• Patent Title: Applying a positive feedback voltage to an electromechanical sensor utilizing a voltage-to-voltage converter to facilitate a reduction of charge flow in such sensor representing spring softening
  • Application No.: US16540852
    Application Date: 2019-08-14
  • Publication No.: US11085770B2
    Publication Date: 2021-08-10
  • Inventor: Joseph Seeger
  • Applicant: INVENSENSE, INC.
  • Applicant Address: US CA San Jose
  • Assignee: INVENSENSE, INC.
  • Current Assignee: INVENSENSE, INC.
  • Current Assignee Address: US CA San Jose
  • Agency: Amin, Turocy & Watson, LLP
  • Main IPC: G01C19/5776
  • IPC: G01C19/5776
Applying a positive feedback voltage to an electromechanical sensor utilizing a voltage-to-voltage converter to facilitate a reduction of charge flow in such sensor representing spring softening
Abstract:
Reducing, at a common sense electrode of a group of sensors of a system, a common charge flow due to a common motion of the group of sensors is presented herein. The group of electromechanical sensors generates a common charge flow as a result of a common motion of the group of electromechanical sensors and a differential charge flow as a result of a differential motion of the group of electromechanical sensors—respective sense elements of the group of electromechanical sensors being electrically connected at the common sense electrode. The system further comprises a voltage-to-voltage converter component that generates, via an output of the voltage-to-voltage converter component, a positive feedback voltage, and minimizes the common charge flow by coupling, via a defined feedback capacitance, the positive feedback voltage to the common sense electrode—the common sense electrode being electrically coupled to an input of the voltage-to-voltage converter component.
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