Efficiency Analysis of a Magnetic Resonance Coupled Wireless Power Transfer System

As the limitations of wired charging methods become more and more prominent, wireless charging as an emerging charging technology has been increasingly emphasized. Among these, resonant wireless charging technology has steadily advanced as circuit design and material research have progressed. This paper firstly introduces the background of wireless charging technology, its uses in daily life, and the significance of increasing wireless charging efficiency; then, this paper analyzes the major variables influencing the resonant wireless charging system's efficiency, including the circuit design, material selection, and system control strategy. By optimizing the coil design and adjusting the circuit parameters, the paper suggests multiple methods to raise the effectiveness of energy transfer. Finally, the paper verifies the effectiveness of these optimization strategies by establishing a simulation model, which offers theoretical justification for enhancing the wireless charging system's functionality in practical applications.