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Magnetic sensor including a Lorentz force transducer driven at a frequency different from the resonance frequency, and method for driving a Lorentz force transducer

机译:包括以不同于共振频率的频率驱动的洛伦兹力传感器的磁传感器以及用于驱动洛伦兹力传感器的方法

摘要

A magnetic field sensor includes a die and a current generator in the die. The current generator generates a driving current. A Lorentz force transducer is also formed in the die and coupled to the current generator to obtain measurements of a magnetic field based upon the Lorentz force. The magnetic field has a resonance frequency and the current generator drives the Lorentz force sensor with the driving current having a non-zero frequency different from the resonance frequency.
机译:磁场传感器包括管芯和管芯中的电流发生器。电流发生器产生驱动电流。洛伦兹力传感器也形成在模具中,并耦合到电流发生器,以基于洛伦兹力获得磁场的测量值。磁场具有共振频率,并且电流发生器以具有不同于共振频率的非零频率的驱动电流来驱动洛伦兹力传感器。

著录项

  • 公开/公告号US10254355B2

    专利类型

  • 公开/公告日2019-04-09

    原文格式PDF

  • 申请/专利权人 STMICROELECTRONICS S.R.L.;

    申请/专利号US201715584672

  • 申请日2017-05-02

  • 分类号G01R33/028;G01R33/02;G01R33/00;H01L41/08;H01L41/113;G01R33/038;

  • 国家 US

  • 入库时间 2022-08-21 12:09:36

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