Wireless Power Transfer—A Review

This paper presents the current state of knowledge in field wireless power transfer. The concept such a transfer and basic methods its implementation are described, together with block diagrams necessary devices. technologies electrical over short long distances characterized. most popular technology based on phenomenon electromagnetic induction is discussed great detail. analysis influences factors as coupling factor, shape coils, type ferromagnetic material from which core coils made, mutual position transmitting receiving analyzed properties system. advantages disadvantages used shown. Furthermore, system presented for charging batteries electric vehicles. standards also presented, development trends outlined.