Patents by Inventor Dariusz Czarkowski
Dariusz Czarkowski 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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Patent number: 10539629Abstract: A programmable alternating current (AC) load in communication with an equipment under test (EUT) is disclosed, where the EUT generates an equipment under test voltage. The programmable AC load includes an active load profiler (ALP) for creating current modulation load profiles that are sent to the EUT. The ALP includes a voltage source inverter, a control module in operative communication with the voltage source inverter of the ALP, and a grid-connected inverter having an AC side and a direct current (DC) side. The AC side of the voltage source inverter is in communication with the EUT for receiving the equipment under test voltage. The control module sends a control duty signal to the voltage source inverter indicating a switching frequency and a duty cycle of the current modulation load profiles.Type: GrantFiled: December 17, 2018Date of Patent: January 21, 2020Inventors: Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Eugene V. Solodovnik, Shengyi Liu
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Patent number: 10476379Abstract: A power supply system suitable for use by an aircraft is disclosed. The power system converts power from an unregulated DC power source to multiple AC and DC voltage outputs. The power supply system comprises an interleaved buck converter, and interleaved full-bridge converter, an interleaved inverter, and a control system. In one configuration, the interleaved inverter uses high-voltage DC generated by the interleaved four-bridge converter as its power input to generate a high-voltage AC output.Type: GrantFiled: November 22, 2016Date of Patent: November 12, 2019Assignee: The Boeing CompanyInventors: Kamiar Karimi, Shengyi Liu, Duanyang Wang, Francisco de Leon, Qingquan Tang, Dazhong Gu, Dariusz Czarkowski, Kerim Colak, Mariusz Bojarski
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Patent number: 10381950Abstract: A wireless charger for an electric vehicle and a resonant inverter comprising a resonant portion that serially connects to a phase shifting portion and serially connects with a load component and a method for controlling a resonant inverter having multiple phase shifts, comprising operating the frequency of the resonant inverter close to the resonant frequency of the inverter through the full operation range of the resonant inverter; and adjusting phase shifts to control the output power of the resonant inverter.Type: GrantFiled: February 18, 2015Date of Patent: August 13, 2019Assignee: New York UniversityInventors: Mariusz Bojarski, Dariusz Czarkowski, Francisco De Leon
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Publication number: 20190120913Abstract: A programmable alternating current (AC) load in communication with an equipment under test (EUT) is disclosed, where the EUT generates an equipment under test voltage. The programmable AC load includes an active load profiler (ALP) for creating current modulation load profiles that are sent to the EUT. The ALP includes a voltage source inverter, a control module in operative communication with the voltage source inverter of the ALP, and a grid-connected inverter having an AC side and a direct current (DC) side. The AC side of the voltage source inverter is in communication with the EUT for receiving the equipment under test voltage. The control module sends a control duty signal to the voltage source inverter indicating a switching frequency and a duty cycle of the current modulation load profiles.Type: ApplicationFiled: December 17, 2018Publication date: April 25, 2019Inventors: Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Eugene V. Solodovnik, Shengyi Liu
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Patent number: 10184990Abstract: A programmable AC load in communication with an equipment under test (EUT) is disclosed. The EUT generates an equipment under test voltage. The programmable alternating current (AC) load includes an active load profiler (ALP), a grid-connecter inverter, and an operational mode selector. The operational mode selector is in communication with an AC side of the grid-connected inverter. The operational mode selector places the programmable AC load in either a regenerative mode where the equipment under test voltage is sent to a main grid or a dissipative mode where the equipment under test voltage is dissipated by heat.Type: GrantFiled: October 30, 2014Date of Patent: January 22, 2019Assignee: The Boeing CompanyInventors: Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Eugene V. Solodovnik, Shengyi Liu
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Patent number: 9975441Abstract: A system for wirelessly charging an electric vehicle comprises a wireless charging coil having a first end, a second end, and a plurality of turns. The first end has a first turn having a first radius r1 and the second end has an Nth turn having an Nth radius rN, rN<r1 such that the wireless charging coil is funnel shaped, where, an ascending distance between each adjacent turn of the wireless charging coil is: ??j,j+1=?j+i?3,j+i?2+(??34??i,i+1), for j?4 and r?j+1>0 where, ??j,j+1=r?j?r?j+1 is the distance between adjacent turns, ? is between 0.05% and 0.2%, i is 2 to N; j is 1 to N; and ??34 is an ascending distance between the third turn and the fourth turn.Type: GrantFiled: December 16, 2015Date of Patent: May 22, 2018Assignee: NEW YORK UNIVERSITYInventors: Jingduo Huang, Dariusz Czarkowski, Francisco De Leon, Mariusz Bojarski
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Patent number: 9768680Abstract: A power supply system is disclosed that includes a first interleaved power supply, a second interleaved power supply, and a common electromagnetic interference filter. The common electromagnetic interference filter is configured to provide DC power from a DC power source to both the first interleaved power supply and the second interleaved power supply. In one example, the common electromagnetic interference filter comprises a localized filter stage configured to receive DC power from the DC power source, and a distributed filter stage configured to receive DC power from the localized filter stage. The distributed filter stage includes a first set of common mode capacitors electrically connected to and physically proximate input power lines of the first interleaved power supply, and a second set of common mode capacitors electrically connected to and physically proximate input power lines of the second interleaved power supply.Type: GrantFiled: September 23, 2013Date of Patent: September 19, 2017Assignee: The Boeing CompanyInventors: Mariusz Bojarski, Kerim Colak, Dazhong Gu, Duanyang Wang, Qingquan Tang, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Shengyi Liu
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Publication number: 20170072882Abstract: A power supply system suitable for use by an aircraft is disclosed. The power system converts power from an unregulated DC power source to multiple AC and DC voltage outputs. The power supply system comprises an interleaved buck converter, and interleaved full-bridge converter, an interleaved inverter, and a control system. In one configuration, the interleaved inverter uses high-voltage DC generated by the interleaved four-bridge converter as its power input to generate a high-voltage AC output.Type: ApplicationFiled: November 22, 2016Publication date: March 16, 2017Inventors: Kamiar Karimi, Shengyi Liu, Duanyang Wang, Francisco de Leon, Qingquan Tang, Dazhong Gu, Dariusz Czarkowski, Kerim Colak, Mariusz Bojarski
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Publication number: 20170008405Abstract: A wireless charger for an electric vehicle and a resonant inverter comprising a resonant portion that serially connects to a phase shifting portion and serially connects with a load component and a method for controlling a resonant inverter having multiple phase shifts, comprising operating the frequency of the resonant inverter close to the resonant frequency of the inverter through the full operation range of the resonant inverter; and adjusting phase shifts to control the output power of the resonant inverter.Type: ApplicationFiled: February 18, 2015Publication date: January 12, 2017Applicant: NEW YORK UNIVERSITYInventors: Mariusz Bojarski, Dariusz Czarkowski, Francisco De Leon
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Patent number: 9533638Abstract: A power supply system suitable for use by an aircraft is disclosed. The power system converts power from an unregulated DC power source to multiple AC and DC voltage outputs. The power supply system comprises an interleaved buck converter, and interleaved full-bridge converter, an interleaved inverter, and a control system. In one configuration, the interleaved inverter uses high-voltage DC generated by the interleaved four-bridge converter as its power input to generate a high-voltage AC output.Type: GrantFiled: July 18, 2013Date of Patent: January 3, 2017Assignee: The Boeing CompanyInventors: Kamiar Karimi, Shengyi Liu, Duanyang Wang, Francisco de Leon, Qingquan Tang, Dazhong Gu, Dariusz Czarkowski, Kerim Colak, Mariusz Bojarski
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Patent number: 9425693Abstract: A voltage conversion system and methods are disclosed. Voltage converter cells are controlled using interleaved phase-shift modulation signals, and convert an input electrical current at an input voltage to an output electrical current at an output voltage. Each of the voltage converter cells comprises: a transformer comprising a primary side and a secondary side, a full-bridge voltage converter connected in parallel to the primary side, and center-tapped rectifiers connected in series to the secondary side. One or more group of outputs of the voltage converters are coupled in series via the center-tapped rectifiers.Type: GrantFiled: June 24, 2014Date of Patent: August 23, 2016Assignee: The Boeing CompanyInventors: Duanyang Wang, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Lijun Gao, Shengyi Liu
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Patent number: 9401633Abstract: A method and apparatus for converting direct current into alternating current. The direct current is converted into a number of alternating currents using a switch system. The number of alternating currents is filtered using a set of inductors and a set of capacitors. Higher-frequency electromagnetic interference is blocked using a choke located between the set of inductors and the set of capacitors.Type: GrantFiled: January 24, 2014Date of Patent: July 26, 2016Assignee: The Boeing CompanyInventors: Qingquan Tang, Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Shengyi Liu
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Publication number: 20160176301Abstract: A system for wirelessly charging an electric vehicle comprises a wireless charging coil having a first end, a second end, and a plurality of turns. The first end has a first turn having a first radius r1 and the second end has an Nth turn having an Nth radius rN, rN<r1 such that the wireless charging coil is funnel shaped, where, an ascending distance between each adjacent turn of the wireless charging coil is: ?j,j+1?=?j+i?3,j+i?2+(?34???i,i+1), for j?4 and rj+1?>0 where, ?j,j+1?=rj??rj+1? is the distance between adjacent turns, ? is between 0.05% and 0.2%, i is 2 to N; j is 1 to N; and ?34? is an ascending distance between the third turn and the fourth turn.Type: ApplicationFiled: December 16, 2015Publication date: June 23, 2016Applicant: New York UniversityInventors: Jingduo Huang, Dariusz Czarkowski, Francisco De Leon, Mariusz Bojarski
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Publication number: 20160126731Abstract: A programmable AC load in communication with an equipment under test (EUT) is disclosed. The EUT generates an equipment under test voltage. The programmable alternating current (AC) load includes an active load profiler (ALP), a grid-connecter inverter, and an operational mode selector. The operational mode selector is in communication with an AC side of the grid-connected inverter. The operational mode selector places the programmable AC load in either a regenerative mode where the equipment under test voltage is sent to a main grid or a dissipative mode where the equipment under test voltage is dissipated by heat.Type: ApplicationFiled: October 30, 2014Publication date: May 5, 2016Inventors: Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Eugene V. Solodovnik, Shengyi Liu
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Patent number: 9331594Abstract: A method and apparatus for converting direct current into alternating current. An initial voltage level of an input voltage source is changed using a dual converter to form a plurality of voltage sources. Each of the plurality of voltage sources has voltage levels different from the initial voltage level. An inverter is supplied direct current from the plurality of voltage sources formed by the dual converter. The direct current is converted into a number of alternating currents using the inverter.Type: GrantFiled: January 24, 2014Date of Patent: May 3, 2016Assignee: THE BOEING COMPANYInventors: Dazhong Gu, Qingquan Tang, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Shengyi Liu
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Publication number: 20150214854Abstract: A method and apparatus for converting direct current into alternating current. An initial voltage level of an input voltage source is changed using a dual converter to form a plurality of voltage sources. Each of the plurality of voltage sources has voltage levels different from the initial voltage level. An inverter is supplied direct current from the plurality of voltage sources formed by the dual converter. The direct current is converted into a number of alternating currents using the inverter.Type: ApplicationFiled: January 24, 2014Publication date: July 30, 2015Applicant: The Boeing CompanyInventors: Dazhong Gu, Qingquan Tang, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Shengyi Liu
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Publication number: 20150214832Abstract: A method and apparatus for converting direct current into alternating current. The direct current is converted into a number of alternating currents using a switch system. The number of alternating currents is filtered using a set of inductors and a set of capacitors. Higher-frequency electromagnetic interference is blocked using a choke located between the set of inductors and the set of capacitors.Type: ApplicationFiled: January 24, 2014Publication date: July 30, 2015Applicant: THE BOEING COMPANYInventors: Qingquan Tang, Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Shengyi Liu
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Patent number: 9048726Abstract: A control system for a power drive section of a three-phase system is disclosed. The control system comprises a positive sequence channel, a negative sequence channel, and a zero sequence channel. The positive sequence channel processes positive sequence error signals, the negative sequence channel processes negative sequence error signals, and the zero sequence channel processes zero sequence error signals. Each sequence channel includes a harmonic repetitive controller, a repetitive controller compensator, and a fundamental frequency controller configured to operate in parallel with the harmonic repetitive controller and repetitive controller compensator. Both the repetitive controller compensator of the negative sequence channel and the repetitive controller compensator of the positive sequence channel are configured with the same, first frequency response.Type: GrantFiled: March 11, 2013Date of Patent: June 2, 2015Assignee: The Boeing CompanyInventors: Qingquan Tang, Dariusz Czarkowski, Francisco de Leon, Kamiar Karimi, Shengyi Liu
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Patent number: 8964432Abstract: A power conversion system is disclosed that provides multiphase power, including phase voltages for each phase of the multiphase power. The system comprises a plurality of inverters that generate PWM output voltages based on PWM control signals. A plurality of inductive components is configured to receive the PWM output voltages to generate the phase voltages. The PWM output voltages cause circulating current flows through the inductive components. A voltage controller is employed that is responsive to the phase voltages to generate voltage modulation signals corresponding to the phase voltages. A plurality of current sharing channels are respectively associated with each of the plurality of inductive components and are configured generate current sharing modulation signals in response to the circulating current flows. The PWM control signals are generated based on modulation signals obtained by combining the current sharing modulation signals and voltage modulation signals.Type: GrantFiled: January 29, 2013Date of Patent: February 24, 2015Assignee: The Boeing CompanyInventors: Qingquan Tang, Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar Karimi, Shengyi Liu
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Publication number: 20150021983Abstract: A power supply system suitable for use by an aircraft is disclosed. The power system converts power from an unregulated DC power source to multiple AC and DC voltage outputs. The power supply system comprises an interleaved buck converter, and interleaved full-bridge converter, an interleaved inverter, and a control system. In one configuration, the interleaved inverter uses high-voltage DC generated by the interleaved four-bridge converter as its power input to generate a high-voltage AC output.Type: ApplicationFiled: July 18, 2013Publication date: January 22, 2015Inventors: Kamiar Karimi, Shengyi Liu, Duanyang Wang, Francisco de Leon, Qingquan Tang, Dazhong Gu, Dariusz Czarkowski, Kerim Colak, Mariusz Bojarski