Patents by Inventor Igor B. Parkman

Igor B. Parkman 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).

  • Circuitry and shunt arrangements for temperature-compensated measurements of current
    Patent number: 9772356
    Abstract: Shunt arrangements and current measuring circuits are provided for temperature compensated current measurements as well as current measurements that are compensated for changes in the characteristics of the shunt material as a result of manufacturing tolerances. The current measuring circuits may include a temperature sensing element in a negative feedback path of an operational amplifier for providing temperature compensation. The shunt arrangements may include a calibration shunt formed in the same material as a main shunt and circuitry for measuring the temperature drift error of the calibration shunt and applying that error to compensate for temperature drift of the main shunt.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: September 26, 2017
    Assignee: Astronics Advanced Electronic Systems Corp.
    Inventor: Igor B. Parkman
  • Temperature-Compensated Current Sensing and Shunt Arrangements
    Publication number: 20170059632
    Abstract: Shunt arrangements and current measuring circuits are provided for temperature compensated current measurements as well as current measurements that are compensated for changes in the characteristics of the shunt material as a result of manufacturing tolerances. The current measuring circuits may include a temperature sensing element in a negative feedback path of an operational amplifier for providing temperature compensation. The shunt arrangements may include a calibration shunt formed in the same material as a main shunt and circuitry for measuring the temperature drift error of the calibration shunt and applying that error to compensate for temperature drift of the main shunt.
    Type: Application
    Filed: September 1, 2015
    Publication date: March 2, 2017
    Applicant: Astronics Advanced Electronic Systems Corp.
    Inventor: Igor B. Parkman