公开(公告)号：US20150345946A1

公开(公告)日：2015-12-03

申请号：US14556634

申请日：2014-12-01

Applicant: FREESCALE SEMICONDUCTOR, INC.

Inventor： THIERRY CASSAGNES ,  HUGUES BEAULATON ,  LAURENT CORNIBERT ,  MARIANNE MALEYRAN ,  VOLKER WAHL

IPC: G01C19/5712

CPC classification number: G01C19/5776

Abstract: 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.

Abstract translation: 描述了一种用于振动陀螺仪的驱动电路。 驱动电路包括数字移相器，可变增益放大器和脉冲信号发生器，其被布置成产生具有与振动陀螺仪的驱动频率基本相等的频率的数字脉冲信号。 控制器被布置成将振动陀螺仪的驱动致动单元与第一启动时间段内的脉冲信号发生器的输出相连，在第二启动时段期间将数字移相器的输出连接到 可变增益放大器在测量时间段。 此外，描述振动陀螺仪装置和驱动振动陀螺仪的方法。

公开(公告)号：US20150155840A1

公开(公告)日：2015-06-04

申请号：US14559895

申请日：2014-12-03

Applicant: FREESCALE SEMICONDUCTOR, INC.

Inventor： JEAN-CHRISTOPHE NANAN ,  JEAN-JACQUES BOUNY ,  CEDRIC CASSAN ,  JOSEPH STAUDINGER ,  HUGUES BEAULATON

IPC: H03F3/217

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US20150155830A1

公开(公告)日：2015-06-04

申请号：US14559898

申请日：2014-12-03

Applicant: FREESCALE SEMICONDUCTOR, INC.

Inventor： JOSEPH STAUDINGER ,  HUGUES BEAULATON ,  DAMON G. HOLMES ,  JEAN-CHRISTOPHE NANAN

IPC: H03F1/02 ,  H03F3/19 ,  H03F3/217

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。