A control circuit module and a control method thereof are provided. The method includes enabling a first discharge circuit by a controller, instructing a first battery cell of a battery module to operate in a ship mode, and disabling the first discharge circuit.

Provided is a battery control system-in-package including a package substrate, a wireless charger integrated circuit (IC) module mounted on the package substrate, a wired charger IC module mounted on the package substrate, a battery protection IC module mounted on the package substrate, and a single mold provided on the package substrate to encapsulate the wireless charger IC module, the wired charger IC module, and the battery protection IC module.

The present disclosure relates to a power management circuit of an electronic device. The circuit may include a battery configured to provide a variable current to drive a load device, and a processing circuit electrically connected to the battery via a wire. The processing circuit may be configured to detect a voltage applied on the processing circuit, and power off the load device in response to a detection that the voltage applied on the processing circuit is smaller than a threshold value. The voltage applied on the processing circuit may depend on a cell voltage of the battery, and a voltage drop caused by the variable current and a resistance deriving from the battery and the wire. A change of the voltage applied on the processing circuit may lag behind a change of the variable current.

The present disclosure relates to a battery current sharing control method and a battery current sharing control system. The method includes: acquiring an actually measured cell array current corresponding to each of cell arrays; determining a target current of all cell arrays based on actually measured cell array currents corresponding to all the cell arrays; and adjusting an output current of each of cell array branches to the target current via adjusting current sharing DCDC converters based on the actually measured cell array currents corresponding to all the cell arrays and the target current. In this way, a capacity loss of the cell arrays caused by connecting in parallel can be reduced, and battery capacity utilization of the cell arrays can be improved.

A secondary battery protection circuit for protecting a secondary battery, including: a low-voltage detecting circuit configured to detect a voltage across the secondary battery that is lower than a second voltage for low voltage detection, the second voltage being set to be lower than a first voltage for overdischarge detection; and a switching circuit configured to cause a gate of a charge control NMOS transistor to be fixed at a potential at a high side power supply terminal, upon detecting, by the low-voltage detecting circuit, that the voltage across the secondary battery is lower than the second voltage for low voltage detection.

Provided is a method for switching an energy storage system (ESS) to an uninterruptible power supply (UPS). The method includes: a normal power supply determination step of determining whether normal power is supplied to the ESS; an operation mode setting step of setting an operation mode of the ESS according to whether the normal power is supplied or not; and an ESS control step of controlling the ESS according to a reference corresponding to the operation mode.

A portable device includes: a modem configured to perform power line communication with a charger external to the portable device; and a charging circuit configured to, from first power provided by the charger, charge a battery and supply power to an electrical load, wherein the charging circuit is further configured to cut off the supply of the first power to the electrical load and supply second power from the battery to the electrical load.

An electrical device, such as a power tool, includes a first battery pack receptacle configured to receive a first battery pack and a second battery pack receptacle configured to receive a second battery pack. The second battery pack is electrically connected in a series-type configuration with the first battery pack. The electrical device also includes circuitry with an electronic processor. The circuitry is configured to alter a first signal output from the electronic processor to at least one selected from a group consisting of the first battery pack and the second battery pack, and to alter a second signal received by the electronic processor from at least one selected from the group consisting of the first battery pack and the second battery pack.

It is provided a protection circuit for protecting a battery comprising a plurality of lithium primary cells. The protection circuit comprises: a switch configured to control when the battery supplies power to a load; and a control circuit being configured to: detect, at a first point in time, when a voltage across at least part of the battery falls below a threshold voltage; and open the switch when the voltage across at least part of the battery is remains below the threshold voltage during a preconfigured duration from the first point in time, wherein the opening of the switch is irreversible.

Various embodiments of the present technology may provide methods and apparatus for a battery system. The apparatus may provide a fuel gauge circuit that operates in conjunction with a protection circuit to control discharging and/or current leakage at exposed terminals of the apparatus.