{"title":"Iterative maps for the nonlinear Pulsed Digital Oscillator for MEMS","authors":"J. Ricart, J. Pons, M. Domínguez","doi":"10.1109/SCED.2007.383957","DOIUrl":null,"url":null,"abstract":"The Pulsed Digital Oscillator (PDO) is a sigma- delta based structure that has been proposed as a control circuit for several applications based on MEMS. A generic PDO is a sampled system that includes a MEMS resonator plus a comparator and a digital feedback loop providing the force pulses that actuate the MEMS device [2]. The most typical PDO topologies include simple and double feedback loops. This paper presents a comparison between both topologies by using the iterative maps as a new tool to analyze the nonlinearity effects on the dynamic behavior of the oscillator. To this effect, discrete-time simulation results of different PDO structures under different damping conditions are presented and analyzed.","PeriodicalId":108254,"journal":{"name":"2007 Spanish Conference on Electron Devices","volume":"30 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 Spanish Conference on Electron Devices","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SCED.2007.383957","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The Pulsed Digital Oscillator (PDO) is a sigma- delta based structure that has been proposed as a control circuit for several applications based on MEMS. A generic PDO is a sampled system that includes a MEMS resonator plus a comparator and a digital feedback loop providing the force pulses that actuate the MEMS device [2]. The most typical PDO topologies include simple and double feedback loops. This paper presents a comparison between both topologies by using the iterative maps as a new tool to analyze the nonlinearity effects on the dynamic behavior of the oscillator. To this effect, discrete-time simulation results of different PDO structures under different damping conditions are presented and analyzed.