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Bandwidth-Enhancement gm-C Filter with independent ¿o and Q Tuning Mechanisms in Both Topology and Control Loops

Author
Martinez, H.; Vidal, E.; Cantó, A.; Poveda, A.; Guinjoan, F.
Type of activity
Presentation of work at congresses
Name of edition
2010 IEEE International Symposium on Circuits and Systems
Date of publication
2010
Presentation's date
2010-05-30
Book of congress proceedings
Proceedings of 2010 IEEE International Symposium on Circuits and Systems (ISCAS 2010): Paris, France: 30 May-2 June 2010
First page
3625
Last page
3628
DOI
https://doi.org/10.1109/ISCAS.2010.5537780 Open in new window
Repository
http://hdl.handle.net/2117/12162 Open in new window
URL
http://ieeexplore.ieee.org Open in new window
Abstract
This paper deals with the proposal of a new topology for a gm-C continuous time filter which allows the adjustment and tuning of its characteristic parameters (ωO and Q) in an independent way (without cross-tuning), thereby extending the Q range of the filter for a particular ωO value. Additionally a comparison of three different Q-tuning algorithms is presented. It is shown that an LMS-based Q-control strategy allows to overcome the intrinsic dependence between the Q and ωO tuning loops. The...
Citation
Martinez, H. [et al.]. Bandwidth-Enhancement gm-C Filter with independent ¿o and Q Tuning Mechanisms in Both Topology and Control Loops. A: IEEE International Symposium on Circuits and Systems. "IEEE International Symposium on Circuits and Systems 2010". París: 2010, p. 3625-3628.
Group of research
EPIC - Energy Processing and Integrated Circuits
PERC-UPC - Power Electronics Research Centre

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