DocumentCode
3075441
Title
A simulation study of electromechanical delta-sigma modulators
Author
Wu, Jiangfeng ; Carley, L. Richard
Author_Institution
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Volume
3
fYear
2001
fDate
6-9 May 2001
Firstpage
453
Abstract
This paper introduces electromechanical delta-sigma modulators which take mechanical forces as inputs and use micromechanical transducers in the loops. A simulator is developed in which various nonidealities could be modeled. A simulation study on the 2nd and the 3rd-order modulators with single and multi-bit quantization is presented. A novel method called complementary pulse density modulation (CPDM) is proposed to realize linear multi-bit feedback using micro actuators
Keywords
delta-sigma modulation; feedback; micromechanical devices; quantisation (signal); complementary pulse density modulation; electromechanical delta-sigma modulator; linear multi-bit feedback; mechanical force sensor; microactuator; micromechanical transducer; multi-bit quantization; numerical simulation; single-bit quantization; Actuators; Delta modulation; Digital modulation; Feedback; Force sensors; Microactuators; Micromechanical devices; Pulse modulation; Sensor systems; Transducers;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location
Sydney, NSW
Print_ISBN
0-7803-6685-9
Type
conf
DOI
10.1109/ISCAS.2001.921345
Filename
921345
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