A charger integrated circuit for charging a battery device including a first battery and a second battery connected to each other in series. The charger integrated circuit includes a first charger to be connected to a connection node between the first and second batteries, a second charger to be connected between the input voltage terminal and a high voltage terminal of the battery device, and a balancing circuit to balance voltages of the first and second batteries. The first charger is to provide a first charge current to the connection node in a first charge mode. The second charger is to directly charge the battery device by providing a second charge current to the high voltage terminal in a second charge mode.

A hybrid power generation system according to an embodiment of the present invention includes: a blade provided on a vertical shaft to reduce noise and vibration during rotation; a wind collecting duct increasing speed of wind and rotating the blade at a high speed to improve efficiency of wind energy; a wind collecting room provided in the blade to increase a rotational force and efficiency of wind energy; a photovoltaic module concentration device driving a wind inducing rotation motor provided in the wind collecting duct to rotate a wind inducing rotation blade with solar energy to increase wind and forcibly discharge the wind into a blade wind collecting room of a turbine module to increase an amount of power generation even when wind does not blow, and technologies based on Internet of Things (IoT) and Artificial Intelligence (AI), such as a camera, a fire detection sensor, a drone, and the like that can reduce a risk of breakdown of the system and operate efficiently.

The inspection device includes a charging unit and an inspection unit, and detects the connection anomaly by retrieving a first cell voltage at the early stage of start of the constant-current charging and a second cell voltage at a stage where the charging has progressed to determine deviations from the average value of all the cell groups.

The charging unit comprises a number of stationary capacitors for charging mobile capacitors, which can be connected via a connecting socket. The charging unit comprises switching devices for connecting a first capacitor to the mobile capacitors and for the stepwise connection of a further capacitor in each case. The number and respective capacitance of the stationary capacitors is greater than that of the mobile capacitors. Between the individual steps, the stationary capacitors are separated from the mobile capacitors and the respective capacitors are connected in parallel, so that their voltage states can be equalized.

A parameter estimation device configured to estimate a parameter of an equivalent circuit model of a secondary battery includes: a voltage acquisition unit configured to acquire a voltage of the secondary battery in a time-series manner; a current acquisition unit configured to acquire a charge/discharge current of the secondary battery in a time-series manner; an estimation unit configured to estimate the parameter on the basis of the voltage acquired by the voltage acquisition unit and the charge/discharge current acquired by the current acquisition unit; and a prohibition unit configured to prohibit the estimation of the parameter performed by the estimation unit, on the basis of the charge/discharge current acquired by the current acquisition unit or the voltage acquired by the voltage acquisition unit.

The present disclosure discloses an electric tool power supply having a vehicle starting function. The electric tool power supply comprises a power supply component, a first output interface, and a second output interface. The power supply component is configured to store and provide electrical energy. The first output interface is electrically coupled to the power supply component. The power supply component is configured to provide operating voltage for an electric tool through the first output interface when the electric tool power supply is installed on the electric tool. The second output interface is electrically coupled to the power supply component. The power supply component is configured to output instantaneous large-current to a starter of a vehicle through the second output interface when the electric tool power supply is installed on the vehicle, so as to start the starter.

Cell selection circuit is provided between n cells connected in series, where n is an integer of 2 or more, and inductor, and is provided at both ends of the selected cell and both ends of inductor can be conductive. Clamp circuit includes at least one clamp switch for forming a closed loop including inductor in a state where cell selection circuit does not select any cells. Current detection circuit detects the value of the current flowing through inductor. Low-pass filter band-limits the detection value. Overcurrent detection circuit activates the protection of inductor when the band-limited detection value exceeds the threshold.

Disclosed is a smart balancing energy charging control system including a multi-power input unit connected to each of different power sources and receiving power for charging a battery pack from the different power sources, a micro-controller unit performing charging within rated power of the battery pack using charge power applied from the different power sources applied from the multi-power input unit and performing smart charging balancing control by determining whether a predetermined condition is met, and a battery pack charge connection unit coupled to the battery pack and charging the battery pack with the charge power applied through the smart charging balancing control under the control of the micro-control unit.

A balance charging method and a charging device are provided. The method includes: obtaining a voltage parameter of a plurality of battery cells; determining a control parameter set according to a first value relationship between the voltage parameter and a plurality of first threshold values, wherein the control parameter set includes a plurality of second threshold values; determining a charging rule of balance charging according to a second value relationship between the voltage parameter and the second threshold values; and performing the balance charging on the battery cells according to the charging rule.

A battery system with a large-format Li-ion battery pack powers attached equipment by discharging battery cells distributed among a plurality of battery packs. A limp home notification is generated from a smart lithium-ion battery pack to one or more application devices using an analog signal. The battery pack may provide broadcast messages over electronic communication lines, that includes state of charge (SoC), fault status, etc. which can be read by one or more application devices to enter limp home mode. In another example, a “fully charged” notification is generated from the smart lithium-ion battery pack to one or more application devices using an analog signal. The end device powered by the battery pack system receives and reacts to the outputted fully charged signal by modifying the state of the circuitry on the end device.