Wireless charging systems with multiple power receiving devices
First Claim
1. A wireless power transmitting device with a charging surface configured to receive first and second wireless power receiving devices, the wireless power transmitting device comprising:
- wireless power transmitting circuitry having at least one coil that is configured to transmit wireless power signals; and
control circuitry configured to;
while the first wireless power receiving device is present on the charging surface, detect placement of the second wireless power receiving device on the charging surface; and
in accordance with detecting placement of the second wireless power receiving device on the charging surface, transmit a device identifier and battery charge status information associated with the first wireless power receiving device to the second wireless power receiving device using the at least one coil.
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Abstract
A wireless charging system may include a wireless power transmitting device that receives multiple wireless power receiving devices. A primary power receiving device that is used to display battery charge status information for other power receiving devices on the power transmitting device may be referred to as a hero device. The other wireless power receiving devices may be referred to as paired devices. When a paired device is added to a wireless power transmitting device where a hero device is already present, the hero device may verify that the paired device is on the same mat as the hero device. The hero device and paired device may then synchronously output a user notification. When a paired device is present on a wireless power transmitting device, the paired device may send battery charge status information to the wireless power transmitting device at predetermined intervals.
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Citations
17 Claims
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1. A wireless power transmitting device with a charging surface configured to receive first and second wireless power receiving devices, the wireless power transmitting device comprising:
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wireless power transmitting circuitry having at least one coil that is configured to transmit wireless power signals; and control circuitry configured to; while the first wireless power receiving device is present on the charging surface, detect placement of the second wireless power receiving device on the charging surface; and in accordance with detecting placement of the second wireless power receiving device on the charging surface, transmit a device identifier and battery charge status information associated with the first wireless power receiving device to the second wireless power receiving device using the at least one coil. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory computer readable storage medium, comprising instructions for:
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detecting placement of a second wireless power receiving device on a charging surface of a wireless power transmitting device while a first wireless power receiving device is present on the charging surface; and in accordance with detecting placement of the second wireless power receiving device on the charging surface, transmitting a device identifier and battery charge status information associated with the first wireless power receiving device to the second wireless power receiving device using at least one coil. - View Dependent Claims (9, 10, 11, 12)
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13. A method of operating a wireless power transmitting device that includes wireless power transmitting circuitry having at least one coil that is configured to transmit wireless power signals and that has a charging surface configured to receive first and second wireless power receiving devices, the method comprising:
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detecting placement of the second wireless power receiving device on the charging surface while the first wireless power receiving device is present on the charging surface; in accordance with detecting placement of the second wireless power receiving device on the charging surface, transmitting a device identifier associated with the first wireless power receiving device to the second wireless power receiving device using the at least one coil and transmitting battery charge status information associated with the first wireless power receiving device to the second wireless power receiving device using the at least one coil. - View Dependent Claims (14, 15, 16, 17)
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Specification