Patents by Inventor Vaughn E. Lietzke

Vaughn E. Lietzke 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).

  • Motor control system having common-mode voltage compensation
    Patent number: 9263982
    Abstract: A motor control system is provided, and includes a motor, at least one differential amplifier configured to monitor phase current applied to the motor, and a current compensation controller. The current compensation controller is in communication with the at least one differential amplifier, and is configured to periodically determine a common-mode voltage of the at least one differential amplifier. The current compensation controller is also configured to determine a corrected phase current value based on the common mode voltage.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 16, 2016
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Abraham G. Gebregergis, Ramakrishnan RajaVenkitasubramony, Tomy Sebastian, Santhosh J. Veigas, Vaughn E. Lietzke
  • MOTOR CONTROL SYSTEM HAVING COMMON-MODE VOLTAGE COMPENSATION
    Publication number: 20140265986
    Abstract: A motor control system is provided, and includes a motor, at least one differential amplifier configured to monitor phase current applied to the motor, and a current compensation controller. The current compensation controller is in communication with the at least one differential amplifier, and is configured to periodically determine a common-mode voltage of the at least one differential amplifier. The current compensation controller is also configured to determine a corrected phase current value based on the common mode voltage.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION
    Inventors: Abraham G. Gebregergis, Ramakrishnan RajaVenkitasubramony, Tomy Sebastian, Santhosh J. Veigas, Vaughn E. Lietzke