Abstract: A charge/discharge control circuit includes: an output terminal from which a cell-balance control signal is sent to each of the first and the second cell balance circuits; the first and the second voltage detection circuits; a control circuit configured to send the first and the second control signals in accordance with a detection signal received from at least one of the first and the second voltage detection circuits; and an output circuit configured to select one of a voltage of a power supply terminal, a voltage of an input terminal connected to each of a negative electrode of a first battery and a positive electrode of a second battery, and a voltage of a ground terminal in accordance with the first and second control signals, and send the selected voltage to the output terminal.

Abstract: Main management unit manages the plurality of power storage modules via the plurality of sub-management units. Main management unit and the plurality of sub-management units are daisy-chain connected by power line. Main management unit can supply power from power storage unit other than the plurality of power storage modules to the plurality of sub-management units via power line. Main management unit and the plurality of sub-management units respectively include communication units. Each of communication units superimposes a communication signal on power line.

Abstract: The present disclosure provides an on-board charger including a power supply terminal, a switching circuit, a first bridge arm, a second bridge arm, a third bridge arm, a fourth bridge arm, a first bus capacitor, a second bus capacitor, a first switch and a control circuit. The present disclosure can realize a compatibility of a single-phase power supply input or a three-phase power supply input through the cooperation of the switching circuit with the control circuit. Meanwhile, the number of bus capacitors is reduced in the operating state of the single-phase power supply input, accordingly not only the volume and cost of the on-board charger can be reduced, but also the charging power of the on-board charger can be increased, which has an advantage of strong applicability.

Abstract: In a power supply device, switching section switch a connection between batteries to a series connection or a parallel connection. In a case where the connection between the batteries is switched from the series connection to the parallel connection to charge the batteries by an external charger, a controller does not switch the connection to the parallel connection, does not charge one battery having a larger voltage out of the batteries, and separately charges the other battery when a potential difference between a voltage of the battery and a voltage of the battery is a predetermined threshold value or higher; and the controller switches the connection to the parallel connection and charges the batteries when the potential difference is lower than the threshold value.

Abstract: A charging system has: a number of connections for connecting at least one electric energy store to be charged; a number n of at least three inverter bridges, each of which has a center tap; a number n of electric filters, wherein the input of each filter of the number n of filters is electrically connected to a respective corresponding center tap of an inverter bridge of the number of inverter bridges; a controllable assigning unit which is inserted between a respective output of a filter of the number n of filters and the number of connections and which is designed to electrically assign the output of each filter of the number n of filters to a respective corresponding connection of the number of connections depending on at least one actuation signal; and a control unit which is designed to generate the at least one actuation signal depending on a desired charge mode of the charging system.

Abstract: System and method for charging or discharging one or more batteries. For example, a battery management system for charging or discharging one or more batteries includes: a first transistor including a first transistor terminal, a second transistor terminal, and a third transistor terminal, the second transistor terminal being configured to receive a first drive signal; a second transistor including a fourth transistor terminal, a fifth transistor terminal, and a sixth transistor terminal, the fifth transistor terminal being configured to receive a second drive signal; a burst mode detector configured to receive the first drive signal and generate a burst-mode detection signal based at least in part on the first drive signal; and a drive signal generator configured to receive the burst-mode detection signal and generate the first drive signal and the second drive signal based at least in part on the burst-mode detection signal.

Abstract: An apparatus is provided for charging a first storage battery and a second storage battery electrically connected together in series includes a first Kelvin connection, a second Kelvin connection and a third Kelvin connection coupled to the storage batteries. At least two of the Kelvin connections are configured to charge at least one of the first and second batteries. A charging source configured to selectively couple a charge signal to a storage battery through the Kelvin connections. A switching device selectively couples the charging source and measurement circuitry to at least two of the first, second and third Kelvin connections. A microprocessor selectively controls the switching device, charges the batteries, and measures a parameter of the batteries as a function of the charging signal applied to the batteries.

Abstract: A system of charging a battery pack with single charger includes a battery module, a main charging module, and a balance charging module. The battery module has a battery pack, and the battery pack has a plurality of cells in series. The main charging module has a main charger. The balance charging module has a balance charger. All the cells of the battery pack of the battery module are charged at the same time by the main charger of the main charging module. After the charging task of the main charging module is completed, the cells of the battery pack of the battery module are charged in sequence by the balance charger of the balance charging module.

Abstract: A CPU, when determining that the predicted minimum value of a limit value of charging power is not smaller than the minimum power of a charger, controls charging such that charging is performed in a normal mode, the normal mode being a mode in which a lower limit of a command value of supply power is the minimum power, when determining that the predicted minimum value is smaller than the minimum power, controls charging such that charging is performed in an estimation mode, that is a mode in which the lower limit of the command value is an estimated value of the minimum power of the charger, the estimated value being smaller than the minimum power, and controls charging such that charging is performed in the estimation mode by using, as the command value, power between a current limit value of the charging power and the estimated value.

Abstract: A dual-slope optical sensor is provided. Two terminals of a first charging switch are respectively connected to an optoelectronic component and a first terminal of a capacitor. Two terminals of a second charging switch are respectively connected to a second terminal of the capacitor and grounded. First terminals of third charging and discharging switches are respectively connected to the first and second terminals of the capacitor. First terminals of fourth charging and discharging switches are respectively coupled to first and second reference voltages. Two terminals of a first discharging switch are respectively connected to the optoelectronic component and the second terminal of the capacitor. A first input terminal of a comparator is connected to second terminals of the third charging switch and the fourth discharging switch. A second input terminal of the comparator is connected to second terminals of the fourth charging switch and the third discharging switch.

Abstract: Electrical power supply system having a DC distribution bus; a rechargeable battery module which delivers DC power to the DC distribution bus in a discharge mode, and absorbs DC power from the DC distribution bus in a recharge mode; a DC/DC converter comprising an inductor and plural switches, the DC/DC converter being connected between the DC distribution bus and the rechargeable battery module; and a heat transfer arrangement configured to transfer heat between the DC/DC converter and the rechargeable battery module. The module has an idling mode of operation in which it neither delivers nor absorbs DC power to/from DC distribution bus, wherein the converter is repeatedly switchable between (i) a ramping-up configuration in which a current is withdrawn from a source, and (ii) a freewheeling configuration in which the current from the ramping-up configuration is isolated from the source to flow in a continuous loop within the converter.