Abstract: An electronic card of a wireless communication charging circuit system includes a power reception coil, a power reception circuit, a power storage device, a charging circuit, a voltage conversion circuit that is connected to the power storage device and generates a prescribed power supply voltage, a communication antenna, a communication circuit that performs communication using output power of the voltage conversion circuit, and a control circuit that controls the voltage conversion circuit and the charging circuit. The control circuit sets a power path in a communication period so that the communication circuit performs communication and power used by a microcontroller is supplied from the power storage device, and sets a power path in a charging period so that a reader-writer device, which was made to recognize the communication circuit, generates a magnetic field and power used by the microcontroller is supplied from the power reception circuit.

Abstract: A roadway section for enabling dynamic wireless power transfer to a vehicle, including pavement material defining a driving surface for the vehicle, a wireless power charger including an electrically-conductive element embedded in the pavement material, and a shroud at least partially circumscribing the electrically-conductive element. The electrically-conductive element may be in electrical communication with a power supply and may emit a magnetic field for dynamic wireless power transfer to the vehicle. At least a portion of an external surface of the shroud has a macro-shaped non-planar cross-sectional profile integrating the shroud with the pavement material surrounding the shroud, thus assisting with adherence to the pavement material of the roadway section.

Abstract: A circuit device includes a charging circuit and a discharging circuit. The charging circuit is configured to supply a charging current to a battery based on a power supply voltage from a power supply node. The discharging circuit is provided on an output side of the charging circuit, and is configured to discharge a leakage current leaking from the power supply node to the output side of the charging circuit when supply of the charging current is off.

Abstract: An apparatus for switching between powering a load from a battery and powering the load from another power source includes a battery manager and a switched-capacitor network, wherein the switched-capacitor network comprises a plurality of capacitors, first and second switch sets, and a controller, wherein the controller causes the switched-capacitor network to transition between a first state and a second state.

Abstract: Methods, systems, and apparatuses for charging wearable devices are described herein. In some embodiments, an apparatus comprises a housing, a first inductive charging element, and an alignment element. The housing includes a concave wall that is configured to receive and contact an outer side of a ring-shaped device without covering or obscuring an inner side of the ring-shaped device. The first inductive charging element is disposed in the housing adjacent to the concave wall. The alignment element is disposed in the housing. The alignment element is configured to cause a second inductive charging element disposed in the ring-shaped device to align with the first inductive charging element such that the first and second inductive charging elements can charge a power source disposed in the ring-shaped device.

Abstract: A vehicle electrical system for a motor vehicle includes a high-voltage battery for providing a positive potential and a negative potential and a high voltage load. An insulation monitor monitors insulation resistances to a vehicle ground galvanically isolated from the vehicle electrical system. Between the positive potential and the vehicle ground and between the negative potential and the vehicle ground, a Y capacitor is provided in each case. A voltage center tap between the positive potential and the negative potential, which voltage center tap is present in the vehicle electrical system or in a component of the vehicle electrical system, is connected to the vehicle ground by an ohmic coupling resistor.

Abstract: A charging system can include a housing. The housing can include a controller. The housing also can include a power source configured to power the controller. The charging system also can include a wireless charger configured to transfer energy to the power source. The wireless charger can include a first non-flashing visual output at a first brightness. The wireless charger also can include a second non-flashing visual output at a second brightness. Other embodiments are disclosed.

Abstract: A method for a treatment of fault currents in a high-voltage battery connected to a charging station via a charging circuit in a motor vehicle is presented. An electric protective-conductor connection is established between a protective conductor on the charging station side and a protective conductor on the battery side, which is electrically insulated to the first high-voltage potential on the battery side and the second high-voltage potential on the battery side to connect the protective conductor on the battery side via the protective conductor on the charging station side to a ground potential on the charging station side for the high-voltage battery. Upon a fault condition, a fault current circuit forms via the charging station and the protective-conductor connection with a fault current supplied from the high-voltage battery. The fault current is reduced and/or limited by a fault current controller of the charging circuit for a predetermined minimum duration.

Abstract: The present disclosure provides a battery charger to which a battery pack may be coupled. The battery charger includes a housing, a terminal block, and a receptacle. The housing includes a battery receiving interface that defines a recess that extends inwardly toward a cavity defined in the housing. The terminal block is disposed in the recess. The receptacle is coupled to the battery receiving interface and a seal is interposed between the receptacle and the battery receiving interface. The battery receiving interface, the receptacle, and the seal cooperate to form a chamber between the terminal block and the cavity.

Abstract: A wireless charging system including a wireless charging receiver is provided. The wireless charging receiver may be configured to wirelessly receive electrical power from a wireless charging transmitter. The wireless charging receiver may include an inductor inductively coupled to the wireless charging transmitter, a rectifier connected to the inductor and configured to rectify a signal received from the inductor, a DC-DC converter configured to convert a DC signal received from the rectifier, a switching block configured to receive a common voltage generated from the DC-DC converter and including a first switch, and a first capacitor configured to receive the common voltage from the switching block and connected to the inductor at a first node, wherein the common voltage is not zero.

Abstract: A roadway section enables dynamic wireless power transfer to a vehicle and comprises pavement material and wireless power chargers. The pavement material extends along a longitudinal axis. The wireless power chargers are spaced apart along the longitudinal axis and include first, second and third conductive elements each being configured to emit a magnetic field. The second conductive element is adjacent to and spaced apart from the first conductive element at a first distance along the longitudinal axis. The third conductive element is adjacent to and spaced apart from the second conductive element at a second distance along the longitudinal axis that is longer than the first distance. The third conductive element is angled toward the second conductive element.

Abstract: A robotic work tool (1) is disclosed configured to operate in an area in an autonomous manner. The robotic work tool (1) comprises one or more rechargeable batteries (5) and a contact plate (3) configured to transfer electricity from a contact (4) of a docking station (8) to the one or more rechargeable batteries (5). The contact plate (3) comprises an edge surface (3?) configured to abut against the contact (4) of the docking station (8) upon movement of the robotic work tool (1) relative to the docking station (8) along a docking direction (d1). The contact plate (3) comprises a number of sections (s1-s5, b1-b4) each being angled relative to the docking direction (d1). The present disclosure further relates to a robotic tool system (10) comprising a robotic work tool (1) and a docking station (8).

Abstract: A device includes a data collection device for collecting real-time information of a plurality of charging stations, of at least one vehicle related to the plurality of charging stations, related to external environmental factors based on a specified period, a data storage device for updating and storing the real-time information of the plurality of charging stations, of the at least one vehicle, and related to the external environmental factors based on the specified period, a data processing device for generating processing information for selecting charging stations based on the real-time information of the plurality of charging stations, of the at least one vehicle, and related to the external environmental factors, and a data application device for generating a charging station list for recommending charging stations to an ego vehicle based on at least some of the processing information generated by the data processing device.

Abstract: A power supply that includes a battery pack, a sensor configured to sense an electrical characteristic of the battery pack, a reconfigurable voltage boost circuit configured to connect to an inverter, and a controller. The reconfigurable voltage boost circuit is configured to switch between a voltage doubler configuration and a voltage tripler configuration in response to a switching control signal based on the electrical characteristic of the battery pack. The controller is connected to the battery pack, the sensor, and the reconfigurable voltage boost circuit. The controller is configured to obtain the electrical characteristic of the battery pack from the sensor, compare the electrical characteristic to a switching threshold, and transmit the switching control signal to the reconfigurable voltage boost circuit based on the comparison of the electrical characteristic and the switching threshold to switch between the voltage doubler configuration and the voltage tripler configuration.

Abstract: One aspect of the present disclosure provides a battery pack including a rechargeable battery, a first power supply terminal, a second power supply terminal, a first signal terminal, a second signal terminal, a positive-side current path, a negative-side current path, a temperature signal generation circuit, a biasing circuit, and a control circuit. The temperature signal generation circuit (i) includes a temperature detection device and (ii) generates a temperature signal across the first signal terminal and the second signal terminal. The temperature detection device has a variable resistance that is dependent on a battery temperature. The temperature signal has a voltage associated with the variable resistance. The biasing circuit biases the voltage of the temperature signal. The voltage biased makes an external device reduce or stop (i) charging from the external device to the rechargeable battery and/or (ii) discharging from the rechargeable battery to the external device.

Abstract: A wireless charger includes a charging base, a connector, and a cable. The charging base is connected to the connector through the cable. The charging base includes a first housing and a transmitting coil disposed in the first housing. The wireless charger further includes a boost circuit and an inverter circuit. The boost circuit is disposed outside the first housing, and is configured to boost a direct current voltage signal input through the connector. The inverter circuit is disposed between the boost circuit and the transmitting coil, and is configured to convert a boosted direct current voltage signal into an alternating current voltage signal, and transmit the alternating current voltage signal to the transmitting coil. The transmitting coil is configured to convert electric energy of the alternating current voltage signal into electromagnetic energy for wireless transmission.

Abstract: A power supply device according to an embodiment of the present disclosure includes: a connector connected to a charging and power supply port of a vehicle having a power storage device; a charging path for supplying power from a power supply PS to the vehicle through the connector to charge the power storage device; a power supply path for supplying power from the power storage device to the outside of the vehicle through the connector; a signal line connected to the vehicle through the connector; a resistance circuit having one end connected to a GND potential and having a resistance value R1; a resistance circuit having one end connected to a GND potential and having a resistance value R4; and a changeover switch for switching a state of connecting the signal line and one of the other end of the resistance circuit and the other end of the resistance circuit.

Abstract: A battery circuit including: a cell group composed of a plurality of battery cells C connected in series; a resistor group composed of a plurality of resistors R connected in series; and a connection/disconnection section configured to connect the cell group to the resistor group disconnectably, in which the connection/disconnection section is configured to be capable of changing a number of the resistors R connected in series to any one target cell of the plurality of battery cells C.

Abstract: Methods and systems for charging a device. The method may include providing a first housing including a first transceiver and a second transceiver, wherein each of the first transceiver and the second transceiver can function as both a wireless power receiver and a wireless power transmitter. The method may further include providing an orientation sensor configured to sense a magnetic orientation of an external device and enabling a first control logic to control the functioning of at least one of the first and second transceiver based at least on the magnetic orientation of the external device.

Abstract: A vehicle charging control system and a method therefor are provided. The vehicle charging control system includes a vehicle that identifies whether a distance to empty (DTE) is changed based on charging at a location of a first charging station among at least one charging station. The vehicle transmits state information of the first charging station, which is obtained based on whether the DTE is changed, through a communication module. The system also includes a server that receives the state information of the first charging station from the vehicle and notifies the vehicle of whether the first charging station is available based on the state information of the first charging station.