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1.发明授权公开(公告)号：US08667842B2
公开(公告)日：2014-03-11
申请号：US13707389
申请日：2012-12-06
发明人： Luciano Prandi
IPC分类号： G01C19/00
CPC分类号： H01G7/06 , G01C19/5726 , G01C19/5755 , Y10T29/49826
摘要： An electronic device includes a capacitive component with variable capacitance coupled to a control stage that controls the capacitance, based on a reference signal, with a reference frequency, and an excitation signal, that is a multiple of the reference frequency. The capacitive component includes a variable capacitive network having a plurality of switched capacitors, each being switchable between a first configuration, where it is connected between connection terminals of the capacitive component, and a second configuration, where it is connected at most to one of the connection terminals. The control stage includes a logic module, coupled to the variable capacitive network for switching periodically each capacitor between the first configuration and the second configuration. A sign circuit, coupled to the capacitive component supplies a control signal having edges concordant with the excitation signal in one half-period of each cycle of the reference signal and discordant edges in the other half-period.
摘要翻译： 电子设备包括具有可变电容的电容部件，所述电容部件与控制级相耦合，所述控制级基于参考频率的参考信号和作为参考频率的倍数的激励信号来控制电容。 电容性部件包括具有多个开关电容器的可变电容网络，每个开关电容器可在第一配置之间切换，其中第一配置连接在电容部件的连接端子与第二配置之间，在第二配置中，其最多连接到 连接端子。 控制级包括耦合到可变电容网络的逻辑模块，用于在第一配置和第二配置之间周期性地切换每个电容器。 耦合到电容部件的符号电路在参考信号的每个周期的一个半周期和另一个半周期中的不一致边沿提供具有与激励信号一致的边的控制信号。
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2.发明授权Microelectromechanical gyroscope with open loop reading device and control method 有权具有开环读取装置和控制方法的微机电陀螺仪公开(公告)号：US09217641B2
公开(公告)日：2015-12-22
申请号：US14332211
申请日：2014-07-15
IPC分类号： G01C19/00 , G01C19/5712 , G01C19/5726 , G01C19/5762
CPC分类号： G01C19/5712 , G01C19/5726 , G01C19/5762
摘要： A microelectromechanical gyroscope that includes a first mass oscillatable according to a first axis; an inertial sensor, including a second mass, drawn along by the first mass and constrained so as to oscillate according to a second axis, in response to a rotation of the gyroscope; a driving device coupled to the first mass so as to form a feedback control loop and configured to maintain the first mass in oscillation at a resonance frequency; and an open-loop reading device coupled to the inertial sensor for detecting displacements of the second mass according to the second axis. The driving device includes a read signal generator for supplying to the inertial sensor at least one read signal having the form of a square-wave signal of amplitude that sinusoidally varies with the resonance frequency.
摘要翻译： 一种微机电陀螺仪，其包括可根据第一轴可振荡的第一质量; 包括第二质量的惯性传感器，其响应于所述陀螺仪的旋转而被所述第一质量拉伸并被约束以便根据第二轴线振荡; 耦合到所述第一质量块的驱动装置，以便形成反馈控制回路并且被配置为将所述第一质量块以共振频率保持在振荡状态; 以及耦合到所述惯性传感器的开环读取装置，用于根据所述第二轴检测所述第二质量块的位移。 驱动装置包括一个读信号发生器，用于向惯性传感器提供至少一个具有振幅方波信号的形式的读信号，正弦波信号随谐振频率正弦变化。
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3.发明授权公开(公告)号：US09212910B2
公开(公告)日：2015-12-15
申请号：US13648215
申请日：2012-10-09
IPC分类号： G01C15/14 , G01P3/44 , G01C19/5776
CPC分类号： G01C19/5776
摘要： A microelectromechanical gyroscope having a supporting structure; a mass capacitively coupled to the supporting structure and movable with a first degree of freedom and a second degree of freedom, in response to rotations of the supporting structure about an axis; driving components, for keeping the mass in oscillation according to the first degree of freedom; a read interface for detecting transduction signals indicating the capacitive coupling between the mass and the supporting structure; and capacitive compensation modules for modifying the capacitive coupling between the mass and the supporting structure. Calibration components detect systematic errors from the transduction signals and modify the capacitive compensation modules as a function of the transduction signals so as to attenuate the systematic errors.
摘要翻译： 一种具有支撑结构的微电子陀螺仪; 电容耦合到所述支撑结构并且响应于所述支撑结构围绕轴的旋转以第一自由度和第二自由度移动的质量; 驱动部件，用于根据第一自由度保持质量摆动; 用于检测表示所述质量块和所述支撑结构之间的电容耦合的转导信号的读取界面; 以及用于修改质量块和支撑结构之间的电容耦合的电容补偿模块。 校准组件检测来自转导信号的系统误差，并修改电容补偿模块作为转导信号的函数，以便衰减系统误差。
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4.发明授权Switched-capacitor band-pass filter of a discrete-time type, in particular for cancelling offset and low-frequency noise of switched-capacitor stages 有权离散时间类型的开关电容带通滤波器，特别是用于消除开关电容器级的偏移和低频噪声公开(公告)号：US09106208B2
公开(公告)日：2015-08-11
申请号：US13928024
申请日：2013-06-26
CPC分类号： H03H11/126 , H03H19/004
摘要： A band-pass filter made up by an operational amplifier and by an input circuit. The input circuit is formed by a capacitive filtering element, connected to the input of the operational amplifier; a coupling switch, coupled between an input node and the capacitive filtering element; a capacitive sampling element, coupled between the input of the filter and the input node; and a sampling switch, coupled between the input node and a reference-potential line. The coupling switch and the input sampling switch close in phase opposition according to a succession of undesired components sampling and sensing steps, so that the capacitive sampling element forms a sampler for sampling the undesired component in the undesired components sampling step, in the absence of the component of interest, and forms a subtractor of the undesired components from the input signal in the sensing step.
摘要翻译： 由运算放大器和输入电路构成的带通滤波器。 输入电路由电容滤波元件形成，连接到运算放大器的输入端; 耦合开关，耦合在输入节点和电容滤波元件之间; 耦合在滤波器的输入端和输入节点之间的电容性采样元件; 以及耦合在输入节点和参考电位线之间的采样开关。 耦合开关和输入采样开关根据一系列不期望的分量采样和感测步骤接近相位，使得电容采样元件形成采样器，用于在不期望的分量采样步骤中采样不期望的分量，在不存在 并且在感测步骤中从输入信号形成不期望的分量的减法器。
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公开(公告)号：US09083338B2
公开(公告)日：2015-07-14
申请号：US13951312
申请日：2013-07-25
发明人： Arber Cauli , Luciano Prandi , Carlo Caminada
IPC分类号： H03K19/21 , H03K19/173 , H03K5/1252
CPC分类号： H03K19/173 , H03K5/1252
摘要： A method of protection from noise of a digital signal generated by a comparator, including the steps of generating an output signal that switches from a first logic state to a second logic state at a first switching of logic state of the digital signal; detecting a change from the first logic state to the second logic state of the output signal; and inhibiting further switchings of the output signal for a first time interval after the change from the first logic state to the second logic state.
摘要翻译： 一种防止由比较器产生的数字信号的噪声的方法，包括以下步骤：在数字信号的逻辑状态的第一次切换时产生从第一逻辑状态切换到第二逻辑状态的输出信号; 检测从所述第一逻辑状态到所述输出信号的第二逻辑状态的变化; 以及在从所述第一逻辑状态到所述第二逻辑状态的改变之后，禁止所述输出信号进一步切换第一时间间隔。
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6.发明授权Microelectromechanical device with position control driving and method for controlling a microelectromechanical device 有权具有位置控制驱动的微机电装置和用于控制微机电装置的方法公开(公告)号：US08752429B2
公开(公告)日：2014-06-17
申请号：US13739430
申请日：2013-01-11
发明人： Luciano Prandi , Carlo Caminada
IPC分类号： G01C19/56
CPC分类号： G01C19/56 , G01C19/5726 , G01C19/5762 , H03F3/70
摘要： A MEMS gyroscope includes: a microstructure having a fixed structure, a driving mass, movable with respect to the fixed structure according to a driving axis, and a sensing mass, mechanically coupled to the driving mass so as to be drawn in motion according to the driving axis and movable with respect to the driving mass according to a sensing axis, in response to rotations of the microstructure; and a driving device, for keeping the driving mass in oscillation with a driving frequency. The driving device includes a discrete-time sensing interface, for detecting a position of the driving mass with respect to the driving axis and a control stage for controlling the driving frequency on the basis of the position of the driving mass.
摘要翻译： MEMS陀螺仪包括：具有固定结构的微结构，可根据驱动轴相对于固定结构移动的驱动质量块，以及感测质量块，机械地联接到驱动质量块，以便根据 响应于微结构的旋转，驱动轴线和根据感测轴线可相对于驱动质量块移动; 以及驱动装置，用于保持驱动质量以驱动频率振荡。 驱动装置包括用于检测驱动质量块相对于驱动轴的位置的离散时间感测接口和用于基于驱动质量块的位置来控制驱动频率的控制级。
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7.发明申请MICROELECTROMECHANICAL GYROSCOPE WITH SELF-CALIBRATION FUNCTION AND METHOD OF CALIBRATING A MICROELECTROMECHANICAL GYROSCOPE 有权具有自校准功能的微电子光学陀螺仪和微电子光学仪器的校准方法公开(公告)号：US20130031950A1
公开(公告)日：2013-02-07
申请号：US13648215
申请日：2012-10-09
IPC分类号： G01C25/00
CPC分类号： G01C19/5776
摘要： A microelectromechanical gyroscope having a supporting structure; a mass capacitively coupled to the supporting structure and movable with a first degree of freedom and a second degree of freedom, in response to rotations of the supporting structure about an axis; driving components, for keeping the mass in oscillation according to the first degree of freedom; a read interface for detecting transduction signals indicating the capacitive coupling between the mass and the supporting structure; and capacitive compensation modules for modifying the capacitive coupling between the mass and the supporting structure. Calibration components detect systematic errors from the transduction signals and modify the capacitive compensation modules as a function of the transduction signals so as to attenuate the systematic errors.
摘要翻译： 一种具有支撑结构的微电子陀螺仪; 电容耦合到所述支撑结构并且响应于所述支撑结构围绕轴的旋转以第一自由度和第二自由度移动的质量; 驱动部件，用于根据第一自由度保持质量摆动; 用于检测表示所述质量块和所述支撑结构之间的电容耦合的转导信号的读取界面; 以及用于修改质量块和支撑结构之间的电容耦合的电容补偿模块。 校准组件检测来自转导信号的系统误差，并修改电容补偿模块作为转导信号的函数，以便衰减系统误差。
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8.发明授权Microelectromechanical device having an oscillating mass and method for controlling a microelectromechanical device having an oscillating mass 有权具有振荡质量的微机电装置和用于控制具有振荡质量的微机电装置的方法公开(公告)号：US08960001B2
公开(公告)日：2015-02-24
申请号：US13904847
申请日：2013-05-29
摘要： A microelectromechanical device includes a body, a movable mass, elastically connected to the body and movable in accordance with a degree of freedom, and a driving device, coupled to the movable mass and configured to maintain the movable mass in oscillation at a steady working frequency in a normal operating mode. The microelectromechanical device moreover includes a start-up device, which is activatable in a start-up operating mode and is configured to compare a current oscillation frequency of a first signal correlated to oscillation of the movable mass with a reference frequency, and for deciding, on the basis of the comparison between the current oscillation frequency and the reference frequency, whether to supply to the movable mass a forcing signal packet so as to transfer energy to the movable mass.
摘要翻译： 微机电装置包括主体，可移动质量体，弹性地连接到主体并且可以根据自由度移动;以及驱动装置，其联接到可移动质量块，并且被配置为将可移动质量块稳定在稳定的工作频率 在正常的操作模式。 微机电装置还包括启动装置，其可以在启动操作模式下激活，并且被配置为将与可移动质量块的振荡相关的第一信号的当前振荡频率与参考频率进行比较， 基于当前振荡频率和参考频率之间的比较，是否向可移动质量块施加强制信号分组，以将能量传递到可移动质量块。
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9.发明授权公开(公告)号：US08813565B2
公开(公告)日：2014-08-26
申请号：US13789496
申请日：2013-03-07
发明人： Carlo Caminada , Luciano Prandi
IPC分类号： G01C19/56
CPC分类号： G01C19/56 , G01C19/5712
摘要： A multi-axis gyroscope includes a microelectromechanical structure configured to rotate with respective angular velocities about respective reference axes, and including detection elements, which are sensitive in respective detection directions and generate respective detection quantities as a function of projections of the angular velocities in the detection directions. The gyroscope including a reading circuit that generates electrical output signals, each correlated to a respective one of the angular velocities, as a function of the detection quantities. The reading circuit includes a combination stage that combines electrically with respect to one another electrical quantities correlated to detection quantities generated by detection elements sensitive to detection directions different from one another, so as to take into account a non-zero angle of inclination of the detection directions with respect to the reference axes.
摘要翻译： 多轴陀螺仪包括微机电结构，其被配置为围绕相应的参考轴线以相应的角速度旋转，并且包括在各个检测方向上敏感的检测元件，并且产生作为检测中的角速度的投影的函数的相应检测量 方向。 陀螺仪包括读取电路，其产生电输出信号，每个电流输出信号与各个角速度相关，作为检测量的函数。 读取电路包括组合级，其相对于彼此电连接的电量相关联，所述电量与对于彼此不同的检测方向敏感的检测元件产生的检测量相关联，以便考虑检测的非零倾斜角度 相对于参考轴的方向。
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公开(公告)号：US20130307581A1
公开(公告)日：2013-11-21
申请号：US13951312
申请日：2013-07-25
发明人： Arber Cauli , Luciano Prandi , Carlo Caminada
IPC分类号： H03K19/173
CPC分类号： H03K19/173 , H03K5/1252
摘要： A method of protection from noise of a digital signal generated by a comparator, including the steps of generating an output signal that switches from a first logic state to a second logic state at a first switching of logic state of the digital signal; detecting a change from the first logic state to the second logic state of the output signal; and inhibiting further switchings of the output signal for a first time interval after the change from the first logic state to the second logic state.
摘要翻译： 一种防止由比较器产生的数字信号的噪声的方法，包括以下步骤：在数字信号的逻辑状态的第一次切换时产生从第一逻辑状态切换到第二逻辑状态的输出信号; 检测从所述第一逻辑状态到所述输出信号的第二逻辑状态的变化; 以及在从所述第一逻辑状态到所述第二逻辑状态的改变之后，禁止所述输出信号进一步切换第一时间间隔。
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