Wireless power transfer adaptation triggers
First Claim
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1. A wireless power transfer (WPT) source device, comprising:
- an array of coils configured to establish wireless charging pathways with a corresponding coil of a WPT recipient device; and
a WPT monitor module configured to detect a first event based on at least one of the established wireless charging pathways and sensor information and to trigger a second event based on the first event in the WPT recipient device;
wherein the first event includes the WPT recipient device being placed on a surface of the WIT source device, and wherein the WPT monitor module is further configured to;
determine coupling coefficients between the array of coils of the WPT source device and the corresponding coil of the WPT recipient device, the coupling coefficients representing a current coupling coefficient fingerprint; and
compare the current coupling coefficient fingerprint to a plurality predetermined coupling coefficient fingerprints to determine a location of the WPT recipient device on the surface of the WPT source device, wherein the plurality of predetermined coupling coefficient fingerprints are associated with corresponding known locations on the surface of the WPT source device.
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Abstract
Adaptive multi-pathway wireless charging is described. In one aspect, embodiments enable one or more wireless charging pathways to be established concurrently in a wireless charging environment. The wireless charging pathways use same or different frequencies, powers, wireless power transfer (WPT) standards, and WPT configurations. Embodiments for adaptively configuring wireless charging based on detected events or changes in WPT characteristics are also provided.
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Citations
17 Claims
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1. A wireless power transfer (WPT) source device, comprising:
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an array of coils configured to establish wireless charging pathways with a corresponding coil of a WPT recipient device; and a WPT monitor module configured to detect a first event based on at least one of the established wireless charging pathways and sensor information and to trigger a second event based on the first event in the WPT recipient device; wherein the first event includes the WPT recipient device being placed on a surface of the WIT source device, and wherein the WPT monitor module is further configured to; determine coupling coefficients between the array of coils of the WPT source device and the corresponding coil of the WPT recipient device, the coupling coefficients representing a current coupling coefficient fingerprint; and compare the current coupling coefficient fingerprint to a plurality predetermined coupling coefficient fingerprints to determine a location of the WPT recipient device on the surface of the WPT source device, wherein the plurality of predetermined coupling coefficient fingerprints are associated with corresponding known locations on the surface of the WPT source device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for use in a wireless power transfer (WPT) source device, comprising:
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detecting a first event based on at least one of sensor information and a wireless charging pathway established with a WPT recipient device, wherein the first event includes the WPT recipient device being placed on a surface of the WPT source device; and triggering a second event based on the first event, including; determining coupling coefficients between an array of coils of the WPT source device and a corresponding coil of the WPT recipient device, the coupling coefficients representing a current coupling coefficient fingerprint; and comparing the current coupling coefficient fingerprint to a plurality of predetermined coupling coefficient fingerprints to determine a location of the WPT recipient device on the surface of the WPT source device, wherein the plurality of predetermined coupling coefficient fingerprints are associated with corresponding known locations on the surface of the WPT source device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification