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METHOD FOR CONTROL IN WIRELESS POWER TRANSFER SYSTEMS

  • US 20170250573A1
  • Filed: 07/15/2015
  • Published: 08/31/2017
  • Est. Priority Date: 07/15/2014
  • Status: Active Grant
First Claim
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1. A transmitting device of a wireless power transfer system for transmitting a power to a spatially separated receiving device, the transmitting device comprising:

  • a transmitting inductor;

    a inverter is configured to drive a current to the transmitting inductor, the current is an AC output inverted from an DC input by using a plurality of switches; and

    a controller is configured to control the plurality of switches to be switched complementarily;

    wherein the controller controls the plurality of switches to be switched in a constant frequency, and regulates an amplitude of the current by varying a difference of duty cycles between the switches being complementarily switched.

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