Patents by Inventor Chamika Mihiranga Liyanagedera

Chamika Mihiranga Liyanagedera 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).

  • Publication number: 20230030682
    Abstract: System and methods for high accuracy, non-intrusive current sensing are provided. A system may include two magnetic field sensors configured for differential sensing. The system may further include frontend circuitry configured to remove direct current (DC) offset of the magnetic field sensors, upconvert the outputs of the magnetic field sensors, and filter out at least one frequency component from the up-converted signals. The system may receive output signals from the front-end circuitry corresponding to each sensor. The system may further calculate a differential signal based on the output signals. The system may apply optimal detection based on the differential signal and a reference signal to calculate a measurement of current flow. The system may determine a phase angle measurement between the differential signal and the reference signal to calculate a direction of the current flow in the conductor and output various measurement information related to the detected current.
    Type: Application
    Filed: November 24, 2020
    Publication date: February 2, 2023
    Applicant: Purdue Research Foundation
    Inventors: Kaushik Roy, Byunghoo Jung, Chamika Mihiranga Liyanagedera