Abstract: A portable electronic device with a battery switching function is provided. The portable electronic device has two battery switching assemblies corresponding to each battery. Each battery switching assembly has a primary fastener and a secondary fastener corresponding to each other. When the primary fastener is engaged with the secondary fastener, the secondary fastener engages with the corresponding battery so that the battery cannot be detached from the casing of the portable electronic device. When the primary fastener and the secondary fastener are disengaged, the Hall sensor corresponding to the primary fastener sends a signal to a control unit. Then the control unit turns off the power supply of the corresponding battery and switches to another battery to supply power, or closes a specific application to reduce power consumption.

Abstract: A wireless power transmission method including receiving, from a wireless power receiver, a first foreign object status packet and a second foreign object status packet; and transmitting, to the wireless power receiver, a foreign object detection indicator indicating whether a foreign object is present in a charging area of a wireless power transmitter, wherein the first foreign object status packet includes a first reference value and mode information, wherein the second foreign object status packet includes a second reference value and mode information, wherein the mode information of the first foreign object status packet indicates whether the first reference value is a reference quality factor or a reference peak frequency of the wireless power receiver, and wherein the mode information of the second foreign object status packet indicates whether the second reference value is the reference quality factor or the reference peak frequency of the wireless power receiver.

Abstract: A control device that is mounted on a vehicle including a power storage device, the control device includes a processor. The processor is configured to, when external charging and update of software used in the vehicle are executed in parallel, reduce charging power in the external charging such that a predicted update time needed for the update of the software is less than a predicted charging time needed for the external charging in a case where a time condition is satisfied in which the predicted update time is equal to or longer than the predicted charging time, the external charging being charging of the power storage device using power from an external power source that is provided outside of the vehicle.

Abstract: The invention refers to an electronic device (10; 10a; 10b) comprising two or more battery packs (18a, 18b), an electric motor (16) which is operated by electric energy from at least one of the battery packs (18a; 18b) at a time, and an electronic control unit (20) for controlling operation of the electric motor (16). It is suggested that the electronic control unit (20) is adapted for switching operation of the electric motor (16) cyclically and consecutively from at least one battery pack (18a; 18b) to at least one other battery pack (18b; 18a). Switching form one operation cycle to the next operation cycle may be effected depending on the current temperature (T) of the at least one battery pack (18a, 18b), on an electric current (1) drawn from the at least one battery pack (18a, 18b) during the current operation cycle, or on a duration (t) of continuous operation of the at least one battery pack (18a, 18b) during the current operation cycle.

Abstract: Disclosed is a system for managing a vehicle battery that is chargeable/dischargeable and stores energy for driving a vehicle driving motor. The system for managing the vehicle battery as disclosed includes a controller that measures a polarization voltage of each of a plurality of battery cells in a vehicle battery after charging of the vehicle battery is terminated, and determines whether each of the plurality of battery cells is abnormal based on the measured polarization voltage.

Abstract: A wireless charger includes a base, a first transmitter, a driver circuit, a controller and an energy radiation member. The first transmitter coil is fixed in the base. The driver circuit is disposed in the base. The controller is disposed in the base and connected to the driver circuit. The energy radiation member is detachable from the base and connected to the base through a wire, and the energy radiation member comprises a second transmitter coil. In the case that the energy radiation member and the base are in a separated state, the driver circuit drives, under control of a control signal from the controller, the first transmitter coil and the second transmitter coil to operate.

Abstract: Aspects of the disclosed technology include techniques, a mechanism, and an apparatus for diagnosing a battery. One or more processors may measure voltages of a plurality of batteries and, based on the measured voltages, determine a voltage deviation of the plurality of batteries. The one or more processors may determine a voltage deviation variation of each battery of the plurality of batteries at predetermined times periods and may compare a pattern of the voltage deviation variations of each battery of the plurality of batteries with a preset diagnosis pattern to diagnose a state of each of the plurality of batteries.

Abstract: Control system for facilitating wireless charging of an electronic device is provided, which identifies presence of multiple electronic devices within an environment, with the multiple electronic devices including a self-propelled power relay device with wireless charging capability. Control system processing determines that an electronic device of the multiple electronic devices requires wireless charging, and based on the determining, deploys the self-propelled power relay device to move to an area of the environment within a charging range of the electronic device to facilitate wireless charging of the electronic device via the self-propelled power relay device.

Abstract: A system including a power device and a portable device for wireless charging of a battery of the portable device, which power device includes a first transmitter stage and a second transmitter stage. The first transmitter stage includes an antenna configured to receive power adjustment information from a first receiver stage of the portable device to increase or to decrease the power transmitted by a first magnetic field emitted with the antenna of the first transmitter stage. The first receiver stage includes an antenna exposed to the first magnetic field and connected via a matching stage to a rectifier stage to rectify an antenna signal and to provide an input voltage at an input pin of a charge stage that provides a first charge current at a first output pin connected to the battery to charge the battery in charging cycles.

Abstract: A device for charging an electric vehicle includes a charging inlet for receiving charging information and power from electric vehicle supply equipment (EVSE); a control module for determining a charging mode on the basis of the charging information, and outputting a control signal according to the determined charging mode; and a charging unit for charging a battery of the electric vehicle according to the control signal from the control module.

Abstract: A foldable holder for a portable electronic device, including multiple support members, and a pivot member for pivoting each adjacent two support members. Each support member includes a plate body; each of at least two support members further includes a wireless charging device disposed in a corresponding plate body. The pivot member is arranged with a first pivot structure and a second pivot structure, a pivot axis of the first pivot structure being offset with respect to a pivot axis of the second pivot structure. In a structure in which the pivot member is pivoted to adjacent two plate bodies, the first pivot structure is pivoted to one of the adjacent two plate bodies, and the second pivot structure is pivoted to the other of the adjacent two plate bodies; the foldable holder is capable of being in a bent support state or a laying support state.

Abstract: A wireless power transmitter that transmits power to a wireless power receiver, the wireless power transmitter including a wireless communication unit configured to communicate with the wireless power receiver; and a controller, wherein the wireless communication unit receives, from the wireless power receiver, a first foreign object status packet and a second foreign object status packet and transmits, to the wireless power receiver, a foreign object detection indicator indicating whether a foreign object is present in a charging area of the wireless power transmitter, wherein the controller is configured to generate the foreign object detection indicator, wherein the first foreign object status packet includes a first reference value and mode information, wherein the second foreign object status packet includes a second reference value and mode information, wherein the mode information of the first foreign object status packet indicates whether the first reference value is a reference quality factor or a re

Abstract: A device charging system includes a legacy battery-powered mobile electronic device configured for wired-only charging and a wireless charging enabled battery pack. The wireless charging enabled battery pack may contain one or more battery cells as well as a power management integrated circuit (IC) configured to manage charging of the battery cells. The wireless charging enabled battery pack also contains a wireless power module to receive power wirelessly from a WPT (wireless power transfer) power source outside of the legacy device. In keeping with embodiments of the disclosure, a pack microcontroller in the battery pack interfaces to the legacy device, presenting an interface consistent with a wired-only charged battery pack.

Abstract: An energy storage system including an energy storage string formed by rechargeable cells connected in series and an energy management device including a master control unit and at least a first local control unit associated to a first rechargeable cell. A storage string connecting circuit is coupling a positive string terminal with a negative string terminal and a cell connecting circuit is coupling a positive and a negative cell terminal of the first rechargeable cell. The storage string connecting circuit includes a first capacitor device forming with the energy storage string a first closed-loop LC-circuit, and/or the cell connecting circuit includes a second capacitor device forming with the first rechargeable cell a second closed-loop LC-circuit. A master AC signal generator and a local signal generator are configured for generating a first and a second AC pulse in respectively the storage string connecting circuit and the cell connecting circuit.

Abstract: A wireless energy transmission device and system. The wireless energy transmission device comprises a substrate, a feed layer and dielectric resonant component. The feed layer is formed on the substrate and has a signal feed-in part and an antenna part formed on the feed layer. Wherein an signal feed-in part is used to introduce the energy transmission signal and the energy transmission signal is emitted by the antenna part. The dielectric resonant component is disposed on the feed layer, and the dielectric resonant component covers the antenna part.

Abstract: An indexed sequence of bits in a buffer is allocated for tracking a battery charging state. The indexed sequence of bits has a first number of bits. A battery voltage of a rechargeable battery is sampled at a sampling rate. For each sampled battery voltage, the battery voltage is compared with a voltage threshold. A next bit position in the indexed sequence of bits is identified. In accordance with a determination that a comparison result is true, a predefined first value is added to the next bit position. A second number of bits that are filled with the predefined first value is determined. A ratio between the second number and the first number is also determined. In accordance with a determination that the ratio exceeds a threshold step-down ratio, a battery charge voltage is stepped down. The rechargeable battery is charged to a step-down voltage.

Abstract: Electronic apparatuses according to embodiments of the present technology may include an electronic device a first surface and a second surface opposite the first. The electronic device may include a battery and a wireless charging coil within an interior volume of the device. The electronic device may include a first magnetic conductor and positioned between the battery and the wireless charging coil. The electronic device may also include an integrated circuit coupled with the battery and the wireless charging coil. The apparatuses may include a case extending about the electronic device. The case may be characterized by a first surface and a second surface. The case may be characterized by a thickness between the first surface of the case and the second surface of the case. The case may include a second magnetic conductor incorporated within the thickness of the case at the second surface of the case.

Abstract: A method, apparatus and computer program for supplying power through grouping of charging modules for electric vehicle are provided. A method for supplying power through grouping of charging modules for electric vehicle according to various embodiments of the present disclosure, the method being performed by a computing apparatus, the method includes outputting a first signal in response to receiving power from a power source; collecting a plurality of second signals output in response to each of external plurality of charging modules receiving power; and selecting at least one charging module from among the plurality of charging modules using a parameter of the first signal and the plurality of second signals, and grouping into one group with the selected at least one charging module.

Abstract: An airflow charging system and vehicle include a turbine, a driveline pulley and a driving belt, a main charging pulley and a charging belt, a processor, and a memory. The turbine is configured to rotate the driveline pulley, and the driveline pulley is operably connected to an electric motor. The main charging pulley is operably connected to the electric motor, and rotation of the main charging pulley is configured to charge a battery. The battery provides power to the electric motor. The memory includes instructions stored thereon, which, when executed by the processor, cause the system to receive a first signal indicating that the vehicle is in motion, operate the electric motor to rotate the turbine, receive a second signal from the vehicle indicating a vehicle speed, and, if the vehicle speed is greater than or equal to a predetermined speed, stop operating the electric motor.

Abstract: The disclosed technology provides a system for transmitting wireless power for charging electronic devices, e.g., smartphones, medical appliances, industrial equipment, and robotics. Some embodiments include parallel tuned resonant LC networks, load networks, and impedance matching networks for Class D and E, single-ended or differential, amplifier topologies for wireless power transfer in resonant inductive systems.