Abstract: A battery protection charging method and a charging system thereof are provided. The battery protection charging method includes obtaining an operation parameter of a battery. When a first protection condition is satisfied, a charging voltage of the battery is reduced to a first voltage. When a second protection condition is satisfied, the charging voltage of the battery is reduced to a second voltage. The second voltage is lower than the first voltage. The first (second) protection condition includes the cycle-life count is higher than a first (second) cycle-life threshold, the high voltage cumulative time is higher than a first (second) high voltage time threshold, and the high voltage-temperature cumulative time is higher than a first (second) high voltage-temperature time threshold.

Abstract: A method for operating a battery system connected to an electric energy system, having battery strings connected in parallel, including a battery, an inverter and a transformer Each battery is chargeable and dischargeable. Each battery has an installed, maximum charge capacity and a capacity that is available in the current operating state. During discharging the currently available capacity corresponds to a state-of-charge of the respective battery, and during charging the currently available capacity corresponds to a difference between the maximum charge capacity and the state-of-charge of the respective battery. A total charge output requested during the charging of the battery system and/or a total discharge output requested during the discharging of the battery system is distributed as part outputs over the battery strings and thus over the batteries dependent on the currently available capacities of the batteries of the battery strings connected in parallel.

Abstract: An embodiment of the present disclosure discloses a wireless charging device comprising a wireless receiving module, a controller, a first charging module, and a second charging module. The wireless receiving module is configured to receive a wireless charging signal in response to the wireless charging device being in a wireless sensing area, transmit a state indication signal to the controller, receive a charging indication signal from the controller, and determine whether to transmit the wireless charging signal to the first charging module according to the charging indication signal.

Abstract: In a portable device, a first battery has a positive terminal coupled to, through a first switch, an interface used to receive input power, and a negative terminal coupled to a reference terminal. A second battery has a positive terminal coupled to the interface, and a negative terminal coupled to the reference terminal through a second switch, and to the first battery's positive terminal through a third switch. A control circuitry controls the switches such that the device has multiple operation modes including at least a one-battery charging mode and a two-battery-in-series charging mode. In the one-battery charging mode, the circuitry turns off the third switch, and controls the other switches such that one battery is charged by the input power. In the two-battery-in-series charging mode, the control circuitry turns on the third switch and turns off the other switches, such that two batteries are charged by the input power.

Abstract: A smart battery device includes a battery unit, a temperature-sensing unit and a processing unit. The temperature-sensing unit senses the ambient temperature to generate a temperature signal. The processing unit is coupled to the battery unit and the temperature-sensing unit. In a charging mode, the processing unit receives the temperature signal and obtains the power capacity of the battery unit. The processing unit sets full capacity according to the temperature signal and generates an indication flag when the power capacity of the battery unit reaches the full capacity, wherein the indication flag is used to indicate that the battery unit is in a fully charged state.

Abstract: The present disclosure is directed to a battery charger for charging a connected battery pack. The battery charger is capable of determining an impedance characteristic value of the battery pack and adjusting a charging scheme, including an initial and/or subsequent charging rates for the battery pack based on the determined impedance characteristic value. The present disclosure is also directed to a method of charging a battery pack. The method includes determining an impedance characteristic value of the battery pack and adjusting a charging scheme, including an initial and/or subsequent charging rates for the battery pack based on the determined impedance characteristic value.

Abstract: A battery control device for controlling a battery includes an acquisition unit configured to acquire a state of the battery, and an estimation unit configured to estimate a full charge capacity of the battery by selecting, based on the state acquired by the acquisition unit, a first estimation method for estimating the full charge capacity of the battery based on an accumulated current value obtained by accumulating a charging current of the battery obtained by performing a charging process and a second estimation method for estimating the full charge capacity of the battery based on aging deterioration data showing a deterioration state of the battery with aging.

Abstract: Apparatuses and systems are provided for improving wireless power transmission for mobile devices. An enclosure for a mobile device may include a first electrical coil configured to establish a first wireless coupling with a transmitter coil of a power supply and a second electrical coil configured to establish a second wireless coupling with the first electrical coil and to establish a third wireless coupling with a receiver coil of a mobile device. A distance between the receiver coil and the transmitter coil may exceed a range over which the transmitter coil may be able to transfer power to the receiver coil via a single wireless coupling between the transmitter coil and the receiver coil. The first wireless coupling, the second wireless coupling, and the third wireless coupling, when established, may enable the transmitter coil to perform a wireless power transfer to the receiver coil.

Abstract: Various disclosed embodiments include illustrative controller modules, direct current (DC) fast charging devices, and methods. In an illustrative embodiment, a controller module for a DC-DC converter includes a controller and computer-readable media configured to store computer-executable instructions configured to cause the controller to receive an input voltage Vin to the DC-DC converter, receive an output DC voltage Vo from the DC-DC converter, generate control signals configured to control a charging output of the DC-DC converter responsive to the received input voltage Vin and output voltage Vo, and output the generated control signals to the DC-DC converter.

Abstract: A system includes: a switching converter circuit adapted to be coupled between an input voltage source and a load; and an integrated circuit adapted to be coupled between the input voltage source and a battery and configured to charge the battery. The integrated circuit has: a monitoring circuitry adapted to be coupled to the battery and configured to detect a transient fault condition of the integrated circuit; a power stage adapted to be coupled between the input voltage source and the battery, the power stage having a power switch; and a control circuit coupled between the monitoring circuitry and the power stage, the control circuit configured to provide a control signal to adjust a conductivity of the power switch responsive to a detected transient fault condition.

Abstract: Semiconductor device includes a controller for controlling a charging of a battery cell. When the battery cell is charged, the controller generates a voltage command value which instructs to a charger so that an upper limit value of an output voltage output from the charger is higher than a predetermined voltage which is a maximum potential voltage that the battery cell can be charged maximally.

Abstract: Systems for a current limiting circuit are provided. Aspects include a first set of batteries coupled to a battery terminal, a power converter coupled to a power converter terminal, wherein the battery terminal is coupled to the power converter terminal, a first current limiting circuit in series with the first set of batteries, wherein the current limiting circuit comprises a first circuit comprising a first transistor in series with a first diode, a second circuit comprising a second transistor in series with a second diode, a first RL circuit, wherein the first RL circuit, the first circuit, and the second circuit are arranged in parallel, a controller configured to operate the first current limiter in a plurality of modes including a battery discharge mode including the controller operating the first transistor in an off state, and operating the second transistor in a switching state.

Abstract: A portable charging case, including an unlocking assembly and a push rod, user can push the unlocking assembly in the direction towards the storage space after the portable lighting device is fully charged. The push rod then pushes the magnetic charging device away from the portable lighting device so that the magnetic charging device disconnects from the portable lighting device. Users can take the portable lighting device out from the charging case more quickly and easily, thereby enhancing user experience for using the charging case.

Abstract: A multi-battery system implements operations to equalize discharge path impedance. The system includes first and second batteries of different capacities each coupled to a battery rail that supports source load electronics. The system includes charge control electronics configured to decouple the first battery from the battery rail when the discharge path of the first battery and the discharge path of the second battery have unequal impedance and to recouple the first battery to the battery rail when the discharge path of the first battery and the discharge path of the second battery have substantially equal impedance.

Abstract: A battery system includes a nickel-metal hydride battery and an ECU that controls charging and discharging of the nickel-metal hydride battery. The ECU calculates a discharge electricity amount showing an integrated value of a current discharged from the nickel-metal hydride battery, and further calculates ?SOC of the nickel-metal hydride battery in a prescribed time period. The ECU calculates a charge reserve capacity of the nickel-metal hydride battery based on a temperature of the nickel-metal hydride battery, the discharge electricity amount, and the ?SOC.

Abstract: An on-board charger is provided with a first stage for converting an alternating current (AC) voltage from an external power supply to a direct current (DC) voltage. A capacitor is coupled to the first stage to receive the DC voltage and to provide a DC-Link voltage. A second stage is coupled to the capacitor to boost the DC-Link voltage and to supply the boosted DC-Link voltage to charge a battery. A processor is programmed to adjust the DC-Link voltage between a first setpoint and a second setpoint based on a battery voltage value.

Abstract: The power conditioner determines possible total power and working individual power to be in a range that possible individual power of each of the power supply units is not exceeded. The possible total power is determined from the possible individual power, of each of the power supply units, determined based on the battery information detected by each of the unit controllers, collected by a master controller from each of the unit controllers. The working individual power is determined based on a power deviation indicating a difference of charging and discharging power between the power supply units. The power conditioner causes charging and discharging of each of the power supply units within the calculated working individual power.

Abstract: A capacitor discharge circuit for discharging a capacitor to a discharge load. The discharge circuity includes current level sensing circuitry for producing a control signal circuity response to current passing to the discharge load. The discharge circuity modulates a level of current passing from the capacitor to the discharge load over time between predetermined ranges of current levels in response to the control signal.

Abstract: Various embodiments of a battery charging apparatus are disclosed, along with methods of charging and rejuvenating a battery using the apparatus. The apparatus may include a positive electrode and a negative electrode which are configured to connect to a battery, and a charging current generator generating a charging current that charges the battery for a period of time via the positive and and negative electrodes by adding electric charge to the battery. The charging current is generated based on parameters of the battery, including a charging constant and an initial charging state. In some embodiments, a natural logarithm of a ratio of the added electric charge to the initial charging state substantially equals to a product of the charging constant and a length of the period of time and negative one.

Abstract: A constant current charging device is configured to charge a device to be charged and includes: a reference current source configured to provide a reference current; a current mirror electrically coupled to the reference current source and configured to output a mirror current; a current adjusting unit electrically coupled to the current mirror and the device to be charged and configured to output a charging current according to the mirror current to charge the device to be charged; and a current compensation unit electrically coupled to the current mirror and the current adjusting unit and configured to adjust the charging current according to a reference voltage.