Patents by Inventor James Leake

James Leake 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).

  • Thermally coupled current limiter
    Patent number: 9035701
    Abstract: This disclosure relates generally to radio frequency (RF) amplification devices and methods of limiting an RF signal current. Embodiments of the RF amplification device include an RF amplification circuit and a feedback circuit. The RF amplification circuit is configured to amplify an RF input signal so as to generate an amplified RF signal that provides an RF signal current with a current magnitude. The feedback circuit is used to limit the RF signal current. In particular, a thermal sense element in the feedback circuit is configured to generate a sense current, and thermal conduction from the RF amplification circuit sets a sense current level of the sense current as being indicative of the current magnitude of the RF signal current. To limit the RF signal current, the feedback circuit decreases the current magnitude of the RF signal current in response to the sense current level reaching a trigger current level.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: May 19, 2015
    Assignee: RF Micro Devices, Inc.
    Inventors: Derek Schooley, Robert Bennett, James Leake, Pradeep Silva
  • THERMALLY COUPLED CURRENT LIMITER
    Publication number: 20130049871
    Abstract: This disclosure relates generally to radio frequency (RF) amplification devices and methods of limiting an RF signal current. Embodiments of the RF amplification device include an RF amplification circuit and a feedback circuit. The RF amplification circuit is configured to amplify an RF input signal so as to generate an amplified RF signal that provides an RF signal current with a current magnitude. The feedback circuit is used to limit the RF signal current. In particular, a thermal sense element in the feedback circuit is configured to generate a sense current, and thermal conduction from the RF amplification circuit sets a sense current level of the sense current as being indicative of the current magnitude of the RF signal current. To limit the RF signal current, the feedback circuit decreases the current magnitude of the RF signal current in response to the sense current level reaching a trigger current level.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Derek Schooley, Robert Bennett, James Leake, Pradeep Silva