Patents by Inventor Nicolas Levilly
Nicolas Levilly 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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Publication number: 20260148887Abstract: An assembly is configured for use in an X-ray generation unit of a medical imaging device. The assembly includes a core assembly, a core mount, and one or more ties configured to couple the core assembly to the core mount. The core assembly includes a magnetic core, a plurality of insulated cables, a plurality of standoffs, and a core mount. Each of the standoffs is configured to couple to an end of each of the insulated cables. The core mount is configured to receive the core assembly. The core mount includes a longitudinal section extending along a first plane, a lateral section extending from the longitudinal section along a second plane, and a plurality of receptacles extending from the lateral section. Each of the receptacles is substantially perpendicular to the second plane and includes a receptacle aperture configured to receive one of the standoffs.Type: ApplicationFiled: November 27, 2024Publication date: May 28, 2026Applicant: GE Precision Healthcare LLCInventors: Evguen Tsourkan, Baptiste Salvi, Nicolas Levilly, Yuan Fang
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Patent number: 12610460Abstract: Various systems are provided for an electrical feedthrough circuit board for a high voltage tank, comprising a pair of outer signal layers, at least one inner signal layer; wherein the at least one inner signal layer electrically connects an air side of the electrical feedthrough circuit board and an oil side of the electrical feedthrough circuit board. As an example, the high voltage tank may comprise a high voltage tank tubular envelope, a printed circuit board having an oil side and an air side arranged inside the high voltage tank, a pair of O-rings arranged on either side of the printed circuit board, wherein the pair of O-rings surround the oil side of the printed circuit board, and an end plate.Type: GrantFiled: March 27, 2024Date of Patent: April 21, 2026Assignee: GE PRECISION HEALTHCARE LLCInventors: Jonathan Chaumeil, Christophe Robert, Baptiste Salvi, Nicolas Levilly
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Publication number: 20250311096Abstract: Various systems are provided for an electrical feedthrough circuit board for a high voltage tank, comprising a pair of outer signal layers, at least one inner signal layer; wherein the at least one inner signal layer electrically connects an air side of the electrical feedthrough circuit board and an oil side of the electrical feedthrough circuit board. As an example, the high voltage tank may comprise a high voltage tank tubular envelope, a printed circuit board having an oil side and an air side arranged inside the high voltage tank, a pair of O-rings arranged on either side of the printed circuit board, wherein the pair of O-rings surround the oil side of the printed circuit board, and an end plate.Type: ApplicationFiled: March 27, 2024Publication date: October 2, 2025Inventors: Jonathan Chaumeil, Christophe Robert, Baptiste Salvi, Nicolas Levilly
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Publication number: 20250300568Abstract: Methods and systems are provided for an active rectifier comprising an alternating current (AC) portion on one side of the active rectifier, a direct current (DC) portion on another side of the active rectifier, an insulated gate bipolar transistor (IGBT) portion positioned between the AC portion and the DC portion, and a heat sink positioned below the IGBT portion and between the AC portion and DC portion, the heat sink electrically coupling the AC portion and the DC portion to achieve a reduced inductive path between the AC portion and the DC portion.Type: ApplicationFiled: March 19, 2024Publication date: September 25, 2025Inventors: Baptiste Salvi, Nicolas Levilly, Evguen Tsourkan
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Publication number: 20250301558Abstract: Systems and methods for controlling a high voltage generator of an interventional imaging system are provided herein. In one example, a method for an interventional imaging system includes generating a plurality of X-ray pulses with an X-ray tube of the interventional imaging system, each X-ray pulse generated by supplying voltage to the X-ray tube from a high voltage generator and opening a gridding electrode of the X-ray tube, and turning off the high voltage generator between each X-ray pulse. In some examples, the high voltage generator may be reactivated prior to each X-ray pulse according to a command signal that anticipates an actual start time of each X-ray pulse.Type: ApplicationFiled: March 20, 2024Publication date: September 25, 2025Inventors: Loïc Cabrol, Yann Casteignau, Nicolas Levilly, Baptiste Salvi
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Publication number: 20250301557Abstract: Systems and methods for a power electronics assembly. The power electronics assembly includes, in one example, a gate board electronically connected to a power board, a plurality of power modules which each include multiple power terminals which are electronically connected to the power board via multiple attachment devices, and multiple interconnection boards. In the power electronics assembly, each of the plurality of interconnection boards are electronically connected to the gate board via multiple gate board terminals and one of the power modules via multiple control terminals.Type: ApplicationFiled: March 20, 2024Publication date: September 25, 2025Inventors: Jonathan Chaumeil, Nicolas Levilly
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Publication number: 20250301559Abstract: Methods and systems are provided for detecting and identifying a degraded component of a filament drive circuit of an X-ray imaging system. In one example, the degraded component may be identified by including diagnostic capacitors at various location in the filament drive circuit, which may alter a resonant frequency of the filament drive circuit in the event of a degraded filament, cable, or different component of the filament drive circuit. During a diagnostic procedure, a voltage pulse may be performed on the filament drive circuit, and a resulting current may be measured and converted into a digital signal. The digital signal may be compared to a set of reference resonant frequencies stored in a lookup table in a memory of the X-ray imaging system, where a matching resonant frequency may indicate which component of the filament drive circuit is degraded.Type: ApplicationFiled: May 14, 2024Publication date: September 25, 2025Inventors: Jean François Larroux, Yannick Louvrier, Nicolas Levilly, Sravan Vorem
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Patent number: 10813204Abstract: A system for grid control of an electromagnetic ray tube is provided. The system includes a power source, a rectifier, and a grid conductor. The power source is disposed apart from the electromagnetic ray tube and operative to generate an AC current. The rectifier is integrated into the electromagnetic ray tube and electrically coupled to a grid electrode of the electromagnetic ray tube. The grid conductor electrically couples the power source to the rectifier. The rectifier is operative to convert the AC current to a DC current that powers the grid electrode.Type: GrantFiled: August 24, 2018Date of Patent: October 20, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Philippe Ernest, Stephane Gautrais, Etienne Clemot, Nicolas Levilly, Dominique Poincloux, Antonio Caiafa
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Patent number: 10727830Abstract: A switch of an inverter of an X-ray tube power supply including: at least four MOSFETs aligned in parallel; a plurality of intermediate radiators positioned between the MOSFETs in order to separate two successive MOSFETs; at least four snubbers positioned in parallel, each being positioned beside a MOSFET; a control unit of said switch positioned so that the succession of MOSFETs is positioned between the alignment of snubbers and the control unit.Type: GrantFiled: September 10, 2014Date of Patent: July 28, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Nicolas Levilly, Denis Perrilliat-Amede, Patrick Feat, Daniel Dumourier, Elie Herve
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Patent number: 10645787Abstract: A system for providing electrical power to a load is provided. The system includes at least two inverters and at least two resonant circuits. The inverters are operative to electrically connect to a power source. The resonant circuits are each electrically connected to at least one of the inverters and operative to provide electrical power to the load. The resonant circuits are coupled to each other.Type: GrantFiled: December 13, 2017Date of Patent: May 5, 2020Assignee: General Electric CompanyInventors: Philippe Ernest, Niranjan Kumar, Nicolas Levilly, Yash Veer Singh, Guillermo Garcia Soto
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Publication number: 20200068692Abstract: A system for grid control of an electromagnetic ray tube is provided. The system includes a power source, a rectifier, and a grid conductor. The power source is disposed apart from the electromagnetic ray tube and operative to generate an AC current. The rectifier is integrated into the electromagnetic ray tube and electrically coupled to a grid electrode of the electromagnetic ray tube. The grid conductor electrically couples the power source to the rectifier. The rectifier is operative to convert the AC current to a DC current that powers the grid electrode.Type: ApplicationFiled: August 24, 2018Publication date: February 27, 2020Applicant: GENERAL ELECTRIC COMPANYInventors: PHILIPPE ERNEST, STEPHANE GAUTRAIS, ETIENNE CLEMOT, NICOLAS LEVILLY, DOMINIQUE POINCLOUX, ANTONIO CAIAFA
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Publication number: 20190182944Abstract: A system for providing electrical power to a load is provided. The system includes at least two inverters and at least two resonant circuits. The inverters are operative to electrically connect to a power source. The resonant circuits are each electrically connected to at least one of the inverters and operative to provide electrical power to the load. The resonant circuits are coupled to each other.Type: ApplicationFiled: December 13, 2017Publication date: June 13, 2019Applicant: GENERAL ELECTRIC COMPANYInventors: PHILIPPE ERNEST, NIRANJAN KUMAR, NICOLAS LEVILLY, YASH VEER SINGH, GUILLERMO GARCIA SOTO
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Patent number: 10014623Abstract: A high voltage connector is provided. The high voltage connector includes multiple electrical conductors, and at least one autotransformer. The high voltage connector is configured to couple a high voltage cable to an X-ray tube.Type: GrantFiled: November 23, 2016Date of Patent: July 3, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Philippe Ernest, Stephane Gautrais, Yannick Louvrier, Nicolas Levilly
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Publication number: 20180145444Abstract: A high voltage connector is provided. The high voltage connector includes multiple electrical conductors, and at least one autotransformer. The high voltage connector is configured to couple a high voltage cable to an X-ray tube.Type: ApplicationFiled: November 23, 2016Publication date: May 24, 2018Inventors: Philippe Ernest, Stephane Gautrais, Yannick Louvrier, Nicolas Levilly
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Publication number: 20180145609Abstract: An inverter for a computed tomography (CT) system is provided. The inverter includes a hybrid switch. The hybrid switch includes a silicon carbide metal-oxide-semiconductor field-effect transistor (SiC MOSFET) portion, an insulated-gate bipolar transistor (IGBT) portion, a first gate associated within the SiC MOSFET portion, and a second gate associated with the IGBT portion. The SiC MOSFET portion and the IGBT portion of the hybrid switch are configured to be independently controlled via the first gate and the second gate.Type: ApplicationFiled: November 23, 2016Publication date: May 24, 2018Inventors: Yannick Louvrier, Christophe Robert, Philippe Ernest, Nicolas Levilly
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Publication number: 20160315606Abstract: A switch of an inverter of an X-ray tube power supply including: at least four MOSFETs aligned in parallel; a plurality of intermediate radiators positioned between the MOSFETs in order to separate two successive MOSFETs; at least four snubbers positioned in parallel, each being positioned beside a MOSFET; a control unit of said switch positioned so that the succession of MOSFETs is positioned between the alignment of snubbers and the control unit.Type: ApplicationFiled: September 10, 2014Publication date: October 27, 2016Applicant: General Electric CompanyInventors: Nicolas Levilly, Denis Perrilliat-Amede, Patrick Feat, Daniel Dumourier, Elie Herve
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Patent number: 9467065Abstract: A system for controlling a multilevel soft switching power converter including a DC bus, a pair of switching arms, and a controller is disclosed. The DC bus has a positive rail and a negative rail operable to have a voltage potential present across the DC bus. Each switching arm is connected between the positive rail and the negative rail and includes four soft switches. Each soft switch is connected between the positive rail, the negative rail, or one of three intermediate connections between the positive and negative rails. Each soft switch is also controlled by a gating signal. A flying capacitor is connected between the first intermediate connection and the third intermediate connection and an output terminal is connected at the second intermediate connection of each switching arm. A controller is operable to generate each of the gating signals utilizing at least three control routines.Type: GrantFiled: December 30, 2014Date of Patent: October 11, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Nicolas Levilly, Philippe Ernest, Julien Bouhraoua, Janusz Rodziewicz
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Publication number: 20160190956Abstract: A system for controlling a multilevel soft switching power converter including a DC bus, a pair of switching arms, and a controller is disclosed. The DC bus has a positive rail and a negative rail operable to have a voltage potential present across the DC bus. Each switching arm is connected between the positive rail and the negative rail and includes four soft switches. Each soft switch is connected between the positive rail, the negative rail, or one of three intermediate connections between the positive and negative rails. Each soft switch is also controlled by a gating signal. A flying capacitor is connected between the first intermediate connection and the third intermediate connection and an output terminal is connected at the second intermediate connection of each switching arm. A controller is operable to generate each of the gating signals utilizing at least three control routines.Type: ApplicationFiled: December 30, 2014Publication date: June 30, 2016Inventors: Nicolas Levilly, Philippe Ernest, Julian Bouhraoua, Janusz Rodziewicz