Wireless charging system with device power compliance
First Claim
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1. A method of controlling an inductive charging system comprising:
- placing a plurality of inductive secondary devices within the operating range of the primary power supply;
determining the combined power requests of the secondary devices;
comparing the combined power requests to the power capacity of the primary power supply; and
if the combined power requests exceed the power capacity, then (a) determining a sequence in which the secondary devices will receive power and (b) communicating to the secondary devices information regarding the determined charging sequence, each power request including the charge ratio of a battery associated with the respective secondary device.
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Abstract
A method of controlling an inductive charging system on those occasions in which the combined power requests of a plurality of secondary devices exceed the power capacity of the power supply. The method includes at least one of (a) powering each device at a level below its requested level, (b) powering each device sequentially, and/or (c) powering each device in a repetitive pattern (e.g. time multiplexing). Also disclosed is a method of controlling an inductive charging system at least partially as a function of information received from the power management unit (PMU) of each secondary device.
80 Citations
12 Claims
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1. A method of controlling an inductive charging system comprising:
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placing a plurality of inductive secondary devices within the operating range of the primary power supply; determining the combined power requests of the secondary devices; comparing the combined power requests to the power capacity of the primary power supply; and if the combined power requests exceed the power capacity, then (a) determining a sequence in which the secondary devices will receive power and (b) communicating to the secondary devices information regarding the determined charging sequence, each power request including the charge ratio of a battery associated with the respective secondary device. - View Dependent Claims (2, 3)
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4. A method of controlling an inductive charging system comprising:
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placing a plurality of inductive secondary devices within the operating range of the primary power supply; determining the combined power requests of the secondary devices; comparing the combined power requests to the power capacity of the primary power supply; and if the combined power requests exceed the power capacity, then (a) determining a sequence in which the secondary devices will receive power and (b) communicating to the secondary devices information regarding the determined charging sequence, each power request including information regarding the state of a battery associated with the respective secondary device. - View Dependent Claims (5, 6)
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7. A method of controlling an inductive charging system comprising:
- providing an inductive primary power supply;
placing a plurality of inductive secondary devices within the operating range of the primary power supply; determining the combined power requests of the secondary devices;
comparing the combined power requests to the power capacity of the primary power supply; andif the combined power requests exceed the power capacity, then determining a sequence in which the secondary devices will receive power, developing a charging profile for each secondary device, and activating and deactivating the secondary devices in accordance with the charging profiles, wherein each secondary device is activated and deactivated in a repeating pattern. - View Dependent Claims (8, 9, 10, 11, 12)
- providing an inductive primary power supply;
Specification