#FAIRCHILD SEMICONDUCTOR [US]

Micro-electro-mechanical-system (MEMS) driver

In an example, a driver for a micro-electro-mechanical-system (MEMS) device can include a first input configured to receive a first command signal including an oscillatory command signal, a second inp…

DRIVE·Oct 16·1 min read

B81B7/02 FAIRCHILD SEMICONDUCTOR [US]

MEMS quadrature cancellation and signal demodulation

In certain examples, a quadrature cancellation apparatus can include a drive charge amplifier configured to couple to a proof mass of a MEMS device and to provide oscillation motion information, a fir…

DRIVE·Oct 16·1 min read

B81B7/008 FAIRCHILD SEMICONDUCTOR [US]

MEMS device quadrature phase shift cancellation

This document discusses, among other things, apparatus and methods for quadrature cancellation of sense information from a micro-electromechanical system (MEMS) device, such as a MEMS gyroscope. In ce…

DRIVE·Oct 9·1 min read

B81B7/00 FAIRCHILD SEMICONDUCTOR [US]

Accurate ninety degree phase shifter

An apparatus includes a drive signal circuit for MEMS sensor. The drive signal circuit includes an input configured to receive a voltage signal representative of charge generated by the MEMS sensor, a…

DRIVE·Oct 9·1 min read

G01C19/5776 FAIRCHILD SEMICONDUCTOR [US]

Self test of mems gyroscope with asics integrated capacitors

An apparatus includes a MEMS gyroscope sensor including a first sensing capacitor and a second sensing capacitor and an IC. The IC includes a switch circuit configured to electrically decouple the fir…

DRIVE·Oct 9·1 min read

G01C19/5776 FAIRCHILD SEMICONDUCTOR [US]

Mems device front-end charge amplifier

This document discusses, among other things, apparatus and methods for a front-end charge amplifier. In certain examples, a front-end charge amplifier for a microelectromechanical system (MEMS) device…

DRIVE·Oct 9·1 min read

G01C19/5776 FAIRCHILD SEMICONDUCTOR [US]

Mems device automatic-gain control loop for mechanical amplitude drive

This document discusses, among other things, apparatus and methods for digital automatic gain control for driving a MEMS device, such as a proof mass. In an example, an apparatus can include a driver …

DRIVE·Oct 9·1 min read

B81B7/00 FAIRCHILD SEMICONDUCTOR [US]