×

Method and apparatus for wireless power transmission with harmonic noise cancellation

  • US 10,312,735 B2
  • Filed: 09/05/2014
  • Issued: 06/04/2019
  • Est. Priority Date: 09/09/2013
  • Status: Expired
First Claim
Patent Images

1. A wireless power transmission apparatus comprising:

  • a source resonator configured to transmit an output power to a wireless power reception apparatus by resonating with a target resonator of the wireless power reception apparatus, wherein the transmitted output power has a predetermined frequency band; and

    a resonant power generator comprising first and second notch filters coupled to a low-pass filter (LPF),wherein the first and second notch filters are configured to cancel a third harmonic component of the output power, and the LPF is configured to cancel a fifth or higher odd-order harmonic component of the output power,wherein the resonant power generator is configured to differentially input a first input signal and a second input signal to the source resonator, and cancel an even-order harmonic component of the output power, andwherein the source resonator is further configured to transmit the output power from which the third harmonic component and the fifth or higher odd-order harmonic component have been cancelled to the wireless power reception apparatus.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×