Apparatus for wireless power transmission using multi antenna and method for controlling the same
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United States of America Patent
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Sep 8, 2015
Grant Date -
Mar 7, 2013
app pub date -
Sep 4, 2012
filing date -
Sep 5, 2011
priority date (Note) -
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Abstract
A wireless power transmission apparatus includes at least one power transmission antenna for transmitting a wireless power signal in a magnetic resonance manner by using a resonant frequency having different bandwidths from each other; a wireless power signal generating module for generating the wireless power signal; at least one wireless power converting module for converting a power level of the wireless power signal generated by the wireless power signal generating module and having different power level conversion ranges corresponding to the bandwidth of the resonant frequency of the power transmission antenna; a multiplexer matching module for selectively connecting the wireless power converting module to a corresponding power transmission antenna; and a control unit for selectively connecting the power transmission antenna and the wireless power converting module according to a required power of a device to be charged to adjust the power level of the wireless power signal.
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