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System and method for bidirectional wireless power transfer

  • US 9,748,774 B2
  • Filed: 03/14/2013
  • Issued: 08/29/2017
  • Est. Priority Date: 09/07/2012
  • Status: Active Grant
First Claim
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1. A remote device capable of receiving and transmitting wireless power, said remote device being separable from a wireless power supply, said remote device comprising:

  • a transceiver configured to generate electrical power in response to a field generated by the wireless power supply and to transfer wireless power in response to being driven;

    wireless power transceiver circuitry coupled to said transceiver, said wireless power transceiver circuitry being configurable between a receive mode and a transmit mode;

    wherein in said transmit mode, said wireless power transceiver circuitry is capable of driving said transceiver to transfer wireless power; and

    wherein in said receive mode, said wireless power transceiver circuitry is capable of rectifying said electrical power received in said transceiver from the wireless power supply, wherein said wireless power transceiver circuitry includes self-driven synchronous rectification circuitry.

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