Patents by Inventor Bertrand Rivet
Bertrand Rivet 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).
-
Publication number: 20240113704Abstract: A method for controlling a MOS transistor compares a first voltage between a drain and a source of the MOS transistor to a second controllable threshold voltage. When the first voltage is smaller than a third voltage, a fourth control voltage is applied to the MOS transistor that is greater than a fifth threshold voltage of the MOS transistor. When the first voltage is greater than the second voltage, the fourth control voltage applied to the MOS transistor is smaller than the fifth voltage. The second voltage is equal to a first constant value between a first time and a second time, and is equal to a second variable value between the second time and a third time. The second value is equal to a sum of the first voltage and a sixth positive voltage. The third time corresponds to a time when the first voltage inverts.Type: ApplicationFiled: September 22, 2023Publication date: April 4, 2024Applicant: STMicroelectronics (Tours) SASInventors: Diawoye CISSE, Bertrand RIVET, Frederic GAUTIER
-
Patent number: 10784787Abstract: A circuit includes a first field-effect transistor and a second field-effect transistor. The first field-effect transistor includes a first diode with drain, source, gate and first additional electrodes. The second field-effect transistor includes a second diode with drain, source, gate and second additional electrodes. A first switch selectively connects the gate and drain electrodes of the first field-effect transistor. A second switch selectively connects the gate and drain electrodes of the second field-effect transistor. A control circuit controls the first and second switches. The first additional electrode is coupled to the gate electrode of the second field-effect transistor, and the second additional electrode is coupled to the gate electrode of the first field-effect transistor.Type: GrantFiled: October 28, 2014Date of Patent: September 22, 2020Assignee: STMICROELECTRONICS (TOURS) SASInventors: Bertrand Rivet, Greca Jean Charles, Frederic Lanois
-
Patent number: 10133290Abstract: A circuit for balancing a voltage across a semiconductor element series-connected with other semiconductor elements of the same type may include a comparator configured to compare data representative of a voltage across the semiconductor element with a reference voltage, and a resistive element of adjustable value and configured to be controlled by the comparator.Type: GrantFiled: November 29, 2016Date of Patent: November 20, 2018Assignee: STMICROELECTRONICS (TOURS) SASInventors: Bertrand Rivet, David Jouve
-
Patent number: 10045420Abstract: A circuit is for balancing currents flowing through a parallel assembly of semiconductor components of the same type. The circuit may include a respective regulation circuit for each semiconductor component. Each regulation circuit may include a comparator of a first signal representative of the current flowing through the component with a reference signal, and a resistive element of a changeable resistance and controlled by the comparator.Type: GrantFiled: August 28, 2015Date of Patent: August 7, 2018Assignee: STMicroelectronics (Tours) SASInventors: Bertrand Rivet, David Jouve
-
Publication number: 20170075371Abstract: A circuit for balancing a voltage across a semiconductor element series-connected with other semiconductor elements of the same type may include a comparator configured to compare data representative of a voltage across the semiconductor element with a reference voltage, and a resistive element of adjustable value and configured to be controlled by the comparator.Type: ApplicationFiled: November 29, 2016Publication date: March 16, 2017Inventors: BERTRAND RIVET, DAVID JOUVE
-
Patent number: 9541936Abstract: A circuit for balancing a voltage across a semiconductor element series-connected with other semiconductor elements of the same type may include a comparator configured to compare data representative of a voltage across the semiconductor element with a reference voltage, and a resistive element of adjustable value and configured to be controlled by the comparator.Type: GrantFiled: November 20, 2014Date of Patent: January 10, 2017Assignee: STMICROELECTRONICS (TOURS) SASInventors: Bertrand Rivet, David Jouve
-
Publication number: 20160181907Abstract: A circuit is for balancing currents flowing through a parallel assembly of semiconductor components of the same type. The circuit may include a respective regulation circuit for each semiconductor component. Each regulation circuit may include a comparator of a first signal representative of the current flowing through the component with a reference signal, and a resistive element of a changeable resistance and controlled by the comparator.Type: ApplicationFiled: August 28, 2015Publication date: June 23, 2016Inventors: Bertrand RIVET, David Jouve
-
Patent number: 9118260Abstract: A method for controlling at least one switch in a power converter, wherein the switching speed of the switch dynamically varies according to a measurement of a quantity representative of the efficiency of the converter.Type: GrantFiled: September 14, 2012Date of Patent: August 25, 2015Assignee: STMicroelectronics (Tours) SASInventors: Frédéric Gautier, Bertrand Rivet
-
Publication number: 20150137880Abstract: A circuit for balancing a voltage across a semiconductor element series-connected with other semiconductor elements of the same type may include a comparator configured to compare data representative of a voltage across the semiconductor element with a reference voltage, and a resistive element of adjustable value and configured to be controlled by the comparator.Type: ApplicationFiled: November 20, 2014Publication date: May 21, 2015Inventors: Bertrand RIVET, David JOUVE
-
Publication number: 20150116874Abstract: An overvoltage protection device uses a varistor coupled in series with a switch between two terminals provided for connection to a circuit device or element to be protected. A control circuit controls actuation of the switch in response to sensing voltage at or between the two terminals in excess of a first threshold. The first threshold is less than a clipping voltage of the varistor but in excess of a supply voltage for the circuit device or element. The control circuit further controls detactuation of the switch based, for example, on elapsed time from actuation or current flow.Type: ApplicationFiled: October 23, 2014Publication date: April 30, 2015Applicant: STMICROELECTRONICS (TOURS) SASInventors: Greca Jean Charles, Bertrand Rivet
-
Publication number: 20150117063Abstract: A circuit includes a first field-effect transistor and a second field-effect transistor. The first field-effect transistor includes a first diode with drain, source, gate and first additional electrodes. The second field-effect transistor includes a second diode with drain, source, gate and second additional electrodes. A first switch selectively connects the gate and drain electrodes of the first field-effect transistor. A second switch selectively connects the gate and drain electrodes of the second field-effect transistor. A control circuit controls the first and second switches. The first additional electrode is coupled to the gate electrode of the second field-effect transistor, and the second additional electrode is coupled to the gate electrode of the first field-effect transistor.Type: ApplicationFiled: October 28, 2014Publication date: April 30, 2015Applicant: STMICROELECTRONICS (TOURS) SASInventors: Bertrand Rivet, Greca Jean Charles, Frederic Lanois
-
Patent number: 8891265Abstract: A switch-mode converter including an inductive transformer having a secondary winding associated with at least one first switch, including, in parallel with the first switch, at least one first diode in series with a capacitive element; and in parallel with the capacitive element, an active circuit for limiting the voltage thereacross.Type: GrantFiled: May 12, 2009Date of Patent: November 18, 2014Assignee: STMicroelectronics (Tours) SASInventors: Bertrand Rivet, Aurélien Hamadou
-
Patent number: 8593116Abstract: A switched-mode converter includes a first magnetic circuit including a first inductive element, coupled to at least one second inductive element and electrically coupled in series with the second element and with a first diode between a first one of two input terminals and a first one of two output terminals; a first switch coupled in series with a third inductive element between a second terminal of the first inductive element and a second input terminal, a common node between the first switch and the third inductive element being connected to one of the output terminals by a second diode; and a circuit capable of canceling the voltage across the first switch before its turning-on.Type: GrantFiled: March 18, 2010Date of Patent: November 26, 2013Assignee: STMicroelectronics (Tours) SASInventors: Bertrand Rivet, Benoî^t Peron, Aurélien Hamadou
-
Publication number: 20130107595Abstract: A method for controlling at least one switch in a power converter, wherein the switching speed of the switch dynamically varies according to a measurement of a quantity representative of the efficiency of the converter.Type: ApplicationFiled: September 14, 2012Publication date: May 2, 2013Applicant: STMICROELECTRONICS (TOURS) SASInventors: Frédéric Gautier, Bertrand Rivet
-
Patent number: 8339388Abstract: A method and a circuit for controlling a power recovery stage of a plasma display panel including a resonant circuit of at least one inductive element and one capacitive element, wherein the capacitive element is precharged to half a supply voltage of the display panel.Type: GrantFiled: November 17, 2006Date of Patent: December 25, 2012Assignee: STMicroelectronics S.A.Inventors: Bertrand Rivet, Frédéric Gautier, Benoit Peron
-
Publication number: 20110063876Abstract: A switch-mode converter including an inductive transformer having a secondary winding associated with at least one first switch, including, in parallel with the first switch, at least one first diode in series with a capacitive element; and in parallel with the capacitive element, an active circuit for limiting the voltage thereacross.Type: ApplicationFiled: May 12, 2009Publication date: March 17, 2011Inventors: Bertrand Rivet, Aurélien Hamadou
-
Publication number: 20100237843Abstract: A switched-mode converter including a first magnetic circuit including a first inductive element, coupled to at least one second inductive element and electrically in series with this second element and with a first diode between a first one of two input terminals and a first one of two output terminals; a first switch in series with a third inductive element between a second terminal of the first inductive element and a second input terminal, a common node between the first switch and the third inductive element being connected to one of the output terminals by a second diode; and a circuit capable of canceling the voltage across this first switch before its turning-on.Type: ApplicationFiled: March 18, 2010Publication date: September 23, 2010Applicant: STMicroelectronics (Tours) SASInventors: Bertrand Rivet, Benoît Peron, Aurélien Hamadou
-
Patent number: 7768243Abstract: A switched-mode power converter, including, between a first end of a main inductive element and a switch, a two-value inductive element automatically switching between its two values.Type: GrantFiled: January 31, 2008Date of Patent: August 3, 2010Assignee: STMicroelectronics S.A.Inventors: Francis Cuellar, Bertrand Rivet
-
Publication number: 20090141014Abstract: A method and a circuit for controlling a power recovery stage of a plasma display panel including a resonant circuit of at least one inductive element and one capacitive element, wherein the capacitive element is precharged to half a supply voltage of the display panel.Type: ApplicationFiled: November 17, 2006Publication date: June 4, 2009Applicant: STMicroelectronics S.A.Inventors: Bertrand Rivet, Frederic Gautier, Benoit Peron
-
Patent number: 7440299Abstract: A circuit for controlling a switch to be controlled in unidirectional fashion while the voltage present thereacross is an A.C. Voltage, including circuitry for delaying the switch turning-on with respect to a zero crossing of the voltage thereacross, and circuitry for triggering the switch turning-off after its turning on, at the end of a predetermined time interval plus or minus an error time controlled by the duty cycle of the A.C. Voltage across the switch, in one or several previous periods. The control circuit applies to the forming of a rectifying circuit by the switch.Type: GrantFiled: September 20, 2007Date of Patent: October 21, 2008Assignee: STMicroelectronics S.A.Inventor: Bertrand Rivet