A rechargeable battery jump starting device with a control switch backlight system. The control switch backlight system is configured to assist a user viewing the selectable positions of the control switch for selecting a particular 12V or 24V operating mode of the portable rechargeable battery jump starting device in day light, sunshine, low light, and darkness.

A method for power management for applications having duty-cycled high peak supply currents includes charging a buffer capacitor with a first current supplied by a battery, wherein the first current is limited by a current limiter. A load is supplied with a second current supplied by the buffer capacitor, wherein the second current comprises a pulsed current. The current limiter is controlled with at least one of a plurality of sensor inputs to limit a capacity degradation of the battery.

The present invention detects a predictive abnormal phenomenon in a battery pack and prevents the use of the battery pack before power is shut off at a fuse. The battery pack comprises: a battery cell; a connection unit which is electrically connected to the battery cell and is connected to an external electrical apparatus main body; and a control unit which controls the battery cell, wherein, when detecting an abnormal state such as chattering, the control unit causes a charge prevention signal (LS) and a discharge prevention signal (LD) to be continuously output and makes the charge and discharge of the battery pack impossible (steps 226-228). The continuous output of these prevention signals is configured not to be negated by an operation of a user, and the battery pack can be made unusable by software control.

According to at least one embodiment, the present disclosure provides an electro-hydraulic brake comprising: a main brake unit configured to provide braking hydraulic pressure to a plurality of wheel cylinders by driving a motor; an auxiliary brake unit connected to the main brake unit to be filled with high-pressure braking hydraulic pressure, and configured to provide braking hydraulic pressure to the plurality of wheel cylinders when an operation error of the main brake unit occurs; a main battery configured to supply power to the main brake unit and the auxiliary brake unit; and an auxiliary battery configured to supply power to the auxiliary brake unit when the main battery fails, wherein the auxiliary brake unit comprises an auxiliary brake control unit that controls charging and discharging of the auxiliary battery, and a power module that monitors a state of the main battery and transmits the state to the auxiliary brake control unit, and a battery management module that monitors a state of charge (SOC) of the auxiliary battery and transmits the state of charge to the auxiliary brake control unit.

An apparatus comprises a power electronic energy conversion system comprising a first energy storage device configured to store DC energy and a first voltage converter configured to convert a second voltage from a remote power supply into a first charging voltage configured to charge the first energy storage device. The apparatus also includes a first controller configured to control the first voltage converter to convert the second voltage into the first charging voltage and to provide the first charging voltage to the first energy storage device during a charging mode of operation and communicate with a second controller located remotely from the power electronic energy conversion system to cause a second charging voltage to be provided to the first energy storage device during the charging mode of operation to rapidly charge the first energy storage device.

The invention relates to a battery cell unit (10) which comprises a rechargeable electrochemical battery cell (11), a monitoring-and-control unit (12) connected in parallel to said battery cell (11), and a coupling unit in the form of a half bridge (14) comprising a first power semi-conductor (15) and a second power semi-conductor (16). Said battery cell unit (10) is equipped with an integrated circuit (20) that has a noise source (21). A switch-on delay can be achieved by means of said noise source (21). The invention also relates to a switching method for a battery system which comprises a plurality of intrinsically-safe battery cell units (10).

A charging device for inductive transfer of electric energy with a primary conductor arranged in a first housing, by which an alternating magnetic field can be generated when it is energized with an alternating current, electrically connected to a power source that is electrically connectable to a power electronics device for energizing the primary conductor with an alternating current. A drive means for moving the first housing from a first position to a second position, wherein the charging device is equipped with a fault detecting device, by which can be detected whether the first housing is or is not moved when a movement operation has been initiated by the drive means.

In one embodiment, an electric vehicle system includes a power system for charging a battery installed in an electric vehicle and comprising a bi-directional power and data connector for receiving power and data from or transmitting the power and data to an electric vehicle charging device, a communications system comprising a server and configured for receiving power from the power system and receiving data from or transmitting the data to the power system for download or upload at the electric vehicle charging device, and an authentication module for authenticating the electric vehicle charging device. A method is also disclosed herein.

A secondary battery protection circuit includes a first terminal connected to a power supply path between a secondary battery and a MOS transistor, a second terminal connected to the power supply path between a load and the MOS transistor, a third terminal connected to a gate of the MOS transistor, a fourth terminal connected to a back gate of the MOS transistor, a control circuit that outputs a switch control signal based on a detected abnormal state of the secondary battery, and a switch control circuit including a first switch for connecting the fourth terminal with the first terminal and a second switch for connecting the fourth terminal with the second terminal. At least one of the resistance between the fourth terminal and the first terminal and the resistance between the fourth terminal and the second terminal is greater than the on resistance value of the MOS transistor.

A charger for impulsed charging of a battery includes first and second charging contacts configured to receive a battery to be charged, a DC power input having first and second terminals, and an inductor having first and second ends. The first end is selectively conductively connectable to the first terminal and the second charging contact. The second end is selectively conductively connectable to the first charging contact and the second terminal. A switch is between the second end and the second terminal such that with the switch in a first configuration, the inductor is connected across the DC power input to enable magnetic energization of the inductor, and in a second configuration, the inductor is disconnected from the DC power input and connected across the charging contacts to enable magnetic energy in the inductor to discharge to the battery. The switch is alternated between configurations during charging of the battery.