Abstract: A battery charger includes a housing and a plurality of charging ports coupled to the housing. Each charging port is configured to connect a battery pack to the battery charger. The battery charger also includes a charging circuit positioned within the housing and electrically coupled to the plurality of charging ports. The charging circuit is operable to charge the battery packs connected to the plurality of charging ports in series. The battery charger further includes a skip switch coupled to the charging circuit. The skip switch is operable to skip a battery pack currently being charged and advance to another battery pack connected to the battery charger.

Abstract: The described technology relates to a power supply and a battery pack including the same. In one embodiments, the power supply includes an input terminal configured to receive input power, a regulator configured to reduce a voltage of the input power, and a sensing circuit configured to sense an output voltage of the regulator. The power supply also includes a reference voltage controller configured to receive the input power as driving power and to feedback-control the output voltage of the regulator to correspond to a preset reference voltage, based on the sensed output voltage. The power supply further includes a switch arranged between the input terminal and the reference voltage controller and configured to control the driving power applied to the reference voltage controller.

Abstract: A communication apparatus includes communication means for performing radio communication with a partner apparatus, and supply means for wirelessly supplying power to the partner apparatus. The communication apparatus acquires information on a communication circuit for radio communication in the partner apparatus, and controls the supply means so as to determine an amount of power to be supplied per unit time depending on the information.

Abstract: The present invention discloses a mobile phone APP control-based energy-saving charger, including a bridge rectifier circuit, a switch control circuit, a high-frequency transformer, and a low-voltage output circuit that are sequentially connected in series. The charger further includes: an electronic switch connected in series between the bridge rectifier circuit and the switch control circuit, an APP signal demodulation circuit for demodulating a mobile phone-side APP control signal and outputting a power-off control signal, an isolating drive circuit for isolating the control signal, and a power-on self-holding circuit connected to the isolating drive circuit and a control end of the electronic switch, where the power-on self-holding circuit controls on and off of the electronic switch according to the isolated control signal and provides a short-time ON level to the control end of the electronic switch at the beginning of power-on of the charger so as to keep the electronic switch on.

Abstract: A portable device including a secondary battery, a plurality of driving components driven by charged power of the secondary battery, a charging unit configured to charge the secondary battery by an input of outside power supplied from outside of the portable device, a plurality of transformation units each configured to output the charged power of the secondary battery at a driving voltage of a corresponding one of the plurality of driving components, a detection unit configured to detect the input of the outside power to the charging unit, and a switching controller configured to switch a state of one of the plurality of transformation units from an operation state to a stopped state responsive to detecting the input of the outside power to the charging unit causing only the corresponding one of the plurality of driving components to stop operation during charging of the secondary battery.

Abstract: A charging system for a terminal, a charge method, and a power adapter are provided. The charging system includes a power adapter and a terminal. The power adapter includes a switch circuit, a second rectifying circuit, a first charging interface, and a control circuit. The control circuit modulates a duty cycle of a control signal based on voltage sampling value or current sampling value sampled by the sampling circuit so that voltage in a third pulsating waveform output by the second rectifying circuit satisfies a charging requirement. The terminal includes a battery and a second charging interface connected to the battery. The second charging interface applies the voltage in the third pulsating waveform to the battery when the second charging interface is connected to the first charging interface, so that the pulsating waveform output by the power adapter is directly applied on the battery.

Abstract: A battery charger controller is configured to add a compensation current in the feedback control loop such that the output voltage varies with the output current to compensate charging cable voltage drop. In some embodiments, the output voltage is also proportional to a compensation resistor. Therefore, cable voltage drop compensation can be adjusted using a resistor that is external to the controller IC. The external resistor may be one of the feedback resistors connected at a voltage feedback pin. In another embodiment, the adjustable resistor is the resistor between the feedback resistors and the voltage feedback pin. In still another embodiment, the adjustable resistor is the resistor in parallel with a compensation capacitor. In embodiments of the invention, adjusting the resistance of the external compensation resistor can change the voltage drop compensation and allow the power supply to meet requirements of different charging cable applications.

Abstract: The present disclosure discloses a charging system and a charging method and a power adapter. The system includes a battery, a first rectifier, a switch unit, a transformer, a second rectifier, a first charging interface, a sampling unit and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to a current sampling value and/or a voltage sampling value sampled by the sampling unit, such that a third voltage with a third ripple waveform outputted by the second rectifier meets a charging requirement of the battery.

Abstract: An inductive wireless power system using an array of coils with the ability to dynamically select which coils are energized. The coil array can determine the position of and provide power to one or more portable electronic devices positioned on the charging surface. The coils in the array may be connected with series resonant capacitors so that regardless of the number of coils selected, the resonance point is generally maintained. The coil array can provide spatial freedom, decrease power delivered to parasitic loads, and increase power transfer efficiency to the portable electronic devices.

Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.

Abstract: A battery architecture for wireless charging with optimized wireless power flux boost and load point efficiency in an information handling system (IHS) is described. In some embodiments, an IHS may include an embedded controller (EC) and a memory coupled to the EC, the memory having program instructions stored thereon that, upon execution, cause the EC to: determine a first characteristic of a charging pad configured to provide wireless power to a charger coupled to a battery of the IHS, and select, based upon the first characteristic, a first scalar value applied to a voltage multiplier of the charging pad.

Abstract: A control apparatus of a charging system for electrically driven vehicles sets a first usage condition for a hybrid vehicle when an electrically driven vehicle fusing electricity supply equipment is the hybrid vehicle provided with an internal combustion engine, and set a second usage condition for an electric vehicle different from the first usage condition when an electrically driven vehicle using the electricity supply equipment is the electric vehicle provided with no internal combustion engine.

Abstract: A method and device for wireless power transfer is provided. The device includes a plurality of charging holders positioned adjacent to each other. The method includes generating a first magnetic field using a first transmit coil in a first charging holder. The method further includes generating a second magnetic field using a second transmit coil in a second charging holder positioned adjacent to the first charging holder. The method further includes magnetically coupling the first and second magnetic field to a receive coil of a portable electronic device, wherein magnetically coupling includes transferring power from the first and second magnetic field to the receive coil of the portable electronic device, the first magnetic field and the second magnetic field configured to have a synchronized phase.

Abstract: Provided is a battery pack including a pack case configured to form an exterior; a cell assembly accommodated in the pack case, and including a plurality of battery cells respectively including electrode leads; a pack cover configured to cover the pack case so as to package the cell assembly; and a lead connecting substrate provided between the cell assembly and the pack cover, configured to connect the electrode leads of the plurality of battery cells to one another, and including insert-molded terminals penetrating through the pack cover to be connected to an external power supply.

Abstract: In accordance with aspects of the present invention, a first wireless power enabled device includes a transceiver and control logic. The transceiver includes a plurality of switches coupled in a full-bridge configuration with a resonant tank circuit. The control logic is configured to detect a presence of a second wireless power enabled device, establish a trusted relationship with the second wireless power enabled device, determine an operating mode of the first wireless power enabled device selected from a transmit mode or a receive mode, and drive the plurality of switches to operate the resonant tank circuit in the determined operating mode. The first wireless power enabled device may further include a memory that stores a copy of a first key associated with the first wireless power enabled device and a copy of a second key associated with the second wireless power enabled device.

Abstract: The present disclosure discloses a charging method, a power adapter and a charging device. The power adapter includes: a first rectification unit, configured to rectify a first alternating current and output a voltage with a first pulsating waveform; a switch unit, configured to modulate the voltage according to a control signal; a transformer, configured to output a plurality of voltages with pulsating waveforms according to the modulated voltage; a synthesizing unit, configured to synthesis the plurality of voltages to output a second alternating current; a sampling unit, configured to sample voltage and/or current of the second alternating current to obtain a voltage sampling value and/or a current sampling value; and a control unit, configured to output the control signal to the switch unit, and to adjust a duty ratio of the control signal according to the current sampling value and/or the voltage sampling value.

Abstract: Systems, methods and apparatuses implementing hybrid symmetric and asymmetric control for soft switching in wireless power transfer applications are provided. An apparatus for wirelessly transferring charging power is provided. The apparatus comprises a wireless power coupler. The apparatus comprises driver circuit. The apparatus comprises a control unit configured to instruct a driver circuit to drive the wireless power coupler with a first voltage waveform when transferring wireless charging power less than a first amount. The first voltage waveform includes a positive portion having a first duration and a negative portion having the first.

Abstract: A current sensor device for measuring a current, in particular for measuring a battery current in motor vehicles. The device includes a clamping device for fixing the current sensor device to a maintaining body, an electric resistance element on which the current can be measured by means of a voltage, and an electric mass element by means of which the current sensor device can be electrically coupled to a zero potential. The clamping device, the resistance element and the mass element are integrally formed.

Abstract: Methods, systems, and devices for inductively charging a vehicle. The inductive charging system includes multiple inductive coils for receiving a wireless transferred power. The inductive charging system includes a power electronics circuit that converts the wireless transferred power to a DC current and one or more power storage devices for storing the electrical energy by charging the one or more power storage devices using the DC current. The inductive charging system includes one or more motors configured to move the vehicle using the electrical energy. The inductive charging system includes an electronic control unit that is configured to control at least one of an amount of the electrical energy that is stored in each of the one or more power storage devices or an amount of the electrical energy that is distributed to the one or more motors to move the vehicle.

Abstract: An electric vehicle supply equipment (EVSE) charging system includes an EVSE charging station that is configured to switch a power source between a first power source and a second power source based on a time of use or real-time energy pricing data from a utility. Switching additionally and/or optionally may be based on at least one of charging information and metering information. The first power source may be a renewable source and the second source may be the power grid. In this way, a smart electric vehicle supply equipment (EVSE) charging station may manage and optimize energy supply from a grid and a renewable source when charging an electric vehicle (EV) with the smart the EVSE charging station.