Patents by Inventor Christophe Curis

Christophe Curis 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).

  • Comparator-less pulse-width modulation
    Patent number: 8872594
    Abstract: A pulse width modulation device includes a switching transistor for defining modulation phases, a capacitor, and switches arranged to: a) in a first phase, charge the capacitor to a voltage corresponding to the on/off threshold of the switching transistor, and b) in a second phase, connect the capacitor between a terminal for applying a setpoint voltage and the gate of the switching transistor. A constant current source is connected to apply a current in the capacitor tending to bring the gate of the switching transistor toward the on/off threshold.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: October 28, 2014
    Assignees: STMicroelectronics SA, STMicoelectronics (Grenoble 2) SAS
    Inventors: Marc Sabut, Severin Trochut, Christophe Curis
  • COMPARATOR-LESS PULSE-WIDTH MODULATION
    Publication number: 20130002366
    Abstract: A pulse width modulation device includes a switching transistor for defining modulation phases, a capacitor, and switches arranged to: a) in a first phase, charge the capacitor to a voltage corresponding to the on/off threshold of the switching transistor, and b) in a second phase, connect the capacitor between a terminal for applying a setpoint voltage and the gate of the switching transistor. A constant current source is connected to apply a current in the capacitor tending to bring the gate of the switching transistor toward the on/off threshold.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics SA
    Inventors: Marc Sabut, Severin Trochut, Christophe Curis