| 20100045237 | MULTIFUNCTIONAL PORTABLE ENERGY STORAGE DEVICE - A multifunctional portable energy storage device, particularly, an energy storage device with functions of electric quantity storage, AC and DC charging, electric quantity detection, and DC boost output is provided, which is applicable for AC and DC bidirectional charging. The energy storage device includes an electrical core, a charging interface, and a powering interface. An external power supply charges the electrical core through the charging interface, and the electrical core supplies power to an external device through the powering interface. The energy storage device further includes an AC/DC converter, a control unit, and a charging management unit. The charging interface is connected to an input terminal of the AC/DC converter. An external AC current is converted into a DC current by the AC/DC converter and then input to the charging management unit. The charging management unit controls the DC current and supplies power to the electrical core, and the electrical core supplies power to the external device through the powering interface. The control unit controls the operations of the charging management unit. The present invention has a simple structure and can be used flexibly, which brings a lot of conveniences to users. | 02-25-2010 |
