Patents by Inventor Bretislav SEVCIK

Bretislav SEVCIK 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).

  • Impedance matching element for voltage and/or current sensing devices
    Patent number: 9859865
    Abstract: An impedance matching element is disclosed which can be used for voltage and/or current sensing or indicating devices used in medium voltage systems in order to improve signal integrity of output signals in comparison with known sensing devices. To enhance sensing accuracy and provide higher output signal immunity against interferences and impedance mismatches, the electric field sensor and/or the magnetic field sensor can be connected to the impedance matching element which allows connection to an independent analog measuring device and is powered from an energy harvester, with an impedance matching electronic board.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: January 2, 2018
    Assignee: ABB Schweiz AG
    Inventors: Bretislav Sevcik, Petr Velesik, Radek Javora
  • IMPEDANCE MATCHING ELEMENT FOR VOLTAGE AND/OR CURRENT SENSING DEVICES
    Publication number: 20150333725
    Abstract: An impedance matching element is disclosed which can be used for voltage and/or current sensing or indicating devices used in medium voltage systems in order to improve signal integrity of output signals in comparison with known sensing devices. To enhance sensing accuracy and provide higher output signal immunity against interferences and impedance mismatches, the electric field sensor and/or the magnetic field sensor can be connected to the impedance matching element which allows connection to an independent analogue measuring device and is powered from an energy harvester, with an impedance matching electronic board.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 19, 2015
    Applicant: ABB TECHNOLOGY AG
    Inventors: Bretislav SEVCIK, Petr VELESIK, Radek JAVORA