公开(公告)号：EP1207371B1

公开(公告)日：2007-01-10

申请号：EP00830753.0

申请日：2000-11-16

Applicant: STMicroelectronics S.r.l.

Inventor： Chiesa, Enrico

IPC: G01D3/06 ,  G01P15/13 ,  G01P21/00 ,  G01P15/125

CPC classification number: G01P15/0888 ,  G01D3/066 ,  G01P15/125 ,  G01P15/131 ,  G01P21/00

公开(公告)号：EP1207371A9

公开(公告)日：2003-08-13

申请号：EP00830753.0

申请日：2000-11-16

Applicant: STMicroelectronics S.r.l.

Inventor： Chiesa, Enrico

IPC: G01D3/06 ,  G01P15/13 ,  G01P21/00 ,  G01P15/125

CPC classification number: G01P15/0888 ,  G01D3/066 ,  G01P15/125 ,  G01P15/131 ,  G01P21/00

Abstract: The sensing device (50') comprises a microelectromechanical structure (1) made of semiconductor material, and a control loop (53') for controlling the microelectromechanical structure (1). The microelectromechanical structure (1) comprises a stator element (2) and a rotor element (4) electrostatically coupled together, and the control loop (53') comprises a position interface (56) supplying a position signal (V OUT ) indicative of the position of the rotor element (4), and a one-bit quantizer (66) receiving the position signal (V OUT ) and supplying a corresponding bit sequence (OUT). The sensing device (50') further comprises a calibration device (24, 84, 86) for calibrating the microelectromechanical structure (1), and including a microactuator (24) made of semiconductor material and coupled to the rotor element (4), and a driving circuit (84, 86) for driving the microactuator (24), and receiving the bit sequence (OUT) and supplying to the microactuator (24) a driving signal (V CAL ) correlated to a mean value (MBS) of the bit sequence (OUT) in a given time window.

公开(公告)号：EP1207371A1

公开(公告)日：2002-05-22

申请号：EP00830753.0

申请日：2000-11-16

Applicant: STMicroelectronics S.r.l.

Inventor： Chiesa, Enrico

IPC: G01D3/06 ,  G01P15/13 ,  G01P21/00 ,  G01P15/125

CPC classification number: G01P15/0888 ,  G01D3/066 ,  G01P15/125 ,  G01P15/131 ,  G01P21/00

Abstract: The sensing device (50') comprises a microelectromechanical structure (1) made of semiconductor material, and a control loop (53') for controlling the microelectromechanical structure (1). The microelectromechanical structure (1) comprises a stator element (2) and a rotor element (4) electrostatically coupled together, and the control loop (53') comprises a position interface (56) supplying a position signal (V OUT ) indicative of the position of the rotor element (4), and a one-bit quantizer (66) receiving the position signal (V OUT ) and supplying a corresponding bit sequence (OUT). The sensing device (50') further comprises a calibration device (24, 84, 86) for calibrating the microelectromechanical structure (1), and including a microactuator (24) made of semiconductor material and coupled to the rotor element (4), and a driving circuit (84, 86) for driving the microactuator (24), and receiving the bit sequence (OUT) and supplying to the microactuator (24) a driving signal (V CAL ) correlated to a mean value (MBS) of the bit sequence (OUT) in a given time window.

Abstract translation: 感测装置（50'）包括由半导体材料制成的微机电结构（1）和用于控制微机电结构（1）的控制回路（53'）。 微机电结构（1）包括静电耦合在一起的定子元件（2）和转子元件（4），并且控制回路（53'）包括位置接口（56），其提供指示位置 以及接收位置信号（VOUT）并提供相应位序列（OUT）的一位量化器（66）。 感测装置（50'）还包括用于校准微机电结构（1）的校准装置（24,84,86），并且包括由半导体材料制成并联接到转子元件（4）的微致动器（24），以及 用于驱动所述微致动器（24）的驱动电路（84,86），以及接收所述位序列（OUT）并向所述微致动器（24）提供与所述位序列的平均值（MBS）相关的驱动信号（VCAL） （OUT）在给定的时间窗口。

公开(公告)号：EP1708362B1

公开(公告)日：2008-12-31

申请号：EP05425184.8

申请日：2005-03-31

Applicant: STMicroelectronics S.r.l.

Inventor： Tronconi, Michele ,  Chiesa, Enrico ,  Pasolini, Fabio

IPC: G06F3/033 ,  G01P15/08 ,  G01P15/18 ,  H03H17/04

CPC classification number: H03H17/04 ,  G01P15/0891 ,  G01P15/18

Abstract: A digital high-pass filter (12) has an input (IN), an output (OUT), and a subtractor stage (20), having a first input terminal, a second input terminal and an output terminal. The first input terminal of the subtractor stage (20) is connected to the input (IN) of the digital high-pass filter (12) and the output terminal is connected to the output (OUT) of the digital high-pass filter (12). A recursive circuit branch (21) is connected between the output (OUT) of the digital high-pass filter (12) and the second input terminal of the subtractor stage (20). Within the recursive circuit branch (21) are cascaded an accumulation stage (23), constituted by an integrator circuit, and a divider stage (24). The cutoff frequency (f t ) of the digital high-pass filter (12) is variable according to a dividing factor (den) of the divider stage (24) .

公开(公告)号：EP1708362A1

公开(公告)日：2006-10-04

申请号：EP05425184.8

申请日：2005-03-31

Applicant: STMicroelectronics S.r.l.

Inventor： Tronconi, Michele ,  Chiesa, Enrico ,  Pasolini, Fabio

IPC: H03H17/04

CPC classification number: H03H17/04 ,  G01P15/0891 ,  G01P15/18

Abstract: A digital high-pass filter (12) has an input (IN), an output (OUT), and a subtractor stage (20), having a first input terminal, a second input terminal and an output terminal. The first input terminal of the subtractor stage (20) is connected to the input (IN) of the digital high-pass filter (12) and the output terminal is connected to the output (OUT) of the digital high-pass filter (12). A recursive circuit branch (21) is connected between the output (OUT) of the digital high-pass filter (12) and the second input terminal of the subtractor stage (20). Within the recursive circuit branch (21) are cascaded an accumulation stage (23), constituted by an integrator circuit, and a divider stage (24). The cutoff frequency (f t ) of the digital high-pass filter (12) is variable according to a dividing factor (den) of the divider stage (24) .

Abstract translation: 数字高通滤波器（12）具有输入（IN），输出（OUT）和减法器级（20），具有第一输入端，第二输入端和输出端。 减法器级（20）的第一输入端连接到数字高通滤波器（12）的输入端（IN），输出端连接到数字高通滤波器（12）的输出（OUT） ）。 递归电路分支（21）连接在数字高通滤波器（12）的输出（OUT）和减法器级（20）的第二输入端之间。 在递归电路支路（21）内，级联由积分器电路和分频器级（24）组成的累加级（23）。 数字高通滤波器（12）的截止频率（f t）根据分频器级（24）的分频系数（den）可变。