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公开(公告)号：US10928464B2
公开(公告)日：2021-02-23
申请号：US16149937
申请日：2018-10-02
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Pio Baorda , Paolo Angelini
Abstract: A Hall sensor compensation circuit includes an input node configured for receiving a bias signal for a Hall sensor. A bias node provides to the Hall sensor a compensated bias signal. A compensation network coupled between the input node and the bias node has a gain inversely proportional to Hall mobility, μn′, wherein the Hall sensing signal is temperature-compensated.
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公开(公告)号：US10794738B2
公开(公告)日：2020-10-06
申请号：US16049262
申请日：2018-07-30
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Dario Paci , Francesco Procopio , Carlo Valzasina , Paolo Angelini , Francesco Diazzi , Roberto Pio Baorda , Danilo Karim Kaddouri
Abstract: An integrated sensor device including a first die, housing a sensor element to detect a quantity external to the sensor device and transduce the external quantity into an electrical sensing signal; a second die mechanically coupled to the first die so that the first and second dies are stacked on one another along one and the same axis; and at least one heater of a resistive type integrated in the first die and/or in the second die, having a first conduction terminal and a second conduction terminal configured to couple respective first and second conduction terminals of a signal generator for causing an electric current to flow, in use, between the first and second conduction terminals of the heater and generate heat by the Joule effect. It is possible to carry out calibration in temperature of the sensor element.
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公开(公告)号：US10528197B2
公开(公告)日：2020-01-07
申请号：US15689908
申请日：2017-08-29
Applicant: STMicroelectronics S.r.l.
Inventor： Danilo Karim Kaddouri , Roberto Pio Baorda , Paolo Angelini
Abstract: A circuit includes a first transistor having a control terminal and a current path between first and second current path terminals. A second transistor has a control terminal and a current path between first and second current path terminals. The first current path terminal of the first transistor is coupled to the first current path terminal of the second transistor at an intermediate point. A first current buffer has an input and an output. The input of the first current buffer is coupled to the second current path terminal of the first transistor. A second current buffer has an input and an output, the input of the second current buffer being coupled to the second current path terminal of the second transistor. A summation node is coupled to the outputs of the first and second current buffer.
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公开(公告)号：US11761992B2
公开(公告)日：2023-09-19
申请号：US17664522
申请日：2022-05-23
Applicant: STMicroelectronics S.r.l.
Inventor： Paolo Angelini , Roberto Pio Baorda , Francesco Borgioli
IPC: G01R19/00 , H02J50/12 , G01R1/20 , G01R19/165
CPC classification number: G01R19/0092 , G01R1/203 , G01R19/16533 , H02J50/12 , H03F2200/481
Abstract: A current measurement circuit, for wireless charging systems, for instance, comprises a differential input configured to have applied an input voltage sensed across a shunt resistor traversed by a current to be measured, a voltage reversal switch arrangement selectively switchable to reverse the polarity of the input voltage as applied between a first and a second voltage sensing nodes as well as a first and a second current flow line between the voltage sensing nodes and ground. A difference resistor intermediate the two current flow lines is traversed by a current which is a function of the input voltage as applied to the first and second sensing nodes via the voltage reversal switch arrangement. First and second current sensing nodes at the two current flow lines are coupled to a differential current output via a current reversal switch arrangement selectively switchable to reverse the output current polarity.
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公开(公告)号：US20220283202A1
公开(公告)日：2022-09-08
申请号：US17664522
申请日：2022-05-23
Applicant: STMicroelectronics S.r.l.
Inventor： Paolo Angelini , Roberto Pio Baorda , Francesco Borgioli
IPC: G01R19/00 , H02J50/12 , G01R1/20 , G01R19/165
Abstract: A current measurement circuit, for wireless charging systems, for instance, comprises a differential input configured to have applied an input voltage sensed across a shunt resistor traversed by a current to be measured, a voltage reversal switch arrangement selectively switchable to reverse the polarity of the input voltage as applied between a first and a second voltage sensing nodes as well as a first and a second current flow line between the voltage sensing nodes and ground. A difference resistor intermediate the two current flow lines is traversed by a current which is a function of the input voltage as applied to the first and second sensing nodes via the voltage reversal switch arrangement. First and second current sensing nodes at the two current flow lines are coupled to a differential current output via a current reversal switch arrangement selectively switchable to reverse the output current polarity.
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Patent Agency Ranking
公开(公告)号：US10942228B2
公开(公告)日：2021-03-09
申请号：US16013559
申请日：2018-06-20
Applicant: STMicroelectronics S.r.l.
Inventor： Paolo Angelini , Roberto Pio Baorda , Danilo Karim Kaddouri
Abstract: A compensation circuit receives a sensing signal from a Hall sensor and outputs a compensated Hall sensing signal. The compensation circuit has a gain that is inversely proportional to Hall sensor drift mobility. The compensated Hall sensing signal is temperature-compensated.
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17.发明申请公开(公告)号：US20140312919A1
公开(公告)日：2014-10-23
申请号：US14322244
申请日：2014-07-02
Inventor： Kien Beng Tan , Ernesto Lasalandra , Tommaso Ungaretti , Yannick Guedon , Dianbo Guo , Paolo Angelini , Giovanni Carlo Tripoli
CPC classification number: G01R27/2605 , G06F3/0416 , G06F3/044 , G06F2203/04104
Abstract: Capacitance sensing circuits and methods are provided. A dual mode capacitance sensing circuit includes a capacitance-to-voltage converter having an amplifier and an integration capacitance coupled between an output and an inverting input of the amplifier, and a switching circuit responsive to mutual mode control signals for a controlling signal supplied from a capacitive touch matrix to the capacitive to voltage converter in a mutual capacitance sensing mode and responsive to self mode control signals for controlling signals supplied from the capacitive touch matrix to the capacitance-to-voltage converter in a self capacitance sensing mode, wherein the capacitance sensing circuit is configurable for operation in the mutual capacitance sensing mode or the self capacitance sensing mode.
Abstract translation: 提供电容感测电路和方法。 双模电容感测电路包括具有放大器和耦合在放大器的输出和反相输入端之间的积分电容的电容 - 电压转换器，以及响应于从模拟信号提供的控制信号的相互模式控制信号的开关电路 电容式触摸矩阵到互电容感测模式中的电容到电压转换器，并且响应于用于在自电容感测模式中控制从电容式触摸矩阵提供给电容 - 电压转换器的信号的自模式控制信号，其中电容感测 电路可配置为在互电容感测模式或自身电容感测模式下工作。
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公开(公告)号：US11366140B2
公开(公告)日：2022-06-21
申请号：US17102037
申请日：2020-11-23
Applicant: STMicroelectronics S.r.l.
Inventor： Paolo Angelini , Roberto Pio Baorda , Francesco Borgioli , Marco Garbarino
IPC: G01R19/00 , H02J50/12 , G01R1/20 , G01R19/165
Abstract: A current measurement circuit, for wireless charging systems, for instance, comprises a differential input configured to have applied an input voltage sensed across a shunt resistor traversed by a current to be measured, a voltage reversal switch arrangement selectively switchable to reverse the polarity of the input voltage as applied between a first and a second voltage sensing nodes as well as a first and a second current flow line between the voltage sensing nodes and ground. A difference resistor intermediate the two current flow lines is traversed by a current which is a function of the input voltage as applied to the first and second sensing nodes via the voltage reversal switch arrangement. First and second current sensing nodes at the two current flow lines are coupled to a differential current output via a current reversal switch arrangement selectively switchable to reverse the output current polarity.
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公开(公告)号：US11256280B2
公开(公告)日：2022-02-22
申请号：US17187107
申请日：2021-02-26
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Pio Baorda , Paolo Angelini
Abstract: An embodiment voltage-current converter circuit comprises a first amplifier and a second amplifier having homologous first input nodes configured to receive a voltage signal therebetween as well as homologous second input nodes having a resistor coupled therebetween. First and second current mirror circuits are provided comprising first input transistors having their control terminal coupled to the output nodes of the amplifiers. First and second current sensing circuitry having first and second current output nodes are coupled to the current mirror output nodes of the current mirror circuits and configured to provide therebetween a current which is a function of the voltage signal between the homologous first input nodes of the amplifier.
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公开(公告)号：US20210271281A1
公开(公告)日：2021-09-02
申请号：US17187107
申请日：2021-02-26
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Pio Baorda , Paolo Angelini
Abstract: An embodiment voltage-current converter circuit comprises a first amplifier and a second amplifier having homologous first input nodes configured to receive a voltage signal therebetween as well as homologous second input nodes having a resistor coupled therebetween. First and second current mirror circuits are provided comprising first input transistors having their control terminal coupled to the output nodes of the amplifiers. First and second current sensing circuitry having first and second current output nodes are coupled to the current mirror output nodes of the current mirror circuits and configured to provide therebetween a current which is a function of the voltage signal between the homologous first input nodes of the amplifier.
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