Patents by Inventor Frédéric Goutti
Frédéric Goutti 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: 8487704Abstract: A method generates a reference voltage by steps including: generating a reference signal from a voltage source; generating a comparison signal of the reference signal with a voltage reference; sampling the comparison signal; adjusting a numerical value as a function of the result of the comparison and of the numerical value; and converting the current numerical value into a voltage corresponding to the reference voltage.Type: GrantFiled: September 8, 2011Date of Patent: July 16, 2013Assignee: STMicroelectronics (Grenoble 2) SASInventors: Vincent Rabary, Frédéric Goutti, Robert Cittadini, Alexandre Huffenus, Gael Pillonnet
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Publication number: 20120126892Abstract: A method generates a reference voltage by steps including: generating a reference signal from a voltage source; generating a comparison signal of the reference signal with a voltage reference; sampling the comparison signal; adjusting a numerical value as a function of the result of the comparison and of the numerical value; and converting the current numerical value into a voltage corresponding to the reference voltage.Type: ApplicationFiled: September 8, 2011Publication date: May 24, 2012Applicant: STMICROELECTRONICS (GRENOBLE 2) SASInventors: Vincent Rabary, Frédéric Goutti, Robert Cittadini, Alexandre Huffenus, Gael Pillonnet
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Patent number: 7999597Abstract: A circuit adjustable after packaging includes a functional circuit supplied with a power potential and a reference potential and has at least one parameter adjustable by programming at least one programmable element and a circuit to program the programmable element of the functional circuit. The adjustable circuit also includes a limiter circuit to limit the voltage between the power supply potential and the reference potential to an adjustable limiting voltage, and a circuit to adjust the limiting voltage. After adjusting a parameter of the functional circuit, the limiting voltage of the limiter circuit is adjusted.Type: GrantFiled: May 21, 2009Date of Patent: August 16, 2011Assignee: STMicroelectronics S.A.Inventors: Sébastien Laville, Frédéric Goutti
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Patent number: 7589577Abstract: A circuit adjustable after packaging includes a functional circuit supplied with a power potential and a reference potential and has at least one parameter adjustable by programming at least one programmable element and a circuit to program the programmable element of the functional circuit. The adjustable circuit also includes a limiter circuit to limit the voltage between the power supply potential and the reference potential to an adjustable limiting voltage, and a circuit to adjust the limiting voltage. After adjusting a parameter of the functional circuit, the limiting voltage of the limiter circuit is adjusted.Type: GrantFiled: December 13, 2005Date of Patent: September 15, 2009Assignee: STMicroelectronics SAInventors: Sébastien Laville, Frédéric Goutti
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Publication number: 20090224815Abstract: A circuit adjustable after packaging includes a functional circuit supplied with a power potential and a reference potential and has at least one parameter adjustable by programming at least one programmable element and a circuit to program the programmable element of the functional circuit. The adjustable circuit also includes a limiter circuit to limit the voltage between the power supply potential and the reference potential to an adjustable limiting voltage, and a circuit to adjust the limiting voltage. After adjusting a parameter of the functional circuit, the limiting voltage of the limiter circuit is adjusted.Type: ApplicationFiled: May 21, 2009Publication date: September 10, 2009Applicant: STMicroelectronics S.A.Inventors: Sebastien LAVILLE, Frederic GOUTTI
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Patent number: 7113031Abstract: A power amplifier circuit comprising at least one first amplifier having a first input receiving an input voltage through at least one first coupling capacitor and connected to an output of the first amplifier, and having a second input, separate from the first input, receiving a reference voltage supplied by a time constant circuit comprising a decoupling capacitor, at least one first controllable switch connecting the first and second inputs.Type: GrantFiled: April 1, 2004Date of Patent: September 26, 2006Assignee: STMicroelectronics S.A.Inventors: Vincent Rabary, Frédéric Goutti
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Publication number: 20060132992Abstract: A circuit adjustable after packaging includes a functional circuit supplied with a power potential and a reference potential and has at least one parameter adjustable by programming at least one programmable element and a circuit to program the programmable element of the functional circuit. The adjustable circuit also includes a limiter circuit to limit the voltage between the power supply potential and the reference potential to an adjustable limiting voltage, and a circuit to adjust the limiting voltage. After adjusting a parameter of the functional circuit, the limiting voltage of the limiter circuit is adjusted.Type: ApplicationFiled: December 13, 2005Publication date: June 22, 2006Inventors: Sebastien Laville, Frederic Goutti
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Publication number: 20040196099Abstract: A power amplifier circuit comprising at least one first amplifier having a first input receiving an input voltage through at least one first coupling capacitor and connected to an output of the first amplifier, and having a second input, separate from the first input, receiving a reference voltage supplied by a time constant circuit comprising a decoupling capacitor, at least one first controllable switch connecting the first and second inputs.Type: ApplicationFiled: April 1, 2004Publication date: October 7, 2004Inventors: Vincent Rabary, Frederic Goutti
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Patent number: 6774726Abstract: An amplifier including first, second, and third series-connected stages, the third stage including a MOS output transistor having its source or drain forming an output terminal of the amplifier, including means for detecting the transition from a first operating state of the output transistor in which the drain current varies little with the voltage between the drain and the source to a second state in which the drain current varies substantially proportionally to the voltage between the drain and the source; and means for, upon detection of such a transition, having the voltage gain of the amplifier and/or the product between the bandwidth of the amplifier and the voltage gain of the amplifier at the upper limit frequency of the bandwidth drop.Type: GrantFiled: December 17, 2002Date of Patent: August 10, 2004Assignee: STMicroelectronics S.A.Inventors: Frédéric Goutti, Vincent Rabary
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Patent number: 6765437Abstract: An amplifying circuit receiving an input voltage and a reference voltage equal to a fraction of the circuit supply voltage, the reference voltage provided by a time constant circuit, including a circuit for, upon power-on, inhibiting the amplifying circuit for as long as the difference between the value of the provided reference voltage and the voltage at the output of the time constant circuit is greater than a determined threshold.Type: GrantFiled: October 4, 2002Date of Patent: July 20, 2004Assignee: STMicroelectronics S.A.Inventors: Frédéric Goutti, Christophe Forel
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Patent number: 6667658Abstract: An amplifier includes an input stage with one or more input terminals for receiving a signal to be amplified, and an output terminal. An inverting gain stage includes an input terminal connected to the output terminal of the input stage, an output terminal for delivering an amplified signal, and a variable feedback resistor connected between the output terminal and input terminal thereof. The input stage is a transconductor stage biased by a current source. A transconductance thereof is set by a resistor of the current source so that the amplifier has a gain proportional to the product of the variable feedback resistor multiplied by the transconductance.Type: GrantFiled: December 13, 2001Date of Patent: December 23, 2003Assignee: STMicroelectronics SAInventors: Jérôme Bourgoin, Frédéric Goutti
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Publication number: 20030112077Abstract: An amplifier including first, second, and third series-connected stages, the third stage including a MOS output transistor having its source or drain forming an output terminal of the amplifier, including means for detecting the transition from a first operating state of the output transistor in which the drain current varies little with the voltage between the drain and the source to a second state in which the drain current varies substantially proportionally to the voltage between the drain and the source; and means for, upon detection of such a transition, having the voltage gain of the amplifier and/or the product between the bandwidth of the amplifier and the voltage gain of the amplifier at the upper limit frequency of the bandwidth drop.Type: ApplicationFiled: December 17, 2002Publication date: June 19, 2003Applicant: STMicroelectronics S.A.Inventors: Frederic Goutti, Vincent Rabary
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Publication number: 20030067350Abstract: An amplifying circuit receiving an input voltage and a reference voltage equal to a fraction of the circuit supply voltage, the reference voltage provided by a time constant circuit, including a circuit for, upon power-on, inhibiting the amplifying circuit for as long as the difference between the value of the provided reference voltage and the voltage at the output of the time constant circuit is greater than a determined threshold.Type: ApplicationFiled: October 4, 2002Publication date: April 10, 2003Applicant: STMicroelectronics S.A.Inventors: Frederic Goutti, Christophe Forel
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Patent number: 6538495Abstract: A pair of complementary current sources includes a reference current source, and two complementary current mirrors having the same number of branches provided with bipolar mirror transistors. The bases of the mirror transistors of the complementary mirrors are connected to a common node. One of the complementary mirrors is connected to the reference source. An intermediate current mirror includes a first slave branch connected to the other complementary current mirror, a second slave branch connected to the reference source, and a master branch connected to the output of a trimming circuit for trimming the complementary currents for substantially equalizing the base currents of the mirror transistors of the complementary current mirrors. The input of the trimming circuit is connected to the common node.Type: GrantFiled: December 6, 2001Date of Patent: March 25, 2003Assignee: STMicroelectronics S.A.Inventors: Frédéric Goutti, Jérôme Bourgoin
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Patent number: 6456162Abstract: An operational amplifier includes an input stage, and a level-transforming stage with first and second arms. Each arm has at least one bipolar transistor. Input transistors are connected to the input stage and are connected together by their bases. At least one gain stage is connected to the transistor of the second transforming arm. A current terminal of the transistor on the first transforming arm is connected to its base by a bypass arm. In addition, the amplifier has a centering transistor connected by its base to the transistors on the arms of the transforming stage for controlling a current which conducts through the bypass arm.Type: GrantFiled: August 8, 2000Date of Patent: September 24, 2002Assignee: STMicroelectronics S.A.Inventor: Frédéric Goutti
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Publication number: 20020097093Abstract: An amplifier includes an input stage with one or more input terminals for receiving a signal to be amplified, and an output terminal. An inverting gain stage includes an input terminal connected to the output terminal of the input stage, an output terminal for delivering an amplified signal, and a variable feedback resistor connected between the output terminal and input terminal thereof. The input stage is a transconductor stage biased by a current source. A transconductance thereof is set by a resistor of the current source so that the amplifier has a gain proportional to the product of the variable feedback resistor multiplied by the transconductance.Type: ApplicationFiled: December 13, 2001Publication date: July 25, 2002Applicant: STMicroelectronics S.A.Inventors: Jerome Bourgoin, Frederic Goutti
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Publication number: 20020089371Abstract: A pair of complementary current sources includes a reference current source, and two complementary current mirrors having the same number of branches provided with bipolar mirror transistors. The bases of the mirror transistors of the complementary mirrors are connected to a common node. One of the complementary mirrors is connected to the reference source. An intermediate current mirror includes a first slave branch connected to the other complementary current mirror, a second slave branch connected to the reference source, and a master branch connected to the output of a trimming circuit for trimming the complementary currents for substantially equalizing the base currents of the mirror transistors of the complementary current mirrors. The input of the trimming circuit is connected to the common node.Type: ApplicationFiled: December 6, 2001Publication date: July 11, 2002Applicant: STMicroelectronics S.A.Inventors: Frederic Goutti, Jerome Bourgoin
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Patent number: 6407636Abstract: An operational amplifier includes an input transconductor stage with differential inputs and an output, an output stage, and at least one intermediate stage connected between the input stage and the output stage so as to form an amplifier chain. The intermediate stage includes a common-emitter bipolar transistor between first and second power supply terminals, and at least one feedback resistor connected between the bipolar transistor emitter and one of the power supply terminals. The intermediate stage also includes at least one feedback capacitance connected between the emitter terminal of the transistor and an output of a next stage.Type: GrantFiled: July 6, 2000Date of Patent: June 18, 2002Assignee: STMicroelectronics S.A.Inventor: Frédéric Goutti
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Patent number: 6307438Abstract: A multistage operational amplifier includes a transconductor input stage, an output stage, and an intermediate stage. A first Miller capacitor is connected between the input and the output of the intermediate stage. A second Miller capacitor is connected between the input of the intermediate stage and an output of the output stage. A current mirror is connected to the output from the intermediate stage to draw a current therefrom.Type: GrantFiled: July 6, 2000Date of Patent: October 23, 2001Assignee: STMicroelectronics S.A.Inventor: Frédéric Goutti
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Patent number: 5729177Abstract: An amplifier includes two complementary differential input stages and a first current source that is switched as a function of the input voltage of the amplifier in order to render active one or the other of the input stages by establishing the quiescent current of the input stage. A folded cascode stage has two cascode transistors whose currents are determined by a bias voltage of these transistors and reduced by the currents circulating in the output branches of a first of the differential input stages. Circuitry switched at the same time as the first current source for maintaining a constant current in the cascode transistors when one of the differential stages changes between an active state and an inactive state.Type: GrantFiled: December 18, 1995Date of Patent: March 17, 1998Assignee: SGS-Thomson Microelectronics S.A.Inventor: Frederic Goutti