Patents by Inventor Francesco Polo
Francesco Polo 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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Publication number: 20240151784Abstract: The present disclosure relates to a current sensor, including a magnetic-field sensor for measuring a magnetic field induced by an electrical current; an output connection for providing an amplified measurement signal from the magnetic-field sensor, the magnetic-field sensor and the output connection being connected by an analog signal path having at least one amplifier, the analog signal path having a frequency response; a temperature sensor for measuring a temperature; and a compensation circuit which is coupled to the analog signal path and is configured to correct the frequency response of the analog signal path based on the temperature.Type: ApplicationFiled: October 24, 2023Publication date: May 9, 2024Inventors: Edwin Mario MOTZ, Francesco POLO
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Patent number: 11846962Abstract: A bandgap reference circuit includes a bandgap reference core circuit that includes a first bipolar transistor having a first emitter current density and a first base-emitter voltage, a second bipolar transistor having a second emitter current density that is smaller than the first emitter current density and having a second base-emitter voltage, a resistor that is connected to the emitter of the second bipolar transistor, and a differential amplifier circuit that is configured to control first and second emitter currents through the first and second bipolar transistors, respectively, such that a sum of the second base-emitter voltage and a voltage drop across the resistor approximates the first base-emitter voltage. The bandgap reference circuit further includes a first replica bipolar transistor that emulates an operating point of the first bipolar transistor and a second replica bipolar transistor that emulates an operating point of the second bipolar transistor.Type: GrantFiled: May 10, 2022Date of Patent: December 19, 2023Assignee: Infineon Technologies AGInventors: Mario Motz, Francesco Polo
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Publication number: 20220374037Abstract: A bandgap reference circuit includes a bandgap reference core circuit that includes a first bipolar transistor having a first emitter current density and a first base-emitter voltage, a second bipolar transistor having a second emitter current density that is smaller than the first emitter current density and having a second base-emitter voltage, a resistor that is connected to the emitter of the second bipolar transistor, and a differential amplifier circuit that is configured to control first and second emitter currents through the first and second bipolar transistors, respectively, such that a sum of the second base-emitter voltage and a voltage drop across the resistor approximates the first base-emitter voltage. The bandgap reference circuit further includes a first replica bipolar transistor that emulates an operating point of the first bipolar transistor and a second replica bipolar transistor that emulates an operating point of the second bipolar transistor.Type: ApplicationFiled: May 10, 2022Publication date: November 24, 2022Applicant: Infineon Technologies AGInventors: Mario MOTZ, Francesco POLO
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Publication number: 20220137122Abstract: The present disclosure relates to circuits for detecting a line short circuit and/or a line interruption in a differentially operated line network, comprising at least one control circuit configured to control at least one common-mode signal of the differentially operated line network vis-à-vis a predefined common-mode signal variable and to indicate a line short circuit and/or a line interruption in the differentially operated line network if at least one control or controlled variable of the control circuit exceeds a predefined threshold value.Type: ApplicationFiled: October 26, 2021Publication date: May 5, 2022Inventors: Mario MOTZ, Florian BRUGGER, Carlos Humberto GARCIA ROJAS, Francesco POLO, Tobias WERTH
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Patent number: 10506318Abstract: In accordance with an embodiment, a circuit includes an amplifier and a programmable capacitor coupled between an output of the first non-inverting and the input of the first amplifier.Type: GrantFiled: July 25, 2018Date of Patent: December 10, 2019Assignee: INFINEON TECHNOLOGIES AGInventors: Francesco Polo, Richard Gaggl
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Patent number: 10313773Abstract: An embodiment amplifier circuit includes a pair of subcircuits that includes a first subcircuit and a second subcircuit, each of which includes a buffer amplifier and a feedback circuit that includes a feedback capacitor. The amplifier circuit also includes a pair of output terminals. The first subcircuit and the second subcircuit each generate a different output signal of a pair of output signals that includes a first output signal and a second output signal. The amplifier circuit is configured for receiving a positive differential input signal at the first subcircuit, receiving a negative differential input signal at the second subcircuit, and receiving the pair of output signals at the pair of output terminals. The amplifier circuit is also configured for transmitting the first output signal to the feedback circuit of the first subcircuit, and transmitting the second output signal to the feedback circuit of the second subcircuit.Type: GrantFiled: January 8, 2018Date of Patent: June 4, 2019Assignee: INFINEON TECHNOLOGIES AGInventors: Francesco Polo, Richard Gaggl
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Patent number: 10250999Abstract: A circuit for biasing a MEMS microphone includes a first group of serially-coupled transistors coupled between a first node and a second node, a second group of serially-coupled transistors coupled between the first node and the second node, and a voltage divider circuit coupled to the second node having a number of outputs, a first group of outputs being coupled to corresponding control nodes associated with the first group of serially-coupled transistors, and a second group of outputs different from the first group of outputs coupled to corresponding control nodes associated with the second group of serially-coupled transistors, the control nodes being either bulk nodes or gate nodes.Type: GrantFiled: September 18, 2017Date of Patent: April 2, 2019Assignee: INFINEON TECHNOLOGIES AGInventors: Francesco Polo, Richard Gaggl, Benno Muehlbacher, Luca Valli
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Publication number: 20190090066Abstract: A circuit for biasing a MEMS microphone includes a first group of serially-coupled transistors coupled between a first node and a second node, a second group of serially-coupled transistors coupled between the first node and the second node, and a voltage divider circuit coupled to the second node having a number of outputs, a first group of outputs being coupled to corresponding control nodes associated with the first group of serially-coupled transistors, and a second group of outputs different from the first group of outputs coupled to corresponding control nodes associated with the second group of serially-coupled transistors, the control nodes being either bulk nodes or gate nodes.Type: ApplicationFiled: September 18, 2017Publication date: March 21, 2019Inventors: Francesco Polo, Richard Gaggl, Benno Muehlbacher, Luca Valli
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Publication number: 20180332377Abstract: In accordance with an embodiment, a circuit includes an amplifier and a programmable capacitor coupled between an output of the first non-inverting and the input of the first amplifier.Type: ApplicationFiled: July 25, 2018Publication date: November 15, 2018Inventors: Francesco Polo, Richard Gaggl
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Publication number: 20180132024Abstract: An embodiment amplifier circuit includes a pair of subcircuits that includes a first subcircuit and a second subcircuit, each of which includes a buffer amplifier and a feedback circuit that includes a feedback capacitor. The amplifier circuit also includes a pair of output terminals. The first subcircuit and the second subcircuit each generate a different output signal of a pair of output signals that includes a first output signal and a second output signal. The amplifier circuit is configured for receiving a positive differential input signal at the first subcircuit, receiving a negative differential input signal at the second subcircuit, and receiving the pair of output signals at the pair of output terminals. The amplifier circuit is also configured for transmitting the first output signal to the feedback circuit of the first subcircuit, and transmitting the second output signal to the feedback circuit of the second subcircuit.Type: ApplicationFiled: January 8, 2018Publication date: May 10, 2018Inventors: Francesco Polo, Richard Gaggl
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Patent number: 9897504Abstract: A measurement method includes generating, by a sensor, a response signal in response to an excitation signal. The method also includes generating a sampling clock signal in accordance with a pseudo-random jitter, and sampling the response signal in accordance with the sampling clock signal to determine a plurality of digital samples. The method also includes combining the plurality of digital samples to form a measurement sample.Type: GrantFiled: March 30, 2016Date of Patent: February 20, 2018Assignee: INFINEON TECHNOLOGIES AGInventors: Andreas Wiesbauer, Christian Ebner, Ernesto Romani, Stephan Mechnig, Joseph Hufschmitt, Christian Jenkner, Francesco Polo
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Patent number: 9866939Abstract: An embodiment amplifier circuit includes a pair of subcircuits that includes a first subcircuit and a second subcircuit, each of which includes a buffer amplifier and a feedback circuit that includes a feedback capacitor. The amplifier circuit also includes a pair of output terminals. The first subcircuit and the second subcircuit each generate a different output signal of a pair of output signals that includes a first output signal and a second output signal. The amplifier circuit is configured for receiving a positive differential input signal at the first subcircuit, receiving a negative differential input signal at the second subcircuit, and receiving the pair of output signals at the pair of output terminals. The amplifier circuit is also configured for transmitting the first output signal to the feedback circuit of the first subcircuit, and transmitting the second output signal to the feedback circuit of the second subcircuit.Type: GrantFiled: February 23, 2016Date of Patent: January 9, 2018Assignee: INFINEON TECHNOLOGIES AGInventors: Francesco Polo, Richard Gaggl
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Publication number: 20170245034Abstract: An embodiment amplifier circuit includes a pair of subcircuits that includes a first subcircuit and a second subcircuit, each of which includes a buffer amplifier and a feedback circuit that includes a feedback capacitor. The amplifier circuit also includes a pair of output terminals. The first subcircuit and the second subcircuit each generate a different output signal of a pair of output signals that includes a first output signal and a second output signal. The amplifier circuit is configured for receiving a positive differential input signal at the first subcircuit, receiving a negative differential input signal at the second subcircuit, and receiving the pair of output signals at the pair of output terminals. The amplifier circuit is also configured for transmitting the first output signal to the feedback circuit of the first subcircuit, and transmitting the second output signal to the feedback circuit of the second subcircuit.Type: ApplicationFiled: February 23, 2016Publication date: August 24, 2017Inventors: Francesco Polo, Richard Gaggl
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Publication number: 20160305838Abstract: A measurement method includes generating, by a sensor, a response signal in response to an excitation signal. The method also includes generating a sampling clock signal in accordance with a pseudo-random jitter, and sampling the response signal in accordance with the sampling clock signal to determine a plurality of digital samples. The method also includes combining the plurality of digital samples to form a measurement sample.Type: ApplicationFiled: March 30, 2016Publication date: October 20, 2016Inventors: Andreas Wiesbauer, Christian Ebner, Ernesto Romani, Stephan Mechnig, Joseph Hufschmitt, Christian Jenkner, Francesco Polo