Patents by Inventor Beatrice Bernoux
Beatrice Bernoux 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).
-
Patent number: 9692239Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a lower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.Type: GrantFiled: April 4, 2016Date of Patent: June 27, 2017Assignee: NXP USA, INC.Inventors: Josef Drobnik, Beatrice Bernoux
-
Publication number: 20160218526Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a lower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.Type: ApplicationFiled: April 4, 2016Publication date: July 28, 2016Inventors: Josef DROBNIK, Beatrice BERNOUX
-
Patent number: 9337670Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a tower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.Type: GrantFiled: February 19, 2013Date of Patent: May 10, 2016Assignee: FREESCALE SEMICONDUCTOR, INC.Inventors: Josef Drobnik, Beatrice Bernoux
-
Patent number: 9214864Abstract: A switch mode power supply has a first and second branch of an inductive element; a first switching element and a second switching element connected in series. Both branches are coupled to a power source in parallel. A controller controls said switching elements for operating said switch mode power supply in a plurality of consecutive time periods, wherein more than two of said switching elements are closed, i.e. at least one in each branch. The power supply has a polarity switching element coupled between said branches for receiving a pulsed voltage for providing an output voltage of a switchable polarity. The controller receives a feedback signal corresponding to the output voltage, compares the feedback signal to a reference waveform, and controls said switching elements and the polarity switching element in dependence of said comparing for generating the output voltage according to the reference waveform.Type: GrantFiled: April 26, 2012Date of Patent: December 15, 2015Assignee: Freescale Semiconductor, Inc.Inventors: Beatrice Bernoux, Josef Drobnik
-
Publication number: 20150061612Abstract: A switch mode power supply has a first and second branch of an inductive element; a first switching element and a second switching element connected in series. Both branches are coupled to a power source in parallel. A controller controls said switching elements for operating said switch mode power supply in a plurality of consecutive time periods, wherein more than two of said switching elements are closed, i.e. at least one in each branch. The power supply has a polarity switching element coupled between said branches for receiving a pulsed voltage for providing an output voltage of a switchable polarity. The controller receives a feedback signal corresponding to the output voltage, compares the feedback signal to a reference waveform, and controls said switching elements and the polarity switching element in dependence of said comparing for generating the output voltage according to the reference waveform.Type: ApplicationFiled: April 26, 2012Publication date: March 5, 2015Applicant: Freescale Semiconductor, Inc.Inventors: Beatrice Bernoux, Josef Drobnik
-
Publication number: 20140232347Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a tower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.Type: ApplicationFiled: February 19, 2013Publication date: August 21, 2014Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: Josef DROBNIK, Beatrice BERNOUX
-
Patent number: 8779794Abstract: A transistor power switch device comprising an array of vertical transistor elements for carrying current between first and second faces of a semiconductor body. The device also comprises a semiconductor monitor element comprising first and second semiconductor monitor regions in the semiconductor body and a monitor conductive layer distinct from the current carrying conductive layer of the transistor array. The semiconductor monitor element presents semiconductor properties representative of the transistor array. Characteristics of the semiconductor monitor element are measured as representative of characteristics of the transistor array. Source metal ageing of a transistor power switch device is monitored by measuring and recording a parameter which is a function of a sheet resistance of the monitor conductive layer when the transistor power switch device is new and comparing it with its value after operation of the device.Type: GrantFiled: August 18, 2009Date of Patent: July 15, 2014Assignee: Freescale Semiconductor, Inc.Inventors: Beatrice Bernoux, Rene Escoffier, Jean Michel Reynes
-
Patent number: 8604560Abstract: A transistor power switch device comprising a semiconductor body presenting opposite first and second faces, an array of vertical field-effect transistor elements for carrying current between the first and second faces is provided. The array of transistor elements comprises at the first face an array of source regions of a first semiconductor type, at least one body region of a second semiconductor type opposite to the first type interposed between the source regions and the second face, at least one control electrode for switchably controlling flow of the current through the second transistor region, and a conductive layer contacting the source regions and insulated from the control electrode by at least one insulating layer.Type: GrantFiled: November 27, 2008Date of Patent: December 10, 2013Assignee: Freescale Semiconductor, Inc.Inventors: Jean Michel Reynes, Beatrice Bernoux, Rene Escoffier, Pierre Jalbaud, Ivana Deram
-
Patent number: 8530953Abstract: A transistor power switch device comprising an array of vertical transistor elements for carrying current between the first and second faces of a semiconductor body and a vertical avalanche diode electrically in parallel with the array of vertical transistors. The array of transistor elements includes at the first face an array of source regions of a first semiconductor type, at least one p region of a second semiconductor type opposite to the first type interposed between the source regions and the second face, at least one control electrode for switchably controlling flow of the current through the p region, and a conductive layer contacting the source regions and insulated from the control electrode.Type: GrantFiled: November 27, 2008Date of Patent: September 10, 2013Assignee: Freescale Semiconductor, Inc.Inventors: Jean Michel Reynes, Beatrice Bernoux, Rene Escoffier, Pierre Jalbaud, Ivana Deram
-
Publication number: 20120133388Abstract: A transistor power switch device comprising an array of vertical transistor elements for carrying current between first and second faces of a semiconductor body. The device also comprises a semiconductor monitor element comprising first and second semiconductor monitor regions in the semiconductor body and a monitor conductive layer distinct from the current carrying conductive layer of the transistor array. The semiconductor monitor element presents semiconductor properties representative of the transistor array. Characteristics of the semiconductor monitor element are measured as representative of characteristics of the transistor array. Source metal ageing of a transistor power switch device is monitored by measuring and recording a parameter which is a function of a sheet resistance of the monitor conductive layer when the transistor power switch device is new and comparing it with its value after operation of the device.Type: ApplicationFiled: August 18, 2009Publication date: May 31, 2012Applicant: Freescale Semiconductor, Inc.Inventors: Beatrice Bernoux, Rene Escoffier, Jean Reynes
-
Publication number: 20110227146Abstract: A transistor power switch device comprising a semiconductor body presenting opposite first and second faces, an array of vertical field-effect transistor elements for carrying current between the first and second faces, is provided. The array of transistor elements comprises at the first face an array of source regions of a first semiconductor type, at least one body region of a second semiconductor type opposite to the first type interposed between the source regions and the second face, at least one control electrode for switchably controlling flow of the current through the second transistor region, and a conductive layer contacting the source regions and insulated from the control electrode by at least one insulating layer.Type: ApplicationFiled: November 27, 2008Publication date: September 22, 2011Applicant: Freescale Semiconductor, Inc.Inventors: Jean Michel Reynes, Beatrice Bernoux, Rene Escoffier, Pierre Jalbaud, Ivana Deram