公开(公告)号：US09835455B2

公开(公告)日：2017-12-05

申请号：US14556634

申请日：2014-12-01

申请人： FREESCALE SEMICONDUCTOR, INC.

发明人： Thierry Cassagnes ,  Hugues Beaulaton ,  Laurent Cornibert ,  Marianne Maleyran ,  Volker Wahl

IPC分类号： G01C19/5776

CPC分类号： G01C19/5776

摘要： A drive circuitry for a vibration gyroscope is described. The drive circuitry comprises a digital phase shifter, a variable gain amplifier and a pulse signal generator arranged to generate a digital pulse signal having a frequency substantially equal to a drive frequency of the vibration gyroscope. A controller is arranged to connect drive actuation units of the vibration gyroscope to outputs of the pulse signal generator during a first start-up time period, to outputs of the digital phase shifter during a second start-up time period, and to outputs of the variable gain amplifier during a measurement time period. Furthermore, a vibration gyroscope device and a method of driving a vibration gyroscope are described.

公开(公告)号：US09369089B2

公开(公告)日：2016-06-14

申请号：US14559898

申请日：2014-12-03

申请人： FREESCALE SEMICONDUCTOR, INC.

发明人： Joseph Staudinger ,  Hugues Beaulaton ,  Damon G. Holmes ,  Jean-Christophe Nanan

IPC分类号： H03F3/217 ,  H03F1/02 ,  H03F3/19 ,  H03F3/189 ,  H03F3/21 ,  H03F3/24 ,  H03F3/30 ,  H03F3/60 ,  H03F3/72

CPC分类号： H03F1/0205 ,  H03F3/189 ,  H03F3/19 ,  H03F3/211 ,  H03F3/2171 ,  H03F3/2175 ,  H03F3/2176 ,  H03F3/2178 ,  H03F3/245 ,  H03F3/30 ,  H03F3/602 ,  H03F3/72 ,  H03F2200/09 ,  H03F2200/171 ,  H03F2200/451 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/21106 ,  H03F2203/21142

摘要： An embodiment of an amplifier includes N (N>1) switch-mode power amplifier (SMPA) branches. Each SMPA branch includes two drive signal inputs and one SMPA branch output. A module coupled to the amplifier samples an input RF signal, and produces combinations of drive signals based on the samples. When an SMPA branch receives a first combination of drive signals, it produces an output signal at one voltage level. Conversely, when the SMPA branch receives a different second combination of drive signals, it produces the output signal at another voltage level. At least two of the SMPA branches produce output signals having different absolute magnitudes. A combiner combines the output signals from all of the SMPA branches to produce a combined output signal that may have, at any given time, one of 2*N+1 quantization states.

摘要翻译： 放大器的一个实施例包括N（N> 1）个开关模式功率放大器（SMPA）分支。 每个SMPA分支包括两个驱动信号输入和一个SMPA分支输出。 耦合到放大器的模块对输入RF信号进行采样，并且基于样本产生驱动信号的组合。 当SMPA分支接收到驱动信号的第一组合时，它产生一个电压电平的输出信号。 相反，当SMPA分支接收到不同的驱动信号的第二组合时，它产生另一个电压电平的输出信号。 至少两个SMPA分支产生具有不同绝对值的输出信号。 组合器组合来自所有SMPA分支的输出信号以产生在任何给定时间可以具有2×N + 1个量化状态之一的组合输出信号。

公开(公告)号：US09515623B2

公开(公告)日：2016-12-06

申请号：US14559895

申请日：2014-12-03

申请人： FREESCALE SEMICONDUCTOR, INC.

发明人： Jean-Christophe Nanan ,  Jean-Jacques Bouny ,  Cedric Cassan ,  Joseph Staudinger ,  Hugues Beaulaton

IPC分类号： H03F3/68 ,  H03F3/217 ,  H03F3/189 ,  H03F3/21 ,  H03F3/24 ,  H03F3/30 ,  H03F3/60 ,  H03F3/72 ,  H03M1/06 ,  H03M1/78

CPC分类号： H03F3/2178 ,  H03F3/189 ,  H03F3/211 ,  H03F3/2171 ,  H03F3/2175 ,  H03F3/2176 ,  H03F3/245 ,  H03F3/30 ,  H03F3/604 ,  H03F3/72 ,  H03F2200/09 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/21106 ,  H03F2203/21142 ,  H03F2203/21145 ,  H03F2203/21157 ,  H03M1/0682 ,  H03M1/78

摘要： An embodiment of an amplifier includes N (N>1) switch-mode power amplifier (SMPA) branches. Each SMPA branch includes two drive signal inputs and one SMPA branch output. A module coupled to the amplifier samples an input RF signal, and produces combinations of drive signals based on the samples. When an SMPA branch receives a first combination of drive signals, it produces an output signal at a first voltage level. Conversely, when the SMPA branch receives a different second combination of drive signals, it produces the output signal at a different second voltage level. Finally, when the SMPA branch receives a different third combination of drive signals, it produces the output signal at a voltage level of substantially zero. A combiner combines the output signals from all of the SMPA branches to produce a combined output signal that may have, at any given time, one of 2*N+1 quantization states.

摘要翻译： 放大器的一个实施例包括N（N> 1）个开关模式功率放大器（SMPA）分支。 每个SMPA分支包括两个驱动信号输入和一个SMPA分支输出。 耦合到放大器的模块对输入RF信号进行采样，并且基于样本产生驱动信号的组合。 当SMPA分支接收到驱动信号的第一组合时，其产生处于第一电压电平的输出信号。 相反，当SMPA分支接收到不同的驱动信号的第二组合时，它产生不同的第二电压电平的输出信号。 最后，当SMPA分支接收到不同的驱动信号的第三组合时，它产生基本为零的电压电平的输出信号。 组合器组合来自所有SMPA分支的输出信号以产生在任何给定时间可以具有2×N + 1个量化状态之一的组合输出信号。

公开(公告)号：US20160231119A1

公开(公告)日：2016-08-11

申请号：US14794894

申请日：2015-07-09

申请人： Freescale Semiconductor, Inc.

发明人： Hugues Beaulaton ,  Philippe Patrick Calmettes ,  Thierry Dominique Yves Cassagnes

IPC分类号： G01C19/5726 ,  G01C19/5733

CPC分类号： G01C19/5726 ,  G01C19/5762

摘要： A system is provided that includes a mechanical resonator, and an analog circuit coupled to the mechanical resonator. The analog circuit is arranged to receive a mechanical resonator measurement signal having a quadrature error from the mechanical resonator, and to extract a quadrature error signal from the mechanical resonator measurement signal using a quadrature clock. A digital quadrature controller is coupled to the analog circuit and is arranged to generate a quadrature error compensation signal from the extracted quadrature error signal and apply the quadrature error compensation signal to the mechanical resonator or the mechanical resonator measurement signal to reduce quadrature error in the mechanical resonator measurement signal error.

摘要翻译： 提供了一种包括机械谐振器和耦合到机械谐振器的模拟电路的系统。 模拟电路被布置为接收来自机械谐振器的具有正交误差的机械谐振器测量信号，并且使用正交时钟从机械谐振器测量信号中提取正交误差信号。 数字正交控制器耦合到模拟电路，并被布置成从提取的正交误差信号产生正交误差补偿信号，并将正交误差补偿信号施加到机械谐振器或机械谐振器测量信号，以减小机械中的正交误差 谐振器测量信号误差。