Patents by Inventor Andrea Villot

Andrea Villot 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).

  • Method to recover from current loop instability after cycle by cycle current limit intervention in peak current mode control
    Patent number: 10312811
    Abstract: A method detects current-limit events indicating a maximum current threshold of a switching converter has been reached, A compensation voltage is adjusted in response to the detected current-limit events, where the compensation voltage defines a duty cycle of the switching converter. A time for which no current-limit events have been detected is sensed, and the value of the compensation voltage adjusted in response to the detected time reaching a time step threshold.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: June 4, 2019
    Assignee: STMicroelectronics S.r.l.
    Inventors: Andrea Villot, Enrico Papa, Silvio Pepino
  • METHOD TO RECOVER FROM CURRENT LOOP INSTABILITY AFTER CYCLE BY CYCLE CURRENT LIMIT INTERVENTION IN PEAK CURRENT MODE CONTROL
    Publication number: 20190074766
    Abstract: A method detects current-limit events indicating a maximum current threshold of a switching converter has been reached, A compensation voltage is adjusted in response to the detected current-limit events, where the compensation voltage defines a duty cycle of the switching converter. A time for which no current-limit events have been detected is sensed, and the value of the compensation voltage adjusted in response to the detected time reaching a time step threshold.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 7, 2019
    Inventors: Andrea Villot, Enrico Papa, Silvio Pepino
  • Method to recover from current loop instability after cycle by cycle current limit intervention in peak current mode control
    Patent number: 10122277
    Abstract: A method of controlling a switching regulator includes detecting current-limit events indicating a maximum current threshold has been exceeded. A compensation voltage is adjusted in response to the detected current-limit events, where the compensation voltage defines a duty cycle of the switching regulator. A time is detected for which no current-limit events have been detected and the value of the compensation voltage is adjusted to increase the duty cycle of the switching regulator in response to the detected time exceeding a time step threshold.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 6, 2018
    Assignee: STMicroelectronics S.r.l.
    Inventors: Andrea Villot, Enrico Papa, Silvio Pepino
  • METHOD TO RECOVER FROM CURRENT LOOP INSTABILITY AFTER CYCLE BY CYCLE CURRENT LIMIT INTERVENTION IN PEAK CURRENT MODE CONTROL
    Publication number: 20180083536
    Abstract: A method of controlling a switching regulator includes detecting current-limit events indicating a maximum current threshold has been exceeded. A compensation voltage is adjusted in response to the detected current-limit events, where the compensation voltage defines a duty cycle of the switching regulator. A time is detected for which no current-limit events have been detected and the value of the compensation voltage is adjusted to increase the duty cycle of the switching regulator in response to the detected time exceeding a time step threshold.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Inventors: Andrea Villot, Enrico Papa, Silvio Pepino
  • Method to recover from current loop instability after cycle by cycle current limit intervention in peak current mode control
    Patent number: 9837903
    Abstract: A method of controlling a switching voltage regulator includes detecting current-limit events indicating a maximum inductor current threshold has been exceeded. A compensation voltage that determines a duty cycle and thereby an inductor current is controlled to reduce the inductor current and eliminate the occurrence of current-limit events. The method detects whether a time for which no current-limit events have been detected exceeds a time step threshold. The compensation voltage is controlled to increase the duty cycle and thereby the inductor current in response to the time exceeding the time step threshold. The time step threshold may be an integer number of switching cycles of the voltage regulator.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: December 5, 2017
    Assignee: STMicroelectronics S.r.l.
    Inventors: Andrea Villot, Enrico Papa, Silvio Pepino
  • METHOD TO RECOVER FROM CURRENT LOOP INSTABILITY AFTER CYCLE BY CYCLE CURRENT LIMIT INTERVENTION IN PEAK CURRENT MODE CONTROL
    Publication number: 20170194858
    Abstract: A method of controlling a switching voltage regulator includes detecting current-limit events indicating a maximum inductor current threshold has been exceeded. A compensation voltage that determines a duty cycle and thereby an inductor current is controlled to reduce the inductor current and eliminate the occurrence of current-limit events. The method detects whether a time for which no current-limit events have been detected exceeds a time step threshold. The compensation voltage is controlled to increase the duty cycle and thereby the inductor current in response to the time exceeding the time step threshold. The time step threshold may be an integer number of switching cycles of the voltage regulator.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Andrea Villot, Enrico Papa, Silvio Pepino