Patents by Inventor Yevgeniy A. Tkachenko

Yevgeniy A. Tkachenko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Integrated Power Supply And Modulator For Radio Frequency Power Amplifiers
    Publication number: 20150155895
    Abstract: An integrated power supply and modulator system includes three subsystems: a magnetic regulation stage, a switched-capacitor voltage balancer stage, and at least one output switching stage. In one embodiment, the integrated power supply and modulator system further includes startup circuitry, feedback/feedforward circuitry, and control circuitry.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 4, 2015
    Inventors: David J. Perreault, Wei Li, Yevgeniy A. Tkachenko, Joel L. Dawson
  • Integrated Power Supply And Modulator For Radio Frequency Power Amplifiers
    Publication number: 20150084701
    Abstract: An integrated power supply and modulator system includes integrated power supply and modulator system includes three subsystems: a switched-capacitor voltage balancer stage; a magnetic regulation stage; and at least one output switching stage. In one embodiment, the integrated power supply and modulator system further includes startup circuitry, feedback/feedforward circuitry and control circuitry.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 26, 2015
    Applicant: Eta Devices, Inc.
    Inventors: David J. Perreault, Wei Li, Yevgeniy A. Tkachenko
  • APPARATUS AND METHODS FOR ENVELOPE TRACKING IN RADIO FREQUENCY SYSTEMS
    Publication number: 20140213204
    Abstract: Apparatus and methods for envelope tracking are disclosed. In one embodiment, a power amplifier system including a power amplifier and an envelope tracker is provided. The power amplifier is configured to amplify a radio frequency (RF) signal, and the envelope tracker is configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The envelope tracker includes a buck converter for generating a buck voltage from a battery voltage and a digital-to-analog conversion (DAC) module for adjusting the buck voltage based on the envelope of the RF signal to generate the supply voltage for the power amplifier.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventors: Florinel G. Balteanu, Sabah Khesbak, Yevgeniy A. Tkachenko, David Steven Ripley, Robert John Thompson
  • Apparatus and methods for envelope tracking
    Patent number: 8718188
    Abstract: Apparatus and methods for envelope tracking are disclosed. In one embodiment, a power amplifier system including a power amplifier and an envelope tracker is provided. The power amplifier is configured to amplify a radio frequency (RF) signal, and the envelope tracker is configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The envelope tracker includes a buck converter for generating a buck voltage from a battery voltage and a digital-to-analog conversion (DAC) module for adjusting the buck voltage based on the envelope of the RF signal to generate the supply voltage for the power amplifier.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: May 6, 2014
    Assignee: Skyworks Solutions, Inc.
    Inventors: Florinel G. Balteanu, Sabah Khesbak, Yevgeniy A. Tkachenko, David Steven Ripley, Robert John Thompson
  • APPARATUS AND METHODS FOR ENVELOPE TRACKING
    Publication number: 20120269240
    Abstract: Apparatus and methods for envelope tracking are disclosed. In one embodiment, a power amplifier system including a power amplifier and an envelope tracker is provided. The power amplifier is configured to amplify a radio frequency (RF) signal, and the envelope tracker is configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The envelope tracker includes a buck converter for generating a buck voltage from a battery voltage and a digital-to-analog conversion (DAC) module for adjusting the buck voltage based on the envelope of the RF signal to generate the supply voltage for the power amplifier.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: SKYWORKS SOLUTIONS, INC.
    Inventors: Florinel G. Balteanu, Sabah Khesbak, Yevgeniy A. Tkachenko, David Steven Ripley, Robert John Thompson