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).
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Publication number: 20250119069Abstract: 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: ApplicationFiled: October 9, 2023Publication date: April 10, 2025Applicant: ABB Schweiz AGInventors: Eddy C. Aeloiza, Goran Mandic, Weiqiang Chen
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Publication number: 20250105759Abstract: 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: ApplicationFiled: September 26, 2023Publication date: March 27, 2025Inventors: Eddy Aeloiza, Weiqiang Chen, Goran Mandic
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Patent number: 12255552Abstract: 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: GrantFiled: October 27, 2022Date of Patent: March 18, 2025Assignee: ABB Schweiz AGInventors: Eddy C. Aeloiza, Yuxiang Shi, Goran Mandic, Weiqiang Chen
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Patent number: 12162225Abstract: 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: GrantFiled: July 17, 2023Date of Patent: December 10, 2024Assignee: ABB SCHWEIZ AGInventors: Jonah Kadoko, Daniel Armstrong, Matthew Hetrich, Sheng Zhong, Goran Mandic
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Publication number: 20240146212Abstract: 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: ApplicationFiled: October 27, 2022Publication date: May 2, 2024Applicant: ABB Schweiz AGInventors: Eddy C. Aeloiza, Yuxiang Shi, Goran Mandic, Weiqiang Chen
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Publication number: 20230356477Abstract: 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: ApplicationFiled: July 17, 2023Publication date: November 9, 2023Inventors: Jonah Kadoko, Daniel Armstrong, Matthew Hetrich, Sheng Zhong, Goran Mandic
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Patent number: 11760037Abstract: 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: GrantFiled: November 10, 2020Date of Patent: September 19, 2023Assignee: ABB Schweiz AGInventors: Jonah Kadoko, Daniel Armstrong, Matthew Hetrich, Sheng Zhong, Goran Mandic
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Publication number: 20230229220Abstract: 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: ApplicationFiled: January 18, 2022Publication date: July 20, 2023Applicant: ABB Schweiz AGInventors: Harish Suryanarayana, Goran Mandic, Eddy C. Aeloiza
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Publication number: 20220143932Abstract: 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: ApplicationFiled: November 10, 2020Publication date: May 12, 2022Inventors: Jonah Kadoko, Daniel Armstrong, Matthew Hetrich, Sheng Zhong, Goran Mandic
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Patent number: 11031806Abstract: 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: GrantFiled: February 4, 2020Date of Patent: June 8, 2021Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
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Publication number: 20200321799Abstract: 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: ApplicationFiled: February 4, 2020Publication date: October 8, 2020Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
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Patent number: 10554075Abstract: 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: GrantFiled: October 8, 2018Date of Patent: February 4, 2020Assignee: Eaton Intelligent Power LimitedInventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
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Publication number: 20190044374Abstract: 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: ApplicationFiled: October 8, 2018Publication date: February 7, 2019Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
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Patent number: 10103572Abstract: 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: GrantFiled: April 27, 2016Date of Patent: October 16, 2018Assignee: Eaton Intelligent Power LimitedInventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic
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Publication number: 20170317525Abstract: 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: ApplicationFiled: April 27, 2016Publication date: November 2, 2017Inventors: George Arthur Navarro, Vincent Edward Wilder, Goran Mandic