Patents by Inventor Sebastien ORTET
Sebastien ORTET 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: 12199511Abstract: In an embodiment, a voltage converter is configured to operate by a succession of operating cycles, each cycle comprising an energy accumulation phase and an energy restitution phase, wherein the converter is further configured to determine a duration of one of the phases by comparing a voltage ramp and a first reference voltage, and wherein a slope of the voltage ramp depends on a sign of a current in an inductor at an end of a previous operating cycle.Type: GrantFiled: February 24, 2022Date of Patent: January 14, 2025Assignee: STMicroelectronics (Rousset) SASInventors: Sebastien Ortet, Didier Davino, Remi Collette
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Patent number: 12176804Abstract: The present disclosure relates to a voltage converter and method for pulse frequency modulation-type operation during a start-up phase.Type: GrantFiled: January 5, 2022Date of Patent: December 24, 2024Assignee: STMicroelectronics (Rousset) SASInventors: Sebastien Ortet, Vincent Binet
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Patent number: 12143015Abstract: In an embodiment a switching power supply includes a voltage ramp generator comprising at least one output capacitor, wherein the generator is configured such that the output capacitor has a first value during a first operating cycle of a first operating mode and a second value during subsequent operating cycles of the first operating mode.Type: GrantFiled: April 27, 2022Date of Patent: November 12, 2024Assignee: STMICROELECTRONICS (ROUSSET) SASInventor: Sebastien Ortet
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Patent number: 12107504Abstract: In an embodiment, a switching power supply includes: an output stage; a clock generator configured to generate a first clock signal; and a control circuit configured to control the output stage based on the first clock signal, wherein the switching power supply is configured to have a first operating mode synchronized by the first clock signal, and a second operating mode that is asynchronous, wherein the clock generator is configured to maintain the first clock signal at a constant value during the second operating mode.Type: GrantFiled: January 10, 2022Date of Patent: October 1, 2024Assignee: STMicroelectronics (Rousset) SASInventors: Sebastien Ortet, Vincent Binet
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Publication number: 20240201024Abstract: An integrated circuit temperature sensor includes two diode-connected bipolar transistors having different sizes. A switching circuit selectively applies the base-emitter voltages generated across the two diode-connected bipolar transistors to the input of a buffer circuit. A control unit controls alternate switching by the switching circuit. An analog-to-digital converter has an input connected to an output of the buffer circuit. The analog-to-digital converter calculates a numeric value corresponding to a difference between the voltages generated across the two diode-connected bipolar transistors, this difference in voltages being proportional to absolute temperature.Type: ApplicationFiled: December 12, 2023Publication date: June 20, 2024Applicant: STMicroelectronics International N.V.Inventors: Vincent BINET, Sebastien ORTET
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Patent number: 11967900Abstract: An embodiment voltage converter includes a first transistor connected between a first node of the converter and a second node configured to receive a power supply voltage, a second transistor connected between the first node and a third node configured to receive a reference potential, a first circuit configured to control the first and second transistors, and a comparator including first and second inputs. The first input is configured to receive, during a first phase, a first voltage ramp and, during a second phase, a set point voltage. The second input is configured to receive, during the first phase, the set point voltage and, during the second phase, a second voltage ramp.Type: GrantFiled: July 2, 2021Date of Patent: April 23, 2024Assignee: STMicroelectronics (Rousset) SASInventors: Sebastien Ortet, Olivier Lauzier
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Patent number: 11901819Abstract: An embodiment voltage converter includes a first transistor connected between a first node of the converter and a second node configured to receive a power supply voltage, a second transistor connected between the first node and a third node configured to receive a reference potential, a first circuit configured to control the first and second transistors, and a comparator including first and second inputs. The first input is configured to receive, during a first phase, a first voltage ramp and, during a second phase, a set point voltage. The second input is configured to receive, during the first phase, the set point voltage and, during the second phase, a second voltage ramp.Type: GrantFiled: July 2, 2021Date of Patent: February 13, 2024Assignee: STMicroelectronics (Rousset) SASInventors: Sebastien Ortet, Olivier Lauzier
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Publication number: 20230412076Abstract: A switched-mode power supply includes a voltage ramp generation circuit that generates a voltage ramp signal. The voltage ramp generation circuit includes, selectively connected in parallel, at least three capacitors. The selective connection of the capacitors is made according to a value of an internal power supply voltage of the switched-mode power supply.Type: ApplicationFiled: September 6, 2023Publication date: December 21, 2023Applicant: STMICROELECTRONICS (ROUSSET) SASInventors: Michel CUENCA, Sebastien ORTET
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Patent number: 11784567Abstract: In an embodiment, a device includes a switching power supply configured to have a first operating mode synchronized by a first clock signal generated by a clock generator a second asynchronous operating mode. The clock generator is configured such that the first clock signal becomes equal, upon transition from the second operating mode to the first operating mode, to the signal having the closest rising edge of a second clock signal and a third clock signal complementary to the second clock signal.Type: GrantFiled: January 10, 2022Date of Patent: October 10, 2023Assignee: STMicroelectronics (Rousset) SASInventor: Sebastien Ortet
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Patent number: 11784564Abstract: A switched-mode power supply includes a voltage ramp generation circuit that generates a voltage ramp signal. The voltage ramp generation circuit includes, selectively connected in parallel, at least three capacitors. The selective connection of the capacitors is made according to a value of an internal power supply voltage of the switched-mode power supply.Type: GrantFiled: July 20, 2020Date of Patent: October 10, 2023Assignee: STMicroelectronics (Rousset) SASInventors: Michel Cuenca, Sebastien Ortet
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Patent number: 11736018Abstract: An embodiment electronic device includes a first circuit including first and second transistors series-coupled between a node of application of a power supply voltage and a node of application of a reference voltage, the first and second transistors being coupled to each other by a first node, and a second circuit, configured to compare a first voltage on the first node with first and second voltage thresholds.Type: GrantFiled: July 8, 2021Date of Patent: August 22, 2023Assignee: STMICROELECTRONICS (ROUSSET) SASInventors: Sebastien Ortet, Didier Davino
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Patent number: 11670956Abstract: An integrated circuit includes: a primary supply stage including a primary supply node, the primary supply stage being configured to deliver a primary supply voltage to the primary supply node; a secondary supply stage including a secondary supply node, the secondary supply stage being configured to deliver a secondary supply voltage to the secondary supply node; a supply-switching circuit; a pre-charging circuit controllably coupled to the secondary supply node via the supply-switching circuit; and a volatile memory circuit controllably coupled to the primary supply node and the secondary supply node via the supply-switching circuit, wherein the switching circuit is configured to connect a supply of the volatile memory circuit either to the primary supply node in a primary supply mode, or to the secondary supply node in a secondary supply mode.Type: GrantFiled: August 27, 2021Date of Patent: June 6, 2023Assignee: STMICROELECTRONICS (ROUSSET) SASInventors: Laurent Truphemus, Sebastien Ortet
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Patent number: 11539295Abstract: An electronic device includes a switched-mode power supply having a first operating phase during which the output node of the switched-mode power supply is coupled by an on switch to a source of a first reference voltage. The first operating phase is followed by a second operation phase during which the output node of the switched-mode power supply is in a high impedance state. While in the second operating phase, a capacitor connected to the output node of the switched-mode power supply at least partially discharges into a load.Type: GrantFiled: November 4, 2020Date of Patent: December 27, 2022Assignee: STMicroelectronics (Rousset) SASInventors: Sebastien Ortet, Didier Davino, Cedric Thomas
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Publication number: 20220376622Abstract: In an embodiment a switching power supply includes a voltage ramp generator comprising at least one output capacitor, wherein the generator is configured such that the output capacitor has a first value during a first operating cycle of a first operating mode and a second value during subsequent operating cycles of the first operating mode.Type: ApplicationFiled: April 27, 2022Publication date: November 24, 2022Inventor: Sebastien Ortet
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Publication number: 20220321009Abstract: In an embodiment, a voltage converter is configured to operate by a succession of operating cycles, each cycle comprising an energy accumulation phase and an energy restitution phase, wherein the converter is further configured to determine a duration of one of the phases by comparing a voltage ramp and a first reference voltage, and wherein a slope of the voltage ramp depends on a sign of a current in an inductor at an end of a previous operating cycle.Type: ApplicationFiled: February 24, 2022Publication date: October 6, 2022Inventors: Sebastien Ortet, Didier Davino, Remi Collette
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Patent number: 11456661Abstract: The process for starting a power supply circuit which includes a switched-mode power supply is performed using: a first phase during which, if an output voltage of the switched-mode power supply is lower than a first voltage, the switched-mode power supply operates in pulse width modulation mode to increase its output voltage up to said first voltage; and when the output voltage has reached the first voltage, a second phase during which the switched-mode power supply operates in a bypass mode.Type: GrantFiled: July 16, 2020Date of Patent: September 27, 2022Assignee: STMicroelectronics (Rousset) SASInventors: Sebastien Ortet, Cedric Thomas
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Publication number: 20220263406Abstract: The present disclosure relates to a voltage converter and method for pulse frequency modulation-type operation during a start-up phase.Type: ApplicationFiled: January 5, 2022Publication date: August 18, 2022Inventors: Sebastien Ortet, Vincent Binet
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Publication number: 20220247318Abstract: In an embodiment, a switching power supply includes: an output stage; a clock generator configured to generate a first clock signal; and a control circuit configured to control the output stage based on the first clock signal, wherein the switching power supply is configured to have a first operating mode synchronized by the first clock signal, and a second operating mode that is asynchronous, wherein the clock generator is configured to maintain the first clock signal at a constant value during the second operating mode.Type: ApplicationFiled: January 10, 2022Publication date: August 4, 2022Inventors: Sebastien Ortet, Vincent Binet
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Publication number: 20220247311Abstract: In an embodiment, a device includes a switching power supply configured to have a first operating mode synchronized by a first clock signal generated by a clock generator a second asynchronous operating mode. The clock generator is configured such that the first clock signal becomes equal, upon transition from the second operating mode to the first operating mode, to the signal having the closest rising edge of a second clock signal and a third clock signal complementary to the second clock signal.Type: ApplicationFiled: January 10, 2022Publication date: August 4, 2022Inventor: Sebastien Ortet
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Publication number: 20220038001Abstract: An embodiment voltage converter includes a first transistor connected between a first node of the converter and a second node configured to receive a power supply voltage, a second transistor connected between the first node and a third node configured to receive a reference potential, a first circuit configured to control the first and second transistors, and a comparator including first and second inputs. The first input is configured to receive, during a first phase, a first voltage ramp and, during a second phase, a set point voltage. The second input is configured to receive, during the first phase, the set point voltage and, during the second phase, a second voltage ramp.Type: ApplicationFiled: July 2, 2021Publication date: February 3, 2022Inventors: Sebastien Ortet, Olivier Lauzier