Patents by Inventor Darwin Drake Smith

Darwin Drake Smith 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).

  • Methods and systems for calibrating a resonant converter
    Patent number: 9548670
    Abstract: Methods and systems for calibrating an inductor-inductor-capacitor (LLC) resonant converter are provided herein. The method includes calculating input voltage mathematically as a function of at least one of an output voltage, a load current, and tolerances of components of the LLC resonant converter and operating the LLC resonant converter in an open loop mode at a nominal resonant frequency. The method also includes measuring output voltage of the LLC resonant converter and comparing the measured output voltage to the calculated input voltage.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 17, 2017
    Assignee: General Electric Company
    Inventors: Raghothama Reddy, Darwin Drake Smith
  • Systems and methods for power interruption
    Patent number: 9438027
    Abstract: A power interruption circuit for use in a power distribution module is provided. The power interruption circuit is configured to provide power to a load and includes a shunt resistor, a plurality of switches, and microprocessor. The microprocessor is configured to determine a digitized value of a current flowing through the shunt resistor, determine a digitized value of an output voltage of the power interruption circuit, calculate, from the digitized current value and the digitized output voltage value, a power provided by the power interruption circuit to the load, compare the calculated power to a threshold power level, and control the plurality of switches based on the comparison.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 6, 2016
    Assignee: General Electric Company
    Inventors: Gary Jay Turner, Darwin Drake Smith, Tab O. Walter
  • METHODS AND SYSTEMS FOR CALIBRATING A RESONANT CONVERTER
    Publication number: 20140268904
    Abstract: Methods and systems for calibrating an inductor-inductor-capacitor (LLC) resonant converter are provided herein. The method includes calculating input voltage mathematically as a function of at least one of an output voltage, a load current, and tolerances of components of the LLC resonant converter and operating the LLC resonant converter in an open loop mode at a nominal resonant frequency. The method also includes measuring output voltage of the LLC resonant converter and comparing the measured output voltage to the calculated input voltage.
    Type: Application
    Filed: February 25, 2014
    Publication date: September 18, 2014
    Applicant: General Electric Company
    Inventors: RAGHOTHAMA REDDY, Darwin Drake Smith
  • SYSTEMS AND METHODS FOR POWER INTERRUPTION
    Publication number: 20140268454
    Abstract: A power interruption circuit for use in a power distribution module is provided. The power interruption circuit is configured to provide power to a load and includes a shunt resistor, a plurality of switches, and microprocessor. The microprocessor is configured to determine a digitized value of a current flowing through the shunt resistor, determine a digitized value of an output voltage of the power interruption circuit, calculate, from the digitized current value and the digitized output voltage value, a power provided by the power interruption circuit to the load, compare the calculated power to a threshold power level, and control the plurality of switches based on the comparison.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Gary Jay Turner, Darwin Drake Smith, Tab O. Walter