Abstract: The present disclosure relates to a device for monitoring and balancing the cell voltages of at least two energy storage cells, which are electrically connected in series, of a multi-cell energy storage stack having at least one energy storage element, a voltage measuring unit, a first combinatorial circuit that is connected to each energy storage cell and the voltage measuring unit, a second combinatorial circuit that is connected to the energy storage element, the voltage measuring unit, and the first combinatorial circuit, and controls a control unit, which is connected to the voltage measuring unit and the first and second combinatorial circuit.

Abstract: Provided is a charging stand which, with a simple structure, prevents a force applied to a power cord from being transmitted directly to a connecting portion between the charging stand and the power cord. A charging stand 100 comprises a housing 110 having a seat portion 114 for placing an electronic apparatus 300 thereon and a charging mechanism for charging the electronic apparatus 300 when the electronic apparatus 300 is placed on the seat portion 114. A cord winding structure 140 for winding thereon a power cord 220 adapted to be connected to the charging stand 100 is provided at a bottom surface of the housing 100.

Abstract: The disclosure provides a battery which can include a power supply and power supply circuit, the power supply circuit connected to the power supply. The power supply can discharge through the power supply circuit. An electronic switch can control the power-on or off of the power supply, thereby avoiding the generation of sparks during the power on process and allowing for the normal use of the battery and the safety of the aircraft. The disclosure also provides an aircraft having the battery.

Abstract: A system for guiding a user through a procedure corresponding to installing a battery in a UPS that is associated with the system. The system includes at least one programmed processor embedded within the UPS. The programmed processor is configured to retrieve at least one stored procedure corresponding to installing the battery in the UPS including at least one step to be performed by the user. The system further includes at least one device embedded within the UPS to provide information regarding a status indicator of the battery of the UPS. The programmed processor and the device are operatively coupled such that the programmed processor receives at least a portion of the information of the battery from the device. The system further includes a user interface forming part of the UPS. The user interface is coupled to the programmed processor for displaying the step of the stored procedure.

Abstract: A protection case for protecting a wearable electronic device includes: a protection case body that comprises first and second cases; and one or more coupling parts that are provided in the protection case body. The coupling parts couple the first and second cases to each other and couple the wearable electronic device while enclosing the wearable electronic device when the coupling parts are coupled to each other, and separate the first and second cases from each other and separate the wearable electronic device when the coupling parts are separated from each other.

Abstract: Systems and methods are disclosed for multi-coil wireless power transfer. The system includes a first transmitting coil disposed within a lower portion of a wireless charger, and a second transmitting coil disposed within a side portion of the wireless charger. The system further includes a communications module configured to receive a signal from an information handling system. The information handling system includes a receiving coil. The system additionally includes a transmit module configured to determine an orientation of the receiving coil, and provide a first current to the first transmitting coil and a second current to the second transmitting coil based on the orientation of the receiving coil.

Abstract: It is provided an apparatus for transferring energy to an accumulator, the apparatus having a core and a wire wound around the core thereby forming a coil, wherein the coil is adapted to receive energy from a magnetic field, wherein the wire is connectable to the accumulator to transfer the received energy to the accumulator. A charging station for generating a magnetic field for transferring energy to an accumulator is provided, and a system for charging an electric accumulator is provided, wherein the system includes an apparatus as described above; and a charging station having a further wire wound such as to form a further coil.

Abstract: A method and apparatus charge devices using a multiple port power supply. The apparatus can include a power supply. The apparatus can include a first device charging port coupled to the power supply. The first device charging port can receive power from the power supply and output power to a first device. The apparatus can include a second device charging port coupled to the power supply. The second device charging port can receive power from the power supply and output power to a second device. The apparatus can include a device charging port monitor coupled to the first device charging port and coupled to the second device charging port. The device charging port monitor can detect a number of device charging ports in use. The apparatus can include a cable compensator coupled to the device charging port monitor. The cable compensator can select a first cable compensation if one device charging port is in use and can select a second cable compensation if two device charging ports are in use.

Abstract: A band system for a wearable device, or alternately, a flexible smart strap, worn as an article of apparel, for providing reserve power and enhanced functionality to a portable digital device. The band system or smart strap provides both a stylish fashion accessory and a functional rechargeable secondary power source to address an increasing demand for additional battery life due to greater digital demands and functionality of digital smart devices and optionally includes an interchangeable detachable strap with integrated rechargeable batteries, a charging circuit that integrates with a digital device, an interface for recharging the smart strap batteries or a connected portable digital device battery in combination with the smart strap batteries. An additional interface is also described, capable of providing further functionality for various types of data transfer.

Abstract: A controller (130) reads out a voltage value correlated with the ambient temperature of a battery (200) measured by a temperature measurer (110) from a storage device (120), so that a charger (140) charges the battery (200) at the voltage value read out by the controller (130).

Abstract: Method for charging an electrochemical accumulator, comprising a step (E10) of determining the initial state of the electrochemical accumulator, characterized in that it comprises a step (E11) of determining the regime of charge of the electrochemical accumulator by optimizing the product of a charging time saving and an energy saving as a function of the initial state of the electrochemical accumulator.

Abstract: An assembled-battery voltage detection device for detecting a voltage at an assembled-battery including a plurality of single batteries connected in series includes: single-battery voltage detection circuits detecting voltages at the respective single batteries; single-battery voltage detection terminals connected to ends of the single batteries; connectors connecting the single-battery voltage detection terminals and the single batteries; voltage detection terminals detecting a voltage at one of the single batteries located at one end in the assembled battery; an assembled-battery voltage detection circuit detecting a potential difference between the voltage detection terminals; a single-battery voltage sum calculator calculating a sum of the voltages detected by the single-battery voltage detection circuits; an end-battery voltage abnormality determination unit determining whether the voltage at the single battery located at the end is 0 V; and an abnormality output unit outputting an abnormality depending

Abstract: Described herein are improved configurations for a wireless power transfer. Described are methods and designs for implantable electronics and devices. Wireless energy transfer is utilized to eliminate cords and power cables puncturing the skin to power an implantable device. Repeater resonators are employed to improve the power transfer characteristics between the source and the device resonators.

Abstract: Provided are a cell balance device with high cell balance performance and high cell balance speed and requiring no high voltage process, and a battery system including the cell balance devices. The cell balance device includes: three terminals to be connected to secondary batteries; one terminal to be connected to a voltage hold device; three switches provided between the three terminals and the one terminal; and a receiving terminal and a transmitting terminal for a synchronization signal. Alternatively, the cell balance device includes: four terminals to be connected to secondary batteries; two terminals to be connected to a voltage hold device; six switches provided between the four terminals and the two terminals; and a receiving terminal and a transmitting terminal for a synchronization signal. The battery system includes: a plurality of secondary batteries; a plurality of voltage hold devices; a plurality of cell balance devices; and a clock generation circuit.

Abstract: An improved electrolyte battery is provided that includes a tank assembly adapted to hold an amount of an anolyte and a catholyte, a number of cell stacks operably connected to the tank assembly, each stack formed of a number of flow frames disposed between end caps and a number of power converters operatively connected to the cell stacks. The cell stacks are formed with a number of flow frames each including individual inlets and outlets for anolyte and catholyte fluids and a separator disposed between flow frames defining anodic and cathodic half cells between each pair of flow frames. The power converter is configured to connect the battery with either forward or reverse polarity to a DC power source, such as a DC bus. The anodic and cathodic half cells switch as a function of the polarity by which the battery is connected to the Dc power source.

Abstract: A wired/wireless charging apparatus capable of performing wired charging and wireless charging and a circuit are provided. The wired/wireless charging apparatus includes a body including a wired charging circuit for wired charging, a wireless charging circuit for wireless charging, and a battery mounting space a cover coupled with the body and including a transmission coil generating a magnetic field for the wireless charging, wherein the body and the cover including a contact unit for electrically connecting the transmission coil to the wireless charging circuit.

Abstract: A battery pack of one aspect of an embodiment of the present disclosure comprises a battery, a control unit, a pair of external terminals, a first current cut-off unit, and a second current cut-off unit. The control unit determines whether the first current cut-off unit and the second current cut-off unit are normal or abnormal when neither charge nor discharge of the battery is performed. When the first current cut-off unit and the second current cut-off unit are both normal, the control unit turns the first current cut-off unit and the second current cut-off unit to an energized state. When at least one of the first current cut-off unit and the second current cut-off unit is abnormal, the control unit turns the first current cut-off unit or the second current cut-off unit to a cut-off state.

Abstract: A recharging system for a battery. The internal resistance of the battery and its leads produce an error voltage when a charging current flows through the battery and the leads. The error voltage combines with the inherent battery voltage to produce an inflated voltage. A filtering circuit receives the inflated voltage. The filter circuit quantifies the error voltage. A subtractor circuit receives the inflated voltage and the error voltage. The subtractor circuit subtracts the error voltage from the inflated voltage to quantify the battery voltage. A voltage comparator is utilized to compare the battery voltage to a voltage set point. A switch is provided that is controlled by the voltage comparator. The switch receives the charging current and directs the charging current to the only while the voltage set point is greater than the battery voltage. Thus, the battery is recharged.

Abstract: The present invention discloses a power management circuit, and a control circuit and a control method thereof. The power management circuit converts an input voltage at an input terminal to an output voltage at an output terminal, and charges a battery from the output terminal. The present invention detects a power supplying capability of the input terminal to generate an adjustment signal, and adjusts the output voltage according to the adjustment signal.

Abstract: An embodiment of a charger may include an input, at least one switch having a first node coupled to a reference voltage, a current sensor coupled between the input and a second node of the at least one switch, an output coupled to a third node of the at least one switch, and a charge controller coupled to the input to determine an input voltage, to the current sensor to determine an input current and to control inputs of the at least one switch. The at least one switch may be responsive to control signals supplied by the charge controller to the control inputs thereof to control voltage and current at the output of the charger. The charge controller may be responsive to the input voltage and the input current to produce the control signals in a manner that maximizes electrical power drawn at the input.