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WIRELESS INDUCTIVE POWER TRANSFER

  • US 20150303995A1
  • Filed: 11/26/2013
  • Published: 10/22/2015
  • Est. Priority Date: 11/29/2012
  • Status: Active Grant
First Claim
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1. A power transmitter for transferring power to a power receiver using a wireless inductive power signal, the power transmitter comprising:

  • an inductor for providing the power signal;

    a power signal generator for driving the inductor to provide the power signal;

    a receiver for receiving data messages from the power receiver, the data messages being communicated by load modulation of the power signal;

    a power loop controller arranged to control a power of the power signal in response to power control error messages received from the power receiver;

    a query message processor for detecting that a query message has been received from the power receiver; and

    a modification processor for modifying during a power transfer phase a response of the power loop controller to power control error messages in response to the query message.

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