WIRELESS POWER TRANSFER SYSTEM

摘要

PURPOSE: A wireless power transmitting system is provided to control a coupling efficiency between resonators and impedance matching between a resonant circuit and a transceiver circuit by using the combination of serial and parallel resonant circuits. CONSTITUTION: A wireless power transmitting unit(100) includes a frequency oscillator(110), a power amplifier(120), and a first resonant antenna(140). A wireless power receiving unit(200) includes a second resonant antenna(210) and a power signal converter(230). The second resonant antenna receives magnetic energy transmitted from the first resonant antenna and converts the magnetic energy into a wireless power signal. Wireless power is transmitted between the wireless power receiving unit and the wireless power transmitting unit with a magnetic resonance method. A charging circuit(300) is connected to the wireless power receiving unit. [Reference numerals] (110) Frequency Oscillator; (120) Power amplifier; (140) First resonant antenna; (210) Second resonant antenna; (230) Power signal converter; (300) Charging circuit