Apparatus, system, and method for detecting a foreign object in an inductive wireless power transfer system
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United States of America Patent
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Sep 20, 2016
Grant Date -
Apr 18, 2013
app pub date -
Oct 13, 2011
filing date -
Oct 13, 2011
priority date (Note) -
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Abstract
An inductive wireless power transfer system comprises a transmitter configured to generate wireless power signal to a coupling region in response to an input signal. The inductive wireless power transfer system's control logic is configured to determine an input power of the input signal. The control logic is configured to determine a presence of a foreign object within the coupling region in response to a comparison of the input power and an output power of an output signal of a receiver within the coupling region. Related inductive wireless power transfer systems and methods for detecting a foreign object in an inductive wireless power transfer coupling region of an inductive wireless power transfer system are disclosed.
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