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System and method for efficient data communication and wireless power transfer coexistence

  • US 9,613,747 B2
  • Filed: 08/26/2013
  • Issued: 04/04/2017
  • Est. Priority Date: 08/26/2013
  • Status: Expired due to Fees
First Claim
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1. A receiver for receiving power wirelessly, comprising:

  • an antenna configured to receive power wirelessly from a transmitter;

    a wireless power circuit configured to provide the power to a load and configured to operate according to a first frequency;

    a communication circuit configured to operate according to a second frequency; and

    a circuit coupled between the antenna and the wireless power circuit and coupled between the antenna and the communication circuit, the circuit comprising a first resonant network and a second resonant network, the circuit comprising a first path between the antenna and the wireless power circuit via the first resonant network and a second path between the antenna and the communication circuit via the second resonant network, the first resonant network comprising a first set of switches and the second resonant network comprising a second set of switches, the first path having a higher impedance than the second path at the second frequency when the first set of switches and the second set of switches are activated and having a lower impedance than the second path at the first frequency when the first set of switches and the second set of switches are deactivated.

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