FOB KEY EQUIPPED WITH A SELF-POWER GENERATOR, WHICH CAN REDUCE PRODUCTION COSTS BY OMITTING A FOB HOLDER

摘要

PURPOSE: An FOB key equipped with a self-power generator is provided to transmit authentication data by supplying the power source, which is generated by a self-power generator, to a FOB key.;CONSTITUTION: An FOB key equipped with a self-power generator comprises a coil(1), a permanent magnet(3), a rotor(5), a power source input circuit(9), a LF receiver(13), an RF transmitter(15), and a controller(17). The permanent magnet is separated from the outer circumference of the coil as a fixed distance. The permanent magnet generates a fixed intensity of magnetic field. The power source input circuit changes direct current into fixed voltage by using constant-voltage circuit. The LF receiver receives a LF wake-up signal from a target vehicle. The RF transmitter transmits an RF frequency, including authentication data, to a target vehicle. The controller receives a wakeup signal from the LF receiver and transmits authentication data to the RF transmitter.;COPYRIGHT KIPO 2012