Patents by Inventor Adrian HOZOI

Adrian HOZOI 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).

  • Patent number: 10161972
    Abstract: A voltage and or current sensor device for use in medium- or high voltage application, wherein a sensor or sensors of the sensor device is or are arranged in a housing. To enhance communication between the sensor and an electronical device, in order to use maximum possible accuracy potential of the voltage and current sensors, a signal and/or data memory element is integrated in the sensor housing, or placed near the sensor such that the sensor device output signal can be directly evaluated.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: December 25, 2018
    Assignee: ABB Schweiz AG
    Inventors: Radek Javora, Marek Pavlas, Adrian Hozoi, Jaromir Podzemny
  • Patent number: 9645174
    Abstract: A resistive voltage divider includes a first resistor and a second resistor electrically connected in series. Each of the resistors is made of an electrically resistive film material and applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between one hundred and one million, where two ends of the trace of the second resistor overlap at least in part with a first and a second) contacting terminal, respectively, and two ends of the trace of the first resistor overlap at least in part with the first and third contacting terminal, respectively. In order to decrease the parasitic capacitance between the first contacting terminal and the third contacting terminal, the second contacting terminal is placed with at least a screening part between the first and the third contacting terminals.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: May 9, 2017
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkötter
  • Patent number: 9646748
    Abstract: A resistive voltage divider includes first and second resistors, which are electrically connected in series and are made of a resistive film material which is applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between ten and one million. To improve the accuracy of the voltage divider, the first and second resistors are made of the same resistive film material, have a trace length above a corresponding specific trace length, and have approximately the same trace width.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: May 9, 2017
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkötter
  • Patent number: 9583242
    Abstract: A resistive voltage divider includes at least a first and a second resistor electrically connected in series. The resistors are made of an electrically resistive film material and each resistor is applied as a trace onto an insulating substrate. The divider's voltage ratio has a value between one hundred and one million. In order to achieve these high voltage ratios, a third resistor is electrically connected in parallel with the second resistor. The trace of the second and of the third resistor each overlap on one end at least in part with a first contacting terminal and on the respective other end at least in part with a second contacting terminal. A compact size of the divider is maintained by arranging the first and second contacting terminals in an interdigitated manner.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 28, 2017
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkotter
  • Publication number: 20160093423
    Abstract: A resistive voltage divider includes at least a first and a second resistor electrically connected in series. The resistors are made of an electrically resistive film material and each resistor is applied as a trace onto an insulating substrate. The divider's voltage ratio has a value between one hundred and one million. In order to achieve these high voltage ratios, a third resistor is electrically connected in parallel with the second resistor. The trace of the second and of the third resistor each overlap on one end at least in part with a first contacting terminal and on the respective other end at least in part with a second contacting terminal. A compact size of the divider is maintained by arranging the first and second contacting terminals in an interdigitated manner.
    Type: Application
    Filed: December 8, 2015
    Publication date: March 31, 2016
    Applicant: ABB AG
    Inventors: Adrian HOZOI, Rolf DISSELNKOTTER
  • Patent number: 9299484
    Abstract: A resistive structure has an improved electric field profile deposited on the surface of a cylindrical insulating substrate. At least one resistive path or trace is provided with a helix-looking shape and is directly printed on the surface of the insulating substrate. A resistive voltage divider includes first and second resistors electrically connected in series, where each resistor is made of one or more traces of electrically resistive film material applied onto a cylindrical insulating substrate. At least one of the traces is shaped like a helix and is applied onto the substrate by direct printing.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: March 29, 2016
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkötter, Marek Pavlas
  • Publication number: 20150192619
    Abstract: A voltage and or current sensor device for use in medium- or high voltage application, wherein a sensor or sensors of the sensor device is or are arranged in a housing. To enhance communication between the sensor and an electronical device, in order to use maximum possible accuracy potential of the voltage and current sensors, a signal and/or data memory element is integrated in the sensor housing, or placed near the sensor such that the sensor device output signal can be directly evaluated.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 9, 2015
    Applicant: ABB TECHNOLOGY AG
    Inventors: Radek JAVORA, Marek PAVLAS, Adrian HOZOI, Jaromir PODZEMNY
  • Publication number: 20140159744
    Abstract: An exemplary electrical device for measuring alternating current or current pulses includes at least one coil of electrically conductive wire being wound around a non-magnetic carrier, where the non-magnetic carrier is made of glass.
    Type: Application
    Filed: January 16, 2014
    Publication date: June 12, 2014
    Applicant: ABB Technology AG
    Inventors: Adrian HOZOI, Rolf Disselnkötter
  • Patent number: 8698485
    Abstract: An exemplary current sensor operating in accordance with the principle of compensation includes a primary winding creating a magnetic field based on a current to be measured, a secondary winding generating a magnetic field compensating the primary winding based on a compensation current. The current sensor also includes a magnetic core, a terminating resistor connected in series to the secondary winding, and sensor means. A booster circuit is connected downstream of the sensor means and feeds the compensation current to the secondary winding via the terminating resistor. The booster circuit includes a switched mode amplifier with a pulse width and density modulator that operates based on pulse width and density modulation, turning the compensation current into a pulse width and density modulated current. The switched mode amplifier having a switching frequency that is high at when the compensation current is small and low when the compensation current is high.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: April 15, 2014
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkötter
  • Publication number: 20130342187
    Abstract: A resistive voltage divider includes a first resistor and a second resistor electrically connected in series. Each of the resistors is made of an electrically resistive film material and applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between one hundred and one million, where two ends of the trace of the second resistor overlap at least in part with a first and a second) contacting terminal, respectively, and two ends of the trace of the first resistor overlap at least in part with the first and third contacting terminal, respectively. In order to decrease the parasitic capacitance between the first contacting terminal and the third contacting terminal, the second contacting terminal is placed with at least a screening part between the first and the third contacting terminals.
    Type: Application
    Filed: August 26, 2013
    Publication date: December 26, 2013
    Applicant: ABB AG
    Inventors: Adrian HOZOI, Rolf DISSELNKÖTTER
  • Publication number: 20130342227
    Abstract: A resistive structure has an improved electric field profile deposited on the surface of a cylindrical insulating substrate. At least one resistive path or trace is provided with a helix-looking shape and is directly printed on the surface of the insulating substrate. A resistive voltage divider includes first and second resistors electrically connected in series, where each resistor is made of one or more traces of electrically resistive film material applied onto a cylindrical insulating substrate. At least one of the traces is shaped like a helix and is applied onto the substrate by direct printing.
    Type: Application
    Filed: August 26, 2013
    Publication date: December 26, 2013
    Applicant: ABB AG
    Inventors: Adrian HOZOI, Rolf DISSELNKÖTTER, Marek PAVLAS
  • Publication number: 20130346004
    Abstract: A phase-locked loop is provided for estimating a phase angle of a three-phase reference signal. The phase-locked loop includes a device for calculating an estimated first state and an estimated second state at a fundamental frequency on the basis of the reference signal and the estimated fundamental frequency, a device for calculating a fundamental positive sequence component of the reference signal on the basis of the first state and the second state, a device for calculating a direct component and a quadrature component in a reference frame synchronous with the phase angle on the basis of the fundamental positive sequence component and an estimated phase angle, and a device for determining estimates of the estimated fundamental frequency and the estimated phase angle on the basis of the quadrature component.
    Type: Application
    Filed: August 26, 2013
    Publication date: December 26, 2013
    Applicant: ABB AG
    Inventors: Adrian HOZOI, Rolf DISSELNKÕTTER
  • Publication number: 20130335106
    Abstract: A resistive voltage divider includes first and second resistors, which are electrically connected in series and are made of a resistive film material which is applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between ten and one million. To improve the accuracy of the voltage divider, the first and second resistors are made of the same resistive film material, have a trace length above a corresponding specific trace length, and have approximately the same trace width.
    Type: Application
    Filed: August 23, 2013
    Publication date: December 19, 2013
    Applicant: ABB AG
    Inventors: Adrian HOZOI, Rolf Disselnkötter
  • Publication number: 20120268108
    Abstract: An exemplary current sensor operating in accordance with the principle of compensation includes a primary winding creating a magnetic field based on a current to be measured, a secondary winding generating a magnetic field compensating the primary winding based on a compensation current. The current sensor also includes a magnetic core, a terminating resistor connected in series to the secondary winding, and sensor means. A booster circuit is connected downstream of the sensor means and feeds the compensation current to the secondary winding via the terminating resistor. The booster circuit includes a switched mode amplifier with a pulse width and density modulator that operates based on pulse width and density modulation, turning the compensation current into a pulse width and density modulated current. The switched mode amplifier having a switching frequency that is high at when the compensation current is small and low when the compensation current is high.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: ABB AG
    Inventors: Adrian HOZOI, Rolf Disselnkötter
  • Publication number: 20120268114
    Abstract: A current sensor is disclosed, with a ring-shaped magnetic core, the core enclosing the primary conductor with the current to be measured, the core having an air-gap containing a sensor element for measuring the magnetic core induction, whereby the cross-sectional area of the air-gap is larger than the cross-sectional area of the core.
    Type: Application
    Filed: April 19, 2012
    Publication date: October 25, 2012
    Applicant: ABB AG
    Inventors: Rolf DISSELNKÖTTER, Adrian Hozoi