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

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

Journal Name: Recent Advances in Electrical & Electronic Engineering
Formerly Recent Patents on Electrical & Electronic Engineering

Volume 13 , Issue 1 , 2020

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Graphical Abstract:


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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Article Details

VOLUME: 13
ISSUE: 1
Year: 2020
Page: [64 - 68]
Pages: 5
DOI: 10.2174/2213111607666190617150053
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