A constraint in singlefeedback Sigma Delta forcefeedback loops with a discretetime loop filter
 Author
 Pieter Rombouts (UGent) , Johan Raman (UGent) and Ludo Weyten (UGent)
 Organization
 Abstract
 In this tutorial paper we review Sigma Delta force feedback for the readout of MicroElectroMechanical (MEMS) inertial sensors with a discrete time loop filter. First we focus on the single feedback structure (with only mechanical feedback). It is shown that in this situation the mechanical transfer function introduces a zero in the overall loop gain. This gives rise to a constraint in the realizable NTF. In theory this can be overcome by adding a pole to the controller. An alternative solution is to add an extra electrical feedback branch. The latter solution is considered more beneficial in terms of power consumption and chip area.
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Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU1013486
 Chicago
 Rombouts, Pieter, Johan Raman, and Ludo Weyten. 2010. “A Constraint in Singlefeedback Sigma Delta Forcefeedback Loops with a Discretetime Loop Filter.” In Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2010), 719–722. Budapest, Hungary: Eötvös Loránd University (ELTE).
 APA
 Rombouts, P., Raman, J., & Weyten, L. (2010). A constraint in singlefeedback Sigma Delta forcefeedback loops with a discretetime loop filter. Proceedings of the 19th International symposium on Mathematical Theory of Networks and Systems (MTNS 2010) (pp. 719–722). Presented at the 19th International symposium on Mathematical Theory of Networks and Systems (MTNS 2010), Budapest, Hungary: Eötvös Loránd University (ELTE).
 Vancouver
 1.Rombouts P, Raman J, Weyten L. A constraint in singlefeedback Sigma Delta forcefeedback loops with a discretetime loop filter. Proceedings of the 19th International symposium on Mathematical Theory of Networks and Systems (MTNS 2010). Budapest, Hungary: Eötvös Loránd University (ELTE); 2010. p. 719–22.
 MLA
 Rombouts, Pieter, Johan Raman, and Ludo Weyten. “A Constraint in Singlefeedback Sigma Delta Forcefeedback Loops with a Discretetime Loop Filter.” Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2010). Budapest, Hungary: Eötvös Loránd University (ELTE), 2010. 719–722. Print.
@inproceedings{1013486, abstract = {In this tutorial paper we review Sigma Delta force feedback for the readout of MicroElectroMechanical (MEMS) inertial sensors with a discrete time loop filter. First we focus on the single feedback structure (with only mechanical feedback). It is shown that in this situation the mechanical transfer function introduces a zero in the overall loop gain. This gives rise to a constraint in the realizable NTF. In theory this can be overcome by adding a pole to the controller. An alternative solution is to add an extra electrical feedback branch. The latter solution is considered more beneficial in terms of power consumption and chip area.}, author = {Rombouts, Pieter and Raman, Johan and Weyten, Ludo}, booktitle = {Proceedings of the 19th International symposium on Mathematical Theory of Networks and Systems (MTNS 2010)}, isbn = {9789633113707}, language = {eng}, location = {Budapest, Hungary}, pages = {719722}, publisher = {E{\"o}tv{\"o}s Lor{\'a}nd University (ELTE)}, title = {A constraint in singlefeedback Sigma Delta forcefeedback loops with a discretetime loop filter}, year = {2010}, }