Current and Voltage Mode Resistorless Universal Biquad Filter Using a Single CCCDTA

Lin, Sen; Zuo, Xiaohua; Deng, Xinyang

doi:10.1049/cje.2018.08.007

Cited by 3 publications

(3 citation statements)

References 18 publications

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“…Remaining references [8]- [10] introduce filters working with all possible combinations -current, voltage, transimpedance, and transresistance (current to voltage) mode. Several solutions [4], [5], [10], at some point, include floating capacitors in order to provide certain functions. It is a well-known fact that floating capacitors are unsuitable for Manuscript received 11 February, 2020; accepted 16 May, 2020.…”

Section: Introductionmentioning

confidence: 99%

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Dual-Mode Multifunctional Reconnection-Less Reconfigurable Filter

Langhammer

Šotner

Dvořák

et al. 2020

ELEKTRON ELEKTROTECH

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A novel solution of a reconnection-less reconfigurable filter is being presented. The filter works in the current mode, voltage mode, and mixed mode (voltage tocurrent) offering sixteen transfer functions in total. The structure utilizes a voltage differencing transconductance amplifier, current follower and voltage, and current amplifiers. The designed structure offers the control of the pole frequency and quality factor and the adjustment of the band-stop/band-pass area of available functions. The proposed design is supported by the PSpice simulations using available simulation models.

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Section: Introductionmentioning

confidence: 99%

“…Also, if the switching between functions is controlled strictly digitally, we are limited in the matter of fine tuning of output responses. Moreover, the solution in [4] requires a structure modification to be able to operate in a different mode.…”

Section: Introductionmentioning

confidence: 99%

Dual-Mode Multifunctional Reconnection-Less Reconfigurable Filter

Langhammer

Šotner

Dvořák

et al. 2020

ELEKTRON ELEKTROTECH

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“…These functions, however, are obtainable between different nodes of the network resulting in a filter requiring multiple inputs or outputs, when the switching between these inputs/outputs is necessary in order to obtain a desired function. The above-mentioned multifunction/universal filters can be divided, depending on the number of inputs/outputs, into single inputmultiple output (SIMO) filters [2], [3] and multiple inputsingle Manuscript received 14 December, 2018; accepted 2 March, 2019. This article is based upon work from COST Action CA15225, a network supported by COST (European Cooperation in Science and Technology).…”

Section: Introductionmentioning

confidence: 99%

Novel Reconnection-Less Reconfigurable Filter Design Based on Unknown Nodal Voltages Method and Its Fractional-Order Counterpart

Langhammer¹,

Šotner²,

Dvořák³

et al. 2019

ElAEE

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A novel solution of reconnection-less electronically reconfigurable filter is introduced in the paper. The filter is designed based on unknown nodal voltages method (MUNV) using operational transconductance amplifiers (OTAs) and variable gain amplifier (VGA). The structure can provide all-pass, band-stop, high-pass 2nd order functions, high-pass function of the 1st order and direct transfer from the same topology without requirement of manual reconnection. The proposed structure also offers the electronic control of the pole frequency. Moreover, fractional-order design of the proposed filter is also provided. The behaviour is verified by simulations using Cadence IC6 (spectre) software.

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