Patents by Inventor Denis Perrillat
Denis Perrillat 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: 10952308Abstract: A system for protecting a transformer is provided. The system includes an inductor electrically disposed between the transformer and a load powered by the transformer, and a resistor electrically disposed in parallel with the inductor between the transformer and the load.Type: GrantFiled: May 31, 2018Date of Patent: March 16, 2021Assignee: GENERAL ELECTRIC COMPANYInventors: Yannick Louvrier, Christophe Robert, Dominique Poincloux, Denis Perrillat-Amede, Philippe Ernest
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Publication number: 20190150259Abstract: A system for protecting a transformer is provided. The system includes an inductor electrically disposed between the transformer and a load powered by the transformer, and a resistor electrically disposed in parallel with the inductor between the transformer and the load.Type: ApplicationFiled: May 31, 2018Publication date: May 16, 2019Applicant: GENERAL ELECTRIC COMPANYInventors: YANNICK LOUVRIER, CHRISTOPHE ROBERT, DOMINIQUE POINCLOUX, DENIS PERRILLAT-AMEDE, PHILIPPE ERNEST
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Patent number: 10262829Abstract: A circuit assembly and method use a breakover device that changes states in response to a change in electric energy in a helper circuit that supplies current from a power source to a powered system. The helper circuit includes an inductive element connected with the powered system. The breakover device is in a non-conducting state prior to a discharge event from the powered system to prevent the current from the power source from being conducted through the resistive element. The breakover device changes to a conducting state responsive to the powered system discharging current into the helper circuit. The breakover device conducts the current that is discharged from the powered system through the resistive element to reduce the electric energy in the helper circuit from the current that is discharged.Type: GrantFiled: August 26, 2016Date of Patent: April 16, 2019Assignee: General Electric CompanyInventors: Antonio Caiafa, Phillipe Ernest, Dominique Poincloux, Uwe Wiedmann, Denis Perrillat-Amee
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Patent number: 10165663Abstract: An x-ray system for simultaneously or concurrently measuring currents of multiple emitters is provided. The x-ray system includes a high voltage direct current (DC) supply configured to supply tube current to the multiple emitters and plural emitter circuits. Each of these circuits includes each comprising an alternating current (AC) voltage supply, at least one of the multiple emitters operatively coupled to the AC voltage supply and the high voltage DC supply, and a circuit coupling the AC voltage supply and the high voltage DC voltage supply to the at least one of the multiple filaments. At least one of the emitter circuits has a current measurement device between the high voltage DC supply and the emitter.Type: GrantFiled: April 5, 2016Date of Patent: December 25, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Uwe Wiedmann, Philippe Ernest, Denis Perrillat-Amede, Dominique Poincloux, Jean-Francois Larroux
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Patent number: 9930765Abstract: In an X-ray generator an X-ray tube includes an anode and a cathode and is energized with at least a first high voltage potential. A dynamic damper with a frequency dependent impedance is interposed between the X-ray tube and a source of the high voltage potential. The impedance of the dynamic damper increases with an increase in frequency associated with tube-spit. In an X-ray generator with resonant switching to provide a first kV level and a second kV level to the X-ray tube, the impedance of the dynamic damper is low at the operational frequency of the resonant switch to promote energy recovery when the resonant switch operates to provide a first kV level to the X-ray tube.Type: GrantFiled: February 4, 2016Date of Patent: March 27, 2018Assignee: General Electric CompanyInventors: Yannick Louvrier, Philippe Ernest, Denis Perrillat-Amede, Dominique Poincloux, Christophe Robert
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Patent number: 9888894Abstract: Acquisition of X-ray transmission data at three or more energy levels is described. Various implementations utilize generator waveforms that utilize fast-switching, slow-switching, or a combination of fast- and slow-switching to transition between X-ray energy levels. In addition, various sampling arrangements for sampling and/or binning three or more energy levels of X-ray transmission data are discussed. The use of these data in subsequent processing steps, such for material decomposition and/or improvement of dual-energy material decomposition processing, are also described.Type: GrantFiled: December 21, 2015Date of Patent: February 13, 2018Assignee: General Electric CompanyInventors: Uwe Wiedmann, Peter Michael Edic, Bruno Kristiaan Bernard De Man, Naveen Stephan Chandra, Jed Douglas Pack, Yannan Jin, Denis Perrillat-Amede, Jean-Francois Larroux
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Publication number: 20170290136Abstract: An x-ray system for simultaneously or concurrently measuring currents of multiple emitters is provided. The x-ray system includes a high voltage direct current (DC) supply configured to supply tube current to the multiple emitters and plural emitter circuits. Each of these circuits includes each comprising an alternating current (AC) voltage supply, at least one of the multiple emitters operatively coupled to the AC voltage supply and the high voltage DC supply, and a circuit coupling the AC voltage supply and the high voltage DC voltage supply to the at least one of the multiple filaments. At least one of the emitter circuits has a current measurement device between the high voltage DC supply and the emitter.Type: ApplicationFiled: April 5, 2016Publication date: October 5, 2017Inventors: Uwe Wiedmann, Philippe Ernest, Denis Perrillat-Amede, Dominique Poincloux, Jean-Francois Larroux
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Publication number: 20170231076Abstract: In an X-ray generator an X-ray tube includes an anode and a cathode and is energized with at least a first high voltage potential. A dynamic damper with a frequency dependent impedance is interposed between the X-ray tube and a source of the high voltage potential. The impedance of the dynamic damper increases with an increase in frequency associated with tube-spit. In an X-ray generator with resonant switching to provide a first kV level and a second kV level to the X-ray tube, the impedance of the dynamic damper is low at the operational frequency of the resonant switch to promote energy recovery when the resonant switch operates to provide a first kV level to the X-ray tube.Type: ApplicationFiled: February 4, 2016Publication date: August 10, 2017Applicant: General Electric CompanyInventors: Yannick Louvrier, Philippe Ernest, Denis Perrillat-Amede, Dominique Poincloux, Christophe Robert
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Publication number: 20170172528Abstract: Acquisition of X-ray transmission data at three or more energy levels is described. Various implementations utilize generator waveforms that utilize fast-switching, slow-switching, or a combination of fast- and slow-switching to transition between X-ray energy levels. In addition, various sampling arrangements for sampling and/or binning three or more energy levels of X-ray transmission data are discussed. The use of these data in subsequent processing steps, such for material decomposition and/or improvement of dual-energy material decomposition processing, are also described.Type: ApplicationFiled: December 21, 2015Publication date: June 22, 2017Inventors: Uwe Wiedmann, Peter Michael Edic, Bruno Kristiaan Bernard De Man, Naveen Stephan Chandra, Jed Douglas Pack, Yannan Jin, Denis Perrillat-Amede, Jean- Francois Larroux
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Publication number: 20170170652Abstract: A circuit assembly and method use a breakover device that changes states in response to a change in electric energy in a helper circuit that supplies current from a power source to a powered system. The helper circuit includes an inductive element connected with the powered system. The breakover device is in a non-conducting state prior to a discharge event from the powered system to prevent the current from the power source from being conducted through the resistive element. The breakover device changes to a conducting state responsive to the powered system discharging current into the helper circuit. The breakover device conducts the current that is discharged from the powered system through the resistive element to reduce the electric energy in the helper circuit from the current that is discharged.Type: ApplicationFiled: August 26, 2016Publication date: June 15, 2017Inventors: ANTONIO CAIAFA, Phillipe Ernest, Dominique Poincloux, Uwe Wiedmann, Denis Perrillat-Amee
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Publication number: 20160262250Abstract: A power generation system includes an input to receive a low-voltage alternating current and a number N of voltage-conversion modules coupled to the input, each electrically connected in series. Each voltage-conversion module includes a transformer configured to convert the low-voltage alternating current into a high voltage alternating current. Each voltage-conversion module includes a multiplier configured to convert the high-voltage alternating current from the transformer into a high-voltage direct current. The multiplier includes a positive multiplier part and a negative multiplier part. The positive multiplier part and the negative multiplier part each includes a. pair of input terminals connected in parallel with the transform and at least one multiplier stage comprising a single diode and a capacitor assembly. The number N is an even number between 4 and 24.Type: ApplicationFiled: May 17, 2016Publication date: September 8, 2016Inventors: Saijun MAO, Denis Perrillat-Amede, Philippe Ernest, Niranjan Kumar, Xu Chu
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Patent number: 9369060Abstract: A power generation system includes an input to receive a low-voltage alternating current and a number N of voltage-conversion modules coupled to the input, each electrically connected in series. Each voltage-conversion module includes a transformer configured to convert the low-voltage alternating current into a high-voltage alternating current. Each voltage-conversion module includes a multiplier configured to convert the high-voltage alternating current from the transformer into a high-voltage direct current. The multiplier includes a positive multiplier part and a negative multiplier part. The positive multiplier part and the negative multiplier part each includes a pair of input terminals connected in parallel with the transform and at least one multiplier stage comprising a single diode and a capacitor assembly. The number N is an even number between 4 and 24.Type: GrantFiled: January 4, 2013Date of Patent: June 14, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Saijun Mao, Denis Perrillat-Amede, Philippe Ernest, Niranjan Kumar, Xu Chu
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Patent number: 9198629Abstract: A medical imaging method comprising generating a radiation at a first energy level by a radiation source, generating a radiation at a second energy level different from the first energy level by the radiation source, emitting the generated radiations at an output of the radiation source towards a detector, and blocking or diverting the emitted radiations during at least one intermediate phase during which the radiation source switches in a transient way from one of the first energy level and the second energy level to the other of the first energy level and the second energy level.Type: GrantFiled: April 30, 2012Date of Patent: December 1, 2015Assignee: GENERAL ELECTRIC COMPANYInventors: Uwe Wiedmann, Denis Perrillat-Amede
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Publication number: 20150145344Abstract: A high voltage transformer arrangement for supplying power to a high voltage tank assembly is disclosed. The high voltage transformer arrangement includes a first core arranged in the high voltage tank assembly and a secondary winding configured on the first core, a second core positioned outside of the high voltage tank assembly and at a predefined distance from the first core, and a primary winding configured on the second core. The second core and the primary winding transfers current received from an external power source to the first core and secondary winding for supplying power to the high voltage tank assembly.Type: ApplicationFiled: November 25, 2014Publication date: May 28, 2015Inventors: Niranjan KUMAR, Denis Perrillat-Amede, Venugopal Vadivel
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Publication number: 20150023468Abstract: A portable x-ray system includes a light weight x-ray head including an x-ray tube and a high voltage (HV) tank, wherein the HV tank comprises a compact voltage multiplier configured to receive a low voltage signal and generate a high voltage signal based on the received low voltage signal. Also, the portable x-ray system includes a carrying case comprising low voltage power electronics coupled to the light weight x-ray head through a low voltage cable, and configured to send the low voltage signal to the light weight x-ray head. In addition, the low voltage power electronics is distributed in a predefined space in the carrying case in such a way that a weight of the light weight x-ray head is counter weighed by a weight of the low voltage power electronics to stabilize the portable x-ray system when the light weight x-ray head is rotated in one or more directions.Type: ApplicationFiled: July 17, 2013Publication date: January 22, 2015Inventors: Yun Zou, Scott Stephen Zelakiewicz, Fengfeng Tao, Xi Zhang, Timothy Powers, Thomas Edmund Sjoberg, Marc Weasler, Denis Perrillat-Amede
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Publication number: 20120326031Abstract: A medical imaging method comprising generating a radiation at a first energy level by a radiation source, generating a radiation at a second energy level different from the first energy level by the radiation source, emitting the generated radiations at an output of the radiation source towards a detector, and blocking or diverting the emitted radiations during at least one intermediate phase during which the radiation source switches in a transient way from one of the first energy level and the second energy level to the other of the first energy level and the second energy level.Type: ApplicationFiled: April 30, 2012Publication date: December 27, 2012Inventors: Uwe WIEDMANN, Denis Perrillat-Amede
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Patent number: 8308506Abstract: The present embodiments relate to a cable assembly with ultra-low capacitance. In one embodiment, a cable assembly is provided. The cable assembly includes an insulation layer. The insulation layer includes a low-permittivity insulation material.Type: GrantFiled: January 24, 2011Date of Patent: November 13, 2012Assignee: General Electric CompanyInventors: Liang Tang, Yang Cao, Denis Perrillat-Amede, Weijun Yin
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Publication number: 20120190233Abstract: The present embodiments relate to a cable assembly with ultra-low capacitance. In one embodiment, a cable assembly is provided. The cable assembly includes an insulation layer. The insulation layer includes a low-permittivity insulation material.Type: ApplicationFiled: January 24, 2011Publication date: July 26, 2012Applicant: General Electric CompanyInventors: Liang Tang, Yang Cao, Denis Perrillat-Amédé, Weijun Yin
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Patent number: 8098124Abstract: A high-voltage transformer has a plurality of elementary transformers. Each elementary transformer comprises an elementary primary circuit configured to be powered by an elementary primary voltage, an elementary secondary circuit comprising at least one secondary winding and at least one capacitor that is connected to the terminals of a secondary winding, and an elementary magnetic circuit configured to couple the elementary primary circuit and the elementary secondary circuit. The output voltage of the transformer is equal to the sum of the elementary balanced secondary voltages, and the elementary primary circuits are connected to one another so as to form a common circuit with the elementary transformers. The common circuit is configured to be supplied by a primary voltage, which is equal to the sum of the elementary primary voltages.Type: GrantFiled: March 25, 2010Date of Patent: January 17, 2012Assignee: General Electric CompanyInventors: Denis Perrillat-Amede, Philippe Ernest, Georges-William Baptiste, Patrick Feat
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Patent number: 7903432Abstract: A power generation system comprises a power source, a transformer module for converting a low voltage from the power source into a higher voltage, and a voltage-multiplier module for amplifying higher voltage from the transformer module. The transformer module comprises a number N of transformer units. Each transformer unit comprises at least one transformer, and each transformer comprises a magnetic core, a primary winding, and a secondary winding. Primary windings of the transformers in the transformer module are electrically coupled in parallel to the power source, secondary windings of the transformers of each transformer unit comprise a pair of output terminal, and N is equal to or greater than two. The voltage-multiplier module comprises the number N of multipliers. Each multiplier module comprises a positive and a negative input terminal, and a positive and a negative output terminal.Type: GrantFiled: May 29, 2009Date of Patent: March 8, 2011Assignee: General Electric CompanyInventors: Jing Luo, Saijun Mao, Yunfeng Liu, Denis Perrillat-Amede, Philippe Ernest, Xiaoming Yuan