Patents by Inventor Léo Sterna
Léo Sterna 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: 11799469Abstract: The present disclosure concerns a method and a circuit for controlling first and second switches electrically in series, wherein one or a plurality of crossings of a voltage threshold by a voltage across the first switch cause a conductive state of the second switch.Type: GrantFiled: September 15, 2021Date of Patent: October 24, 2023Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventors: Léo Sterna, Pierre Perichon
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Patent number: 11621648Abstract: The present disclosure concerns a circuit (302) for controlling two switches (210-1, 210-2) electrically in series, including sensors (310-1, 310-2) of voltages across the switches and a circuit (310) of comparison of signals output by said sensors, one at least of said sensors being an active circuit.Type: GrantFiled: December 11, 2020Date of Patent: April 4, 2023Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventors: Léo Sterna, Pierre Perichon
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Patent number: 11290017Abstract: A power converter comprises a primary stage including four switches forming a first H bridge; a control circuit capable of applying a first control signal to the first H bridge; a secondary stage including four switches forming a second H bridge; a control circuit capable of applying a second control signal to the second H bridge; and a power transmission stage coupling the primary stage to the secondary stage, wherein the control circuit of the secondary stage is electrically isolated from the control circuit of the primary stage. During a measurement period of a synchronization phase, the switches of the secondary stage are maintained in a short-circuit configuration while the switches of the primary stage are controlled in switched mode.Type: GrantFiled: July 26, 2020Date of Patent: March 29, 2022Assignee: Commissariat à l'Energie Atomique et aux Energies AlternativesInventors: Dominique Bergogne, Pierre Perichon, Léo Sterna
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Publication number: 20220094350Abstract: The present disclosure concerns a method and a circuit for controlling first and second switches electrically in series, wherein one or a plurality of crossings of a voltage threshold by a voltage across the first switch cause a conductive state of the second switch.Type: ApplicationFiled: September 15, 2021Publication date: March 24, 2022Inventors: Léo STERNA, Pierre PERICHON
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Patent number: 11152865Abstract: The instant disclosure concerns a power converter including: a primary stage (110) including at least one first cut-off switch (S11, S12, S13, S14); a control circuit (112) capable of applying a first control signal to said at least ore first switch; a secondary stage (130) including at least one second cut-off switch (S21, S22, S23, S24); a control circuit (132) capable of applying a second control signal to said at least one second switch; a power transmission stage (120) coupling the primary stage (110) to the secondary stage (130), wherein the control circuit (132) of the secondary stage is electrically isolated from the control circuit (112) of the primary stage.Type: GrantFiled: July 29, 2020Date of Patent: October 19, 2021Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Dominique Bergogne, Pierre Perichon, Léo Sterna
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Publication number: 20210184592Abstract: The present disclosure concerns a circuit (302) for controlling two switches (210-1, 210-2) electrically in series, including sensors (310-1, 310-2) of voltages across the switches and a circuit (310) of comparison of signals output by said sensors, one at least of said sensors being an active circuit.Type: ApplicationFiled: December 11, 2020Publication date: June 17, 2021Inventors: Léo STERNA, Pierre PERICHON
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Publication number: 20210036620Abstract: The present invention concerns a power converter including a primary stage including at least one first cut-off switch; a control circuit capable of applying a first control signal to said at least one first switch; a secondary stage including at least one second cut-off switch; a control circuit capable of applying a second control signal to said at least one second switch; and a power transmission stage coupling the primary stage to the secondary stage, wherein the control circuit of the secondary stage is electrically isolated from the control circuit of the primary stage.Type: ApplicationFiled: July 26, 2020Publication date: February 4, 2021Inventors: Dominique BERGOGNE, Pierre PERICHON, Léo STERNA
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Publication number: 20210036624Abstract: The instant disclosure concerns a power converter including: a primary stage (110) including at least one first cut-off switch (S11, S12, S13, S14); a control circuit (112) capable of applying a first control signal to said at least ore first switch; a secondary stage (130) including at least one second cut-off switch (S21, S22, S23, S24); a control circuit (132) capable of applying a second control signal to said at least one second switch; a power transmission stage (120) coupling the primary stage (110) to the secondary stage (130), wherein the control circuit (132) of the secondary stage is electrically isolated from the control circuit (112) of the primary stage.Type: ApplicationFiled: July 29, 2020Publication date: February 4, 2021Inventors: Dominique BERGOGNE, Pierre PERICHON, Léo STERNA
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Patent number: 10425014Abstract: An AC/DC converter including: an H bridge; an inductance in series with an input of the bridge; an inductance in series with an output of the bridge; and a circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second complementary configuration, the circuit being capable, during a phase of transition between the first and second configurations, of: turning on a first switch of the second diagonal; turning off a first switch of the first diagonal when the current flowing through this switch takes a zero value; turning on the second switch of the second diagonal; and turning off the second switch of the first diagonal when the current flowing through this switch takes a zero value.Type: GrantFiled: January 9, 2018Date of Patent: September 24, 2019Assignee: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Léo Sterna, Othman Ladhari, Jean-Paul Ferrieux, David Frey, Pierre-Olivier Jeannin
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Patent number: 10250158Abstract: An AC/DC conversion circuit, including: four bidirectional switches forming an H bridge; a capacitor connected between input nodes of the bridge; a capacitor connected between output nodes of the bridge; and a control circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second configuration where the first and second diagonals are respectively non-conductive and conductive, the control circuit being capable, during a phase of transition between the first and second configurations, of: turning off the switches of the first diagonal; and for each switch of the second diagonal, turning on the switch only when the voltage thereacross takes a zero value.Type: GrantFiled: January 9, 2018Date of Patent: April 2, 2019Assignee: Commisariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Léo Sterna, Othman Ladhari, Jean-Paul Ferrieux, David Frey, Pierre-Olivier Jeannin
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Patent number: 10172201Abstract: An electronic converter allows a power transfer from an AC voltage source, connected between an input terminal and a common terminal, to a load connected between an output terminal and a reference terminal, the AC voltage including positive alternations interspersed with negative alternations at a first frequency. The converter includes an input inductance connected to the input terminal; an output inductance connected to the output terminal; a storage capacitor between the inductances; a chopper circuit that: in a first state, charges the input inductance via the AC voltage source and discharges the storage capacitance in the output inductance by supplying the load; in a second state, discharges the input inductance in the storage capacitance and discharges the output inductance by supplying the load; and a device for controlling the chopper circuit to activate, during each alternations, consecutive operating cycles at a second frequency higher than the first frequency.Type: GrantFiled: August 30, 2016Date of Patent: January 1, 2019Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Pierre Perichon, Othman Ladhari, Léo Sterna
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Publication number: 20180263090Abstract: An electronic converter allows a power transfer from an AC voltage source, connected between an input terminal and a common terminal, to a load connected between an output terminal and a reference terminal, the AC voltage including positive alternations interspersed with negative alternations at a first frequency. The converter includes an input inductance connected to the input terminal; an output inductance connected to the output terminal; a storage capacitor between the inductances; a chopper circuit that: in a first state, charges the input inductance via the AC voltage source and discharges the storage capacitance in the output inductance by supplying the load; in a second state, discharges the input inductance in the storage capacitance and discharges the output inductance by supplying the load; and a device for controlling the chopper circuit to activate, during each alternations, consecutive operating cycles at a second frequency higher than the first frequency.Type: ApplicationFiled: August 30, 2016Publication date: September 13, 2018Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Pierre PERICHON, Othman LADHARI, Léo STERNA
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Publication number: 20180198381Abstract: An AC/DC converter including: an H bridge; an inductance in series with an input of the bridge; an inductance in series with an output of the bridge; and a circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second complementary configuration, the circuit being capable, during a phase of transition between the first and second configurations, of: turning on a first switch of the second diagonal; turning off a first switch of the first diagonal when the current flowing through this switch takes a zero value; turning on the second switch of the second diagonal; and turning off the second switch of the first diagonal when the current flowing through this switch takes a zero value.Type: ApplicationFiled: January 9, 2018Publication date: July 12, 2018Applicant: Commissariat à l'Énergie Atomique et aux Énergies AlternativesInventors: Léo Sterna, Othman Ladhari, Jean-Paul Ferrieux, David Frey, Pierre-Olivier Jeannin
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Publication number: 20180198380Abstract: An AC/DC conversion circuit, including: four bidirectional switches forming an H bridge; a capacitor connected between input nodes of the bridge; a capacitor connected between output nodes of the bridge; and a control circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second configuration where the first and second diagonals are respectively non-conductive and conductive, the control circuit being capable, during a phase of transition between the first and second configurations, of: turning off the switches of the first diagonal; and for each switch of the second diagonal, turning on the switch only when the voltage thereacross takes a zero value.Type: ApplicationFiled: January 9, 2018Publication date: July 12, 2018Applicant: Commissariat à I'Énergie Atomique et aux Énergies AlternativesInventors: Léo Sterna, Othman Ladhari, Jean-Paul Ferrieux, David Frey, Pierre-Olivier Jeannin