A mutual inductance approach for optimization of wireless energy transmission

Author

Minh Quoc Nguyen ; Woods, Peter ; Hughes, Zachariah ; Young-Sik Seo ; Rao, Smitha ; Chiao, J.-C.

Author_Institution

Electr. Eng. Dept., Univ. of Texas at Arlington, Arlington, TX, USA

fYear

2014

fDate

3-4 April 2014

Firstpage

1

Lastpage

4

Abstract

This work introduces a new approach of optimizing the efficiency of a wireless power transmission system in terms of mutual inductance. A circuit model was developed in PSpice to simulate the effect of mutual inductance by inductive coupling on power transfer efficiency. Experiments were conducted at 1.3 MHz with variations of distance between coils and coil sizes to change the mutual inductance in the equivalent circuit. Experimental results agreed well with the simulation model. The optimal mutual inductance to reach maximum power transfer efficiency for the inductive coupling system driven by a class-E amplifier was identified with respect to different coil sizes and distances. This method can guide the design strategy of the transmitter and receiver coils for specific applications.

Keywords

inductive power transmission; optimisation; PSpice; class-E amplifier; equivalent circuit; inductive coupling system; maximum power transfer efficiency; mutual inductance approach; wireless energy transmission optimization; Coils; Couplings; Inductance; Integrated circuit modeling; Receivers; Transmitters; Wireless communication; inductive coupling; mutual inductance; wireless power transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Microwave Circuits and Systems (WMCS), 2014 Texas Symposium on

Conference_Location

Waco, TX

Type

conf

DOI

10.1109/WMCaS.2014.7015874

Filename

7015874