METHOD AND APPARATUS FOR EFFICIENCY COMPLIANCE IN WIRELESS CHARGING SYSTEMS
First Claim
1. A method for operating a wireless charging system, comprising:
- detecting a device containing a battery in charging proximity to a wireless power source, the device containing battery charging metrics;
providing, by the wireless power source, a wireless charging power signal;
communicating the battery charging metrics to the wireless power source;
predicting a charging efficiency for charging the battery according to a charging efficiency standard; and
when the predicted charging efficiency is below a preselected threshold, the wireless charger commencing an action to increase the predicted charging efficiency.
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Abstract
A method and system for efficiency compliance in a wireless battery charging system includes a wireless power source that provides a wireless charging power signal to devices in proximity to the wireless power source. The devices have a receiving coil to receive electrical energy from the wireless charging power signal, and they communicate battery charging metrics to the wireless power source. The wireless power source uses the battery charging metrics to determine a predicted system efficiency to charge the devices over a period of time, and when the predicted efficiency is below an efficiency standard, the wireless power source undertakes an action to improve system efficiency.
275 Citations
20 Claims
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1. A method for operating a wireless charging system, comprising:
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detecting a device containing a battery in charging proximity to a wireless power source, the device containing battery charging metrics; providing, by the wireless power source, a wireless charging power signal; communicating the battery charging metrics to the wireless power source; predicting a charging efficiency for charging the battery according to a charging efficiency standard; and when the predicted charging efficiency is below a preselected threshold, the wireless charger commencing an action to increase the predicted charging efficiency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless power source, comprising:
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a charging coil which is driven to provide a wireless charging power signal in proximity to the charging coil; a communication circuit that communicates with a device having a rechargeable battery; and a controller that receives battery charging metric information from the device via the communication circuit, and which determines a predicted charging efficiency according to a charging efficiency standard; when the predicted charging efficiency is below a preselected threshold, the wireless power source commences an action to increase the predicted charging efficiency. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A wireless battery charging system, comprising:
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at least one device having a battery and a receiving coil for wirelessly receiving electrical energy to charge the battery; a wireless power source having a charging coil which is driven to provide a wireless charging power signal in proximity to the charging coil, a communication circuit that communicates with the at least one device, and a controller that receives battery charging metric information from the at least one device via the communication circuit, and which determines a predicted charging efficiency according to a charging efficiency standard; when the predicted charging efficiency is below a preselected threshold, the wireless power source commences an action to increase the predicted charging efficiency. - View Dependent Claims (19, 20)
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Specification