Patents by Inventor Olsen A. Rodrigues

Olsen A. Rodrigues 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).

  • Method and system for monitoring electrical isolation
    Patent number: 10371735
    Abstract: A first voltage sensor measures a primary voltage between a first terminal of a tested device and electrical ground when a first switch and a second switch are in various on states or off states. In a test state either the first switch or the second switch is in an on state and in reference state both the first switch and the second switch are in on states. An observed leakage resistance is estimated based on the measured primary and secondary voltages of the test state. A reference leakage resistance is based on the measured primary and secondary voltages of the reference state. A test circuit has failed if the observed leakage resistance differs from the reference leakage resistance by more than a threshold amount.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: August 6, 2019
    Assignee: DEERE & COMPANY
    Inventors: Olsen A. Rodrigues, Neal D. Clements, Kent D. Wanner
  • METHOD AND SYSTEM FOR MONITORING ELECTRICAL ISOLATION
    Publication number: 20170138995
    Abstract: A first voltage sensor measures a primary voltage between a first terminal of a tested device and electrical ground when a first switch and a second switch are in various on states or off states. In a test state either the first switch or the second switch is in an on state and in reference state both the first switch and the second switch are in on states. An observed leakage resistance is estimated based on the measured primary and secondary voltages of the test state. A reference leakage resistance is based on the measured primary and secondary voltages of the reference state. A test circuit has failed if the observed leakage resistance differs from the reference leakage resistance by more than a threshold amount.
    Type: Application
    Filed: November 16, 2015
    Publication date: May 18, 2017
    Inventors: Olsen A. Rodrigues, Neal D. Clements, Kent D. Wanner