Patents by Inventor Romain Pichon

Romain Pichon 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: 20240022242
    Abstract: A control device includes a triac and a first diode that is series-connected between the triac and a first terminal of the device that is configured to be connected to a cathode gate of a thyristor. A second terminal of the control device is configured to be connected to an anode of the thyristor. The triac has a gate connected to a third terminal of the device that is configured to receive a control signal. The thyristor is a component part of one or more of a rectifying bridge circuit, an in-rush current limiting circuit or a solid-state relay circuit.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 18, 2024
    Applicant: STMicroelectronics (Tours) SAS
    Inventors: Romain PICHON, Yannick HAGUE
  • Patent number: 11811395
    Abstract: A control device includes a triac and a first diode that is series-connected between the triac and a first terminal of the device that is configured to be connected to a cathode gate of a thyristor. A second terminal of the control device is configured to be connected to an anode of the thyristor. The triac has a gate connected to a third terminal of the device that is configured to receive a control signal. The thyristor is a component part of one or more of a rectifying bridge circuit, an in-rush current limiting circuit or a solid-state relay circuit.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: November 7, 2023
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: Romain Pichon, Yannick Hague
  • Publication number: 20220077850
    Abstract: A control device includes a triac and a first diode that is series-connected between the triac and a first terminal of the device that is configured to be connected to a cathode gate of a thyristor. A second terminal of the control device is configured to be connected to an anode of the thyristor. The triac has a gate connected to a third terminal of the device that is configured to receive a control signal. The thyristor is a component part of one or more of a rectifying bridge circuit, an in-rush current limiting circuit or a solid-state relay circuit.
    Type: Application
    Filed: September 3, 2021
    Publication date: March 10, 2022
    Applicant: STMicroelectronics (Tours) SAS
    Inventors: Romain PICHON, Yannick HAGUE
  • Patent number: 10916939
    Abstract: Transient overvoltage suppression is provided by discharging through a Metal Oxide Varistor (MOV) and Silicon Controlled Rectifier (SCR) which are connected in series between power supply lines. The SCR has a gate that receives a trigger signal generated by a triggering circuit coupled to the power supply lines. A trigger voltage of the triggering circuit is set by a Transilâ„¢ avalanche diode.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: February 9, 2021
    Assignees: STMicroelectronics (Tours) SAS, STMicroelectronics Asia Pacific Pte Ltd
    Inventors: Romain Pichon, Yannick Hague, Sean Choi
  • Patent number: 10659041
    Abstract: A circuit for controlling an anode-gate thyristor includes a first transistor that couples a thyristor gate to a first terminal to receive a potential lower than a potential of a second terminal connected to the thyristor anode. A control terminal of the first transistor is driven by a control signal which is positive with respect to the potential of the first terminal.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: May 19, 2020
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: Ghafour Benabdelaziz, Romain Pichon
  • Publication number: 20200106267
    Abstract: Transient overvoltage suppression is provided by discharging through a Metal Oxide Varistor (MOV) and Silicon Controlled Rectifier (SCR) which are connected in series between power supply lines. The SCR has a gate that receives a trigger signal generated by a triggering circuit coupled to the power supply lines. A trigger voltage of the triggering circuit is set by a Transilâ„¢ avalanche diode.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 2, 2020
    Applicants: STMicroelectronics (Tours) SAS, STMicroelectronics Asia Pacific Pte Ltd
    Inventors: Romain PICHON, Yannick HAGUE, Sean CHOI
  • Publication number: 20190214985
    Abstract: A circuit for controlling an anode-gate thyristor includes a first transistor that couples a thyristor gate to a first terminal to receive a potential lower than a potential of a second terminal connected to the thyristor anode. A control terminal of the first transistor is driven by a control signal which is positive with respect to the potential of the first terminal.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 11, 2019
    Applicant: STMicroelectronics (Tours) SAS
    Inventors: Ghafour BENABDELAZIZ, Romain PICHON
  • Patent number: 10014797
    Abstract: An AC/DC converter includes: a first terminal and a second terminal for receiving an AC voltage and a third terminal and a fourth terminal for supplying a DC voltage. A rectifying bridge includes input terminals respectively coupled to the first terminal and the second terminal, and output terminals respectively coupled to the third terminal and fourth terminal. A first branch of the rectifying bridge includes, connected between the output terminals, two series-connected thyristors with a junction point of the two thyristors being connected to a first one of the input terminals. A second branch of the rectifying bridge is formed by series connected diodes. A control circuit is configured to generate control signals for application to the control gates of the thyristors.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: July 3, 2018
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: Laurent Gonthier, Muriel Nina, Romain Pichon
  • Publication number: 20170324350
    Abstract: An AC/DC converter includes: a first terminal and a second terminal for receiving an AC voltage and a third terminal and a fourth terminal for supplying a DC voltage. A rectifying bridge includes input terminals respectively coupled to the first terminal and the second terminal, and output terminals respectively coupled to the third terminal and fourth terminal. A first branch of the rectifying bridge includes, connected between the output terminals, two series-connected thyristors with a junction point of the two thyristors being connected to a first one of the input terminals. A second branch of the rectifying bridge is formed by series connected diodes. A control circuit is configured to generate control signals for application to the control gates of the thyristors.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 9, 2017
    Applicant: STMicroelectronics (Tours) SAS
    Inventors: Laurent Gonthier, Muriel Nina, Romain Pichon
  • Patent number: 9755541
    Abstract: An AC/DC converter includes: a first terminal and a second terminal for receiving an AC voltage and a third terminal and a fourth terminal for supplying a DC voltage. A rectifying bridge includes input terminals respectively coupled to the first terminal and the second terminal, and output terminals respectively coupled to the third terminal and fourth terminal. A first branch of the rectifying bridge includes, connected between the output terminals, two series-connected thyristors with a junction point of the two thyristors being connected to a first one of the input terminals. A second branch of the rectifying bridge is formed by series connected diodes. A control circuit is configured to generate control signals for application to the control gates of the thyristors.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: September 5, 2017
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: Laurent Gonthier, Muriel Nina, Romain Pichon
  • Publication number: 20160301326
    Abstract: An AC/DC converter includes: a first terminal and a second terminal for receiving an AC voltage and a third terminal and a fourth terminal for supplying a DC voltage. A rectifying bridge includes input terminals respectively coupled to the first terminal and the second terminal, and output terminals respectively coupled to the third terminal and fourth terminal. A first branch of the rectifying bridge includes, connected between the output terminals, two series-connected thyristors with a junction point of the two thyristors being connected to a first one of the input terminals. A second branch of the rectifying bridge is formed by series connected diodes. A control circuit is configured to generate control signals for application to the control gates of the thyristors.
    Type: Application
    Filed: December 2, 2015
    Publication date: October 13, 2016
    Applicant: STMicroelectronics (Tours) SAS
    Inventors: Laurent Gonthier, Muriel Nina, Romain Pichon