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Inductively powered mobile sensor system

  • US 9,680,338 B2
  • Filed: 03/05/2015
  • Issued: 06/13/2017
  • Est. Priority Date: 09/16/2004
  • Status: Active Grant
First Claim
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1. An inductive power transfer system, the system comprising:

  • a primary circuit comprising a conductive path capable of being energized to generate an electromagnetic field, and a first controller for controlling the generation of the field; and

    an inductive power pick-up circuit comprising at least one pick-up coil capable of receiving power from the field to supply a device and a second controller for controlling the pick-up circuit, the second controller comprising a communications unit operable to communicate to the primary circuit information on power available to the pick-up circuit and sensed power required by the device,wherein the first controller is operable to control the field in accordance with the communicated power information to match the power available to the sensed power required.

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