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Power transmitter and power receiver for an inductive power system

  • US 10,320,244 B2
  • Filed: 10/04/2011
  • Issued: 06/11/2019
  • Est. Priority Date: 10/13/2010
  • Status: Active Grant
First Claim
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1. A power transmitter for transmitting power inductively to a power receiver via a transmitter coil, the power transmitter comprising:

  • a sensing and demodulating unit configured to receive first data and second data from the power receiver via the transmitter coil, said first data indicating a modulation requirement, and said second data including an inquiry message that indicates whether a response message is required from the power transmitter, wherein the second data further indicates a format of the response message or a time requirement for transmitting the response message; and

    a modulating and transmitting unit configured to transmit the response message to the power receiver via the transmitter coil when the response message is required according to the second data, said modulating and transmitting unit generating a power signal according to said modulation requirement when transmitting the response message, wherein the response message is modulated on the power signal.

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