Patents by Inventor Roberto Marcelo Schupbach
Roberto Marcelo Schupbach 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: 9435819Abstract: A turbine environment wireless transmitter for monitoring bearing health inside jet turbines. This transmitter has the ability to operate in 225 to 300 degree Celsius environments and monitor real time bearing temperature and vibration and transmit that data to a centralized system for processing. The system is powered by a built in thermal electric generator, which produces power in response to a thermal gradient across it. The information transmitted is used to monitor and diagnose a bearing operating parameters in real-time and predict a failure event before any damage occurs.Type: GrantFiled: April 29, 2013Date of Patent: September 6, 2016Assignee: Cree Fayetteville, Inc.Inventors: John Fraley, Bryon Western, Roberto Marcelo Schupbach
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Patent number: 8952674Abstract: A voltage regulator circuitry (50) adapted to operate in a high-temperature environment of a turbine engine is provided. The voltage regulator may include a constant current source (52) including a first semiconductor switch (54) and a first resistor (56) connected between a gate terminal (G) and a source terminal (S) of the first semiconductor switch. A second resistor (58) is connected to the gate terminal of the first semiconductor switch (54) and to an electrical ground (64). The constant current source is coupled to generate a voltage reference across the second resistor 58. A source follower output stage 66 may include a second semiconductor switch (68) and a third resistor (58) connected between the electrical ground and a source terminal of the second semiconductor switch. The generated voltage reference is applied to a gating terminal of the second semiconductor switch (58).Type: GrantFiled: June 29, 2012Date of Patent: February 10, 2015Assignees: Siemens Energy, Inc., Arkansas Power Electronics International, Inc.Inventors: David J. Mitchell, John R. Fraley, Jie Yang, Cora Schillig, Bryon Western, Roberto Marcelo Schupbach
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Patent number: 8803703Abstract: A circuitry adapted to operate in a high-temperature environment of a turbine engine is provided. A relatively high-gain differential amplifier (102) may have an input terminal coupled to receive a voltage indicative of a sensed parameter of a component (20) of the turbine engine. A hybrid load circuitry may be coupled to the differential amplifier. A voltage regulator circuitry (244) may be coupled to power the differential amplifier. The differential amplifier, the hybrid load circuitry and the voltage regulator circuitry may each be disposed in the high-temperature environment of the turbine engine.Type: GrantFiled: July 12, 2012Date of Patent: August 12, 2014Assignees: Siemens Energy, Inc., Arkansas Power Electronics International, Inc.Inventors: David J. Mitchell, John R. Fraley, Jie Yang, Cora Schillig, Bryon Western, Roberto Marcelo Schupbach
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Patent number: 8766720Abstract: A circuitry (120) adapted to operate in a high-temperature environment of a turbine engine is provided. The circuitry may include a differential amplifier (122) having an input terminal (124) coupled to a sensing element to receive a voltage indicative of a sensed parameter. A hybrid load circuitry (125) may be AC-coupled to the differential amplifier. The hybrid load circuitry may include a resistor-capacitor circuit (134) arranged to provide a path to an AC signal component with respect to the drain terminal of the switch (e.g., 126) of a differential pair of semiconductor switches 126, 128, which receives the voltage indicative of the sensed parameter.Type: GrantFiled: June 29, 2012Date of Patent: July 1, 2014Assignee: Siemens Energy, Inc.Inventors: David J. Mitchell, John R. Fraley, Jie Yang, Cora Schillig, Roberto Marcelo Schupbach, Bryon Western
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Patent number: 8717095Abstract: Chopper circuitry may be adapted to operate in a high-temperature environment of a turbine. A first semiconductor switch (122) may have a first terminal coupled to receive a first output signal from a first leg (148) of a differential amplifier (150). A second switch (128) may have a first terminal coupled thru a first resistive element (R1) to a second terminal of the first semiconductor switch. The first terminal of the second semiconductor switch may be coupled to receive thru a second resistive element (R2) a second output signal from a second leg (152) of the amplifier. Switches (122,128) may be responsive to a switching control signal to respective gate terminals of the switches to supply an output signal, which alternates in correspondence with a frequency of the switching control signal from a first amplitude level to a second amplitude level, which effectively provides a doubling amplification factor.Type: GrantFiled: July 9, 2012Date of Patent: May 6, 2014Assignee: Siemens Energy, Inc.Inventors: David J. Mitchell, Jie Yang, Roberto Marcelo Schupbach, John R. Fraley, Cora Schillig, Bryon Western
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Patent number: 8643407Abstract: A half bridge gate driving circuit for providing gate driving circuits in a bi-hecto celcius (200 degrees celcius) operating environment having multiple functions including combinations of multiple level logic inputs, noise immunity, fault protection, overlap protection, pulse modulation, high-frequency modulation with transformer based isolation, high-frequency demodulation back to pulse width modulation, deadtime generator, level shifter for high side transistor, overcurrent protection, and undervoltage lockout.Type: GrantFiled: June 22, 2012Date of Patent: February 4, 2014Inventors: Brad Alan Reese, Javier Antonio Valle-Mayorga, Ivonne Escorcia-Carranza, Khoa Minh Phan, Caleb Paul Gutshall, Roberto Marcelo Schupbach
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Publication number: 20140009222Abstract: Chopper circuitry may be adapted to operate in a high-temperature environment of a turbine. A first semiconductor switch (122) may have a first terminal coupled to receive a first output signal from a first leg (148) of a differential amplifier (150). A second switch (128) may have a first terminal coupled thru a first resistive element (R1) to a second terminal of the first semiconductor switch. The first terminal of the second semiconductor switch may be coupled to receive thru a second resistive element (R2) a second output signal from a second leg (152) of the amplifier. Switches (122,128) may be responsive to a switching control signal to respective gate terminals of the switches to supply an output signal, which alternates in correspondence with a frequency of the switching control signal from a first amplitude level to a second amplitude level, which effectively provides a doubling amplification factor.Type: ApplicationFiled: July 9, 2012Publication date: January 9, 2014Inventors: David J. Mitchell, Jie Yang, Roberto Marcelo Schupbach, John R. Fraley, Cora Schillig, Bryon Western
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Publication number: 20140002050Abstract: A voltage regulator circuitry (50) adapted to operate in a high-temperature environment of a turbine engine is provided. The voltage regulator may include a constant current source (52) including a first semiconductor switch (54) and a first resistor (56) connected between a gate terminal (G) and a source terminal (S) of the first semiconductor switch. A second resistor (58) is connected to the gate terminal of the first semiconductor switch (54) and to an electrical ground (64). The constant current source is coupled to generate a voltage reference across the second resistor 58. A source follower output stage 66 may include a second semiconductor switch (68) and a third resistor (58) connected between the electrical ground and a source terminal of the second semiconductor switch. The generated voltage reference is applied to a gating terminal of the second semiconductor switch (58).Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Inventors: David J. Mitchell, John R. Fraley, Jie Yang, Cora Schillig, Bryon Western, Roberto Marcelo Schupbach
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Publication number: 20140002191Abstract: A circuitry (120) adapted to operate in a high-temperature environment of a turbine engine is provided. The circuitry may include a differential amplifier (122) having an input terminal (124) coupled to a sensing element to receive a voltage indicative of a sensed parameter. A hybrid load circuitry (125) may be AC-coupled to the differential amplifier. The hybrid load circuitry may include a resistor-capacitor circuit (134) arranged to provide a path to an AC signal component with respect to the drain terminal of the switch (e.g., 126) of a differential pair of semiconductor switches 126, 128, which receives the voltage indicative of the sensed parameter.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Inventors: David J. Mitchell, John R. Fraley, Jie Yang, Cora Schillig, Roberto Marcelo Schupbach, Bryon Western
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Publication number: 20130009674Abstract: A half bridge gate driving circuit for providing gate driving circuits in a bi-hecto celcius (200 degrees celcius) operating environment having multiple functions including combinations of multiple level logic inputs, noise immunity, fault protection, overlap protection, pulse modulation, high-frequency modulation with transformer based isolation, high-frequency demodulation back to pulse width modulation, deadtime generator, level shifter for high side transistor, overcurrent protection, and undervoltage lockout.Type: ApplicationFiled: June 22, 2012Publication date: January 10, 2013Inventors: Brad Alan Reese, Javier Antonio Valle-Mayorga, Ivonne Escorcia-Carranza, Khoa Minh Phan, Caleb Paul Gutshall, Roberto Marcelo Schupbach
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Publication number: 20130002358Abstract: A circuitry adapted to operate in a high-temperature environment of a turbine engine is provided. A relatively high-gain differential amplifier (102) may have an input terminal coupled to receive a voltage indicative of a sensed parameter of a component (20) of the turbine engine. A hybrid load circuitry may be coupled to the differential amplifier. A voltage regulator circuitry (244) may be coupled to power the differential amplifier. The differential amplifier, the hybrid load circuitry and the voltage regulator circuitry may each be disposed in the high-temperature environment of the turbine engine.Type: ApplicationFiled: July 12, 2012Publication date: January 3, 2013Inventors: David J. Mitchell, John R. Fraley, Jie Yang, Cora Schillig, Bryon Western, Roberto Marcelo Schupbach
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Patent number: 7965522Abstract: High temperature gate driving circuits with improved noise resistance and minimized loss are implemented with high temperature components with a reduced size magnetic isolation transformer. Input broad-pulse width modulated signals are converted to offsetting narrow pulses to cross the reduced size magnetic transformer minimizing isolation losses. One embodiment teaches time and voltage offset narrow single pulses that control a set and reset regeneration of the pulse width output on the secondary side of the transformer. Another embodiment teaches multiple concurrent voltage offset pulses to cross the transformer and charge a threshold capacitor for both filtering noise and controlling the pulse width regeneration on the secondary side of the transformer.Type: GrantFiled: September 25, 2009Date of Patent: June 21, 2011Assignee: Arkansas Power Electronics International, Inc.Inventors: Jared Hornberger, Brad Reese, Edgar Cilio, Roberto Marcelo Schupbach, Alex Lostetter, Sharmila Mounce