WIRELESS POWER TRANSFER APPARATUS AND SYSTEM INCLUDING THE SAME
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United States of America Patent
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Issued Date -
Mar 25, 2021
app pub date -
Sep 22, 2020
filing date -
Sep 23, 2019
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Abstract
A wireless power transmitter can include a power transmitter including a plurality of first transmitting coils and a second transmitting coil; and a controller, in which the plurality of first transmitting coils are disposed on a same plane, the second transmitting coil is disposed on a different plane than the plurality of first transmitting coils, the second transmitting coil is disposed at a center of a region corresponding to the plurality of first transmitting coils, an area of a region corresponding to the second transmitting coil is smaller than an area of the region corresponding to the plurality of first transmitting coils, and the controller is configured to transmit power to a wireless power receiver through the plurality of first transmitting coils and the second transmitting coil when a receiving coil in the wireless power receiver is of a first type, and transmit power to the wireless power receiver through the second transmitting coil when the type of the receiving coil is of a second type.
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