Patents by Inventor John S. Sicko

John S. Sicko 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).

  • Method for providing adaptive control of variable speed AC motor drives
    Patent number: 4481457
    Abstract: A microprocessor based pulse-width modulated variable speed drive control system providing optimal switching angles based on minimizing r.m.s. current ripple. In addition, a closed loop double deadband control interacts with the optimal switching angles to insure close following of a desired function of a specified variable to be controlled.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: November 6, 1984
    Assignee: General Electric Company
    Inventors: Franz C. Zach, Bimal K. Bose, Paul M. Espelage, John S. Sicko
  • Optimal and adaptive control of variable speed AC motor drives
    Patent number: 4387421
    Abstract: A microprocessor based pulse-width modulated variable speed drive control system providing optimal switching angles based on minimizing r.m.s. current ripple. In addition, a closed loop double deadband control interacts with the optimal switching angles to insure close following of a desired function of a specified variable to be controlled.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: June 7, 1983
    Assignee: General Electric Company
    Inventors: Franz C. Zach, Bimal K. Bose, Paul M. Espelage, John S. Sicko
  • Microprocessor-based state of charge gauge for secondary batteries
    Patent number: 4333149
    Abstract: A state of charge gauge for measuring the state of charge of secondary batteries, such as the type employed in electric vehicles, includes a microprocessor which, when supplied with data varying in accordance with battery discharge current and battery terminal voltage, determines battery resistance. Having determined battery resistance which is a dynamically varying parameter dependent on battery temperature and age, the microprocessor computes the total battery charge capacity. Comparison of the quantity of battery charge already depleted with the previously computed total battery charge capacity yields an accurate indication of remaining battery charge.
    Type: Grant
    Filed: March 6, 1980
    Date of Patent: June 1, 1982
    Assignee: General Electric Company
    Inventors: Dale F. Taylor, John S. Sicko, William S. Passman