Low power inertial sensor architecture and methods

    公开(公告)号:US11236999B1

    公开(公告)日:2022-02-01

    申请号:US16566793

    申请日:2019-09-10

    Applicant: mCube, Inc.

    Abstract: A controller for a MEMS gyroscope includes a first portion for generating a drive signal in response to an output from drive capacitors of the MEMS gyroscope, wherein the output signal has a resonant frequency and a phase, a second portion for determining a sampling signal in response to the output, wherein the sampling signal has a frequency that is a multiple of the resonant frequency, and has the phase, a multiplexer for outputting a multiplexed data comprising first data signals from first capacitors and second capacitors of the MEMS gyroscope multiplexed in response to the sampling signal, and a processing portion for reducing the resonant frequency from the multiplexed data.

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