Abstract:
Techniques for charging a rechargeable battery having at least one rechargeable cell are described. A battery charger applies a constant current to charge the rechargeable cell and periodically measures a value of voltage of the rechargeable cell. The value of voltage is tracked over a time period required to charge the rechargeable cell to have the measured value of voltage be substantially equal to a crossover value of voltage for the rechargeable cell. A constant voltage is applied substantially equal to the crossover voltage for a second period of time, with the second period of time selected based on the tracked time period. The charging is terminated after the second period of charging time has elapsed.
Abstract:
An apparatus and method are provided for transmitting and receiving power for wireless power transmission. A power transmitting apparatus includes a power supplier for generating power; a resonator for transmitting the power generated by the power supplier to a plurality of power receiving apparatuses; and a controller for determining whether a power transmission to a new power receiving apparatus is possible using a power receiving apparatus management table, when the new power receiving apparatus is detected while the power transmissions of the plurality of power receiving apparatuses are being performed, and controlling the resonator to transmit power to the new power receiving apparatus, when the power transmission to the new receiving apparatus is possible. The power transmitting apparatus stably supplies power to a plurality of power receiving apparatuses by determining power transmission states of the plurality of power receiving apparatuses.
Abstract:
배터리의 충전을 위한 충전 방법 및 장치가 제공된다. 충전 장치는 서버로 충전 식별자와 상기 미터 식별자를 포함하는 충전 개시 요청을 전송하고, 상기 서버로부터 상기 충전 개시 요청에 대한 응답으로 충전 개시 응답을 수신한다. 충전 장치는 충전이 완료됨에 따라 상기 충전에 사용된 전력량을 지시하는 충전 완료를 상기 서버로 전송하고, 상기 서버부터 상기 배터리의 충전에 따른 과금 정보를 지시하는 충전 정보를 수신한다.
Abstract:
A charger includes: a connection portion configured to connect either one of a battery pack and an electric device as an object device, the electric device being configured to generate a power supply related signal related to power supply thereto; a determination unit configured to determine which the battery pack or the electric device is the objet device which is connected to the connection portion; and a control unit configured to charge the batter pack through the connection portion when the battery pack is connected to the connection portion, the control unit configured to control power supply to the electric device through the connection portion in accordance with the power supply related signal.
Abstract:
A power control device that controls electric power supplied from an external power supply to a vehicle includes: a switching unit (SW) that switches a supply voltage value of the external power supply (11); and a control unit (100) that generates a signal (CPLT), indicating an allowable current value of the external power supply (11), to transmit the signal (CPLT) to the vehicle (1), and that controls the switching unit (SW) to thereby control the supply voltage value, wherein the control unit (100) changes the signal (CPLT) and the supply voltage value on the basis of a given electric power command value (Pcom).