An intelligent energy system includes an energy-consuming appliance, a battery module coupled to the appliance, and a bidirectional converter coupled to the appliance and the battery module by a power bus. The battery module is configured to provide power to the appliance. The bidirectional converter converts between alternating current (AC) and direct current (DC) and interfaces with a power infrastructure external to the appliance. The system further includes a control unit communicatively coupled to the battery module, the bidirectional converter, and the appliance. The control unit is configured to determine a charge and discharge schedule for the battery module. The battery module coupled with the bidirectional converter provides uninterrupted power to the appliance, abstracts the power demands of the appliance from local power infrastructure, and allows for greater appliance peak power draw than would otherwise be practical or possible.

Described herein is an electric vehicle charging arrangement for charging an electric vehicle, including an electric vehicle supply equipment (EVSE), where the EVSE includes: a power module configured to provide electrical energy to charge the electric vehicle, an output configured to connect the power module to the electric vehicle for charging the electric vehicle, and a direct current (DC) bus provided between and connected to the power module and the output and configured to transport electric energy from the power module to the output, where the electric vehicle supply equipment includes a pre-charge module configured to pre-charge the output, and where the pre-charge module is separate from the power module and electrically connected to the DC bus.

Described herein is an electric vehicle charging arrangement for charging an electric vehicle, including an electric vehicle supply equipment (EVSE), where the EVSE includes: a power module configured to provide electrical energy to charge the electric vehicle, an output configured to connect the power module to the electric vehicle for charging the electric vehicle, and a direct current (DC) bus provided between and connected to the power module and the output and configured to transport electric energy from the power module to the output, where the electric vehicle supply equipment includes a pre-charge module configured to pre-charge the output, and where the pre-charge module is separate from the power module and electrically connected to the DC bus.

Example bidirectional energy transmission apparatus and methods are described. An example of a bidirectional energy transmission apparatus includes a controller and a bidirectional energy transmission circuit. A control terminal of the controller is connected to a controlled terminal of the bidirectional energy transmission circuit. In the example, the controller is configured to control the bidirectional energy transmission circuit to be in a rectification working state, so as to convert, into a first direct current voltage, a three-phase or single-phase alternating current voltage that is input from a first port of the bidirectional energy transmission circuit, and output the first direct current voltage from a second port of the bidirectional energy transmission circuit. The controller is configured to control the bidirectional energy transmission circuit to be in an inversion working state, so as to convert, into a three-phase or single-phase alternating current voltage.

Example bidirectional energy transmission apparatus and methods are described. An example of a bidirectional energy transmission apparatus includes a controller and a bidirectional energy transmission circuit. A control terminal of the controller is connected to a controlled terminal of the bidirectional energy transmission circuit. In the example, the controller is configured to control the bidirectional energy transmission circuit to be in a rectification working state, so as to convert, into a first direct current voltage, a three-phase or single-phase alternating current voltage that is input from a first port of the bidirectional energy transmission circuit, and output the first direct current voltage from a second port of the bidirectional energy transmission circuit. The controller is configured to control the bidirectional energy transmission circuit to be in an inversion working state, so as to convert, into a three-phase or single-phase alternating current voltage.

A vehicle is a vehicle in which a mounted power storage is charged with electric power from a charging facility, the vehicle including a communication unit that obtains a first voltage value indicating an outputtable voltage value that can be outputted from the charging facility and a processing unit that transmits to the charging facility, a third voltage value which is equal to or smaller than the first voltage value as a maximum voltage of the power storage when a second voltage value indicating a maximum voltage value of the power storage is larger than the first voltage value.

A vehicle is a vehicle in which a mounted power storage is charged with electric power from a charging facility, the vehicle including a communication unit that obtains a first voltage value indicating an outputtable voltage value that can be outputted from the charging facility and a processing unit that transmits to the charging facility, a third voltage value which is equal to or smaller than the first voltage value as a maximum voltage of the power storage when a second voltage value indicating a maximum voltage value of the power storage is larger than the first voltage value.

An electronic device according to various embodiments of the present invention may comprise: a connector comprising at least one power terminal for receiving power supplied from an external electronic device, and at least one data terminal for transmitting/receiving data to/from the external electronic device; and a processor comprising at least one sensing terminal connected to the at least one data terminal through at least one resistor, wherein the processor is configured to: when the external electronic device is connected to the electronic device through the connector, check a value corresponding to the voltage at the at least one data terminal, by using the at least one sensing terminal; and transmit, to the external electronic device, a control signal for controlling power supply from the external electronic device, on the basis of the value checked by means of the at least one sensing terminal. The various embodiments of the present invention may also include other embodiments.

A downhole power system includes an energy storage adapted to operate at high temperatures, and a modular signal interface device that serves to control the energy storage component as well as offer a means of data logging at high temperatures. The controller is fabricated from pre-assembled components that may be selected for various combinations to provide desired functionality. The energy storage may include at least one ultracapacitor.

A power supply unit for an aerosol inhaler includes: a power supply able to discharge power to a load for generating an aerosol from an aerosol source; a connector able to be electrically connected to an external power supply; a control device configured to control at least one of charging and discharging of the power supply or configured to be able to convert power which is input from the connector into charging power for the power supply; and a zener diode provided between the connector and the control device so as to be connected in parallel with the control device. A maximum value of zener voltage of the zener diode is lower than a maximum operation guarantee voltage of the control device.