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    • 32. 发明申请
    • Resonant micro-electro-mechanical system with analog driving
    • 具有模拟驱动的谐振微机电系统
    • US20060033588A1
    • 2006-02-16
    • US11195347
    • 2005-08-02
    • Carlo CaminadaErnesto LasalandraLuciano Prandi
    • Carlo CaminadaErnesto LasalandraLuciano Prandi
    • H03B5/30
    • G01C19/5726
    • A resonant micro-electro-mechanical system includes a microstructure having a mass which is free to oscillate in accordance with a predetermined degree of freedom, and a driving device coupled to the mass for maintaining the mass in oscillation at a resonance frequency. The driving device includes a differential sense amplifier supplying first signals indicative of a velocity of oscillation of the mass, and an actuation and control stage supplying second signals for driving the mass on the basis of the first signals. The driving device moreover includes a filtering circuit of a high-pass type, which is connected between the differential sense amplifier and the actuation and control stage, and has a bandpass that includes the resonance frequency.
    • 共振微电子机械系统包括具有根据预定自由度自由振荡的质量的微结构,以及耦合到质量块的驱动装置,用于将质量保持在谐振频率处的振荡。 驱动装置包括差分读出放大器,其提供表示质量的振荡速度的第一信号,以及致动和控制级,其基于第一信号提供用于驱动质量的第二信号。 此外,驱动装置还包括连接在差分读出放大器与驱动与控制级之间的高通滤波电路,并且具有包括谐振频率的带通。
    • 34. 发明授权
    • Calibration circuit for a band-gap reference voltage
    • 带隙参考电压的校准电路
    • US06346802B2
    • 2002-02-12
    • US09862651
    • 2001-05-21
    • Ernesto LasalandraNicola Bagnalasta
    • Ernesto LasalandraNicola Bagnalasta
    • G05F316
    • G05F3/265
    • The present invention relates to a calibration circuit for a band-gap voltage comprising first and second transistors working at different current density, having the base electrodes connected to each other, a first resistance connecting the emitter electrodes of said first and second transistors, said first transistor having a second resistance in series with its emitter electrode, said first and second transistors being connected with a circuitry of transistors, configured as a mirror, characterized by comprising a current source, generating a current in function of the value present in a digital word, composed by “i” bit, connected by means of first and second switches to respective first and second circuit nodes so as to select in which node to insert the current and so as to select the necessary quantity of current to make the calibration.
    • 本发明涉及一种用于带隙电压的校准电路,包括以不同电流密度工作的第一和第二晶体管,其基极彼此连接,第一电阻连接所述第一和第二晶体管的发射极,所述第一 晶体管具有与其发射极电极串联的第二电阻,所述第一和第二晶体管与被配置为反射镜的晶体管电路连接,其特征在于包括电流源,产生电流存在于数字字中的值 由“i”位组成,通过第一和第二开关连接到相应的第一和第二电路节点,以选择哪个节点插入电流,并选择必要的电流量进行校准。
    • 36. 发明申请
    • MICROELECTROMECHANICAL GYROSCOPE WITH OPEN LOOP READING DEVICE AND CONTROL METHOD
    • 具有开环读取装置和控制方法的微电子光学陀螺仪
    • US20120006114A1
    • 2012-01-12
    • US13242769
    • 2011-09-23
    • Carlo CaminadaLuciano PrandiErnesto Lasalandra
    • Carlo CaminadaLuciano PrandiErnesto Lasalandra
    • G01C19/56
    • G01C19/5712G01C19/5726G01C19/5762
    • 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.
    • 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。
    • 37. 发明授权
    • Microelectromechanical gyroscope with self-test function and control method
    • 具有自检功能和控制方式的微电子陀螺仪
    • US07980135B2
    • 2011-07-19
    • US12030742
    • 2008-02-13
    • Luciano PrandiCarlo CaminadaErnesto Lasalandra
    • Luciano PrandiCarlo CaminadaErnesto Lasalandra
    • G01C19/00
    • G01C23/005G01C19/5726G01C19/5762
    • A microelectromechanical gyroscope having a microstructure that includes a first mass and a second mass, wherein the first mass is oscillatable according to a first axis and the second mass is constrained to the first mass so as to be drawn along by the first mass according to the first axis and to oscillate according to a second axis, in response to a rotation of the microstructure, a driving device coupled to the microstructure to maintain the first mass in oscillation at the driving frequency, and a reading device that detects displacements of the second mass according to the second axis. The gyroscope is provided with a self-test actuation system coupled to the second mass for applying an electrostatic force at the driving frequency so as to move the second mass according to the second axis.
    • 具有包括第一质量和第二质量的微结构的微机电陀螺仪,其中所述第一质量可根据第一轴线振荡,并且所述第二质量块被约束为所述第一质量,以便根据所述第一质量块沿着所述第一质量块 第一轴线,并且响应于所述微结构的旋转而根据第二轴线振荡,耦合到所述微结构以将所述第一质量块保持在所述驱动频率处振荡的驱动装置;以及读取装置,其检测所述第二质量块的位移 根据第二轴。 陀螺仪设置有耦合到第二质量块的自检致动系统,用于在驱动频率处施加静电力,以便根据第二轴线移动第二质量块。
    • 40. 发明授权
    • Resonant micro-electro-mechanical system with analog driving
    • 具有模拟驱动的谐振微机电系统
    • US07305880B2
    • 2007-12-11
    • US11195347
    • 2005-08-02
    • Carlo CaminadaErnesto LasalandraLuciano Prandi
    • Carlo CaminadaErnesto LasalandraLuciano Prandi
    • G01P15/00G01P9/00
    • G01C19/5726
    • A resonant micro-electro-mechanical system includes a microstructure having a mass which is free to oscillate in accordance with a predetermined degree of freedom, and a driving device coupled to the mass for maintaining the mass in oscillation at a resonance frequency. The driving device includes a differential sense amplifier supplying first signals indicative of a velocity of oscillation of the mass, and an actuation and control stage supplying second signals for driving the mass on the basis of the first signals. The driving device moreover includes a filtering circuit of a high-pass type, which is connected between the differential sense amplifier and the actuation and control stage, and has a bandpass that includes the resonance frequency.
    • 共振微电子机械系统包括具有根据预定自由度自由振荡的质量的微结构,以及耦合到质量块的驱动装置,用于将质量保持在谐振频率处的振荡。 驱动装置包括差分读出放大器,其提供表示质量的振荡速度的第一信号,以及致动和控制级,其基于第一信号提供用于驱动质量的第二信号。 此外,驱动装置还包括连接在差分读出放大器与驱动与控制级之间的高通滤波电路,并且具有包括谐振频率的带通。