Title :
Digital oscillator circuit using synchronous pulse driving
Author :
Roubicek, Tomas ; Dado, Stanislav
Author_Institution :
Dept. of Meas., Czech Tech. Univ. in Prague, Prague
fDate :
Aug. 31 2008-Sept. 3 2008
Abstract :
This paper presents a novel digital oscillator circuit for electromechanical resonant sensors. The circuit is based on the closed-loop system with synchronous pulse driving. The oscillation amplitude is stabilized by a sigma-delta controller. The described circuit is usable for most of resonant sensors, MEMS including. The circuit has very good dynamic properties therefore is very suitable for fast sensors.
Keywords :
digital circuits; micromechanical resonators; microsensors; oscillators; MEMS; closed-loop system; digital oscillator circuit; electromechanical resonant sensors; oscillation amplitude; sigma-delta controller; synchronous pulse driving; Delay; Electromechanical sensors; Feedback circuits; Frequency; Oscillators; Phase noise; Pulse circuits; Pulse measurements; RLC circuits; Resonance;
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
DOI :
10.1109/ICECS.2008.4674895
