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).
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Patent number: 10199376Abstract: 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: GrantFiled: October 9, 2012Date of Patent: February 5, 2019Assignees: 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
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Patent number: 9442023Abstract: 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: GrantFiled: February 21, 2014Date of Patent: September 13, 2016Assignees: 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
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Publication number: 20150377717Abstract: 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: ApplicationFiled: February 21, 2014Publication date: December 31, 2015Inventors: Pascal ROLLIN, Frederic RICHARDEAU, Matthieu MORVAN, Franck MOSSER
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Patent number: 9184585Abstract: The invention relates to a static converter connected between an electrical voltage source and an electrical load, said converter including a main static conversion arm comprising an output electronic switching cell and a backup conversion arm having identical structures. The static converter includes a pair of fuses connected on either side of the main arm, and a switching circuit comprising a connection element connecting the backup arm to the connection points between the fuses and the input terminals of the main arm, such that, when a fault occurs on one of the switching cells forming the main arm, a stable conductive link is established between the two fuses, the main arm is isolated by the two fuses, and the backup arm is spontaneously connected to the output of the main arm via the conductive line and replaces the main arm.Type: GrantFiled: June 24, 2011Date of Patent: November 10, 2015Assignees: Institut National Polytechnique de Toulouse, Universite de Toulouse II Le Mirail, Universite Montpellier 2, Sciences et Techniques, Centre National de la Recherche Scientifique (C.N.R.S.)Inventors: Jean-Jacques Huselstein, Emmanuel Sarraute, Frédéric Richardeau, Thierry Martire
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Publication number: 20140299916Abstract: 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: ApplicationFiled: October 9, 2012Publication date: October 9, 2014Applicant: Centre National de la Recherche Scientifique (CNRSInventors: Abdelhakim Bourennane, Marie Breil-Dupuy, Frederic Richardeau, Jean-Louis Sanchez
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Publication number: 20130194840Abstract: The invention relates to a static converter connected between an electrical voltage source (4) and an electrical load (6), said converter including a main static conversion arm (16) comprising an output electronic switching cell and a backup conversion arm (18) having identical structures. The static converter includes a pair of fuses (70, 72) connected on either side of the main arm (16), and a switching circuit (26) comprising a connection element (80) connecting the backup arm (18) to the connection points between the fuses and the input terminals of the main arm, such that, when a fault occurs on one of the switching cells forming the main arm (16), a stable conductive link is established between the two fuses (70, 72), the main arm (16) is isolated by the two fuses (70, 72), and the backup arm (18) is spontaneously connected to the output of the main arm (18) via the conductive line and replaces the main arm.Type: ApplicationFiled: June 24, 2011Publication date: August 1, 2013Applicants: INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE, UNIVERSITE MONTPELLIER 2, SCIENCES ET TECHNIQUES, UNIVERSITE DE TOULOUSE II LE MIRAILInventors: Jean-Jacques Huselstein, Emmanuel Sarraute, Frédéric Richardeau, Thierry Martire
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Patent number: 8467206Abstract: 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: GrantFiled: January 21, 2009Date of Patent: June 18, 2013Assignees: Airbus Operations S.A.S., Centre National de la Recherche Scientifique, Institut National Polytechnique de ToulouseInventors: Marcelo Fernando Iturriz, Frederic Richardeau, Thierry Meynard, Hassan Helali
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Publication number: 20110002148Abstract: 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: ApplicationFiled: January 21, 2009Publication date: January 6, 2011Applicants: 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
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Patent number: 7847535Abstract: 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: GrantFiled: July 4, 2006Date of Patent: December 7, 2010Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Institut National Polytechnique de Toulouse, Universite Montpellier IIInventors: Thierry Antoine Meynard, Francois Forest, Frederic Richardeau, Eric Laboure
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Patent number: 7436686Abstract: 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: GrantFiled: October 5, 2006Date of Patent: October 14, 2008Assignees: Airbus France, Centre National de la Recherche Scientifique, Institut National Polytechnique de ToulouseInventors: Jérôme Mavier, Frédéric Richardeau, Hubert Piquet
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Publication number: 20080218150Abstract: 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: ApplicationFiled: July 4, 2006Publication date: September 11, 2008Applicants: Centre National De La Recherche Scientifique (C.N.R.S.), Institut National Polytechnique De Toulouse, Universite Montpellier 11Inventors: Thierry Antoine Meynard, Francois Forest, Frederic Richardeau, Eric Laboure
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Publication number: 20070086226Abstract: 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: ApplicationFiled: October 5, 2006Publication date: April 19, 2007Applicants: Airbus France, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Institut National Polytechnique de ToulouseInventors: Jerome Mavier, Frederic Richardeau, Hubert Piquet
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Patent number: 7061216Abstract: 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: GrantFiled: February 5, 2003Date of Patent: June 13, 2006Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)Inventors: Frédéric Richardeau, Henri Foch
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Publication number: 20050237038Abstract: 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: ApplicationFiled: February 5, 2003Publication date: October 27, 2005Inventors: Frederic Richardeau, Henri Foch