ANALYSIS AND EXPERIMENTS ON MID-RANGE WIRELESS POWER TRANSFER SYSTEM BASED ON MAGNETIC RESONANCE

Abstract

Wireless power transfer provides a method of transmitting electrical energy
from a source to one or more consumer devices without the wires. Therefore,
these systems bring a lot of convenience to modern life. Moreover, in some
special cases where wires cannot be used, wireless power transfer is an optimal
option. The wireless power transfer system is divided into three types: shortrange, mid-range and long-range. In this paper, we focus on the wireless power
transfer system at mid-range, the principle of the system is based on magnetic
resonance effect. We have successfully fabricated a wireless power transfer
system at a distance of 0.5m, achieving efficiency above 50%. This system can be
applied in industry and daily life helping the electrical system becomes compact
and increase aesthetics.