Abstract: A power system using multiple battery packs to generate a defined power output may include a plurality of modular battery packs, each of which may include: a first housing, a plurality of battery cells, a first interface that communicates information, and a second interface that transmits power. The power system may also include a second housing configured to removably receive the plurality of modular battery packs and a waveform generation circuit, and a processing system that is configured to receive the information from the battery packs indicating electrical waveform characteristics for power received from each, to cause the waveform generation circuit to aggregate the power received from the modular battery packs, and to cause the waveform generation circuit to generate an output electrical signal based on stored parameters.

Abstract: An internet device and an automatic switching method, apparatus and circuit for a charging interface of an internet device are disclosed. The device includes a device charging interface (20), a dock charging interface (30), a charging loop (40) and an automatic switching apparatus (10) for a charging interface. The method includes: when external power supply is connected into the device (S001), judging whether a dock charging interface a the device is in place (S002), if so, isolating a device charging interface of the device and at the same time, connecting a charging loop of the device through a dock charging interface of the device (S003); otherwise, isolating the dock charging loop of the device and at the same time, connecting the charging loop of the device through the device charging interface of the device (S004). The device is convenient to implement and has the advantages of reliable performance and low cost.

Abstract: A battery unit comprising an electric energy reservoir having positive and negative voltage supply terminals, three or more electric contact pads on an outer surface of the battery unit, and a dynamically configurable connection unit for electrically connecting each of said positive and negative voltage supply terminals to any one or more of said electric contact pads, wherein electric energy can be drawn from the electric energy reservoir via selectively different combinations of electric contact pads.

Abstract: The present disclosure relates to an accessory device usable with a portable electronic device and an aerosol delivery device. The accessory device may include a case configured to receive the portable electronic device and the aerosol delivery device therein. Further, the accessory device may include an interface that provides an electrical connection and/or a data connection between the aerosol delivery device and the portable electronic device. Thereby, the portable electronic device may charge the aerosol delivery device or vice versa and/or data may be exchanged therebetween. A related method and a computer program product are also provided.

Abstract: Inductive wireless charging for mobile devices are described that utilize resonant inductive coupling between a wireless inductive charging device and the battery of the mobile device. The power transfer from the charging device to the mobile device is adjustable. Signals are sent between the devices to determine power transfer efficiency and to adjust settings to approach or achieve a desired target efficiency.

Abstract: Provided are a wireless charging system and methodology including a charging station, an application, and a server configured and operating to facilitate wireless vehicle charging. The charging station includes a charging unit for transferring power, a control unit, and a communication unit. The application is accessible through a mobile device and capable of communicating with the charging station. The server is capable of communicating with the charging station and the mobile device.

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: Disclosed is an energy harvesting apparatus. The energy harvesting apparatus includes a rectifier for rectifying an alternating current (AC) voltage supplied from an energy source into a direct current (DC) voltage, a charging unit for storing an output voltage of the rectifier, and a maximum power point tracker selectively connected between the rectifier and the charging unit, for differentiating the output voltage of the rectifier in a first connection state, and for controlling the output voltage of the rectifier based on a differentiation result.

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.

Abstract: Systems and methods for a scalable battery controller are disclosed. In one example, a circuit board coupled to a battery cell stack is designed to be configurable to monitor and balance battery cells of battery cell stacks that may vary depending on battery pack requirements. Further, the battery pack control module may configure software instructions in response to a voltage at a battery cell stack.

Abstract: According to one embodiment, a system includes an electronic device and an extension device to which the electronic device is detachable from and attachable. The electronic device includes a first battery, and a voltage step-down circuit to charge the first battery with first power supplied from the extension device after stepping down or without stepping down voltage of the first power. The extension device includes a second battery, and a voltage step-up circuit to supply the electronic device with second power supplied from the second battery after stepping up or without stepping up voltage of the second power.

Abstract: A battery management system and a method of driving the same are provided. When the output signal of a charger is higher than a first voltage, a battery cell is charged with a first current by a first charge circuit. When the output signal of the charger is higher than a second voltage, a battery cell is charged with a second current by a second charge circuit. The second voltage is higher than the first voltage and second current is higher than the first current.

Abstract: A universal serial bus (USB) adaptor supplies a large charging current to charge a device. The USB adaptor includes a voltage conversion circuit, a USB interface, a current detection circuit, a first switch, a second switch, and a third switch. The USB interface includes a power pin, a first data pin, a second data pin, and a ground pin. The current detection circuit detects a charging current of the device, and converts the charging current into a voltage to compare the charging current with a reference voltage to output a comparison signal. The first switch, the second switch, and the third switch control connection relationships between the power pin and the first data pin, the first data pin and the second data pin, and the second data pin and the ground pin according to the comparison signal, respectively. A USB cable is also provided.

Abstract: There are provided electric cells, a battery pack containing three or more electric cells, a battery control system and a battery control method. An electric cell for a battery pack will be interconnected with another cell to be used as a battery pack. For example, an electric cell comprises an electrochemical cell, a communication unit communicating with other electric cells, a measurement unit acquiring cell-state of the electrochemical cell, and a discharge unit discharging the electrochemical cell. The communication unit transmits a cell-state of the electrochemical cell and receives external information. The discharging unit discharges the electrochemical cell based upon both the cell-state of the electrochemical cell and the received external information.

Abstract: Power distribution circuitry to improve wireless power distribution and facilitate wireless power transfer (WPT) operations in a wireless communication device under a variety of operating conditions. In various exemplary embodiments of the disclosure, the power distribution circuitry operates to provide a wireless power (WP) supply voltage to wireless communication circuitry of the device in order enable a WPT connection procedure under certain low power conditions. Such conditions might include a power off mode, a sleep mode, and dead/low battery operating conditions wherein the available battery supply voltage is less than a threshold voltage required to enable device components. The power distribution circuitry may switch the supply voltage of the wireless communication circuitry to another available supply voltage source after the WPT connection procedure is completed and wireless power is being received by the wireless communication device.

Abstract: A method for monitoring a state of a rechargeable battery based on a state value which characterizes the respective state of the rechargeable battery, characterized in that, during at least one time interval, an electrical energy which is output by the rechargeable battery and an electrical energy which is received by the rechargeable battery are detected, and in that an instantaneous state of charge or an instantaneous no-load voltage of the rechargeable battery is detected, wherein the detected electrical energy which is output by the rechargeable battery, the detected electrical energy which is received by the rechargeable battery and the respectively detected instantaneous state of charge or the respectively detected instantaneous no-load voltage of the rechargeable battery are evaluated in order to generate the state value.

Abstract: In an analog-to-frequency converting circuit, a set of switches receive a first sense signal indicative of a current and provides a second sense signal that alternates between an original version of the first sense signal and a reversed version of the first sense signal, under control of a switching signal. An integral comparing circuit integrates the second sense signal to generate an integral value and generates a train of trigger signals. Each trigger signal is generated when the integral value reaches a preset reference. A compensation circuit compensates for the integral value with a predetermined value in response to each trigger signal. A control circuit generates the switching signal such that a time interval during which the second sense signal is the original version and a time interval during which the second sense signal is the reversed version are substantially the same.

Abstract: The invention relates to a method for charging a battery comprising rechargeable cells. According to the invention, to perform the ith charge of the battery, where i?2, connection of the charging terminals to the charger is detected triggering connection of the cells to their bypass circuit during a pre-emptive bypass time (TPji). Next, for each cell, during a second phase (Cji), the bypass circuit is disconnected from the cell until the voltage of the cell reaches a preset voltage, the pre-emptive bypass time (TPji) for the ith charge having been calculated as a function of the total connection time, during at least one preceding charge, of the bypass circuit associated with this cell, until all the cells have reached the preset voltage. At least one length of time allowing the first time (TPji) for the ith charge and/or said total connection time to be determined was memorized in a memory of the battery during this at least one preceding charge.

Abstract: A battery cell monitoring system includes multiple battery monitoring circuits, each connected to a corresponding battery cell, and a microcomputer for controlling the monitoring circuits. The battery monitoring circuits include a data output circuit that outputs a data signal corresponding to the monitoring results for the battery cell monitored thereby and a multiplexer that outputs either the monitoring results received from the data output circuit or monitoring results received from another battery monitoring circuit. The battery cell monitoring circuit includes a flip-flop circuit receiving a clock signal and the signal output from the multiplexer which is latched in synchronization with the clock signal.

Abstract: The present document relates to a start-up circuit comprising a power switch wherein a circuit charges a supply voltage capacitor. The capacitor provides a supply voltage to a power switch; the power switch forms a switched power converter with a power converter network. The circuit comprises a source and gate interface for coupling the circuit to the power switch; a capacitor interface couples the circuit to the supply voltage capacitor; a start-up path couples the gate interface to the capacitor interface; wherein the startup path provides a voltage at the gate interface which is at or above a threshold voltage of the power switch; and a charging path couples the source interface to the capacitor interface; wherein the charging path provides a charging current to the capacitor interface, when the power switch is in on-state.