Title:
ジャイロスコープのための感度増幅器ならびに関連システムおよび方法
Document Type and Number:
Japanese Patent JP6785900
Kind Code:
B2
Abstract:
Sense amplifiers for use in connection with microelectromechanical system (MEMS) gyroscopes are described. The sense amplifiers may be configured to change the level of a gyroscope signal, i.e., the signal produced by a gyroscope in response to angular motion, to a level suitable for processing circuitry arranged to infer the angular velocity. The sense amplifier may further provide a DC discharge path allowing for discharge of the DC component of the output signal. The DC discharge path may include an anti-aliasing filter and a resistive circuit. The anti-aliasing filter may filter the output signal to maintain the resistive circuit in the linear region. The anti-aliasing filter may be designed with a frequency response such that discrete frequency sub-bands are blocked or at least attenuated. The frequency sub-bands may be tuned to substantially match the gyroscope's resonant frequency and its integer multiples.
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Inventors:
Jiefen Yang
William A. Clark
William A. Clark
Application Number:
JP2019026426A
Publication Date:
November 18, 2020
Filing Date:
February 18, 2019
Export Citation:
Assignee:
Analog Devices Inc.
International Classes:
G01C19/5726
Domestic Patent References:
| JP4299607A | ||||
| JP59112718A | ||||
| JP2002185298A |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe