Patents by Inventor Rodrigo Fernandez

Rodrigo Fernandez 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: 11949327
    Abstract: A power factor correction circuit comprising: a global voltage input; and means for deriving a reference current from the global voltage; whereby the means for deriving the reference current comprises a leading phase admittance cancellation, LPAC, transfer function and a filter, whereby the reference current is derived from a sum of an output of the LPAC transfer function and an output of the filter.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: April 2, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Ignacio Castro, Ponggorn Kulsangcharoen, Rodrigo Fernandez-Mattos
  • Publication number: 20240063737
    Abstract: A proportional integrator for control of a motor drive arranged to be connected in parallel with one or more other motor drives to drive a common load. The proportional integrator includes means to receive an input command signal and to compare with a local measured signal from the motor drive and to output a local control signal for that motor drive, further comprising a global input signal indicative of the behaviour of the one or more other motor drives, the global input signal being incorporated into the proportional integral function with the input command signal and the local measured signal to provide the local control signal.
    Type: Application
    Filed: August 16, 2023
    Publication date: February 22, 2024
    Inventors: Diarmaid John HOGAN, Andrei DINU, Rodrigo FERNANDEZ-MATTOS
  • Patent number: 11888418
    Abstract: A proportional integrator for control of a motor drive arranged to be connected in parallel with one or more other motor drives to drive a common load. The proportional integrator includes means to receive an input command signal and to compare with a local measured signal from the motor drive and to output a local control signal for that motor drive. Also includes are a global input signal indicative of the behaviour of the one or more other motor drives, the global input signal being incorporated into the proportional integral function with the input command signal and the local measured signal to provide the local control signal.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: January 30, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Diarmaid John Hogan, Virgilio Valdivia Guerrero, Andrei Dinu, Rodrigo Fernandez-Mattos
  • Publication number: 20240013965
    Abstract: A magnetic core section of a transformer or an inductor, includes a substantially rectangular core section body having opposing sides joined by opposing ends, and further comprising interlocking features provided at each of the ends, shaped to interlock with interlocking features of complementary core sections.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 11, 2024
    Inventors: Ponggorn KULSANGCHAROEN, Rodrigo FERNANDEZ-MATTOS, Kedar PITHWA
  • Patent number: 11824440
    Abstract: A power factor correction circuit comprising: a global voltage input; and means for deriving a reference current from the global voltage; whereby the means for deriving the reference current comprises a digital leading phase admittance cancellation, DLPAC, transfer function and a filter, whereby the reference current is derived from a sum of an output of the DLPAC transfer function and an output of the filter, and further comprising means for compensating for delays in the DLPAC function.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: November 21, 2023
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Ignacio Castro, Ponggorn Kulsangcharoen, Rodrigo Fernandez-Mattos
  • Publication number: 20230223838
    Abstract: An electrical power converter (1, 1?, 1?) includes a DC link capacitor (3, 3?, 3?) configured for connection to a DC power source to provide an input load, at least one pair of semiconductor switches (2a, 2b, 2c, 2a?, 2b?, 2a?, 2b?) connected in parallel with the DC link capacitor (3, 3?, 3?) and positioned on either side of an output load terminal (10a, 10b, 10c, 10a?, 10b?, 10a?, 10b?). The electrical power converter (1, 1?, 1?) further includes an inductive current sensor (12, 12?, 12?), arranged to sense a primary current from a terminal of the DC link capacitor (3, 3?, 3?), and a detection circuit (14), connected to the inductive current sensor (12, 12?, 12?) and arranged to monitor for an over-current condition, and to produce an output which causes at least one of the pair of semiconductor switches (2a, 2b, 2c, 2a?, 2b?, 2a?, 2b?) to be switched to a non-conducting state when an over-current condition is detected.
    Type: Application
    Filed: January 5, 2023
    Publication date: July 13, 2023
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Rodrigo Fernandez-Mattos, Stephen Minshull
  • Patent number: 11670447
    Abstract: An auto-transformer rectifier system comprising an 18-pulse (or multiple of 18-pulse) autotransformer rectifier unit ATRU having three, or a multiple of three, diode bridge rectifiers and a balancing resistor to balance the power flow through the diode bridge rectifiers, wherein the balancing resistor has a variable resistance, and further comprising a controller configured to identify imbalances between power flows of the respective diode bridge rectifiers and to adjust the resistance of the balancing resistor in response to the detected imbalance.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: June 6, 2023
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Ponggorn Kulsangcharoen, Rodrigo Fernandez-Mattos
  • Patent number: 11664650
    Abstract: A system for detecting a fault in electric power conversion equipment having an input stage and an output stage includes an output voltage sensor positioned within the output stage and configured to generate an output voltage signal; an input current sensor positioned at the input stage and configured to generate an input current signal; and a processor configured to analyze the output voltage signal and the input current signal to determine an occurrence of the fault in the electric power conversion equipment.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: May 30, 2023
    Assignee: Goodrich Corporation
    Inventors: Scott Harms, Rodrigo Fernandez-Mattos, Mohamed J. Abdille, Leeroy Paskell
  • Publication number: 20230138269
    Abstract: An example fluid collection assembly (100) includes a fluid impermeable barrier (102) defining at least one opening (104), a chamber (106) in fluid communication with the at least one opening (104), and at least one fluid outlet (108). The fluid collection assembly (100) also includes at least one porous material (110) disposed in the chamber (106). The fluid collection assembly (100) also includes at least one conduit (112) attached to the fluid outlet (108). The fluid collection assembly (100) includes one or more movement enhancing features (118).
    Type: Application
    Filed: March 18, 2021
    Publication date: May 4, 2023
    Inventors: Dana Ahmad Abdelal, Nicolas Austerman, Amanda Blackwell, Shaun Broussard, Jishen Cheng, Rodrigo Fernandez, Eric Rehm, Wendy Rodriguez
  • Patent number: 11632069
    Abstract: 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: Grant
    Filed: May 21, 2021
    Date of Patent: April 18, 2023
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Diarmaid John Hogan, Andrei Dinu, Rodrigo Fernandez-Mattos, Sebastian Pedro Rosado, Virgilio Valdivia Guerrero
  • Patent number: 11628681
    Abstract: The invention provides a canvas for painting or printing. More specifically, it is a pre-assembled structure which allows flat storage and transportation. It is easy to assemble and has supports with different thicknesses. It has a support for painting or printing and an integrated frame.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 18, 2023
    Assignee: INVERSIONES PUNTA CIELO LIMITADA
    Inventor: Rodrigo Fernandez Munizaga
  • Publication number: 20230103777
    Abstract: A switching bridge for the DC-DC stage of a power converter, the switching bridge having one or more sets of upper and lower series-connected switches (S1, S2) connected across a DC bus and arranged to be switched to provide an output AC voltage, the switching bridge further comprising a voltage divider (C1) arranged to vary the output AC voltage level according to the switching state of the switches.
    Type: Application
    Filed: September 16, 2022
    Publication date: April 6, 2023
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Rodrigo Fernandez-Mattos, Andrew Mclean, Jiewen Hu, Rolando Burgos, Bo Wen
  • Publication number: 20230089032
    Abstract: Examples relate to devices, systems, and methods for fluid collection such as urine. In an embodiment, the urine collection device includes a fluid impermeable barrier and fluid permeable structure. The fluid impermeable barrier is adjustable between an extended configuration and a compact configuration. The fluid impermeable barrier at least partially defines a chamber, an aperture configured to receive a conduit therethrough, and an opening. The fluid permeable structure positioned within the chamber to extend across at least a portion of the opening. The fluid permeable structure configured to wick fluid away from the opening.
    Type: Application
    Filed: January 26, 2021
    Publication date: March 23, 2023
    Inventors: James David Hughett, Kyle Benjamin Daw, Hannah Hinesley, Rodrigo Fernandez, Ginger Hiett, Caitlin Bowles, Henri Madigan, Juan Alejandro Saavedra Cisneros, Hassana Salifu, Benjamin Myers
  • Publication number: 20230078379
    Abstract: A bootstrap gate driver charging circuit arranged to drive the gate of an upper switch (QU) and a lower switch (QL) connected in series to provide an AC output voltage (400) voltage by alternatively turning on and off according to a predetermined duty cycle of alternate upper switch turn-on and lower switch turn-on phases, the bootstrap gate driver charging circuit comprising: an input terminal; an output terminal; an H-bridge inverter with an inverter input and an inverter output; a charging path; and a bootstrap capacitor. The input inverter is electrically connected to the input terminal, the inverter output is electrically connected to a first end of the bootstrap capacitor, the charging path is electrically connected between a second end of the bootstrap capacitor and a gate driver supply voltage; wherein in response to the lower switch being turned ON and providing a path to ground with respect to the supply voltage.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 16, 2023
    Inventors: Ponggorn KULSANGCHAROEN, Rodrigo FERNANDEZ-MATTOS, Jonathan ROADLEY-BATTIN
  • Publication number: 20230085386
    Abstract: A zero-sequence blocking transformer includes a first core part, a first pair of windings wound around the first core part, a second core part and a second pair of windings wound around the second core part, the first core and the second core having a geometry to generate a leakage inductance.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 16, 2023
    Inventors: Ponggorn KULSANGCHAROEN, Rodrigo FERNANDEZ-MATTOS
  • Publication number: 20230065662
    Abstract: A system for detecting a fault in electric power conversion equipment having an input stage and an output stage includes an output voltage sensor positioned within the output stage and configured to generate an output voltage signal; an input current sensor positioned at the input stage and configured to generate an input current signal; and a processor configured to analyze the output voltage signal and the input current signal to determine an occurrence of the fault in the electric power conversion equipment.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 2, 2023
    Applicant: GOODRICH CORPORATION
    Inventors: Scott Harms, Rodrigo Fernandez-Mattos, Mohamed J. Abdille, Leeroy Paskell
  • Publication number: 20230031640
    Abstract: Examples relate to devices, systems, and methods for fluid collection such as urine. The urine collection device includes a fluid impermeable barrier and a fluid permeable body. The fluid impermeable barrier at least partially defines a chamber. The fluid impermeable barrier includes at least one elongated portion having a first width and distal to the aperture and a second portion having a second width greater than the first width. The second portion at least partially defines an opening in the fluid impermeable barrier, and the opening has a maximum lateral dimension greater than the first width of the elongated portion. The fluid permeable body is configured to wick fluid away from the opening into the at least one elongated portion.
    Type: Application
    Filed: December 30, 2020
    Publication date: February 2, 2023
    Inventors: James David Hughett, Sr., Rodrigo Fernandez, Melissa Young Joyner, Wanfei Yang, Larry Dean Alder, Kuilin Lai, Nathaniel Barnes
  • Publication number: 20230027564
    Abstract: A system for controlling one or more loads. The system comprises a plurality of power converters, wherein each power converter is configured to be arranged in a parallel configuration with one or more additional power converters so as to control the one or more loads, and a central controller configured to output a common reference based on local current or voltage values received from each power converter; and transmit the common reference to each of the power converters. Each power converter comprises an inverter configured to control the one or more loads based on voltage switching signals, a module configured to provide the voltage switching signals to the inverter according to a modulation scheme.
    Type: Application
    Filed: June 15, 2022
    Publication date: January 26, 2023
    Inventors: Diarmaid John HOGAN, Andrei DINU, Rodrigo FERNANDEZ-MATTOS
  • Publication number: 20220409421
    Abstract: Examples relate to devices, systems, and methods for fluid collection such as urine. The fluid collection device a urine collection device, a first conduit, a urine collection bag having an interior region, a second conduit, and a modular pump. The urine collection device is configured to be positioned proximate to a urethra of a user. The first conduit is in fluid communication with the fluid collection device. The second conduit is in fluid communication with the interior region of the urine collection bag. The modular pump is configured to pull a vacuum and draw urine from the urine collection device through the first conduit and force the urine through the second conduit into the urine collection bag.
    Type: Application
    Filed: November 20, 2020
    Publication date: December 29, 2022
    Inventors: James David Hughett, Kyle Daw, Hannah Hinesley, Rodrigo Fernandez, Ginger Hiett, Caitlin Bowles, Juan Alejandro Saavedra Cisneros, Henri Madigan, Hassana Salifu, Ping Huang, Jingkuang Chen
  • Publication number: 20220399806
    Abstract: A power factor correction circuit comprising: a global voltage input; and means for deriving a reference current from the global voltage; whereby the means for deriving the reference current comprises a leading phase admittance cancellation, LPAC, transfer function and a filter, whereby the reference current is derived from a sum of an output of the LPAC transfer function and an output of the filter.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 15, 2022
    Inventors: Ignacio Castro, Ponggorn Kulsangcharoen, Rodrigo Fernandez-Mattos