Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Phase Shifted Magnetic Resonance Wireless Power Transfer System with Two Transmit Coils
Authors Jae-Yup Jung ; Kang-Hyun Yi
Page pp.290-293
ISSN 1229-2214
Keywords Wireless power transfer ; Magnetic resonance ; Phase shift ; Magnetic field
Abstract This paper proposes a new magnetic resonant wireless power transfer system. Two transmitters are arranged to secure a range wider than the existing one-to-one resonance, thereby enhancing the practicality of the system. Two identical transmission units are arranged to strengthen the magnetic field and to subsequently increase the magnitude and distance of the power transmitted to the reception unit. A constant power can be maintained in a wide range through the phase control of different output powers according to the positions of the transmitting and receiving coils. A constant power can also be obtained by transmitting to the receiver. The experiment results show that the proposed method outperforms the conventional method.