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Bandwidth-enhancement g(m)-C filter with independent omega(O) and Q tuning mechanisms in both topology and control loops

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Martínez García, HerminioMés informacióMés informacióMés informació
Vidal López, Eva MaríaMés informacióMés informacióMés informació
Cantó, Andrea
Poveda López, AlbertoMés informació
Guinjoan Gispert, FranciscoMés informacióMés informacióMés informació
Document typeConference lecture
Defense date2010
Rights accessRestricted access - publisher's policy
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
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 oops. The combination of both the proposed filter topology and the selected control loop algorithms results in an enhanced ransient performance as well as an improvement in terms of cross-detuning.
CitationMartinez, H. [et al.]. Bandwidth-enhancement g(m)-C filter with independent omega(O) and Q tuning mechanisms in both topology and control loops. A: IEEE International Symposium on Circuits and Systems. "2010 IEEE International Symposium on Circuits and Systems". Paris: 2010, p. 3625-3628. 
URIhttp://hdl.handle.net/2117/12447
ISBN978-1-4244-5309-2
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  • EPIC - Energy Processing and Integrated Circuits - Ponències/Comunicacions de congressos [351]
  • Departament d'Enginyeria Electrònica - Ponències/Comunicacions de congressos [1.608]
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