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Power supply control in wireless power transfer systems

  • US 9,859,956 B2
  • Filed: 03/14/2013
  • Issued: 01/02/2018
  • Est. Priority Date: 08/24/2012
  • Status: Active Grant
First Claim
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1. An apparatus for wireless power transfer, the apparatus comprisinga direct current (DC) power source having an adjustable output voltage;

  • an inverter configured to convert the direct current to an alternating current;

    an LCL network having a first inductive element configured to receive the alternating current from the inverter and generate a magnetic field; and

    at least one controller configured to reduce at least one distortion signal in the alternating current while maintaining the alternating current in the first inductive element substantially constant by directly controlling at least the inverter.

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