Abstract
The analysis of wireless power transfer efficiency is currently limited to a
priori choice of spot frequencies. This paper presents a wireless power transfer system
for applications in displays which examine transfer efficiency for a broad range of
resonant frequencies. The system provides a dc voltage output, achieved using
self-oscillation in coupled inductor-capacitor resonator pair. Measurement results
corroborate well with simulations, enabling optimization of transfer efficiency with
respect to different system parameters including resonant frequency. It turns out that
the system efficiency is maximized for a resonant frequency in the range of 0.2 to
10 MHz.
© 2016 IEEE
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