Third International Conference on Systems (icons 2008) Electronically Tunable Frequency Filters Based on Transformation Cells April 13-April 18 ISBN: 978-0-7695-3105-2
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICONS.2008.20
In the paper a novel circuit structure realizing a grounded parallel nth-order synthetic immittance system is introduced. Voltage conveyors (VCs) and transadmittance amplifiers (OTAs) are used as active elements. The use of the current-controlled OTAs enables modifying simply the parameters of the synthetic element designed. A further advantage of the synthetic element presented is that all the passive elements used are grounded. The application of the controlled synthetic elements is shown on a realization of tunable 4th-order frequency filters, where the cut-off frequency can be changed in a range from 1 kHz to 1 MHz. The symbolic-analysis conclusions are supplemented by PSpice simulation results.
Index Terms:
Frequency Filter, Tunable Filter, Immittance element, OTA, Transformation Cell, Voltage Conveyor
Citation:
Jaroslav Koton, Kamil Vrba, "Electronically Tunable Frequency Filters Based on Transformation Cells," icons, pp.260-264, Third International Conference on Systems (icons 2008), 2008 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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