MOBILE PHONE ACCESSORY USING LED

摘要

PURPOSE: A mobile phone accessory using an LED is provided to give an aesthetic effect to a mobile phone by radiating an LED while using the mobile phone without affecting a speech quality of the mobile phone. CONSTITUTION: A radio wave receiver(10) has an antenna(11) sensing radio wave transmitted and received through a mobile phone. A power converter(20) includes a diode(21) and converts the radio wave sensed by the radio wave receiver(10) into DC power. A power adjusting unit(30) includes a resister(31) and applies a certain voltage to the DC power which has been converted in the power converter(20). A light emitting unit(40) includes a transistor(41) switched according to a level of power adjusted by the power adjusting unit(30) and an LED(42) driven according to a switching operation of the transistor(41). A battery(50) supplies DC power to the power adjusting unit(30) and the light emitting unit(40).