Abstract: A wireless charging control apparatus is mounted on a power transmission side apparatus which is provided with: a power transmission unit (102); and a power transmission circuit (113, 114, 115) electrically connected to the power transmission unit and electrically connected to a high-frequency alternating current (AC) power supply (103). The wireless charging control apparatus is provided with: an obtaining device (111) configured to obtain a demand signal indicating a power transmission demand; a controlling device (111) configured to control the power transmission circuit such that electric power is transmitted at a first output voltage from the power transmission unit to a power reception unit (202) of a power reception side apparatus in such a condition that the demand signal is obtained; and a receiving device (112) configured to receive a restoration signal indicating that the power reception side apparatus in a standby state is restored to a start state.

Abstract: To provide a small and light-weight writing instrument that can accurately read information written down on a display portion as electronic information. A pen-shaped device which includes a battery capable of being charged wirelessly from the outside, a first sensor which detects whether a pen nib has contact with a surface, a second sensor which detects movement of the pen nib in contact with the surface, a control circuit which is electrically connected to the first sensor and the second sensor, and a memory which is electrically connected to the control circuit, where the first sensor, the second sensor, the control circuit, and the memory operate by supply of electric power from the battery.

Abstract: An apparatus for charging a plurality of series connected battery cells, includes a first and second input terminals for providing a charging voltage to the plurality of series connected battery cell. A transformer includes a primary side associated with the charging voltage and a secondary side includes a plurality of portions. Each of the plurality of portions is connected across at least one of the plurality of series connected battery cell. A switch in series between each of the plurality of portions of the secondary side and the at least one of the plurality of series connected battery cells increases an impedance between the portion of the secondary side and the associated one of the plurality of series connected battery cells in a first state and decreases the impedance between the portion of the secondary side and the associated one of the plurality of series connected battery cells in a second state.

Abstract: An apparatus for generating injection current for a fuel cell stack includes a first converter configured to convert direct current of a voltage corresponding to a high voltage battery, into direct current of a predetermined voltage; a second converter configured to convert the converted direct current into alternating current; a filter configured to filter a signal of a predetermined frequency band from the converted alternating current; and a control unit configured to perform a feedback control to allow the filtered alternating current to be injected without being distorted when injecting the filtered alternating current into the fuel cell stack.

Abstract: Method, device and system for charging electric vehicles. Carrying out 28 on the vehicle side a charging process at a charging station, emitting 30 on the vehicle side an item of information about the charging process and receiving 24 on the vehicle side a current contract key after the emission on the vehicle side of the information about the charging process are proposed for identifying an electric vehicle to a billing center.

Abstract: Provided are wireless charging equipment, a terminal, a wireless charging system comprising the same, a control method thereof, and a non-transitory computer readable storage medium having computer program recorded thereon. That is, the present invention performs a charging function based on a charging signal in the corresponding terminal by transmitting the charging signal to only the terminal corresponding to a communication provider or an affiliated company pre-registered in the wireless charging equipment to provide a charging function to only the pre-registered terminal with respect to a terminal to use a wireless charging infrastructure, easily and conveniently perform an authentication function for the terminal without a separate additional component, and improve operation efficiency of the entire wireless charging system.

Abstract: A battery management system can be provided which can include a plurality of battery management units connected in series and a host controller. Each battery management unit can include a battery cell, an isolation element, and at least one bypass element. The isolation element is connected with the battery cell in series, and the battery cell is isolated by turning off the isolation element. The bypass elements can be in parallel connection with the battery cell and isolation element, and the battery cell is bypassed by turning on the bypass element. A battery management method can include: activating the battery cell of the battery management unit by turning on the isolation element and turning off the bypass elements of the battery management unit; and deactivating the battery cell of the battery management unit by turning off the isolation element and turning on the bypass elements of the battery management unit.

Abstract: A device and a method are provided. In a terminal capable of at least one of a wireless charging function and a near field communication (NFC) function, the device displays operation states of the functions via an e-skin unit. Wireless charging efficiency, a charging state, and a communication state may be selectively or totally displayed to a user.

Abstract: The invention is directed to a system for controlling battery current. In some embodiments, the system comprises a first lithium-ion (Li-ion) battery, the first battery having a first state-of-charge (SOC) and comprising a first battery controller and a first battery charger; and a second Li-ion battery in series with the first battery, the second battery having a second SOC and comprising a second battery controller and a second battery charger. In some embodiments, at least one of the first battery controller or the second battery controller controls a charge current flowing through at least one of the first battery and the second battery, wherein control of the charge current is transferred from the first battery to the second battery based at least partially on whether an overhead voltage is present across the first battery charger or the second battery charger.

Abstract: A protection circuit for protecting a secondary battery includes a controller that closes a charging path for charging the secondary battery with a charger when a charge preventing condition is satisfied, the charging path being between a terminal of the secondary battery and an input-output terminal for connecting the charger and an electronic apparatus, opens the charging path when a discharging current from the secondary battery to the electronic apparatus is detected while the charge preventing condition is satisfied and the charging path is closed, and temporarily closes the charging path when a predetermined period of time passes after the charging path is opened, to determine whether the discharging current is flowing.

Abstract: A delayed power-on function for an electronic device is disclosed. A charging unit charges a rechargeable battery with a pre-charge current when a voltage of the rechargeable battery is less than a voltage threshold value and with a current larger than the pre-charge current when the voltage of the rechargeable battery is greater than the voltage threshold value. A controller can disable power-on when the voltage of the rechargeable battery is less than the voltage threshold value. A user may also be notified when power-on is disabled.

Abstract: A multi-diameter clamp for clamping on tires of different sizes is provided. The multi-diameter clamp comprises at least one clamping unit, at least one actuator, and at least one sensing unit. The at least one clamping unit further includes at least one movable member and a fixed member. Wherein the at least one movable member moves within a tire housing space having a starting position and a clamping position. The tire housing space locates between the movable member and the fixed member for clamping on a tire. The at least one actuator connects to the at least one movable member, and enables the at least one moveable member to move between the starting position and the clamping position. The at least a sensing unit obtains a diameter size of the tire, and based on the diameter size, actuates the at least one actuator corresponding to the diameter size.

Abstract: A vehicle alignment system is adapted to align a vehicle with a wireless power induction coil for wireless charging through use of magnetic resonant induction. The system includes a leaky transmission line disposed so as to align the vehicle left-right in a parking slot containing the wireless power induction coil when the vehicle is aligned for charging by the wireless power induction coil. At least two vehicle mounted antennas mounted on opposite sides of a left-right center line through the wireless power induction coil when the vehicle is aligned in the parking slot containing the wireless induction coil receive the operating frequency from the leaky transmission line, and signal processing circuitry detects a relative signal phase between signals induced by switching between antennas on opposite sides of the leaky transmission line.

Abstract: Systems and methods of providing integrated battery protection for a plurality of series-connected batteries, in which a plurality of controllable switches are used to disconnect or otherwise isolate the respective batteries, substantially simultaneously, from an external circuit in response to certain fault or non-fault battery conditions. When the plurality of controllable switches are synchronously transitioned from a closed or “ON” state to an opened or “OFF” state, the voltages of the respective batteries become distributed among the controllable switches, allowing for the use of switches having a reduced voltage rating as well as a reduced cost. By connecting a balancing resistor across each of a plurality of series-connected battery/switch pairs, a more even distribution of the voltages of the respective batteries among the controllable switches can be achieved, providing the system with more predictable operation.

Abstract: An electronic device and a power adapter are provided. The power adapter comprises a power circuit, a main control circuit, a potential adjustment circuit, a current detection circuit, a voltage detection circuit and an output switch circuit. When a conventional charging or a quick charging is performed on the battery in the electronic device, the main control circuit determines whether the output current of the power adapter is greater than a current threshold according to the current detecting signal and determines whether the output voltage of the power adapter is greater than a voltage threshold according to the voltage detecting signal; if the output current of the power adapter is greater than the current threshold and/or the output voltage of the power adapter is greater than the voltage threshold, the main control circuit controls the output switch circuit to turn off the direct current output of the power adapter.

Abstract: Method and system for wireless power transmission are disclosed. In one aspect, the system includes a charging base positioned on a desktop component and configured to be positioned on a desktop. The system also includes a transmitter located in the charging base and including a transmit coil wound about a plane, the transmitter being configured to wirelessly transfer power, via a wireless field, from the transmit coil to a first receiver. The system further includes a power relay configured to be positioned on the desktop and configured to relay power received from the transmitter to at least one peripheral device different from the first receiver when the peripheral device is positioned on the desktop.

Abstract: A battery management system for a battery module string includes battery modules. The battery modules are electrically connectable to poles of the battery module string and individually electrically disconnectable. The battery module string is configured to generate an AC voltage by disconnecting and connecting the battery modules. The battery management system is configured to assign a respective first time period to each first battery module of the battery modules based on position of each first battery module in a battery module list. Each of the first battery module is electrically connected within a half-cycle of the AC voltage during the respective first time period.

Abstract: A portable power charger having an internal rechargeable battery is provided with a power connection port than can act in a power input mode when the charger is connected with an external power source via the power connection port and in a power output mode when at least one electronic device is connected to the charger via the power connection port. The power charger may be connected with both an external power source and an electronic device via the power connection port at the same time, wherein the charge supplied from the external power source recharges the charger and any electronic device connected to the charger. The charger also can automatically turn on if a connector cable is connected to the power connection port with either an external power supply or an electronic device connected at the other end of the cable to supply or draw power through the cable.

Abstract: A charging and discharging system includes a vehicle, a cable, and a charging and discharging device. The vehicle includes an electric storage device, a first fuse, and an inlet. The cable includes a connector, a second fuse, and a power line. The charging and discharging device is configured to convert AC power supplied from a commercial AC power source into DC power and to supply the DC power to the electric storage device via the cable in a charging mode. The charging and discharging device is configured to convert DC power supplied from the electric storage device via the cable into AC power and to supply the AC power to a load in a discharging mode. The first fuse is configured to be melted and cut earlier than the second fuse when the power line causes a short circuit in the discharging mode.

Abstract: A method includes: receiving vehicle information from a wireless charging-capable vehicle via a wireless communication means; calculating an air gap between a primary coil of a wireless charging system that is operable to wirelessly charge the vehicle and a secondary coil of the vehicle based on the received vehicle information; and causing electric current to flow only through a portion of the primary coil having a size that is less than or equal to a size of the entire primary coil. The size of the portion of the primary coil through which the electric current flows is determined based on the calculated air gap between the primary coil and the secondary coil.