- Patent Title: Magnetic sensor including a Lorentz force transducer driven at a frequency different from the resonance frequency, and method for driving a Lorentz force transducer
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Application No.: US15584672Application Date: 2017-05-02
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Publication No.: US10254355B2Publication Date: 2019-04-09
- Inventor: Giacomo Langfelder , Alessandro Tocchio , Dario Paci
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group LLP
- Priority: ITTO2013A0653 20130731
- Main IPC: G01R33/028
- IPC: G01R33/028 ; G01R33/02 ; G01R33/00 ; H01L41/08 ; H01L41/113 ; G01R33/038
Abstract:
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.
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