Patents by Inventor Simon Zossak

Simon Zossak 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).

  • Technique for on-the-fly start-up of a permanent magnet AC motor without a speed or position sensor
    Patent number: 11575336
    Abstract: A method and apparatus are provided for controlling a sensorless multi-phase permanent magnet (PM) motor by sensing induced motor terminal voltages from the PM motor while the rotor is spinning, generating an input voltage vector signal from the plurality of induced motor terminal voltages, projecting the input voltage vector signal to a transformed voltage vector signal which does not include DC-offset components by using a Clarke transformation without a zero component that is applied to the input voltage vector signal, and estimating an initial rotor position of the rotor from the transformed voltage vector signal, wherein said sensing, projecting, and estimating are performed while a power converter for the sensorless multi-phase PM motor is disabled.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 7, 2023
    Assignee: NXP USA, Inc.
    Inventors: Matej Pacha, Simon Zossak, Lukas Gorel
  • Technique for On-The-Fly Start-Up of a Permanent Magnet AC Motor Without a Speed or Position Sensor
    Publication number: 20200382035
    Abstract: A method and apparatus are provided for controlling a sensorless multi-phase permanent magnet (PM) motor by sensing induced motor terminal voltages from the PM motor while the rotor is spinning, generating an input voltage vector signal from the plurality of induced motor terminal voltages, projecting the input voltage vector signal to a transformed voltage vector signal which does not include DC-offset components by using a Clarke transformation without a zero component that is applied to the input voltage vector signal, and estimating an initial rotor position of the rotor from the transformed voltage vector signal, wherein said sensing, projecting, and estimating are performed while a power converter for the sensorless multi-phase PM motor is disabled.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 3, 2020
    Applicant: NXP USA, Inc.
    Inventors: Matej Pacha, Simon Zossak, Lukas Gorel