Abstract: An electric vehicle charging station detects a property of a charging cable connected to the electric vehicle charging station and determines, based on the detected property, an ampere capacity of the charging cable. The electric vehicle charging station automatically sets a maximum amperage output of the electric vehicle charging station to not exceed the determined ampere capacity of the charging cable.

Abstract: A battery system includes a first battery pack, a second battery pack, a bidirectional power converter, and a current controller. The first battery pack includes at least one first battery cell. The second battery pack is connected to the first battery pack in parallel and includes at least one second battery cell. The bidirectional power converter is connected between the first battery pack and the second battery pack. The current controller sets a discharge current limit of the first battery pack based on a state of charge of the first battery pack and controls the bidirectional power converter to cause the first battery pack to output a discharge current that is less than or equal to the discharge current limit.

Abstract: Methods and devices are disclosed for efficient power charging of a battery in one electronic device by another electronic device. In one embodiment, a method may include establishing an electrical connection between a first electronic device and a second electronic device; acquiring, by the second electronic device via the electrical connection, real-time charging voltage information of a battery in the first electronic device, wherein the real-time charging voltage information varies with a charge state of the battery in the first electronic device; and controlling by the second electronic device, during charging of the battery in the first electronic device by the second electronic device, an output voltage of the second electronic device to charge the battery of the first electronic device according to the real-time charging voltage information.

Abstract: A quick charging control method and system are suitable for mobile terminals. The method includes: a first controller obtaining a voltage value of a cell, and sending the voltage value to a second controller; the second controller searching a threshold segment table to find a current regulation instruction matched with a threshold segment containing the voltage value of the cell, and sending the current regulation instruction to a regulation circuit; the regulation circuit performing a current regulation according the current regulation instruction, and outputting a power signal; the second controller sending a second switch-off instruction to the first controller and a second switch circuit respectively if second abnormal charging information is detected; and the second switch circuit, controlling the charging adapter to stop sending the power signal after the current regulation if the second switch circuit receives the second switch-off instruction.

Abstract: A magnetic sheet 1 of an embodiment includes a stack of a plurality of magnetic thin strips and resin film parts. The stack includes from 5 to 25 pieces of the magnetic thin strips. The magnetic thin strips are provided with cutout portions each having a width of 1 mm or less (including 0 (zero)). A ratio (B/A) of a total length B of the cutout portions provided to the magnetic thin strip to a total outer peripheral length A of an outer peripheral area of the magnetic thin strip arranged on one of the resin film parts is in a range of from 2 to 25.

Abstract: An electric tool may include a battery mount portion having a guide groove structure that can be slidably fitted with a guide projection structure of a rechargeable battery. A reinforcing member may be attached to the guide groove structure of the battery mount portion and may include a connecting structure for detachably connecting the reinforcing member to the guide groove structure.

Abstract: Methods and devices are disclosed for efficient power charging of a battery in one electronic device by another electronic device. In one embodiment, a method may include establishing an electrical connection between a first electronic device and a second electronic device; acquiring, by the second electronic device via the electrical connection, real-time charging voltage information of a battery in the first electronic device, wherein the real-time charging voltage information varies with a charge state of the battery in the first electronic device; and controlling by the second electronic device, during charging of the battery in the first electronic device by the second electronic device, an output voltage of the second electronic device to charge the battery of the first electronic device according to the real-time charging voltage information.

Abstract: Provided battery systems include a plurality of battery electronic control units, each associated with a battery pack of a plurality of battery packs. Each battery electronic control unit is adapted to acquire analog current measurements of the associated battery pack and to convert the acquired analog current measurements to a digital value such that the plurality of battery electronic control units produce a plurality of digital values. The system may sum the digital values, or may process pulse-width modulated signals, analog signals and so forth. A battery system electronic control unit is adapted to receive and monitor the plurality of digital values and to determine a total battery system current value based on the received plurality of digital values.

Abstract: An electrical contact assembly includes a first electrical contact having a first mating element, and a second electrical contact having a second mating element. The first and second electrical contacts are configured to mate together at the first and second mating elements such that the first and second mating elements engage each other at a contact interface. A distribution of contact pressure across the contact interface at least partially coincides with a distribution of electrical current flow across the contact interface.

Abstract: A charging accessory (104) is provided. The charging accessory (104) comprises a mechanical attachment device, such as a clip (110), and a receive coil (112) integrated within the clip, the receive coil for receiving a wireless charging signal (118). A wearable lanyard (126) is coupled to the clip (110) for transferring power and charging signals. The charging accessory (104) can be worn and operated within a charging system (100) to power and charge a wearable electronic device (102).

Abstract: Disclosed is a power source device having a standby power-cutoff function, which is to be used to charge a battery. The power source device comprises: a micro-USB connector (24) for connecting to the power source unit (20) of a smartphone when the battery of the smartphone or the like is to be charged; and a power generation unit (32) supplying DC charging power to the smartphone (20) from an AC input power source. The present invention includes: a control unit (33) having at least one microprocessor for controlling the overall operation and functioning of a power source device (30); a power supply/cutoff unit (34) supplying/cutoff the AC input power to the power generation unit (32) according to the control of the control unit (33); and a current-sensing unit (CT) connected so as to monitor the current from the power supply/cutoff unit (34), provide the control unit (33) with the current, and provide an indication of the charging state of the battery.

Abstract: The present application concerns handheld electrical generators for charging mobile electronic devices. In one representative embodiment, a manually powered generator for charging a mobile device comprises a first magnet array having a plurality of magnets arrayed in an annular formation on a first surface, a second magnet array having a plurality of magnets arrayed in an annular formation on a second surface positioned opposite the first surface, and a torque input member. The generator further comprises a rotor having a serpentine trace of conductive material disposed between the first and second magnet arrays. The generator is configured to be incorporated into a handheld case or shell for containing the mobile device.

Abstract: A system to recharge a battery including a first current-voltage source to generate a first signal, a second current-voltage source to generate a second signal, a first inductor-capacitor circuit to generate the first DC current-voltage signal using the first signal, a second inductor-capacitor circuit to generate the second DC current-voltage signal using the second signal, wherein the first and second inductor-capacitor circuits are spaced apart by a predetermined distance. The system also includes a temperature sensor adapted to generate temperature data during the charging operation, and control circuitry configured to: (i) determine whether the first temperature data is out-of-specification, and (ii) generate one or more control signals to adjust the first and second DC current-voltage signals, in response to the first temperature data being out-of-specification.

Abstract: A control device for a secondary battery using positive electrode active material made of solid solution material, comprising: a voltage detecting unit configured to detect an actual open circuit voltage value; an SOC detecting unit configured to detect an actual state of charge value on a basis of the actual open circuit voltage value and/or an actual current value; a memory unit configured to store a voltage-SOC standard control curve which shows a relation between an open circuit voltage value and a state of charge value; a presumed voltage calculating unit configured to calculate a presumed voltage value on the basis of the actual state of charge value and the voltage-SOC standard control curve stored in the memory unit; a determining unit configured to determine sameness between the actual voltage value detected by the voltage detecting unit and the presumed voltage value calculated by the presumed voltage calculating unit.

Abstract: A robotic work tool system (200), comprising a charging station (210), a boundary wire (250), a signal generator (240) for generating and transmitting a signal through said boundary wire (250) for demarcating a work area (205) and for generating a magnetic field (265) for guiding a robotic work tool (100) to said charging station (210), said robotic work tool (100) being configured to detect a magnetic field strength of the magnetic field (265) in the work area (205), direct itself towards an increasing magnetic field strength, determine that the robotic work tool (100) is unable to reach the charging station (210), inform the robotic work tool system (200) accordingly, whereby the robotic work tool system (200) is configured to adapt a current level of the signal generating the magnetic field (365).

Abstract: It is possible to accurately estimate a starting current and calculate a precise starting minimum voltage without being influenced by a change in a storage battery state or a starting state by updating a current/voltage correlation characteristic corresponding to a deterioration state of a storage battery each time a current/voltage data set obtained when a starter is driven is newly stored in association with the deterioration state of the storage battery and by calculating the starting current corresponding to a present voltage immediately before start in accordance with the current/voltage correlation characteristic corresponding to the present deterioration state of the storage battery when determination is made as to whether or not to drive the starter.

Abstract: A vehicle power system includes a traction battery and a battery charger. The battery charger has an electrical output and a capacitor electrically connected with the electrical output. No more than two electrical contactors are electrically connected with the traction battery, capacitor and battery charger.

Abstract: A portable device for charging and discharging batteries simultaneously via having a servomotor controlled automatically by a microcontroller unit using a software is described. The servomotor arm is controlled and a circuit is open or closed at the command of the software based upon the voltage of each one of the batteries connected to the device; the temperature of electrical wires of the circuit and the amperage of the battery or batteries being charged. A second device for charging/discharging batteries is described having a servomotor arm controlled automatically by a microcontroller unit using a software. The servomotor arm is controlled during the charging/discharging process, which is carried out in two independent circuits in an alternated manner by moving the servomotor arm from one circuit to another based upon the same mentioned parameters.

Abstract: A double-sided LCC compensation network and a tuning method are proposed for a wireless power transfer system. With the proposed topology, the resonant frequency is independent of coupling coefficient and load conditions. The parameter values are tuned to realize zero voltage switching (ZVS) for the sending side switches. A wireless charging system with up to 7.7 kW output power was designed and built using the proposed topology and achieved 96% efficiency from DC power source to battery load.

Abstract: A system for charging at least one energy reservoir cell in a controllable energy reservoir for controlling/supplying electrical energy to an n-phase electrical machine. The controllable energy reservoir has n parallel energy supply branches each having at least two series connected energy reservoir modules, each encompassing at least one electrical reservoir cell having an associated controllable coupling unit. The energy supply branches are connectable to a reference bus and a respective phase of the machine. As a function of control signals, the coupling units interrupt the respective energy supply branch or bypass the cells or switch the associated cells into the respective energy supply branch. To enable charging of at least one cell, at least two phases of the machine are connectable via at least one respective freewheeling diode to a positive pole of a charging device, and the reference bus is connectable to a negative pole of the device.