A power supply unit includes a current path, and is capable of receiving external power from an external power supply and supplying the received external power to a power storage device, and receiving power from the power storage device and supplying the received power to a device mounted in a vehicle. The power supply unit comprises one or more power converters, a relay that switches the current path. and a housing that accommodates the one or more power converters and the relay therein. The one or more power converters are heavier in weight than the relay and disposed in the housing below the relay.

A charging adapter according to an embodiment comprises: a first battery; and a charging circuit configured to charge the first battery with external power and generate first power, wherein in a fast charging mode, the charging circuit is configured to charge a second battery in an electronic device detachably connected to the charging adapter based on the first power generated and the first battery is configured to generate a second power and charge the second battery with the second power while the charging circuit charges the second battery.

One example provides a battery pack for an electric vehicle. The battery pack includes a plurality of rechargeable battery modules, an enclosure defining an interior space in which the plurality of rechargeable battery modules are enclosed, and a charging port mounted to the enclosure, the charging port electrically connected within the enclosure to the plurality of rechargeable battery modules, the charging port accessible from an exterior of the enclosure and configured to electrically connect an external electrical charging source to the plurality of rechargeable battery modules.

An electronic device is provided. The electronic device includes a battery and a power management module electrically connected to the battery and configured to manage a charging or a discharging of the battery. The power management module includes a first charging circuit configured to include a first switch group, a first capacitor, and a first inductor, a second charging circuit configured to include a second switch group, a second capacitor, and a second inductor, and a power path distributor configured to distribute power from a first external power supply device or a second external power supply device to the first charging circuit or the second charging circuit.

An apparatus includes a first group of switches connected in series, a second group of switches connected in series, a first flying capacitor between a first common node and a third common node of the first group of switches, a second flying capacitor between a first common node and a third common node of the second group of switches, wherein the first group of switches and the second group of switches are configured such that the apparatus operates in one of three operating modes including a bypass operating mode, a hybrid operating mode and a boost/buck operating mode.

A charging control method and apparatus, and a device to-be-charged are provided. The method is applicable to the device to-be-charged. The device to-be-charged includes a battery which includes multiple cells. In charging of the device to-be-charged, K stages of constant-current charging is applied to the battery, where K is a positive integer greater than or equal to one. In each of the K stages, a preset current corresponding to the stage is applied to the battery for constant-current charging until a voltage of the battery reaches a preset voltage corresponding to the stage. In each of the K stages, a charging voltage applied to the battery and a voltage across each of the multiple cells are detected. When the charging voltage and/or a voltage across any of the multiple cells is higher than the preset voltage corresponding to the stage, proceed to a next constant-current charging stage.

A method includes configuring a high voltage charging system to operate in a wireless charging mode to charge a battery after a power source has been disconnected from the high voltage charging system, wherein the high voltage charging system comprises a rectifier, a first power converter, a second power converter connected in cascade, and a load switch connected between a voltage bus and a power port configured to be connected to the power source, and configuring the high voltage charging system to operate in a wired charging mode to charge the battery after the power source has been connected to the high voltage charging system.

A power adapter provides power to an information handling system. The power adapter includes a power supply and a power delivery controller. The power supply receives an alternating current (AC) input at one of a plurality of input voltages, and provides a direct current (DC) output at one of a plurality of output voltages, each output voltage being associated with a current limit. The power delivery controller determines, upon being plugged into an AC power source, a first input voltage of the AC power source, determines a DC power delivery capability of the information handling system, sets a first output voltage and a first current limit of the power supply DC output based upon the first input voltage and the DC power delivery capability, the first output voltage and the first current limit defining a first power limit to the information handling system, determines that the power supply can provide a second power limit that is greater than the first power limit based upon an operating condition of the power supply, and communicates the second power limit to the information handling system.

An operating system for a standby generator includes a control unit, a switch, an inverter, a terminal, a current sensor, a starter circuit, a power control circuit, and an ignition kill circuit. The control unit is powered by a rechargeable twelve volt DC battery. The switch is selectively operable by the control unit to connect one of a first input or a second input to an output. The second input receives the supply of electrical power from an internal combustion engine. The inverter is positioned between the DC battery and the first input, and supplies electrical power to the electrical device when a movable contact of the switch connects the output to the first input. The power control circuit is connected to the control unit and is operable to adjust the movable contact of the switch to selectively connect the output to either the first input or the second input.

A terminal (20) and a terminal charging method are disclosed. The terminal (20) includes a charging circuit (23), a branch selector switch (22), and a controller (21). The charging circuit (23) includes a boost charging branch (231), a direct charging branch (232), and a buck charging branch (233) connected to one another in parallel. The branch selector switch (22) is respectively connected to the boost charging branch (231), the direct charging branch (232), and the buck charging branch (233). The controller (21) is connected to the branch selector switch (22) and configured to acquire an output capability parameter of an external charger and send a switching signal to the branch selector switch (22) according to the output capability parameter, so as to enable the branch selector switch (22) to switch on one of the boost charging branch (231), the direct charging branch (232), and the buck charging branch (233).