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Microgyroscope control system using a high-order band-pass continuous-time sigma-delta modulator
Dong, Yufeng; Kraft, Michaël; Hedenstierna, N. et al.
2007In TRANSDUCERS 2007
Peer reviewed
 

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Abstract :
[en] The paper presents a novel 6th order continuous-time, force-feedback band-pass sigma-delta modulator control system for the sense mode of micromachined vibratory gyroscopes. Compared with the architecture using a low-pass sigma-delta modulator, this band-pass solution uses a much lower sampling frequency for the sigma-delta modulator and thus reduces the requirement for frequency response of the detection interface and control electronics. In this work, the sigma-delta modulator operates at only 40 kHz which allowed its implementation in a continuous-time circuit using discrete electronic components on a PCB; this has the advantage of simple prototyping and can improve the signal anti-aliasing characteristics.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Dong, Yufeng
Kraft, Michaël ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés
Hedenstierna, N.
Redman-White, William
Language :
English
Title :
Microgyroscope control system using a high-order band-pass continuous-time sigma-delta modulator
Publication date :
June 2007
Event name :
Proc. Transducers 2007 Conference
Event place :
France
Event date :
june 2007
Audience :
International
Main work title :
TRANSDUCERS 2007
ISBN/EAN :
1-4244-0842-3
Pages :
pp2533-2536
Peer reviewed :
Peer reviewed
Commentary :
2533--2536 5
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