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Recent Advances in Electrical & Electronic Engineering

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ISSN (Print): 2352-0965
ISSN (Online): 2352-0973

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General Review Article

High Input Impedances Voltage-mode First-order Filters with Grounded Capacitors using CCIIs

Author(s): Jiun-Wei Horng*, Chun-Yang Tsai, Te-Chi Chen and Chang-Ming Wu

Volume 13, Issue 1, 2020

Page: [64 - 68] Pages: 5

DOI: 10.2174/2213111607666190617150053

Price: $65

Abstract

Background: Three high input impedances voltage-mode first-order filters are presented.

Methods: The first proposed circuit uses one multi-output second-generation current conveyor, two resistors and one grounded capacitor. The second proposed circuit uses two second-generation current conveyors, three resistors and one grounded capacitor. The third proposed circuit uses one multi-output second-generation current conveyor, one resistor and two grounded capacitors.

Results: First-order lowpass and allpass filters can be simultaneously obtained in the first proposed circuit. First-order lowpass, highpass and allpass filters can be simultaneously obtained in the second proposed circuit. The third proposed circuit can realize first-order allpass filter.

Conclusion: All the proposed circuits have the advantages of high input impedances and using only grounded capacitors.

Keywords: Active filter, current conveyor, voltage-mode, first-order, frequency response, analog signal processing.

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