Patents by Inventor Sebastian Pedro Rosado
Sebastian Pedro Rosado 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: 20240097550Abstract: A controller controls a balancer circuit, and is configured to: determine a difference value between a first DC link voltage value across a first DC link of a power converter and a second DC link voltage value across a second DC link of the power converter; determine a phase-angle and a magnitude of the difference value for an integer harmonic of a predetermined grid frequency; and provide a switching signal for switching between the first DC link and the second DC link based on the phase-angle and the magnitude. The controller is also configured to control a mid-point current at a mid-point terminal of the power converter in terms of magnitude and direction based on the switching signal.Type: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Inventors: Sebastian Pedro Rosado, Zhaohui Wang, Francisco Daniel Freijedo Fernández
-
Patent number: 11632069Abstract: A system for providing power to one or more loads includes a plurality of power converters where each power converter is configured to be arranged in a parallel configuration with one or more additional power converters so as to provide power to the one or more loads. The system also includes a central controller configured to receive a plurality of local voltage reference values from each of the power converters, output a global voltage reference value based on the local voltage reference values, and transmit the global voltage reference value to each of the power converters.Type: GrantFiled: May 21, 2021Date of Patent: April 18, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Diarmaid John Hogan, Andrei Dinu, Rodrigo Fernandez-Mattos, Sebastian Pedro Rosado, Virgilio Valdivia Guerrero
-
Publication number: 20230052028Abstract: A power switch module includes a semiconductor die and a conductive busbar. The semiconductor die is electrically conductively mounted to the busbar. The module also includes a dielectric coolant fluid and the busbar and the semiconductor die mounted thereto are immersed in the dielectric coolant fluid.Type: ApplicationFiled: August 9, 2022Publication date: February 16, 2023Inventors: Sebastian Pedro ROSADO, Karthik DEBBADI
-
Patent number: 11489459Abstract: A power converter for providing power to one or more loads, wherein the power converter is configured to be arranged in a parallel configuration with one or more additional power converters. The power converter comprises an inverter for receiving an input voltage and converting this to an output voltage having an associated output current, a module configured to modulate the output voltage using a modulation scheme and first and second feedback circuits.Type: GrantFiled: May 18, 2021Date of Patent: November 1, 2022Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Diarmaid John Hogan, Andrei Dinu, Sebastian Pedro Rosado, Virgilio Valdivia Guerrero, Rodrigo Fernandez-Mattos
-
Patent number: 11316513Abstract: A gate driver circuit for driving a gate-controlled switching device comprises a voltage monitor circuit portion arranged to produce a first value that is dependent on a time derivative (dv/dt) of a voltage applied across the gate-controlled switching device. A current monitor circuit portion is arranged to produce a second value that is dependent on a time derivative (di/dt) of a current through the gate-controlled switching device. A compensator is arranged to receive an alternating input signal (PWMref), the first value, and the second value, wherein the compensator modulates a magnitude and transition profile of the alternating input signal (PWMref) in response to the respective time derivatives of the voltage and the current, thereby generating a modulated control signal (PWMN). The gate driver circuit supplies the modulated control signal (PWMN) to the gate terminal of the gate-controlled switching device.Type: GrantFiled: October 6, 2020Date of Patent: April 26, 2022Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Chi Zhang, Sebastian Pedro Rosado
-
Publication number: 20220021323Abstract: A system for providing power to one or more loads includes a plurality of power converters where each power converter is configured to be arranged in a parallel configuration with one or more additional power converters so as to provide power to the one or more loads. The system also includes a central controller configured to receive a plurality of local voltage reference values from each of the power converters, output a global voltage reference value based on the local voltage reference values, and transmit the global voltage reference value to each of the power converters.Type: ApplicationFiled: May 21, 2021Publication date: January 20, 2022Inventors: Diarmaid John HOGAN, Andrei DINU, Rodrigo FERNANDEZ-MATTOS, Sebastian Pedro ROSADO, Virgilio Valdivia GUERRERO
-
Publication number: 20210367534Abstract: A power converter for providing power to one or more loads, wherein the power converter is configured to be arranged in a parallel configuration with one or more additional power converters. The power converter comprises an inverter for receiving an input voltage and converting this to an output voltage having an associated output current, a module configured to modulate the output voltage using a modulation scheme and first and second feedback circuits.Type: ApplicationFiled: May 18, 2021Publication date: November 25, 2021Inventors: Diarmaid John HOGAN, Andrei Dinu, Sebastian Pedro ROSADO, Virgilio Valdivia Guerrero, Rodrigo Fernandez-Mattos
-
Publication number: 20210211124Abstract: A gate driver circuit for driving a gate-controlled switching device comprises a voltage monitor circuit portion arranged to produce a first value that is dependent on a time derivative (dv/dt) of a voltage applied across the gate-controlled switching device. A current monitor circuit portion is arranged to produce a second value that is dependent on a time derivative (di/dt) of a current through the gate-controlled switching device. A compensator is arranged to receive an alternating input signal (PWMref), the first value, and the second value, wherein the compensator modulates a magnitude and transition profile of the alternating input signal (PWMref) in response to the respective time derivatives of the voltage and the current, thereby generating a modulated control signal (PWMN). The gate driver circuit supplies the modulated control signal (PWMN) to the gate terminal of the gate-controlled switching device.Type: ApplicationFiled: October 6, 2020Publication date: July 8, 2021Inventors: Sebastian Pedro ROSADO, Chi ZHANG
-
Patent number: 10103576Abstract: A method and system for a control power supply system is provided. The control power supply system includes a first conductor configured to carry a direct current (DC) electrical current from a source to a load, a second conductor configured to carry the DC electrical current from the load to the source, and an AC power source coupled to at least one of the first and the second conductors, the AC power source configured to superimpose a selectable relatively high frequency AC component onto the DC electrical current to generate a composite power signal.Type: GrantFiled: August 19, 2016Date of Patent: October 16, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Stefan Schroeder, Christof Martin Sihler, Sebastian Pedro Rosado
-
Publication number: 20160359365Abstract: A method and system for a control power supply system is provided. The control power supply system includes a first conductor configured to carry a direct current (DC) electrical current from a source to a load, a second conductor configured to carry the DC electrical current from the load to the source, and an AC power source coupled to at least one of the first and the second conductors, the AC power source configured to superimpose a selectable relatively high frequency AC component onto the DC electrical current to generate a composite power signal.Type: ApplicationFiled: August 19, 2016Publication date: December 8, 2016Inventors: Stefan Schroeder, Christof Martin Sihler, Sebastian Pedro Rosado
-
Patent number: 9450412Abstract: A method and system for a control power supply system is provided. The control power supply system includes a first conductor configured to carry a direct current (DC) electrical current from a source to a load, a second conductor configured to carry the DC electrical current from the load to the source, a electrical device electrically coupled in series with at least one of the first and second conductor. The electrical device is configured to fail in a shorted condition such that failure of the electrical device maintains a direct current (DC) ring bus including the first and second conductor. The control power supply system also includes a control power circuit electrically coupled in parallel with at least a portion of the electrical device such that a DC voltage across at least a portion of the electrical device provides a DC voltage supply to the control power circuit.Type: GrantFiled: December 22, 2010Date of Patent: September 20, 2016Assignee: General Electric CompanyInventors: Stefan Schroeder, Christof Martin Sihler, Sebastian Pedro Rosado
-
Patent number: 9312783Abstract: A power converter module including a voltage source current controlled power converter for providing unidirectional current having at least four output voltage levels is provided. The voltage source current controlled power converter includes an input terminal and an output terminal, and a first conductive path and a second conductive path is coupled in parallel to each other between the input terminal and the output terminal. Each of the conductive paths comprises at least one diode and at least one switch coupled in series to the respective conductive path. The at least one diode in the first conductive path are coupled closer to the input terminal and the at least one diode in the second conductive path are coupled closer to the output terminal. The voltage source current controlled power converter further includes at least two energy storage elements coupled between the first conductive path and the second conductive path.Type: GrantFiled: December 18, 2012Date of Patent: April 12, 2016Assignee: General Electric CompanyInventors: Simon Herbert Schramm, Thomas Brueckner, Stefan Schroeder, Christof Martin Sihler, Sebastian Pedro Rosado
-
Patent number: 9270189Abstract: A power converter apparatus includes a primary bridge having a plurality of diagonally opposed primary power elements, and a secondary bridge having a plurality of diagonally opposed secondary power elements. The primary and secondary bridges are electrically coupled by a transformer. At least one control unit is configured to phase-shift switch the primary and secondary power elements, such that one or more of the primary and secondary power elements are switched off under near-zero current conditions to reduce voltage and current stresses and commutation losses within the power converter.Type: GrantFiled: May 18, 2012Date of Patent: February 23, 2016Assignee: General Electric CompanyInventors: Sebastian Pedro Rosado, Henry Todd Young, Simon Herbert Schramm, Alvaro Jorge Mari Curbelo, Jason Daniel Kuttenkuler, Zhihui Yuan
-
Patent number: 9235227Abstract: A power converter includes a plurality of switches that interconnect first and second input terminals of the power converter with first and second output terminals of the power converter. The switches are switched to convert power from the input terminals to the output terminals. During the switching, voltage spikes are mitigated by a first RLC branch connected from the first input terminal to the first output terminal and by a second RLC branch connected from the second input terminal to the second output terminal.Type: GrantFiled: January 9, 2013Date of Patent: January 12, 2016Assignee: General Electric CompanyInventors: Alvaro Jorge Mari Curbelo, Ajith Kuttannair Kumar, Henry Todd Young, Jason Daniel Kuttenkuler, Sebastian Pedro Rosado
-
Patent number: 9178437Abstract: A controller for a power converter includes one or more controller modules operably linked to a transformer core of the power converter, to primary bridge switches of the power converter, and to secondary bridge switches of the power converter, wherein the one or more controller modules are configured to avoid saturation of the transformer core by modulating pulse widths of first electrical pulses sent to the primary bridge switches, based at least on measurements of DC components of current through primary and secondary windings adjacent the transformer core, and by modulating pulse widths of second electrical pulses sent to the secondary bridge switches, based at least on measurements of DC components of current through the primary and secondary windings.Type: GrantFiled: December 31, 2012Date of Patent: November 3, 2015Assignee: General Electric CompanyInventors: Sebastian Pedro Rosado, Henry Todd Young, Simon Herbert Schramm, Alvaro Jorge Mari Curbelo, Jason Daniel Kuttenkuler
-
Patent number: 9143029Abstract: A direct current (DC) power distribution system is provided for an aircraft. The system includes a DC system bus configured to carry electrical power from a source of electrical power to a plurality of electrical loads. The electrical loads are onboard the aircraft. The DC system bus includes a load side. The system includes a plurality of power converter modules that are electrically coupled in series to the DC system bus on the load side of the DC system bus. The power converter modules are configured to be electrically attached to corresponding sub-sets of the electrical loads. At least one of the power converter modules is configured to be short circuited in response to a fault such that the at least one power converter module does not supply electrical power to the corresponding subset of the electrical loads.Type: GrantFiled: December 15, 2011Date of Patent: September 22, 2015Assignee: General Electric CompanyInventors: Christof Sihler, Sebastian Pedro Rosado
-
Patent number: 9130470Abstract: A power converter control system includes primary bridge controller that is configured to actuate a first plurality of gate drive units that switch a first plurality of power elements in a primary bridge of a power converter. The control system further includes a secondary bridge controller separate from the primary bridge controller that is configured to actuate a second plurality of gate drive units to switch a second plurality of power elements in a secondary bridge of the power converter.Type: GrantFiled: September 14, 2012Date of Patent: September 8, 2015Assignee: General Electric CompanyInventors: Sebastian Pedro Rosado, Henry Todd Young, Simon Herbert Schramm, Alvaro Jorge Mari Curbelo, Jason Daniel Kuttenkuler, Paolo Soldi
-
Patent number: 9087635Abstract: A load tap changer includes a mechanical switch, a semiconductor switch and an impedance branch or an uncontrolled semiconductor switch. The mechanical switch is connected to a power terminal of a voltage conversion device to carry an electric current and is activated to switch from a first tap to a second tap of the voltage conversion device when a tap change signal is received. The semiconductor switch is then connected between the first tap and the power terminal of the voltage conversion device and is disconnected before the mechanical switch is connected to the second tap. The impedance branch or the uncontrolled semiconductor switch is connected between the second tap and the power terminal of the voltage conversion device before the mechanical switch is connected to the second tap. The impedance or the uncontrolled semiconductor switch is disconnected after the mechanical switch is connected to the second tap.Type: GrantFiled: August 24, 2012Date of Patent: July 21, 2015Assignee: General Electric CompanyInventors: Sebastian Pedro Rosado, Tiziana Bertoncelli, Piniwan Thiwanka Bandara Wijekoon, Ara Panosyan, Manoj Ramprasad Shah, Paolo Soldi
-
Publication number: 20140191745Abstract: A power converter includes a plurality of switches that interconnect first and second input terminals of the power converter with first and second output terminals of the power converter. The switches are switched to convert power from the input terminals to the output terminals. During the switching, voltage spikes are mitigated by a first RLC branch connected from the first input terminal to the first output terminal and by a second RLC branch connected from the second input terminal to the second output terminal.Type: ApplicationFiled: January 9, 2013Publication date: July 10, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: ALVARO JORGE MARI CURBELO, AJITH KUTTANNAIR KUMAR, HENRY TODD YOUNG, JASON DANIEL KUTTENKULER, SEBASTIAN PEDRO ROSADO
-
Publication number: 20140185328Abstract: A controller for a power converter includes one or more controller modules operably linked to a transformer core of the power converter, to primary bridge switches of the power converter, and to secondary bridge switches of the power converter, wherein the one or more controller modules are configured to avoid saturation of the transformer core by modulating pulse widths of first electrical pulses sent to the primary bridge switches, based at least on measurements of DC components of current through primary and secondary windings adjacent the transformer core, and by modulating pulse widths of second electrical pulses sent to the secondary bridge switches, based at least on measurements of DC components of current through the primary and secondary windings.Type: ApplicationFiled: December 31, 2012Publication date: July 3, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: SEBASTIAN PEDRO ROSADO, HENRY TODD YOUNG, SIMON HERBERT SCHRAMM, ALVARO JORGE MARI CURBELO, JASON DANIEL KUTTENKULER