Abstract
Recently, equipment mounted secondary battery is being spread, and it demands charging with codes or cables. From such a background, technology of wireless power transmission is being paid attention to and application this technology to intelligent space (iSpace) enables ubiquitous power source to realize. There are some types of wireless power transmission. Above all, the method using magnetic resonance coupling is prominent in its characteristics, but in this method, efficiency of transmission changes by a location. So, we suggest simultaneous realization of wireless power transmission and distance sensing. It is sensing distance the high efficiency location previously and realize high efficiency transmission as a whole system. Furthermore, we use the multi-stage resonator for our system which is superior in terms of transmission range.
Published Version
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