Patents by Inventor Francoise Vareilhias

Francoise Vareilhias 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).

  • Power switching apparatus with overload protection
    Patent number: 7808757
    Abstract: Power supply apparatus with overload protection comprising a switch responsive to an input signal for switching between an ON-state for supplying current from a source of power to a load and an OFF-state for interrupting the supply of current to the load, and protection means responsive to an overload condition to switch the switch to the OFF-state. The protection means is responsive to a first overload condition during an initial phase after the switch switches to the ON-state so as to switch the switch back to the OFF-state and maintain the switch in the OFF-state. The protection means is subsequently responsive to a second overload condition if the first overload condition is not detected during the initial phase so as to switch the switch to the OFF-state and subsequently switch the switch back to the ON-state after an interval of time.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: October 5, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Laurent Guillott, Philippe Rosado, Pierre Turpin, Francoise Vareilhias, Uli Joos, Josef Schnell
  • Power Switching Apparatus With Overload Protection
    Publication number: 20080055807
    Abstract: Power supply apparatus with overload protection comprising a switch responsive to an input signal for switching between an ON-state for supplying current from a source of power to a load and an OFF-state for interrupting the supply of current to the load, and protection means responsive to an overload condition to switch the switch to the OFF-state. The protection means is responsive to a first overload condition during an initial phase after the switch switches to the ON-state so as to switch the switch back to the OFF-state and maintain the switch in the OFF-state. The protection means is subsequently responsive to a second overload condition if the first overload condition is not detected during the initial phase so as to switch the switch to the OFF-state and subsequently switch the switch back to the ON-state after an interval of time.
    Type: Application
    Filed: September 28, 2004
    Publication date: March 6, 2008
    Applicant: Freescale Semiconductor Inc.
    Inventors: Laurent Guillot, Phillippe Rosado, Pierre Turpin, Francoise Vareilhias, Uli Joos, Josef Schnell
  • Electronic driver circuit with multiplexer for alternatively driving a load or a bus line, and method
    Patent number: 6353296
    Abstract: An electronic system (101/102) for use in a car has an electronic control unit (10) and, in the alternative, either a passive load (11) or an active logic (12) attached thereto. The control unit (10) comprises a push-pull arrangement (20) which can provide drive signals for the load (11) as well as for the logic (12), a multiplexer (45) to alternatively forward a load drive signal of a bus signal to the arrangement (20), and a register (90) to store a mode signal. Further, the control unit (10) automatically determines whether either the load (11) or the logic (12) is attached by analyzing electrical parameters.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: March 5, 2002
    Assignee: Motorola, Inc.
    Inventors: Will Specks, Markus Strecker, Ricardo Erckert, Francoise Vareilhias