Patents by Inventor Aditya N. Ghule

Aditya N. Ghule 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).

  • Sensorless controller for electrostatic machine
    Patent number: 11012003
    Abstract: A variable speed drive for an electrostatic motor provides feedback control according to rotor position and/or rotor rotational rate deduced from back currents (back-MMF). Extraction of the back currents is performed by a modeling of the stator and the development of isolated stator voltages from plate voltage measurements.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: May 18, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Daniel Colin Ludois, Aditya N. Ghule, Peter Killeen
  • Sensorless Controller for Electrostatic Machine
    Publication number: 20210075343
    Abstract: A variable speed drive for an electrostatic motor provides feedback control according to rotor position and/or rotor rotational rate deduced from back currents (back-MMF). Extraction of the back currents is performed by a modeling of the stator and the development of isolated stator voltages from plate voltage measurements.
    Type: Application
    Filed: September 10, 2019
    Publication date: March 11, 2021
    Inventors: Daniel Colin Ludois, Aditya N. Ghule, Peter Killeen
  • Variable frequency electrostatic drive
    Patent number: 9979323
    Abstract: A variable speed drive for an electrostatic motor provides feedback control by conversion of measured current phases provided to the motor into a vector in a rotating rotor framework. This vector is used for evaluating corrective voltages and then reconverted to a non-rotating framework for application to the motor electrodes. Current-source drive circuits provide current stabilized outputs making such sophisticated control tractable.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 22, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Aditya N. Ghule, Baoyun Ge, Daniel Colin Ludois
  • Variable frequency electrostatic drive
    Patent number: 9960719
    Abstract: A variable speed drive for an electrostatic motor provides feedback control by conversion of measured current phases provided to the motor into a vector in a rotating rotor framework. This vector is used for evaluating corrective voltages and then reconverted to a non-rotating framework for application to the motor electrodes. Current-source drive circuits provide current stabilized outputs making such sophisticated control tractable.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 1, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Aditya N. Ghule, Baoyun Ge, Daniel Colin Ludois