Patents by Inventor Homer Alan Mantooth

Homer Alan Mantooth 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).

  • PWM-controlled three level stacked structure LLC resonant converter and method of controlling same
    Patent number: 11855529
    Abstract: The invention discloses a novel control scheme/strategy for the stacked structure LLC resonant converter. The control scheme includes a control signal as a gating signal of the fourth switch, and gating signals of the first, second and third switches that are operably generated according to the gating signal of the fourth switch. The gating signals of the second switch has a same duty ratio as and a phase shift of 180 degrees from the gating signal of the fourth switch. The gate signals of the first and third switches are complementary with the gate signals of the second and fourth switches, respectively. By adopting the control strategy, a three level LLC resonant network input voltage is generated, which includes Vin, Vin/2 and 0.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: December 26, 2023
    Assignee: BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS
    Inventors: Homer Alan Mantooth, Yuqi Wei
  • Smart green power node
    Patent number: 11693376
    Abstract: The present invention is directed to an improved smart green power node using predictive switching, predictive operation at a daily and hourly level, and both grid connected and island operating modes with built-in cybersecurity.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: July 4, 2023
    Inventors: Homer Alan Mantooth, Yuzhi Zhang, Janviere Umuhoza, Shuang Zhao, Stephen Joe Moquin, Roger A. Dougal
  • PWM-CONTROLLED THREE LEVEL STACKED STRUCTURE LLC RESONANT CONVERTER AND METHOD OF CONTROLLING SAME
    Publication number: 20220085728
    Abstract: The invention discloses a novel control scheme/strategy for the stacked structure LLC resonant converter. The control scheme includes a control signal as a gating signal of the fourth switch, and gating signals of the first, second and third switches that are operably generated according to the gating signal of the fourth switch. The gating signals of the second switch has a same duty ratio as and a phase shift of 180 degrees from the gating signal of the fourth switch. The gate signals of the first and third switches are complementary with the gate signals of the second and fourth switches, respectively. By adopting the control strategy, a three level LLC resonant network input voltage is generated, which includes Vin, Vin/2 and 0.
    Type: Application
    Filed: September 13, 2021
    Publication date: March 17, 2022
    Inventors: Homer Alan Mantooth, Yuqi Wei