Apparatuses and related methods for detecting magnetic flux field characteristics with a wireless power transmitter
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United States of America Patent
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Nov 20, 2018
Grant Date -
Jul 28, 2016
app pub date -
Jan 22, 2015
filing date -
Jan 22, 2015
priority date (Note) -
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Abstract
A wireless power transmitter may include a transmit coil configured to generate a wireless power signal for wireless power transfer, at least one secondary sensing coil configured to generate a signal responsive to a magnetic flux field generated during the wireless power transfer, and control logic configured to detect at least one condition of a wireless power transfer system responsive to detecting distortion in the magnetic flux field from the at least one signal received from the secondary sensing coil. A related method may include generating with a wireless power transmitter a wireless power signal, generating with a plurality of secondary sensing coils one or more signals responsive to a magnetic flux field generated during the wireless power transfer, and detecting at least one condition of a wireless power transfer system responsive to the one or more signals generated by the plurality of secondary sensing coils.
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