Wireless power receiver, wireless power transmission system, and power controller
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United States of America Patent
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May 31, 2016
Grant Date -
Sep 6, 2012
app pub date -
Oct 10, 2011
filing date -
Mar 1, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A wireless power receiver receives, at a receiving coil, AC power fed from a feeding coil by wireless using a magnetic field resonance phenomenon between the feeding coil and receiving coil. The wireless power receiver includes a loading circuit and a power controller. The loading circuit includes a loading coil that is magnetically coupled to the receiving coil to receive the AC power from the receiving coil and a load that receives the AC power supplied from the loading coil. The power controller includes a measurement unit and an adjustment unit. The measurement unit measures the receiving power of the load. The adjustment unit brings the receiving power close to its maximum value by changing the impedance of the loading circuit.
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