Contactless power delivery for mobile device charging applications

Author

Xu Chen ; Liang, Yung C.

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore

fYear

2013

fDate

23-26 June 2013

Firstpage

1

Lastpage

4

Abstract

This work investigates the contactless power delivery system with an air gap of 0 to 3cm between the primary and secondary coils for mobile device charging applications. The proposed power electronic energy conversion system is built based on electromagnetic resonant coupling principle. Through the resonant coupling, the system is able to deliver a large percentage of energy to the secondary side through a wider air gap for charging applications. Coupling coils with converter and frequency tracking circuits are experimented. A user-friendly messaging system is added to the system to indicate the charging activation. The system was built in the laboratory with experimental measurement data to validate its functionality and performance.

Keywords

battery chargers; coils; inductive power transmission; contactless power delivery; converter frequency tracking circuits; coupling coils; distance 0 cm to 3 cm; efficiency 45 percent; electromagnetic resonant coupling principle; mobile device charging applications; primary secondary coils; wireless charging technology mobile devices; Coils; Couplings; Mobile handsets; RLC circuits; Resonant frequency; Wireless communication; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Modeling for Power Electronics (COMPEL), 2013 IEEE 14th Workshop on

Conference_Location

Salt Lake City, UT

ISSN

1093-5142

Print_ISBN

978-1-4673-4914-7

Type

conf

DOI

10.1109/COMPEL.2013.6626455

Filename

6626455