首页> 外国专利> Systems and methods to overcome DC offsets in amplifiers used to start resonant micro-electro mechanical systems

Systems and methods to overcome DC offsets in amplifiers used to start resonant micro-electro mechanical systems

机译:克服用于启动谐振微机电系统的放大器中的直流偏移的系统和方法

摘要

Systems and methods for insuring successful initiation of a resonating micro-electro mechanical systems (MEMS). An example system includes a resonating sensor, a drive device, a charge amplifier, and a voltage gain circuit. At start up, the charge amplifier and voltage gain circuit receives signals from the resonating sensor, compensates this signal for DC offsets, and generates a clock signal for the drive, thus placing the resonating sensor in a steady state operating mode. The circuit includes a plurality of gain switches that are toggled to produce a glitch in the signal associated with the received signal. The glitch overcomes the DC offset. A comparator generates the clock signal for the drive device if a signal associated with the received signal exceeds a reference signal.
机译:用于确保成功启动谐振微机电系统(MEMS)的系统和方法。示例系统包括谐振传感器,驱动装置,电荷放大器和电压增益电路。在启动时,电荷放大器和电压增益电路从谐振传感器接收信号,为直流偏移补偿该信号,并为驱动器生成时钟信号,从而将谐振传感器置于稳态工作模式。该电路包括多个增益开关,这些增益开关被触发以在与接收信号相关的信号中产生毛刺。毛刺克服了直流偏移。如果与接收到的信号关联的信号超过参考信号,则比较器为驱动设备生成时钟信号。

著录项

  • 公开/公告号US7859352B2

    专利类型

  • 公开/公告日2010-12-28

    原文格式PDF

  • 申请/专利权人 MICHAEL SUTTON;

    申请/专利号US20080252176

  • 发明设计人 MICHAEL SUTTON;

    申请日2008-10-15

  • 分类号H03B5/32;H01L41/107;H03L5/00;

  • 国家 US

  • 入库时间 2022-08-21 18:07:59

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号