System and method that provides efficiency and flexiblity in inductive charging

  • US 9,276,437 B2
  • Filed: 01/28/2015
  • Issued: 03/01/2016
  • Est. Priority Date: 01/31/2006
  • Status: Active Grant
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First Claim
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1. A system for improved efficiency and flexibility in inductive charging, comprising:

  • a base unit having one or more primary coils, wherein each primary coil is configured so that when a current is passed through it, a magnetic field is generated in a direction substantially perpendicular to the plane of the primary coil;

    one or more secondary coils or receivers associated with one or more mobile device; and

    one or more components within the base unit and/or the mobile device, for improving efficiency and/or flexibility in inductive charging,wherein when the one or more mobile device is placed in proximity to the base unit, the perpendicular magnetic field is used to inductively generate a current in the one or more secondary coils or receivers associated therewith, to charge or power the device, andfurther wherein the base unit and/or mobile device periodically verify or handshake the presence of a mobile device proximate the base unit, and thereafter control the operation of the primary coils as appropriate.

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