Title :
Shift of the optimized quality factor frequency for inductive wireless power applications
Author :
Thoen, Bart ; Stevens, Nobby
Author_Institution :
Fac. of Eng. Technol., KU Leuven, Ghent, Belgium
Abstract :
In this paper, we describe how the quality factor of a coil depends on the frequency in the case of litz wires for wireless, inductive power applications. The importance of this work relates to the observation that the link efficiency of a induced coupled system depends critically on the quality factors of the transmitter and receiver coils. An important design choice in these systems is the frequency at which the application operates. The winding of the litz wire and the presence of ferrite shifts the frequency at which the maximal quality factor, and thus link efficiency, is obtained.
Keywords :
Q-factor; coils; ferrites; inductive power transmission; coil quality factor; ferrite; inductive wireless power; litz wire; optimized quality factor frequency; receiver coils; transmitter coils; Coils; Electrical resistance measurement; Ferrites; Q-factor; Resistance; Wireless communication; Wires; Q-factor; inductive powering; litz wire;
Conference_Titel :
Electromagnetic Compatibility (EMC Europe), 2014 International Symposium on
Conference_Location :
Gothenburg
DOI :
10.1109/EMCEurope.2014.6930873
