Patents by Inventor Frederic Richardeau

Frederic Richardeau 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: 10199376
    Abstract: A cell includes at least two semiconductor structures of the same nature, these two structures both employing voltages and currents that are unidirectional, each structure having an anode (10), a cathode (14) and optionally a gate (16). The structures are integrated into the volume of one and the same semiconductor substrate (4). The cathodes (14), and possibly the gates (16), are arranged on a first side of the semiconductor substrate (4). The anodes (10) are each arranged on a second side of the semiconductor substrate (4), which side is opposite the first side, facing the cathodes and possibly the corresponding gates. Two electrodes, anodes or cathodes, of two separate structures, are electrically connected to each other.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: February 5, 2019
    Assignees: Centre National de la Recherche Scientifique (CNRS), Institut National Polytechnique de Toulouse (I.N.P.T.)
    Inventors: Abdelhakim Bourennane, Marie Breil-Dupuy, Frederic Richardeau, Jean-Louis Sanchez
  • Patent number: 9442023
    Abstract: An electronic temperature sensor for measuring the junction temperature of an electronic power switch (4) of a static converter (8) includes an injection source of a calibrated measurement current (20) and a differential voltage measurement amplifier (76; 276). The electronic temperature sensor includes a first series connection (26) element and a second series connection (28) connected respectively to the inlet terminals (78, 80) of the differential voltage amplifier (76; 276). The first and second series connection elements (26, 28; 224, 226) are configured to protect the amplifier against a high voltage, have essentially identical electrical characteristics and are included in the set formed by resistances and high-voltage (HV) rapid diodes.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: September 13, 2016
    Assignees: TECHNOFAN, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
    Inventors: Pascal Rollin, Frederic Richardeau, Matthieu Morvan, Franck Mosser
  • Publication number: 20150377717
    Abstract: An electronic temperature sensor for measuring the junction temperature of an electronic power switch (4) of a static converter (8) includes an injection source of a calibrated measurement current (20) and a differential voltage measurement amplifier (76; 276). The electronic temperature sensor includes a first series connection (26) element and a second series connection (28) connected respectively to the inlet terminals (78, 80) of the differential voltage amplifier (76; 276). The first and second series connection elements (26, 28; 224, 226) are configured to protect the amplifier against a high voltage, have essentially identical electrical characteristics and are included in the set formed by resistances and high-voltage (HV) rapid diodes.
    Type: Application
    Filed: February 21, 2014
    Publication date: December 31, 2015
    Inventors: Pascal ROLLIN, Frederic RICHARDEAU, Matthieu MORVAN, Franck MOSSER
  • Publication number: 20140299916
    Abstract: A cell includes at least two semiconductor structures of the same nature, these two structures both employing voltages and currents that are unidirectional, each structure having an anode (10), a cathode (14) and optionally a gate (16). The structures are integrated into the volume of one and the same semiconductor substrate (4). The cathodes (14), and possibly the gates (16), are arranged on a first side of the semiconductor substrate (4). The anodes (10) are each arranged on a second side of the semiconductor substrate (4), which side is opposite the first side, facing the cathodes and possibly the corresponding gates. Two electrodes, anodes or cathodes, of two separate structures, are electrically connected to each other.
    Type: Application
    Filed: October 9, 2012
    Publication date: October 9, 2014
    Applicant: Centre National de la Recherche Scientifique (CNRS
    Inventors: Abdelhakim Bourennane, Marie Breil-Dupuy, Frederic Richardeau, Jean-Louis Sanchez
  • Patent number: 8467206
    Abstract: A power rectifying circuit for an electric current signal supplied by an alternating power source, which includes: two separate switching assemblies adapted to be connected to a power terminal of the source, wherein at least one switching assembly includes a plurality of boost cells in cascade, each boost cell including a diode, a switch mechanism and a capacitor, the capacitors of the two terminal boost cells of the switching assemblies having one terminal in common. The circuit may include two assemblies of boost cells, and can be used in electric systems onboard aircrafts.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 18, 2013
    Assignees: Airbus Operations S.A.S., Centre National de la Recherche Scientifique, Institut National Polytechnique de Toulouse
    Inventors: Marcelo Fernando Iturriz, Frederic Richardeau, Thierry Meynard, Hassan Helali
  • Publication number: 20110002148
    Abstract: A power rectifying circuit for an electric current signal supplied by an alternating power source, which includes: two separate switching assemblies adapted to be connected to a power terminal of the source, wherein at least one switching assembly includes a plurality of boost cells in cascade, each boost cell including a diode, a switch mechanism and a capacitor, the capacitors of the two terminal boost cells of the switching assemblies having one terminal in common. The circuit may include two assemblies of boost cells, and can be used in electric systems onboard aircrafts.
    Type: Application
    Filed: January 21, 2009
    Publication date: January 6, 2011
    Applicants: AIRBUS OPERATIONS (SAS), CENTRE NATIONAL DE LA RECHERCHE SCIENT. (CNRS), INSTITUT NAT. POLYTECHNIQUE DE TOULOUSE (I.N.P.T.)
    Inventors: Marcelo Fernando Iturriz, Frederic Richardeau, Thierry Meynard, Hassan Helali
  • Patent number: 7847535
    Abstract: The invention relates to a method for supply to a magnetic coupler comprising several pairs of windings, each pair being formed from a first and a second adjacent paired winding, magnetically coupled to each other by means of a core of magnetic material. The method further consists of supplying the first winding of each pair with a supply voltage or current out of phase by an angle a with relation to the supply voltage or current for the second winding of the same pair. The absolute value of the angle a is greater than or equal to 4p/N for at least one pair of windings.
    Type: Grant
    Filed: July 4, 2006
    Date of Patent: December 7, 2010
    Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Institut National Polytechnique de Toulouse, Universite Montpellier II
    Inventors: Thierry Antoine Meynard, Francois Forest, Frederic Richardeau, Eric Laboure
  • Publication number: 20080218150
    Abstract: The invention relates to a method for supply to a magnetic coupler comprising several pairs of windings, each pair being formed from a first and a second adjacent paired winding, magnetically coupled to each other by means of a core of magnetic material. The method further consists of supplying (in 34) the first winding of each pair with a supply voltage or current out of phase by an angle a with relation to the supply voltage or current for the second winding of the same pair. The absolute value of the angle a is greater than or equal to 4p/N for at least one pair of windings.
    Type: Application
    Filed: July 4, 2006
    Publication date: September 11, 2008
    Applicants: Centre National De La Recherche Scientifique (C.N.R.S.), Institut National Polytechnique De Toulouse, Universite Montpellier 11
    Inventors: Thierry Antoine Meynard, Francois Forest, Frederic Richardeau, Eric Laboure
  • Publication number: 20070086226
    Abstract: Voltage inverter provided with four switching cells (Q1 to Q4) to be connected to the terminals of a DC voltage source (Vdc), each comprising two semiconductor switches (I11, I12, I21, I22, I31, I32, I41, I42) installed in series, these switches having a common point (A0) to be connected to an AC current source (Mac) with three phases (p1, p2, p3) and a neutral (n), the connection being made onto one phase (p1, p2, p3) for three of the cells (Q1, Q2, Q3) and onto the neutral (n) for the fourth cell (Q4). Each cell (Q1 to Q4) cooperates with a semiconductor electrical isolating device (S1, (S2.1 and S2.2)) to be put into a turn-off state if the cell should fail, this isolating device (S1, (S2.1 and S2.2)) being arranged either on the connection to the AC current source (Mac), or on connections to the terminals of the DC voltage source (Vdc).
    Type: Application
    Filed: October 5, 2006
    Publication date: April 19, 2007
    Applicants: Airbus France, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Institut National Polytechnique de Toulouse
    Inventors: Jerome Mavier, Frederic Richardeau, Hubert Piquet
  • Publication number: 20050237038
    Abstract: A static electrical energy converter modulates the electrical energy exchanged between at least two electrical sources. The converter includes at least one electrical voltage source, one current source and at least one electrical switching stage, each switching stage having at least two static switches (k1) star-connected to the voltage source or voltage sources, with the common point of the star connected to the current source, and the current source being connected back to the voltage source or sources. At least one of the static switches (k1) of at least one switching stage is a switch provided with two output electrodes, of which at least one change of state (providing switching at the opening or at the closing) is automatic and is operated exclusively at a predefined voltage threshold other than zero when the absolute value of the voltage increases.
    Type: Application
    Filed: February 5, 2003
    Publication date: October 27, 2005
    Inventors: Frederic Richardeau, Henri Foch