Patents by Inventor Goran Mandic

Goran Mandic 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: 20250119069
    Abstract: The present disclosure provides a method, control circuit, and non-transitory computer-readable medium for adjusting a boosting current of an auxiliary resonant commutated pole inverter (ARCPI). The method includes: (1) providing an input to trigger a first counter; (2) triggering a second counter based on determining that the first counter reaches a boosting time of the ARCPI; (3) stopping the second counter based on determining that a detection signal is received, and obtaining a time interval counted by the second counter; and (4) adjusting the boosting current based on determining that the time interval is equal to a sum of a first time and a blanking time.
    Type: Application
    Filed: October 9, 2023
    Publication date: April 10, 2025
    Applicant: ABB Schweiz AG
    Inventors: Eddy C. Aeloiza, Goran Mandic, Weiqiang Chen
  • Publication number: 20250105759
    Abstract: A zero voltage detection device may include a voltage divider that scales down a first voltage to a second voltage, a comparator that compare the second voltage to one or more voltage thresholds and outputs a first set of signals indicative of an estimation of the first voltage approaching a zero-voltage instant, the one or more voltage thresholds configured to compensate for a time delay from the voltage divider, a flip flop that obtains the first set of signals and outputs a second set of signals to control a switching operation of a switching device, and a control system that obtains the second set of signals during a defined time window and that forces the switching device to turn on at an end of the defined time window if the second set of signals is not detected to limit turn-on losses.
    Type: Application
    Filed: September 26, 2023
    Publication date: March 27, 2025
    Inventors: Eddy Aeloiza, Weiqiang Chen, Goran Mandic
  • Patent number: 12255552
    Abstract: A method for an auxiliary device of an auxiliary resonant commutated pole inverter (ARCPI) to determine a boosting time of the ARCPI is provided. The auxiliary device includes an auxiliary switch path that uses a resonant inductor with at least one saturable inductor. The method includes: calculating, by a processor of the auxiliary device, a first boosting time in the auxiliary switch path based on a theoretical resonance inductance and a voltage that are applied to the resonant inductor; determining, by the processor, a second boosting time in the auxiliary switch path based on a look-up table; and determining, by the processor, the boosting time in the auxiliary switch path based on the first boosting time and the second boosting time. The method further includes controlling, by the processor, boosting current of the ARCPI based on the boosting time in the auxiliary switch path.
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: March 18, 2025
    Assignee: ABB Schweiz AG
    Inventors: Eddy C. Aeloiza, Yuxiang Shi, Goran Mandic, Weiqiang Chen
  • Patent number: 12162225
    Abstract: A feedback control system for use with ultrasonic welding. A weld energy set point and/or a reference power curve are used by a controller to provide a power supply voltage set point and a power supply frequency set point for the power that is to be drawn by an ultrasonic weld generator. Information regarding the actual voltage and/or frequency of the drawn electrical power, and/or the frequency and magnitude of an ultrasonic wave transmitted from the generator to an applicator tool used to weld an object can be utilized by an estimator to estimate the weld energy dissipated at the weld site and/or generate a power curve for the welding operation. Using information from the estimator, the controller can determine adjustments for variables for the current and/or future welding operations. Further, welding may not commence until a clamping force exerted on the object satisfies a clamping force set point.
    Type: Grant
    Filed: July 17, 2023
    Date of Patent: December 10, 2024
    Assignee: ABB SCHWEIZ AG
    Inventors: Jonah Kadoko, Daniel Armstrong, Matthew Hetrich, Sheng Zhong, Goran Mandic
  • Publication number: 20240146212
    Abstract: A method for an auxiliary device of an auxiliary resonant commutated pole inverter (ARCPI) to determine a boosting time of the ARCPI is provided. The auxiliary device includes an auxiliary switch path that uses a resonant inductor with at least one saturable inductor. The method includes: calculating, by a processor of the auxiliary device, a first boosting time in the auxiliary switch path based on a theoretical resonance inductance and a voltage that are applied to the resonant inductor; determining, by the processor, a second boosting time in the auxiliary switch path based on a look-up table; and determining, by the processor, the boosting time in the auxiliary switch path based on the first boosting time and the second boosting time. The method further includes controlling, by the processor, boosting current of the ARCPI based on the boosting time in the auxiliary switch path.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 2, 2024
    Applicant: ABB Schweiz AG
    Inventors: Eddy C. Aeloiza, Yuxiang Shi, Goran Mandic, Weiqiang Chen
  • Publication number: 20230356477
    Abstract: A feedback control system for use with ultrasonic welding. A weld energy set point and/or a reference power curve are used by a controller to provide a power supply voltage set point and a power supply frequency set point for the power that is to be drawn by an ultrasonic weld generator. Information regarding the actual voltage and/or frequency of the drawn electrical power, and/or the frequency and magnitude of an ultrasonic wave transmitted from the generator to an applicator tool used to weld an object can be utilized by an estimator to estimate the weld energy dissipated at the weld site and/or generate a power curve for the welding operation. Using information from the estimator, the controller can determine adjustments for variables for the current and/or future welding operations. Further, welding may not commence until a clamping force exerted on the object satisfies a clamping force set point.
    Type: Application
    Filed: July 17, 2023
    Publication date: November 9, 2023
    Inventors: Jonah Kadoko, Daniel Armstrong, Matthew Hetrich, Sheng Zhong, Goran Mandic
  • Patent number: 11760037
    Abstract: A feedback control system for use with ultrasonic welding. A weld energy set point and/or a reference power curve are used by a controller to provide a power supply voltage set point and a power supply frequency set point for the power that is to be drawn by an ultrasonic weld generator. Information regarding the actual voltage and/or frequency of the drawn electrical power, and/or the frequency and magnitude of an ultrasonic wave transmitted from the generator to an applicator tool used to weld an object can be utilized by an estimator to estimate the weld energy dissipated at the weld site and/or generate a power curve for the welding operation. Using information from the estimator, the controller can determine adjustments for variables for the current and/or future welding operations. Further, welding may not commence until a clamping force exerted on the object satisfies a clamping force set point.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: September 19, 2023
    Assignee: ABB Schweiz AG
    Inventors: Jonah Kadoko, Daniel Armstrong, Matthew Hetrich, Sheng Zhong, Goran Mandic
  • Publication number: 20230229220
    Abstract: A method for predicting power converter health is provided. The method comprises receiving a plurality of parameter measurements associated with a power converter system comprising a power converter. The plurality of parameter measurements comprises a first set of system measurements and a second set of failure precursor measurements. The method further comprises inputting the first set of system measurements into a first machine learning algorithm to generate expected failure precursor measurement information and inputting the expected failure precursor measurement information and the second set of failure precursor measurements into a second machine learning algorithm to generate component failure prediction information. The method also comprises performing one or more actions based on the generated component failure prediction information.
    Type: Application
    Filed: January 18, 2022
    Publication date: July 20, 2023
    Applicant: ABB Schweiz AG
    Inventors: Harish Suryanarayana, Goran Mandic, Eddy C. Aeloiza
  • Publication number: 20220143932
    Abstract: A feedback control system for use with ultrasonic welding. A weld energy set point and/or a reference power curve are used by a controller to provide a power supply voltage set point and a power supply frequency set point for the power that is to be drawn by an ultrasonic weld generator. Information regarding the actual voltage and/or frequency of the drawn electrical power, and/or the frequency and magnitude of an ultrasonic wave transmitted from the generator to an applicator tool used to weld an object can be utilized by an estimator to estimate the weld energy dissipated at the weld site and/or generate a power curve for the welding operation. Using information from the estimator, the controller can determine adjustments for variables for the current and/or future welding operations. Further, welding may not commence until a clamping force exerted on the object satisfies a clamping force set point.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Inventors: Jonah Kadoko, Daniel Armstrong, Matthew Hetrich, Sheng Zhong, Goran Mandic
  • Patent number: 11031806
    Abstract: A system includes a plurality of power routing units. Each of the power routing units includes a first AC port, a second AC port, and a static switch configured to couple and decouple the first AC port and the second AC port. Each of the power routing units further includes a DC port and a bidirectional converter circuit coupled between the second AC port and the DC port. The DC ports of the power routing units are coupled in common to a DC bus and the system further includes a control circuit configured to control the power routing units to provide power transfer between at least two of the power routing units via the DC bus.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: June 8, 2021
    Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
  • Publication number: 20200321799
    Abstract: A system includes a plurality of power routing units. Each of the power routing units includes a first AC port, a second AC port, and a static switch configured to couple and decouple the first AC port and the second AC port. Each of the power routing units further includes a DC port and a bidirectional converter circuit coupled between the second AC port and the DC port. The DC ports of the power routing units are coupled in common to a DC bus and the system further includes a control circuit configured to control the power routing units to provide power transfer between at least two of the power routing units via the DC bus.
    Type: Application
    Filed: February 4, 2020
    Publication date: October 8, 2020
    Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
  • Patent number: 10554075
    Abstract: A system includes a plurality of power routing units. Each of the power routing units includes a first AC port, a second AC port, and a static switch configured to couple and decouple the first AC port and the second AC port. Each of the power routing units further includes a DC port and a bidirectional converter circuit coupled between the second AC port and the DC port. The DC ports of the power routing units are coupled in common to a DC bus and the system further includes a control circuit configured to control the power routing units to provide power transfer between at least two of the power routing units via the DC bus.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: February 4, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
  • Publication number: 20190044374
    Abstract: A system includes a plurality of power routing units. Each of the power routing units includes a first AC port, a second AC port, and a static switch configured to couple and decouple the first AC port and the second AC port. Each of the power routing units further includes a DC port and a bidirectional converter circuit coupled between the second AC port and the DC port. The DC ports of the power routing units are coupled in common to a DC bus and the system further includes a control circuit configured to control the power routing units to provide power transfer between at least two of the power routing units via the DC bus.
    Type: Application
    Filed: October 8, 2018
    Publication date: February 7, 2019
    Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
  • Patent number: 10103572
    Abstract: A system includes a plurality of power routing units. Each of the power routing units includes a first AC port, a second AC port, and a static switch configured to couple and decouple the first AC port and the second AC port. Each of the power routing units further includes a DC port and a bidirectional converter circuit coupled between the second AC port and the DC port. The DC ports of the power routing units are coupled in common to a DC bus and the system further includes a control circuit configured to control the power routing units to provide power transfer between at least two of the power routing units via the DC bus.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: October 16, 2018
    Assignee: Eaton Intelligent Power Limited
    Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
  • Publication number: 20170317525
    Abstract: A system includes a plurality of power routing units. Each of the power routing units includes a first AC port, a second AC port, and a static switch configured to couple and decouple the first AC port and the second AC port. Each of the power routing units further includes a DC port and a bidirectional converter circuit coupled between the second AC port and the DC port. The DC ports of the power routing units are coupled in common to a DC bus and the system further includes a control circuit configured to control the power routing units to provide power transfer between at least two of the power routing units via the DC bus.
    Type: Application
    Filed: April 27, 2016
    Publication date: November 2, 2017
    Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic