APPARATUSES AND RELATED METHODS FOR DETECTING MAGNETIC FLUX FIELD CHARACTERISTICS WITH A WIRELESS POWER TRANSMITTER
First Claim
1. A wireless power enabled apparatus, comprising:
- a wireless power transmitter, including;
a transmit coil configured to generate a wireless power signal for wireless power transfer to a wireless power receiver;
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 operably coupled with the at least one secondary sensing coil, the 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 signal received from the at least one secondary sensing coil.
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Accused Products
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.
37 Citations
20 Claims
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1. A wireless power enabled apparatus, comprising:
a wireless power transmitter, including; a transmit coil configured to generate a wireless power signal for wireless power transfer to a wireless power receiver; 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 operably coupled with the at least one secondary sensing coil, the 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 signal received from the at least one secondary sensing coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless power enabled apparatus, comprising:
a wireless power transmitter including; a transmit coil configured to generate a wireless power signal from an input signal; a plurality of secondary sensing coil located in proximity of the transmit coil, each secondary sensing coil configured to generate a signal of a magnetic flux field generated during wireless power transfer to a wireless power receiver; and control logic operably coupled with the plurality of secondary sensing coils, the control logic configured to detect at least one condition of a wireless power transfer system based, at least in part, on a measured combination of inputs from the signals generated by the plurality of secondary sensing coils. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of detecting a condition of a wireless power transfer system, the method comprising:
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generating with a wireless power transmitter a wireless power signal for wireless power transfer to a wireless power receiver; 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. - View Dependent Claims (17, 18, 19, 20)
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Specification