Patents by Inventor Georges William Baptiste
Georges William Baptiste 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: 9603230Abstract: Systems and methods for measuring current with shielded conductors are provided. One system includes a first wire within shielding, wherein the first wire is connected between a high voltage source and a filament of an x-ray system. The system also includes a second wire within shielding, wherein the second wire is connected between the high voltage source and the x-ray system and the shielding of the first and second wires is at a high voltage potential of the x-ray system. The system further includes a measurement resistor at a high voltage potential, wherein the measurement resistor is connected between the shielding and one of the first or second wires.Type: GrantFiled: December 3, 2013Date of Patent: March 21, 2017Assignee: General ElectricInventors: Uwe Wiedmann, George William Baptiste
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Patent number: 9253864Abstract: Apparatus and methods to control an electron beam of an x-ray tube are provided. One apparatus includes at least one of (i) a first switching unit having a voltage source and a pair of switches connected in series and configured to switch between open and closed positions to change an output voltage to engage or bypass the voltage source or (ii) a second switching unit connected to a voltage source and having a first pair of switches connected in series and a second pair of switches connected in series, wherein the first and second pair of switches are connected in parallel, and wherein the first and second pairs of switches are configured to switch between open and closed position to change an output voltage generated from the voltage source. The first and second switching units are connected in series and a third switching unit provided that is amplitude controllable.Type: GrantFiled: March 10, 2014Date of Patent: February 2, 2016Assignee: General Electric CompanyInventors: Antonio Caiafa, Uwe Wiedmann, Philippe Ernest, Georges William Baptiste, Dominique Poincloux, Yan Jiang
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Publication number: 20150137795Abstract: Systems and methods for measuring current with shielded conductors are provided. One system includes a first wire within shielding, wherein the first wire is connected between a high voltage source and a filament of an x-ray system. The system also includes a second wire within shielding, wherein the second wire is connected between the high voltage source and the x-ray system and the shielding of the first and second wires is at a high voltage potential of the x-ray system. The system further includes a measurement resistor at a high voltage potential, wherein the measurement resistor is connected between the shielding and one of the first or second wires.Type: ApplicationFiled: December 3, 2013Publication date: May 21, 2015Applicant: General Electric CompanyInventors: Uwe Wiedmann, George William Baptiste
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Publication number: 20150063546Abstract: Apparatus and methods to control an electron beam of an x-ray tube are provided. One apparatus includes at least one of (i) a first switching unit having a voltage source and a pair of switches connected in series and configured to switch between open and closed positions to change an output voltage to engage or bypass the voltage source or (ii) a second switching unit connected to a voltage source and having a first pair of switches connected in series and a second pair of switches connected in series, wherein the first and second pair of switches are connected in parallel, and wherein the first and second pairs of switches are configured to switch between open and closed position to change an output voltage generated from the voltage source. The first and second switching units are connected in series and a third switching unit provided that is amplitude controllable.Type: ApplicationFiled: March 10, 2014Publication date: March 5, 2015Applicant: General Electric CompanyInventors: Antonio Caiafa, Uwe Wiedmann, Philippe Ernest, Georges William Baptiste, Dominique Poincloux, Yan Jiang
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Patent number: 8189741Abstract: An electrical power supply of an X-ray tube. A high voltage generation device having a primary capacitor is configured to transmit a high voltage to the X-ray tube. At least one voltage source is configured to supply the primary capacitor. An energy storage device has an auxiliary capacitor that is configured to receive from the primary capacitor a quantity of energy and to return said energy to the primary capacitor. A control device arranged in series between the high voltage generation device and the storage device is configured to connect or isolate the storage device from the high voltage generation device so the X-ray tube is powered by a variable high voltage very rapidly between a first high voltage and a second high voltage.Type: GrantFiled: January 27, 2010Date of Patent: May 29, 2012Assignee: General Electric CompanyInventors: Philippe Ernest, Georges William Baptiste
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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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Publication number: 20100245014Abstract: 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: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Inventors: Denis Perrillat-Amede, Philippe Ernest, Georges-William Baptiste, Patrick Feat
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Publication number: 20100189225Abstract: The invention relates to an electrical power supply of an X-ray tube comprising: a high voltage generation device configured to transmit a high voltage to the X-ray tube comprising: a primary capacitor; at least one voltage source configured to supply the primary capacitor; an energy storage device comprising: an auxiliary capacitor configured to receive from the primary capacitor a quantity of energy and to return said energy to the primary capacity; a control device arranged between the generation device and the storage device, the generation, storage and control devices being connected in series, the control device being capable of connecting or isolating the storage device from the generation device such that the X-ray tube is powered by a variable high voltage very rapidly between a first high voltage and a second high voltage.Type: ApplicationFiled: January 27, 2010Publication date: July 29, 2010Inventors: Phillippe Ernest, Georges William Baptiste
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Patent number: 7668295Abstract: A system and method to improve the high voltage performance of an x-ray tube with electrostatic deflection of an electron beam focal spot. The system and method provides protection of bias circuits from high voltage transients and spit protection in x-ray tubes through the use of a high voltage transient suppression and spit protection circuit assembly coupled between the bias circuits of a high voltage generator and an x-ray tube vacuum housing of an x-ray generation system.Type: GrantFiled: May 14, 2007Date of Patent: February 23, 2010Assignee: General Electric Co.Inventors: Liang Tang, Philippe Ernest, Georges-William Baptiste, Fengfeng Tao
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Patent number: 7526067Abstract: An electrical power supply for an X-ray tube comprising a current source, a transformer with a primary circuit and a secondary circuit coupled with a resistor (R), the unit supplying a high-voltage generator provided with an equivalent input capacitor is used, when the generator is powered on, to limit the intensity of the inrush current appearing in the circuit.Type: GrantFiled: January 8, 2008Date of Patent: April 28, 2009Assignee: General Electric CompanyInventors: Philippe Ernest, Georges William Baptiste
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Publication number: 20080285716Abstract: A system and method to improve the high voltage performance of an x-ray tube with electrostatic deflection of an electron beam focal spot. The system and method provides protection of bias circuits from high voltage transients and spit protection in x-ray tubes through the use of a high voltage transient suppression and spit protection circuit assembly coupled between the bias circuits of a high voltage generator and an x-ray tube vacuum housing of an x-ray generation system.Type: ApplicationFiled: May 14, 2007Publication date: November 20, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Liang Tang, Philippe Ernest, Georges-William Baptiste, Fengfeng Tao
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Publication number: 20080170667Abstract: An electrical power supply for an X-ray tube comprising a current source, a transformer with a primary circuit and a secondary circuit coupled with a resistor (R), the unit supplying a high-voltage generator provided with an equivalent input capacitor is used, when the generator is powered on, to limit the intensity of the inrush current appearing in the circuit.Type: ApplicationFiled: January 8, 2008Publication date: July 17, 2008Inventors: Philippe ERNEST, Georges William BAPTISTE
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Patent number: 7379312Abstract: A high-voltage device having a measuring resistor, also called a bleeder, is plunged into an electrical field whose voltage varies in the same way as the voltage along the bleeder. To achieve this, the capacitive elements are distributed in two rows, each row defining a plane. Along each row, the potentials are growing. The space between the two rows is sufficient for the bleeder to be placed therein. The bleeder is formed either by series-connected resistors or by a screen-printed resistor.Type: GrantFiled: August 10, 2004Date of Patent: May 27, 2008Assignee: GE Medical Systems Global Technology Company, LLCInventors: Georges William Baptiste, Denis Perillat-Amede, Laurence Abonneau
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Patent number: 6834000Abstract: A double resonance voltage converter and method of operating such a converter having: a switching circuit with a first switch and a second switch; a double resonance resonant circuit having a series resonant circuit and a parallel resonant circuit; a rectifying and filtering circuit, and a control circuit for controlling the switching circuit having two state arrangements. A first arrangement controls the conducting states of the switching circuit and a second arrangement controls the start of the first arrangement. The converter may be used to obtain very high voltages, on the order of 100 kilovolts and more, for providing power to an X-ray tube in a radiological imaging apparatus.Type: GrantFiled: April 28, 2003Date of Patent: December 21, 2004Assignee: GE Medical Systems Global Technology Company LLCInventors: Vincent Croulard, George-William Baptiste, Alain Durville
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Publication number: 20030231514Abstract: A double resonance electronic converter and method of operating such a converter having: a switching circuit comprising a first switch and a second switch; a double resonance resonant circuit having a series resonant circuit and a parallel resonant circuit; a rectifying and filtering circuit, and a control circuit for controlling the switching circuit having two state arrangements. A first arrangement for controlling states of the switching circuit and a second arrangement for controlling the start of the first arrangement. The converter may be used to obtain very high voltages, on the order of 100 kilovolts and more, for providing power to an X-ray tube in a radiological imaging apparatus.Type: ApplicationFiled: April 28, 2003Publication date: December 18, 2003Inventors: Vincent Croulard, George-William Baptiste, Alain Durville