless-power signals, one or more processors, and a wireless data transceiver.

Abstract: According to one aspect of the present disclosure, there is provided a power converter apparatus that includes at least two switching bridges connected to a Direct Current (DC) bus and both generating pulse-width-modulated (PWM) voltages to non-isolated outputs, and an isolation transformer having a primary winding connected across the outputs of the two switching bridges and a secondary winding connected to isolated outputs. In a non-isolated mode, the two switching bridges are configured to operate in a parallel mode, and power is transferred between the DC bus and the non-isolated outputs. In an isolated mode, the two switching bridges are configured to operate in a full bridge mode, and power is transferred between the DC bus and the isolated outputs through the transformer.

Abstract: An apparatus is disclosed. The apparatus comprises a primary power supply (PPS) configured to supply primary power, a PPS sensor configured to measure the power supplied by the PPS and provide a PPS measurement signal indicating an amount of the power supplied by the PPS, a backup power supply (BPS) configured to be provided in an emergency data system and further configured to supply backup power to a modem, and an integrated circuit configured to maintain a clock using the power supplied by the PPS. The integrated circuit is configured to receive the PPS measurement signal from the PPS sensor, determine whether the PPS measurement signal falls below a threshold, and maintain the clock using the power supplied by the BPS in response to a determination that the PPS measurement signal has fallen below the threshold.

Abstract: Various systems are provided for a power supply system. In one example, the system includes a power distribution unit configured to receive power from a main power source and an uninterruptible power supply (UPS), wherein the UPS is configured to directly power an output AC load, the UPS is further configured to power an output DC load after coupled through one or more transformers.

Abstract: A property power system can include multiple photovoltaic (PV) panels to generate DC electrical energy from solar energy and a first power conversion module to convert between DC and AC electrical energy and to control aspects of each PV panel. The property power system can have a group of battery blades to store electrical energy and another power conversion module to convert between DC and AC electrical energy and to control aspects of each battery blade. The property power system can have a multiple synchronization interfaces configured to aggregate the AC electrical energy of each of the PV panels/battery blades, respectively, and to control delivery of the aggregated AC electrical energy. The property power system can include a grid circuit disconnector to prevent back-feed of power during grid outage condition while the PV panels or the group of battery blades is powering an electrical load center of the property.

Abstract: An inverter apparatus is disclosed in this application, which includes a plurality of protection units and a plurality of inverter units. For any protection unit, when a voltage at an input terminal of the protection unit is greater than a voltage at an output terminal of the protection unit, a path between the input terminal and the output terminal of the protection unit is in a forward conducted state; when the voltage at the output terminal of the protection unit is greater than the voltage at the input terminal voltage of the protection unit, the path between the input terminal and the output terminal of the protection unit is in a reverse cut-off state; and when a control terminal of the protection unit receives a first trigger signal, the path between the input terminal and the output terminal of the protection unit is in a reverse conducted state.