Abstract: Provided is an energy storage device management device which includes a controller configured to decide a charge voltage to be applied to a plurality of energy storage devices connected in series, wherein the controller is configured to perform deciding the charge voltage based on a difference in charge amount or a voltage difference between the energy storage devices.

Abstract: The present disclosure discloses a smart battery, an electric energy allocation bus system, a battery charging and discharging method and an electric energy allocation method. The smart battery internally comprises a battery body portion and a control unit. The smart battery can collect various data of the battery, can be communicated with other smart batteries in a battery pack of a same group and a battery pack control system, and can realize electric quantity transfer among smart batteries of the same group through the electric quantity allocation bus, and realize electric quantity transfer among some batteries of a battery pack accessed to the electric energy allocation bus. Besides, controllable processes of charging and discharging, that is, active balanced charging and discharging, can be realized.

Abstract: A battery monitoring device includes a battery information input terminal, a battery state monitoring unit, an output terminal, a circuit board, and a housing member. The battery information input terminal is electrically connected to a battery state detecting member. The battery state monitoring unit receives a battery state detection signal via the battery information input terminal. The output terminal outputs monitoring information on the battery state corresponding to the battery state detection signal to an external arithmetic processor. The circuit board is provided with the battery information input terminal, the battery state monitoring unit, and the output terminal. The housing member is integrally formed with the battery information input terminal, the battery state monitoring unit, the output terminal, and the circuit board so as to accommodate at least the whole battery state monitoring unit and the whole circuit board and expose terminal connecting portions to the outside.

Abstract: A battery pack including: a rechargeable battery, a protection circuit configured to disable the rechargeable battery when an output voltage value of the rechargeable battery becomes equal to or lower than a first voltage value, and a control circuit configured to stop power supply for an electronic device from the rechargeable battery when the output voltage value of the rechargeable battery becomes equal to or lower than a second voltage value that is higher than the first voltage value, the second voltage value being updated based on the output voltage value of the rechargeable battery when power supply for the electronic device from the rechargeable battery becomes unnecessary.

Abstract: Disclosed are alignment methods and apparatuses for power transmission/reception coils in an electric vehicle wireless power transfer system. An alignment method may comprise moving a primary coil such that a reference center point of the primary coil sequentially passes through a plurality of measurement points located on the primary coil or located outside the primary coil; measuring physical quantities induced in the primary coil by a power or a magnetic field of a secondary coil magnetically coupled with the primary coil at the reference center point and the plurality of measurement points; and calculating a relative position of the primary coil with respect to the secondary coil based on the measured physical quantities.

Abstract: A vehicle power supply apparatus includes a motor generator, a first electricity storage device, a second electricity storage device, a switch, a switch controller, and an electricity storage device determiner. The switch controller is configured to cause the first cutoff state of the switch, switchable between a first electrically conductive state that allows the motor generator and the first electricity storage device to be coupled to each other and a first cutoff state that allows the motor generator and the first electricity storage device to be isolated from each other, to be maintained in a situation where the first electricity storage device discharges beyond a threshold, on a condition that the switch is switched to the first cutoff state in accordance with controlling of the motor generator into a powering state and the second electricity storage device is determined as being in an abnormal state.

Abstract: A battery arrangement for a gas turbine engine, the battery arrangement comprising: a wall of the gas turbine engine; a thermal battery coupled to the wall and arranged to receive thermal energy from gas of the gas turbine engine; and charging circuitry configured to supply electrical energy to the thermal battery to recharge the thermal battery.

Abstract: A battery protection circuit includes a charging switch, a resistor, a charging controller, a switching circuit, a fuse circuit, and a fuse driving circuit. The charging switch is connected to a first electrode of a battery cell. The resistor includes a first end connected to a second electrode of the battery cell. The charging controller supplies a charging control current. The switching circuit connects a second end of the resistor with a control terminal of the charging switch or blocks connection between the second end of the resistor and control terminal of the charging switch depending on the charging control current. The fuse circuit is connected to a charging path of the battery cell and blocks the charging path depending on a voltage applied to a control terminal of the fuse circuit. The fuse driving circuit switches the voltage applied to the control terminal of the fuse circuit depending on a voltage between the ends of the resistor.

Abstract: Relatively inexpensive and practical cell deterioration diagnostic method and cell deterioration diagnostic device are provided. A cell deterioration diagnostic method diagnoses cell deterioration of a secondary cell having a transient characteristic. The method includes: a charging step of charging the secondary cell; a calculation step of calculating an integrated value of a potential difference obtained by subtracting a cell internal voltage V0 of the secondary cell from a cell inter-terminal voltage of the secondary cell by integrating the potential difference as the cell inter-terminal voltage converges to the cell internal voltage V0 after completion of charging; and a diagnosis step of diagnosing the cell deterioration of the secondary cell based on the integrated value.

Abstract: A circuit includes a first power converter circuit and a second power converter circuit. The input of the second power converter circuit is coupled to the output of the first power converter circuit and is configured to receive an input signal. A rechargeable battery is coupled to the output of the first power converter circuit. A charge control circuit is configured to control charging the rechargeable battery by controlling the second power converter circuit.

Abstract: An integrated multiple voltage battery system includes a first pair of output terminals, a second pair of output terminals, a plurality of first battery cells connected in series with each other and operatively connected to the first pair of output terminals, at least one second battery cell operatively connected to the second pair of outlet terminals, and a plurality of switches, the plurality of switches arranged such that each first battery cell in the plurality of first battery cells can be selectively placed in parallel with the at least one second battery cell while electrically isolating the other of the plurality of first battery cells from the at least one second battery cell, wherein each of the plurality of first battery cells has a nominal open cell voltage which is about the same as a nominal open cell voltage of the at least one second battery cell.

Abstract: Disclosed are an apparatus and a method for sensing opening of a current interrupt device (CID) of a battery unit. An apparatus for sensing opening of a current interrupt device of a battery unit according to the present invention is configured to include: a setting unit setting a predetermined voltage section when discharge of one or more battery units starts; a measuring unit measuring a voltage section pass time which is the time when the one or more battery units pass through the predetermined voltage section for each battery unit; and a detecting unit detecting a battery unit in which the current interrupt device (CID) is opened among the one or more battery units and detecting the number of battery cells in which the CID is opened among one or more battery cells included in the battery unit in which the CID is opened based on the voltage section pass time for each battery unit.

Abstract: At least one of a system or a method for wirelessly charging a device is provided. A wireless receiver is configured to communicate with a device to be charged to determine a desired charge scenario indicative of power to be supplied to the device. Based upon the desired charge scenario, a resonant frequency of the wireless receiver is set. The resonant frequency, in combination with energy transferred from a wireless transmitter, is configured to induce a current in the wireless receiver. Power is supplied to the device based upon the current induced in the wireless receiver.

Abstract: The power storage device includes a battery group in which n series circuits C1 (wherein n represents an integer of 2 or greater) are connected in parallel and a battery controller controlling a switching device based on allowable charge/discharge power of the capacitor. The series circuit C1 includes a capacitor and the switching device which are connected in parallel. The battery controller controls the switching device to maximize the allowable charge/discharge power of the battery group.

Abstract: A system and method for detecting voltage of a battery pack. The system comprises a level transfer circuit array, a multipath data selector, a decoder, a trimming calibration circuit, and an output buffer. The decoder is configured to parse a battery pack cell gating signal; the level transfer circuit array is configured to convert a gated battery pack cell voltage into a common grounded voltage; the multipath data selector is configured to transmit the common grounded voltage, which is converted by the level transfer circuit array, of a battery pack cell to the trimming calibration circuit; the trimming calibration circuit is configured to correct the received common grounded voltage of the battery pack cell; and the output buffer is configured to buffer the common grounded voltage, which is trimmed and calibrated by the trimming calibration circuit, of the battery pack cell.

Abstract: A battery balance circuit configured for a battery apparatus having two batteries coupled in series, can include: first and second capacitors respectively coupled to two terminals of the two batteries; first and second switching circuits respectively coupled to the two terminals of the two batteries, where the first and second switching circuits are configured to control charging or discharging of each of the two batteries; a third capacitor coupled between the first and second switching circuits, where the third capacitor is configured to store or release energy in order to balance battery levels between the two batteries; and parasitic inductors, where the third capacitor and the parasitic inductors are configured to resonate, and the first and second switching circuits are configured to operate at a resonance frequency.

Abstract: A first DC/DC converter is of a constant voltage control type and is controlled so as to keep the voltage of an electric generation bus at a predetermined target value. A second DC/DC converter is of a constant current control type and is controlled so as to keep input current or output current at predetermined target current. A control circuit determines an optimum target value of electric generation bus voltage, based on different algorithms, in accordance with all or some of modes A to C which are classified by the charging/discharging condition of a second electric storage device, and controls the first DC/DC converter so that the electric generation bus voltage becomes the determined target value.

Abstract: A method of charging a secondary battery and a charging device that can improve stability and extend the life span of the battery. When the secondary battery includes a plurality of cells, the charging method is changed when a voltage imbalance from 100 mV to 300 mV occurs among the cells. In that range, the charging method changes from a constant current-constant voltage charging method to a pulse-charging method. When the voltage imbalance is 300 mV or more, the electricity path is blocked, shutting down the battery. When the voltage imbalance is 100 mV or less, the constant current-constant voltage charging method is maintained. The method and device also stop charging when the battery reaches full charge.

Abstract: A receiving antenna of a wireless power receiving device wirelessly charging electric power according to an embodiment of the present invention includes a substrate, a first soft magnetic layer stacked on the substrate, and including a soft magnetic material, and a receiving coil configured to receive electromagnetic energy emitted from a wireless power transmission device, and including a first coil layer wound in parallel with the soft magnetic layer, and a second coil layer electrically connected to the first coil layer and wound in parallel with the first coil layer, and a current direction of the first coil layer is opposite to a current direction of the second coil layer.

Abstract: A fast charging method, apparatus, and device for a USB electronic device including obtaining, according to a preset charging current threshold, a corresponding charging data set of the electronic device under the present charging current threshold, determining, according to the charging data set, a maximum charging current value corresponding to the electronic device; setting the determined maximum charging current value as a charging current threshold of the electronic device, and controlling charging of the electronic device according to the charging current threshold.