Patents by Inventor Stefano Orlandi

Stefano Orlandi 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: 10784780
    Abstract: A controller circuit for generating a Pulse-Width Modulation (PWM) signal for activating a switching device of a Switched-Mode Power Supply (SMPS) includes gap detection circuitry, Pulse Frequency Modulated (PFM) circuitry, PWM circuitry and logic circuitry. The gap detection circuitry is configured to generate a shift signal based on an indication of a voltage difference between a reference voltage and a feedback voltage corresponding to voltage output by the SMPS. The PFM circuitry is configured to generate a hold signal indicating a target PFM frequency for the PWM signal. The PWM circuitry is configured to shift, based on the shift signal, a pedestal current to generate a shifted pedestal current and to generate, based on the shifted pedestal current, a peak signal indicating a target PWM on time for the PWM signal.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: September 22, 2020
    Assignee: Infineon Technologies AG
    Inventors: Luca Scandola, Stefano Orlandi, Cristian Garbossa
  • Patent number: 10730163
    Abstract: An abrasive fluid jet cutting device is disclosed comprising a rotating joint that includes a first path for abrasive and a second path for fluid, a mixing chamber where the first and second paths meet, a first expanding volume arranged above the first path to accumulate abrasive, and a second expanding volume arranged below the first path to accumulate abrasive between the first volume and the mixing chamber, in which the second volume forms a barrier against the return flow of humidity along the first path.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: August 4, 2020
    Assignee: C.M.S. S.p.A.
    Inventors: Davide Orlandi, Stefano Benaglia, Giuseppe Pedrini
  • Patent number: 10666142
    Abstract: In accordance with one embodiment, a switching converter includes a switching circuit configured to receive a switching signal and to alternatingly connect an output node of the switching circuit with a supply node and a reference node in accordance with the switching signal. An input voltage is operably applied between the supply node and the reference node. The switching converter further includes an inductor coupled between the output node of the switching circuit and an output node of the switching converter as well as an oscillator configured to generate a clock signal with an oscillator frequency depending on the input voltage. A switching controller is configured to receive the clock signal and to generate the switching signal using pulse-width modulation (PWM), wherein the frequency of the switching signal is set in accordance with the oscillator frequency and a duty cycle of the switching signal is deter-mined using current-mode control.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 26, 2020
    Assignee: Infineon Technologies AG
    Inventors: Marco Vanin, Cristian Garbossa, Stefano Orlandi, Winand Van Sloten
  • Patent number: 10601318
    Abstract: In accordance with an embodiment, a circuit includes a power conversion circuit including an inductor and configured to convert an input voltage to an output voltage in accordance with at least one switching signal. The circuit further includes a first current sense circuit configured to generate a current sense signal that represents an inductor current, a voltage sense circuit configured to generate a voltage sense signal that represents the output voltage, and a switching controller including an error amplifier configured to generate an error signal representing the difference between a reference voltage and the voltage sense signal. The switching controller further includes an oscillator circuit configured to generate, for pulse frequency modulation (PFM) operation of the power conversion circuit, the switching signal as a sequence of pulses with a pulse repetition frequency that depends on the error signal and the current sense signal.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: March 24, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Marco Flaibani, Stefano Orlandi
  • Publication number: 20190238054
    Abstract: In accordance with an embodiment, a circuit includes a power conversion circuit including an inductor and configured to convert an input voltage to an output voltage in accordance with at least one switching signal. The circuit further includes a first current sense circuit configured to generate a current sense signal that represents an inductor current, a voltage sense circuit configured to generate a voltage sense signal that represents the output voltage, and a switching controller including an error amplifier configured to generate an error signal representing the difference between a reference voltage and the voltage sense signal. The switching controller further includes an oscillator circuit configured to generate, for pulse frequency modulation (PFM) operation of the power conversion circuit, the switching signal as a sequence of pulses with a pulse repetition frequency that depends on the error signal and the current sense signal.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Inventors: Marco Flaibani, Stefano Orlandi
  • Publication number: 20190157975
    Abstract: In accordance with one embodiment, a switching converter includes a switching circuit configured to receive a switching signal and to alternatingly connect an output node of the switching circuit with a supply node and a reference node in accordance with the switching signal. An input voltage is operably applied between the supply node and the reference node. The switching converter further includes an inductor coupled between the output node of the switching circuit and an output node of the switching converter as well as an oscillator configured to generate a clock signal with an oscillator frequency depending on the input voltage. A switching controller is configured to receive the clock signal and to generate the switching signal using pulse-width modulation (PWM), wherein the frequency of the switching signal is set in accordance with the oscillator frequency and a duty cycle of the switching signal is deter-mined using current-mode control.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 23, 2019
    Inventors: Marco Vanin, Cristian Garbossa, Stefano Orlandi, Winand Van Sloten
  • Patent number: 10277111
    Abstract: According to an example, a step down converter includes switching circuit configured to control a switching output in order to generate an output voltage on a converter output within a specified range of a target voltage. The step down converter includes an inductor includes a first terminal and a second terminal, the first terminal coupled to the switching output, and a protection device coupled in series between the second terminal of the inductor and the converter output and including a control terminal. The protection device limits the output voltage supplied at the converter output based on a control voltage at the control terminal.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 30, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Cristina Chiereghin, Cristian Garbossa, Stefano Orlandi
  • Publication number: 20180342944
    Abstract: According to an example, a step down converter includes switching circuit configured to control a switching output in order to generate an output voltage on a converter output within a specified range of a target voltage. The step down converter includes an inductor includes a first terminal and a second terminal, the first terminal coupled to the switching output, and a protection device coupled in series between the second terminal of the inductor and the converter output and including a control terminal. The protection device limits the output voltage supplied at the converter output based on a control voltage at the control terminal.
    Type: Application
    Filed: May 24, 2017
    Publication date: November 29, 2018
    Inventors: Cristina Chiereghin, Cristian Garbossa, Stefano Orlandi
  • Patent number: 7959112
    Abstract: A system for detecting and classifying a wheel of a rail vehicle traveling on a railway track includes a plurality of wheel detectors coupled to one rail of the railway track and configured to detect presence of the wheel and to generate signals representative thereof. A processing system is coupled to the wheel detectors and configured to receive and process the signals. The processing system is configured to classify the wheel based on a speed independent classification value calculated based on the signals from the wheel detectors.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 14, 2011
    Assignee: Progress Rail Services Corp
    Inventors: Arvind Kumar Tiwari, Ramasamy Anbarasu, Ramesh Bhat, Somakumar Ramachandrapanicker, Vageesh Kubatoor Patil, Carlo Becheri, Stefano Orlandi, Fabio Biondi, Lorenzo Chiosi
  • Patent number: 7547988
    Abstract: A railway power supply system and method for electrically powering an electrical device are provided. The electrical device is situated along a railway and is powered through an electrically conductive line generally used for carrying an electrical signal to a railway signaling device. The power supply system includes a power injector coupled to the line. The line is used for carrying a signal to the signaling device at a first frequency value for performing a signaling operation. The power injector is configured to introduce at the line a power signal for powering the electrical device. The injected power is at a second frequency value that is sufficiently spread apart from the first frequency value to avoid interference with the signaling operation of the railway signaling device. The power supply system further includes a power collector coupled to the line and to the electrical device for passing the signal for powering the electrical device.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: June 16, 2009
    Assignee: General Electric Company
    Inventor: Stefano Orlandi
  • Publication number: 20080149782
    Abstract: A system for detecting and classifying a wheel of a rail vehicle traveling on a railway track includes a plurality of wheel detectors coupled to one rail of the railway track and configured to detect presence of the wheel and to generate signals representative thereof. A processing system is coupled to the wheel detectors and configured to receive and process the signals. The processing system is configured to classify the wheel based on a speed independent classification value calculated based on the signals from the wheel detectors.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Inventors: Arvind Kumar Tiwari, Ramasamy Anbarasu, Ramesh Bhat, Somakumar Ramachandrapanicker, Vageesh Kubatoor Patil, Carlo Becheri, Stefano Orlandi, Fabio Biondi, Lorenzo Chiosi
  • Publication number: 20060214067
    Abstract: A railway power supply system and method for electrically powering an electrical device are provided. The electrical device is situated along a railway and is powered through an electrically conductive line generally used for carrying an electrical signal to a railway signaling device. The power supply system includes a power injector coupled to the line. The line is used for carrying a signal to the signaling device at a first frequency value for performing a signaling operation. The power injector is configured to introduce at the line a power signal for powering the electrical device. The injected power is at a second frequency value that is sufficiently spread apart from the first frequency value to avoid interference with the signaling operation of the railway signaling device. The power supply system further includes a power collector coupled to the line and to the electrical device for passing the signal for powering the electrical device.
    Type: Application
    Filed: February 8, 2006
    Publication date: September 28, 2006
    Inventor: Stefano Orlandi