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Wireless charging system with device power compliance

  • US 9,190,858 B2
  • Filed: 12/20/2012
  • Issued: 11/17/2015
  • Est. Priority Date: 01/06/2009
  • Status: Active Grant
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 an inductive primary power supply, each of the plurality of inductive secondary devices including a power management unit;

    determining the combined power requests of the secondary devices as a function of information from the plurality of inductive secondary device power management units regarding anticipated power requirements of the plurality of inductive 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.

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