| 摘要 |
An apparatus for charging a battery of a mobile communication terminal using a wireless frequency of an RFID(Radio Frequency Identifier) reader is provided to charge a battery without an additional charging device by having a hybrid type antenna which produces an induced power and performs an RFID communication. An apparatus for charging a battery of a mobile communication terminal using a wireless frequency of an RFID reader includes a battery cell(210), a charging circuit module, a ferrite sheet(230), and an FPCB(Flexible Printed Circuit Board)(240). The battery cell has a positive terminal and a negative terminal. The battery cell charges and discharges a power induced through an antenna of the FPCB. The charging circuit module is coupled to a side of the battery cell, separates an RFID communication signal and a battery charging signal, and generates an induced current. The charging circuit module generates and charges a voltage and a current proper for the battery. The ferrite sheet is arranged on an upper part of the battery cell, and removes a noise and a wave of several dozens MHz to several GHz frequencies. The ferrite sheet is formed to increase an efficiency of the induced current which flows on the battery cell through the charging circuit module. An RFID antenna(241) and an RF power receiving antenna(242) are installed on an upper part of the ferrite sheet, and transmits and receives the information with an external RFID reader. The RFID antenna and the RF power receiving antenna are formed on the same line along an edge circumference of the FPCB.
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