POWER SUPPLY AND COMMUNICATION BRANCHING INTERFACE SYSTEM OF MOBILE DEVICE USING NEAR FIELD COMMUNICATION

摘要

PURPOSE: An interface system of a portable device is provided to secure stable operation of the portable device by using electromagnetic energy induced from a non-contact terminal device. CONSTITUTION: An internal power source(100) is a built-in battery. A power converter(200) converts electromagnetic energy induced from a non-contact terminal device into DC power. A power storage unit(300) stores the DC power converted by the power converter. An NFC(Near Field Communication) controller(400) controls communications between the smart card and the non-contact terminal device. An electric energy determining unit(500) generates a signal for controlling the driving of the NFC controller. A power supply converter(600) converts the power connection terminal of the NFC controller according to the signal of the electric energy determining unit.