Invention Grant
- Patent Title: Microelectromechanical gyroscope with position control driving and method for controlling a microelectromechanical gyroscope
- Patent Title (中): 具有位置控制驱动的微机电陀螺仪和微机电陀螺仪控制方法
-
Application No.: US12792599Application Date: 2010-06-02
-
Publication No.: US08375789B2Publication Date: 2013-02-19
- Inventor: Luciano Prandi , Carlo Caminada
- Applicant: Luciano Prandi , Carlo Caminada
- 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 PLLC
- Priority: ITTO2009A0420 20090603
- Main IPC: G01C19/56
- IPC: G01C19/56

Abstract:
A MEMS gyroscope includes: a microstructure having a fixed structure, a driving mass, movable with respect to the fixed structure according to a driving axis, and a sensing mass, mechanically coupled to the driving mass so as to be drawn in motion according to the driving axis and movable with respect to the driving mass according to a sensing axis, in response to rotations of the microstructure; and a driving device, for keeping the driving mass in oscillation with a driving frequency. The driving device includes a discrete-time sensing interface, for detecting a position of the driving mass with respect to the driving axis and a control stage for controlling the driving frequency on the basis of the position of the driving mass.
Public/Granted literature
Information query