Transmitters for wireless power transmission

  • US 10,103,582 B2
  • Filed: 05/10/2013
  • Issued: 10/16/2018
  • Est. Priority Date: 07/06/2012
  • Status: Active Grant
  • ×
    • Pin Icon | RPX Insight
    • Pin
First Claim
Patent Images

1. A transmitter for wireless power transmission, comprising:

  • a plurality of antennas configured to transmit a plurality of radio frequency (RF) power waves including first power waves and second power waves;

    a first radio frequency integrated circuit (RFIC) that is communicatively coupled to a first subset of two or more antennas of the plurality of antennas, wherein the first RFIC is configured to;

    generate the first power waves via the first subset of two or more antennas using a first RF oscillator and a first RF amplifier on the first RFIC, andcontrol transmission of the first power waves by causing the first subset of two or more antennas of the plurality of antennas to transmit the first power waves with a first amplitude, a first phase and a first frequency;

    a second RFIC that is communicatively coupled to a second subset of two or more antennas of the plurality of antennas, distinct from the first subset of two or more antennas of the plurality of antennas, wherein the second RFIC is distinct from the first RFIC and is configured to;

    generate the second power waves via the second subset of two or more antennas using a second RF oscillator and a second RF amplifier on the second RFIC, andcontrol transmission of the second power waves by causing the second subset of two or more antennas of the plurality of antennas to transmit the second power waves with a second phase, a second amplitude and a second frequency that are adjusted with respect to the first phase, the first amplitude and the first frequency; and

    a microcontroller, distinct and separate from the first and second RFICs, communicatively coupled to the first RFIC and the second RFIC, wherein the microcontroller is configured to manage operation of the first RFIC and the second RFIC such that the plurality of power waves form multichannel constructive interference patterns at a first location having a receiver and a destructive interference pattern at a second location without the receiver, while transmitting from at least one of the plurality of antennas.

View all claims