Patents by Inventor Christian Sartler

Christian Sartler 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).

  • Filter capacitor degradation identification using measured and expected voltage
    Patent number: 9389263
    Abstract: Methods and apparatus are presented for detecting degrading filter capacitors in motor drives or other power converters, in which an expected DC equivalent voltage and a measured DC equivalent voltage are computed according to sampled filter circuit currents and voltages, and compared to selectively identify filter capacitor degradation conditions in a power converter filter circuit.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: July 12, 2016
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Christian Sartler, Yogesh Patel, Lixiang Wei, Mark G. Phillips
  • FILTER CAPACITOR DEGRADATION IDENTIFICATION USING MEASURED AND EXPECTED VOLTAGE
    Publication number: 20150355259
    Abstract: Methods and apparatus are presented for detecting degrading filter capacitors in motor drives or other power converters, in which an expected DC equivalent voltage and a measured DC equivalent voltage are computed according to sampled filter circuit currents and voltages, and compared to selectively identify filter capacitor degradation conditions in a power converter filter circuit.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 10, 2015
    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
    Inventors: Christian Sartler, Yogesh Patel, Lixiang Wei, Mark G. Phillips