Title :
A new 2nd order variable-state filter: The frequency agile filter
Author :
Lakys, Yahya ; Fabre, Alain ; Godara, Balwant
Author_Institution :
IMS Lab., ENSEIRB, Talence, France
Abstract :
This article presents a new second-order state variable filter including two amplifiers. The centre frequency of the resulting filter, f0, can be easily controlled using the gains of the amplifiers. This leads to a frequency-agile filter, whose centre frequency can be controlled over a wide range, without incidence on the power consumption. Simulation results given in this article confirm the new approach.
Keywords :
active filters; amplifiers; current conveyors; frequency agility; low-power electronics; current conveyor; filter centre frequency control; frequency-agile filter; low power consumption; second-order state variable filter; Active filters; Band pass filters; Electric variables control; Filter bank; Flow graphs; Frequency; Transconductance; Transfer functions; Tuning; Voltage; controlled current conveyor; current mode filter; frequency agile filter; frequency tuning; state variable filter;
Conference_Titel :
Circuit Theory and Design, 2009. ECCTD 2009. European Conference on
Conference_Location :
Antalya
Print_ISBN :
978-1-4244-3896-9
Electronic_ISBN :
978-1-4244-3896-9
DOI :
10.1109/ECCTD.2009.5275137
