Title :
Efficiency improvement for magnetic resonance based wireless power transfer with axial-misalignment
Author :
Lee, Suk Gyu ; Hoang, H. ; Choi, Yoon Hyuck ; Bien, Franklin
Author_Institution :
Sch. of Electr. & Comput. Eng., Ulsan Nat. Inst. of Sci. & Technol., Ulsan, South Korea
Abstract :
Presented is an adaptive method to improve the efficiency of wireless power transfer systems with axial-misalignment. With an impedance matching circuit, the system performance increases by 11.4% with 50% misalignment at a distance of 70 cm. The proposed system achieves 48.4% relative efficiency improvement compared to a system without the proposed technique for the axial-misalignment case.
Keywords :
impedance matching; inductive power transmission; magnetic resonance; axial-misalignment; distance 70 cm; impedance matching circuit; magnetic resonance; wireless power transfer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.0012
