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1.发明申请公开(公告)号：US20180038692A1
公开(公告)日：2018-02-08
申请号：US15458704
申请日：2017-03-14
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Daniele Prati , Carlo Valzasina , Tiziano Chiarillo , Pasquale Franco
IPC: G01C19/5712 , G01C19/5776
CPC classification number: G01C19/5712 , G01C19/574 , G01C19/5776
Abstract: A MEMS gyroscope, wherein a suspended mass is mobile with respect to a supporting structure. The mobile mass is affected by quadrature error caused by a quadrature moment; a driving structure is coupled to the suspended mass for controlling the movement of the mobile mass in a driving direction at a driving frequency. Motion-sensing electrodes, coupled to the mobile mass, detect the movement of the mobile mass in the sensing direction and quadrature-compensation electrodes are coupled to the mobile mass to generate a compensation moment opposite to the quadrature moment. The gyroscope is configured to bias the quadrature-compensation electrodes with a compensation voltage so that the difference between the resonance frequency of the mobile mass and the driving frequency has a preset frequency-mismatch value.
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公开(公告)号：US09231540B2
公开(公告)日：2016-01-05
申请号：US14304589
申请日：2014-06-13
Inventor： MarcoOrazio Cavallaro , Serge Ramet , Tiziano Chiarillo
CPC classification number: H03F3/45179 , H03F1/308 , H03F3/3013 , H03F3/45183 , H03F2203/45054
Abstract: A class AB operational amplifier includes an input stage, an output stage and a level shifter stage to control the quiescent current of the output stage and to transfer the signal from the input stage to the output stage, and a control circuit of the level shifter stage. The control circuit includes a transistor differential pair having a differential input terminals and the differential voltage at the differential terminals of the differential pair controls the level shifter stage.
Abstract translation: AB类运算放大器包括输入级，输出级和电平移位级，以控制输出级的静态电流并将信号从输入级传送到输出级，以及电平转换级的控制电路 。 控制电路包括具有差分输入端的晶体管差分对，差分对的差分端的差分电压控制电平转换级。
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Patent Agency Ranking
3.发明授权公开(公告)号：US10444013B2
公开(公告)日：2019-10-15
申请号：US15458704
申请日：2017-03-14
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Daniele Prati , Carlo Valzasina , Tiziano Chiarillo , Pasquale Franco
IPC: G01C19/5712 , G01C19/5776 , G01C19/574
Abstract: A MEMS gyroscope, wherein a suspended mass is mobile with respect to a supporting structure. The mobile mass is affected by quadrature error caused by a quadrature moment; a driving structure is coupled to the suspended mass for controlling the movement of the mobile mass in a driving direction at a driving frequency. Motion-sensing electrodes, coupled to the mobile mass, detect the movement of the mobile mass in the sensing direction and quadrature-compensation electrodes are coupled to the mobile mass to generate a compensation moment opposite to the quadrature moment. The gyroscope is configured to bias the quadrature-compensation electrodes with a compensation voltage so that the difference between the resonance frequency of the mobile mass and the driving frequency has a preset frequency-mismatch value.
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4.发明申请公开(公告)号：US20130127536A1
公开(公告)日：2013-05-23
申请号：US13677496
申请日：2012-11-15
Inventor： Marco Orazio Cavallaro , Serge Ramet , Tiziano Chiarillo
IPC: H03F3/45
CPC classification number: H03F3/45 , H03F3/45183 , H03F3/45659
Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.
Abstract translation: 全差分运算放大器包括差分输入级，至少一个输出级和与输入级相连的共模反馈电路。 差分输入级包括差分对晶体管和用于差分对晶体管的偏置电路。 启动电路用于检测输入级的差分对的晶体管的工作状态，并响应于此来启动偏置电路。
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公开(公告)号：US11984860B2
公开(公告)日：2024-05-14
申请号：US17839335
申请日：2022-06-13
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Modaffari , Paolo Pesenti , Mario Maiore , Tiziano Chiarillo
CPC classification number: H03F3/70 , G01R27/2605 , H03F3/45968 , H03F2200/375
Abstract: A circuit includes an amplifier, a bias voltage node, and a first set of switches configured, based on a first reset signal having a first value, to couple first and second input nodes to the bias voltage node and to couple first and second output nodes of the amplifier. First and second feedback branches each include a respective RC network including a plurality of capacitances. The first and second feedback branches further include a second set of switches intermediate input nodes and the capacitances, and a third set of switches intermediate input nodes and the plurality of capacitances. These switches selectively couple the capacitances to the input nodes and output nodes, based on a second reset signal having a first value. The second reset signal keeps the first value for a determined time interval exceeding a time interval in which the first reset signal has the first value.
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6.发明授权公开(公告)号：US08854136B2
公开(公告)日：2014-10-07
申请号：US13677496
申请日：2012-11-15
Inventor： Marco Orazio Cavallaro , Serge Ramet , Tiziano Chiarillo
IPC: H03F3/45
CPC classification number: H03F3/45 , H03F3/45183 , H03F3/45659
Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.
Abstract translation: 全差分运算放大器包括差分输入级，至少一个输出级和与输入级相连的共模反馈电路。 差分输入级包括差分对晶体管和用于差分对晶体管的偏置电路。 启动电路用于检测输入级的差分对的晶体管的工作状态，并响应于此来启动偏置电路。
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7.发明授权公开(公告)号：US11778358B2
公开(公告)日：2023-10-03
申请号：US17567777
申请日：2022-01-03
Applicant: STMicroelectronics S.r.l.
Inventor： Enrico Rosario Alessi , Fabio Passaniti , Tiziano Chiarillo , Massimiliano Pesaturo
CPC classification number: H04R1/1016 , G01R29/12 , H04R1/1041 , H04R29/00 , H04R2420/07 , H04R2460/15
Abstract: A detection device includes a pressure sensor, which provides a pressure signal indicative of an ambient pressure in an operating environment. An electrostatic-charge-variation sensor provides a charge-variation signal indicative of a variation of electrostatic charge associated with the operating environment, and processing circuitry is coupled to the pressure sensor and to the electrostatic-charge-variation sensor so as to receive the pressure signal and the charge-variation signal, and jointly processes the pressure signal and the charge-variation signal for detecting a variation between a first operating environment and a second operating environment for the detection device. The second operating environment is different from the first operating environment.
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