| 摘要 |
A resonance type wireless power relay device comprising a battery part according to the present invention comprises a wireless power receiving antenna for receiving wireless power transmitted from a wireless power transmission device; a wireless power receiving circuit part for converting the power transmitted from the wireless power receiving antenna to the predetermined power; a battery part for storing the power transmitted from the wireless power receiving circuit part; a wireless power transmission circuit for receiving power from the battery part to convert to the predetermined power; and a wireless power transmission antenna for transmitting wireless power to an external terminal device, thereby storing the received wireless power, transmitting the same if necessary, and efficiently using the wireless power by selectively receiving or transmitting the wireless power. [Reference numerals] (10) Receiving antenna part; (20) Wireless power receiving circuit part; (30) Battery part; (40) Wireless power transmitting circuit part; (50) Transmitting antenna part; (60) Switch part; (AA) High power wireless power transmission circuit |
