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公开(公告)号：US20180062588A1
公开(公告)日：2018-03-01
申请号：US15790518
申请日：2017-10-23
Applicant: STMicroelectronics S.r.l.
Inventor： Andrea Barbieri , Sergio Pernici
CPC classification number: H03F1/3211 , H03F3/45197 , H03F3/45273 , H03F3/45708 , H03F2200/261 , H03F2203/45044 , H03F2203/45101 , H03F2203/45116 , H03F2203/45136 , H03F2203/45151 , H03F2203/45156 , H03F2203/45361 , H03F2203/45492 , H03F2203/45506 , H04R3/00 , H04R19/005 , H04R19/04 , H04R2201/003
Abstract: A fully balanced differential difference amplifier includes a first differential input stage that receives an input voltage and a second differential input stage that receives a common-mode voltage. A first resistive-degeneration group is coupled to the first differential input and a second resistive-degeneration group is coupled to the second differential input. A differential output stage generates an output voltage. A first switch is coupled in parallel to the first resistive-degeneration group and a second switch is coupled in parallel with the second resistive-degeneration group. The first and second switches are driven into the closed state when the voltage input assumes a first value such that said first input stage operates in the linear region, and are driven into the open state when the voltage input assumes a second value, higher than the first value, such that the first input stage operates in a non-linear region.
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公开(公告)号：US20160156319A1
公开(公告)日：2016-06-02
申请号：US14863184
申请日：2015-09-23
Applicant: STMicroelectronics S.r.l.
Inventor： Andrea Barbieri , Sergio Pernici
CPC classification number: H03F1/3211 , H03F3/45197 , H03F3/45273 , H03F3/45708 , H03F2200/261 , H03F2203/45044 , H03F2203/45101 , H03F2203/45116 , H03F2203/45136 , H03F2203/45151 , H03F2203/45156 , H03F2203/45361 , H03F2203/45492 , H03F2203/45506 , H04R3/00 , H04R19/005 , H04R19/04 , H04R2201/003
Abstract: A FBDDA amplifier comprising: a first differential input stage, which receives an input voltage; a second differential input stage, which receives a common-mode voltage; a first resistive-degeneration group coupled to the first differential input; a second resistive-degeneration group coupled to the second differential input; a differential output stage, generating an output voltage; a first switch coupled in parallel to the first resistive-degeneration group; and a second switch coupled in parallel to the second resistive-degeneration group. The first and second switches are driven into the closed state when the voltage input assumes a first value such that said first input stage operates in the linear region, and are driven into the open state when the voltage input assumes a second value, higher than the first value, such that the first input stage operates in a non-linear region.
Abstract translation: 一种FBDDA放大器，包括：第一差分输入级，其接收输入电压; 第二差分输入级，其接收共模电压; 耦合到所述第一差分输入的第一电阻变性组; 耦合到所述第二差分输入的第二电阻变性组; 差分输出级，产生输出电压; 与第一电阻变性组并联耦合的第一开关; 以及与第二电阻变性组并联耦合的第二开关。 当电压输入为第一值时，第一和第二开关被驱动到关闭状态，使得所述第一输入级在线性区域中工作，并且当电压输入为第二值时被驱动到打开状态，高于 第一值，使得第一输入级在非线性区域中操作。
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公开(公告)号：US09961451B2
公开(公告)日：2018-05-01
申请号：US14858997
申请日：2015-09-18
Applicant: STMicroelectronics S.r.l.
Inventor： Germano Nicollini , Silvia Adorno , Andrea Barbieri , Federica Barbieri , Sebastiano Conti , Edoardo Marino , Sergio Pernici
CPC classification number: H04R19/005 , H04R19/02 , H04R19/04 , H04R2201/003 , H04R2499/11 , H04R2499/15
Abstract: A MEMS acoustic transducer has: a detection structure, which generates an electrical detection quantity as a function of a detected acoustic signal; and an electronic interface circuit, which is operatively coupled to the detection structure and generates an electrical output quantity as a function of the electrical detection quantity. The detection structure has a first micromechanical structure of a capacitive type and a second micromechanical structure of a capacitive type, each including a membrane that faces and is capacitively coupled to a rigid electrode and defines a respective first detection capacitor and second detection capacitor; the electronic interface circuit defines an electrical connection in series of the first detection capacitor and second detection capacitor between a biasing line and a reference line, and further has a first single-output amplifier and a second single-output amplifier, which are coupled to a respective one of the first detection capacitor and the second detection capacitor and have a respective first output terminal and second output terminal, between which the electrical output quantity is present.
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Patent Agency Ranking
4.发明授权Biasing circuit for a MEMS acoustic transducer with reduced start-up time 有权具有减少启动时间的MEMS声学换能器的偏置电路公开(公告)号：US09462395B2
公开(公告)日：2016-10-04
申请号：US14746252
申请日：2015-06-22
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Germano Nicollini , Andrea Barbieri , Federica Barbieri , Alberto Danioni , Edoardo Marino , Sergio Pernici
CPC classification number: H04R19/04 , H04R3/00 , H04R2201/003
Abstract: A MEMS acoustic transducer device has a capacitive microelectromechanical sensing structure and a biasing circuit. The biasing circuit includes a voltage-boosting circuit that supplies a boosted voltage on an output terminal, and a high-impedance insulating circuit element set between the output terminal and a terminal of the sensing structure, which defines a first high-impedance node associated with the insulating circuit element. The biasing circuit has: a pre-charge stage that generates a first pre-charge voltage on a first output thereof, as a function of, and distinct from, the boosted voltage; and a first switch element set between the first output and the first high-impedance node. The first switch element is operable for selectively connecting the first high-impedance node to the first output, during a phase of start-up of the biasing circuit, for biasing the first high-impedance node to the first pre-charge voltage.
Abstract translation: MEMS声学换能器装置具有电容微机电感测结构和偏置电路。 偏置电路包括在输出端子上提供升压电压的升压电路和设置在感测结构的输出端子和端子之间的高阻抗绝缘电路元件，其限定与第一高阻抗节点相关联的第一高阻抗节点 绝缘电路元件。 偏置电路具有：预充电阶段，其在其第一输出上产生作为升压电压的函数并与其不同的第一预充电电压; 以及设置在第一输出和第一高阻抗节点之间的第一开关元件。 第一开关元件可操作用于在偏置电路的启动阶段期间选择性地将第一高阻抗节点连接到第一输出，以将第一高阻抗节点偏置到第一预充电电压。
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5.发明申请BIASING CIRCUIT FOR A MEMS ACOUSTIC TRANSDUCER WITH REDUCED START-UP TIME 有权具有降低启动时间的MEMS声学传感器的偏置电路公开(公告)号：US20160029129A1
公开(公告)日：2016-01-28
申请号：US14746252
申请日：2015-06-22
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Germano Nicollini , Andrea Barbieri , Federica Barbieri , Alberto Danioni , Edoardo Marino , Sergio Pernici
IPC: H04R19/04
CPC classification number: H04R19/04 , H04R3/00 , H04R2201/003
Abstract: A MEMS acoustic transducer device has a capacitive microelectromechanical sensing structure and a biasing circuit. The biasing circuit includes a voltage-boosting circuit that supplies a boosted voltage on an output terminal, and a high-impedance insulating circuit element set between the output terminal and a terminal of the sensing structure, which defines a first high-impedance node associated with the insulating circuit element. The biasing circuit has: a pre-charge stage that generates a first pre-charge voltage on a first output thereof, as a function of, and distinct from, the boosted voltage; and a first switch element set between the first output and the first high-impedance node. The first switch element is operable for selectively connecting the first high-impedance node to the first output, during a phase of start-up of the biasing circuit, for biasing the first high-impedance node to the first pre-charge voltage.
Abstract translation: MEMS声学换能器装置具有电容微机电感测结构和偏置电路。 偏置电路包括在输出端子上提供升压电压的升压电路和设置在感测结构的输出端子和端子之间的高阻抗绝缘电路元件，其限定与第一高阻抗节点相关联的第一高阻抗节点 绝缘电路元件。 偏置电路具有：预充电阶段，其在其第一输出上产生作为升压电压的函数并与其不同的第一预充电电压; 以及设置在第一输出和第一高阻抗节点之间的第一开关元件。 第一开关元件可操作用于在偏置电路的启动阶段期间选择性地将第一高阻抗节点连接到第一输出，以将第一高阻抗节点偏置到第一预充电电压。
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公开(公告)号：US20160173992A1
公开(公告)日：2016-06-16
申请号：US14858997
申请日：2015-09-18
Applicant: STMicroelectronics S.r.l.
Inventor： Germano Nicollini , Silvia Adorno , Andrea Barbieri , Federica Barbieri , Sebastiano Conti , Edoardo Marino , Sergio Pernici
CPC classification number: H04R19/005 , H04R19/02 , H04R19/04 , H04R2201/003 , H04R2499/11 , H04R2499/15
Abstract: A MEMS acoustic transducer has: a detection structure, which generates an electrical detection quantity as a function of a detected acoustic signal; and an electronic interface circuit, which is operatively coupled to the detection structure and generates an electrical output quantity as a function of the electrical detection quantity. The detection structure has a first micromechanical structure of a capacitive type and a second micromechanical structure of a capacitive type, each including a membrane that faces and is capacitively coupled to a rigid electrode and defines a respective first detection capacitor and second detection capacitor; the electronic interface circuit defines an electrical connection in series of the first detection capacitor and second detection capacitor between a biasing line and a reference line, and further has a first single-output amplifier and a second single-output amplifier, which are coupled to a respective one of the first detection capacitor and the second detection capacitor and have a respective first output terminal and second output terminal, between which the electrical output quantity is present.
Abstract translation: MEMS声换能器具有：检测结构，其产生作为检测到的声信号的函数的电检测量; 以及电子接口电路，其可操作地耦合到所述检测结构并且产生作为所述电检测量的函数的电输出量。 该检测结构具有电容型的第一微机械结构和电容式的第二微机械结构，每个微机械结构均包括面对电容耦合到刚性电极并且限定相应的第一检测电容器和第二检测电容器的膜; 电子接口电路在偏置线和参考线之间限定了第一检测电容器和第二检测电容器串联的电连接，并且还具有第一单输出放大器和第二单输出放大器，其耦合到 第一检测电容器和第二检测电容器中的一个，并且具有各自的第一输出端子和第二输出端子，其间存在电输出量。
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公开(公告)号：US10243520B2
公开(公告)日：2019-03-26
申请号：US15790518
申请日：2017-10-23
Applicant: STMicroelectronics S.r.l.
Inventor： Andrea Barbieri , Sergio Pernici
Abstract: A fully balanced differential difference amplifier includes a first differential input stage that receives an input voltage and a second differential input stage that receives a common-mode voltage. A first resistive-degeneration group is coupled to the first differential input and a second resistive-degeneration group is coupled to the second differential input. A differential output stage generates an output voltage. A first switch is coupled in parallel to the first resistive-degeneration group and a second switch is coupled in parallel with the second resistive-degeneration group. The first and second switches are driven into the closed state when the voltage input assumes a first value such that said first input stage operates in the linear region, and are driven into the open state when the voltage input assumes a second value, higher than the first value, such that the first input stage operates in a non-linear region.
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公开(公告)号：US09800212B2
公开(公告)日：2017-10-24
申请号：US14863184
申请日：2015-09-23
Applicant: STMicroelectronics S.r.l.
Inventor： Andrea Barbieri , Sergio Pernici
CPC classification number: H03F1/3211 , H03F3/45197 , H03F3/45273 , H03F3/45708 , H03F2200/261 , H03F2203/45044 , H03F2203/45101 , H03F2203/45116 , H03F2203/45136 , H03F2203/45151 , H03F2203/45156 , H03F2203/45361 , H03F2203/45492 , H03F2203/45506 , H04R3/00 , H04R19/005 , H04R19/04 , H04R2201/003
Abstract: A FBDDA amplifier comprising: a first differential input stage, which receives an input voltage; a second differential input stage, which receives a common-mode voltage; a first resistive-degeneration group coupled to the first differential input; a second resistive-degeneration group coupled to the second differential input; a differential output stage, generating an output voltage; a first switch coupled in parallel to the first resistive-degeneration group; and a second switch coupled in parallel to the second resistive-degeneration group. The first and second switches are driven into the closed state when the voltage input assumes a first value such that said first input stage operates in the linear region, and are driven into the open state when the voltage input assumes a second value, higher than the first value, such that the first input stage operates in a non-linear region.
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