WIRELESS CHARGING SYSTEM WITH DEVICE POWER COMPLIANCE
First Claim
Patent Images
1. A method of controlling an inductive charging system comprising:
- providing an inductive primary power supply;
placing an inductive secondary device within the operating range of the primary power supply;
providing information from the power management unit of the secondary device to the primary power supply; and
controlling the primary power supply at least partially as a function of the information from the power management unit.
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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.
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Citations
23 Claims
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1. A method of controlling an inductive charging system comprising:
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providing an inductive primary power supply; placing an inductive secondary device within the operating range of the primary power supply; providing information from the power management unit of the secondary device to the primary power supply; and controlling the primary power supply at least partially as a function of the information from the power management unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. 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 an inductive primary power supply; determining the combined power requests of the secondary devices; comparing the combined power requests of the secondary devices to the power capacity of the primary power supply; and if the combined power requests exceed the power capacity, then communicating to at least one secondary device that it will receive power at a reduced level from its power request. - View Dependent Claims (8, 9, 10, 11)
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12. 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. - View Dependent Claims (13, 14, 15, 16)
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17. A method of controlling an inductive charging system comprising:
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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; and if the combined power requests exceed the power capacity, then (a) developing a charging profile for each secondary device and (b) activating and deactivating the secondary devices in accordance with the charging profiles. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification