Performance And Application Scenarios Comparison of Wireless Charging Technologies

Feiyang Xie

doi:10.54097/fpwbps51

Authors

Feiyang Xie

DOI:

https://doi.org/10.54097/fpwbps51

Keywords:

Wireless Charging; Inductive Power Transfer; Magnetic Resonance Coupling; Radio Frequency Energy Transfer; Electric Vehicles.

Abstract

With the proliferation of portable electronic devices, wearable devices, and electric vehicles, energy supply methods are facing new demands for convenience and reliability. Traditional wired charging methods increasingly reveal issues such as connector wear, lack of flexibility, and safety hazards, making wireless charging a widely focused research direction in both academia and industry. In recent years, related research has continuously broken through bottlenecks in transmission efficiency, stability, and spatial flexibility, laying the foundation for building more efficient energy networks in the future. This paper reviews and analyzes three mainstream wireless charging technologies: inductive power transfer (IPT), magnetic resonance coupling (MRC), and radio frequency (RF) energy transfer. IPT utilizes transmitting coils to generate alternating magnetic fields for efficient power transfer within a few centimeters; MRC achieves medium-distance energy transfer through resonant coupling between transmitter and receiver coils, supporting multi-device sharing; RF technology utilizes far-field radio frequency waves to achieve meter-level energy coverage, though with relatively low overall efficiency. This paper compares the performance differences of these three methods in terms of frequency, transmission distance, efficiency, and multi-device support, and analyzes their applicability in typical scenarios such as consumer electronics, electric vehicles, and medical devices. The research results help clarify the current development context of wireless charging technology and provide reference value for the design and optimization of future novel wireless power supply systems.

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