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Non-contact type power receiver and non-contact type battery

  • US 9,882,412 B2
  • Filed: 05/28/2015
  • Issued: 01/30/2018
  • Est. Priority Date: 09/11/2014
  • Status: Active Grant
First Claim
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1. A non-contact type power receiver comprising:

  • a plurality of power receiving coils receiving power in a non-contact manner;

    a plurality of rectifying units switching to rectify the power received from the plurality of power receiving coils; and

    a control unit controlling the switching by the plurality of rectifying units to control respective levels of the power rectified by the plurality of rectifying units,wherein each of the plurality of rectifying units has a full bridge structure including first and second switches forming one leg and third and fourth switches forming the other leg connected to the one leg in parallel, andwherein the control unit compares a carrier signal having a frequency higher than a transmission frequency of the power transmitted to the plurality of power receiving coils with a current reference signal of the received power, and controls the switching of the first and second switches using a pulse width modulation (PWM) scheme, depending on a comparison result.

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