Inverse active filters employing CFOAs

Gupta, Shanti S.; Bhaskar, D. R.; Senani, Raj; Singh, A. K.

doi:10.1007/s00202-009-0112-3

Cited by 42 publications

(33 citation statements)

References 7 publications

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“…For digital signal processing, several methods for obtaining digital inverse filters have been established [2]. Nevertheless, for analog signal processing, only a few works are known for realizing continuous-time analog inverse filters [1,[3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Multifunction CFOA-Based Inverse Filter

Wang

Chang²,

Yang³

et al. 2011

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We present a novel multifunction inverse biquad configuration based on current feedback operational amplifiers (CFOAs) and grounded passive elements. The proposed scheme can be used to realize inverse lowpass, inverse bandpass and inverse highpass filter functions. The relevant coefficients of the inverse filters are orthogonal adjustable by independent passive elements. All the passive elements in the proposed scheme are grounded to benefit easier electronic tunability. With the high input impedance and low output impedance properties, the scheme is input and output cascadable for voltage operation. The feasibility of the proposed scheme is demonstrated by HSPICE simulations

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Section: Introductionmentioning

confidence: 99%

“…All the proposed approaches in [1,3,4] are useful for obtaining single-input single-output inverse filters. Additional various inverse current-mode and voltage-mode filters are presented in [5] and [6], respectively. However, each circuit proposed in [5,6] has one inverse filter function.…”

Section: Introductionmentioning

confidence: 99%

A Novel Multifunction CFOA-Based Inverse Filter

Wang

Chang²,

Yang³

et al. 2011

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“…Several IAFs with active devices such as FTFNs (four-terminal floating nullors), CFOAs (current feedback operational amplifiers), the CCIIs and OTAs have been reported in the past [4][5][6][7][8][9]. The IAFs [4][5][6][7] with the FTFNs and CFOAs used ungrounded passive components on the device's properties. Moreover, a study [8] reported an IBP (inverse band-pass) filter employing the CCIIs, and it is applied to a PID controller.…”

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confidence: 99%

CCII-Based Inverse Active Filters with Grounded Passive Components

Tsukutani¹,

Kunugasa²,

Yabuki³

2018

JEE

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This paper introduces IAFs (inverse active filters) employing CCIIs (second generation current conveyors) and grounded passive components. The IAFs enable ILP (inverse low-pass), IBP (inverse band-pass) and IHP (inverse high-pass) characteristics by adding the circuit currents. Additionally, the circuit parameters ω 0 and Q can be set orthogonally adjusting the circuit components. The achievement example is given together with simulation results by PSPICE.

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“…In [4] and [5] various inverse current-mode and voltage-mode filters are proposed, respectively. But, each circuit presented in [4,5] have one inverse filter fu nction.…”

Section: Introductionmentioning

confidence: 99%

A novel multifunction modified CFOA based inverse filter

Garg

Bhagat

Jaint

2012

2012 IEEE 5th India International Conference on Power Electronics (IICPE)

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Inverse filter has been a topic of great interest and research. A novel multifunction inverse bi-quad configuration based on modified current feedback operational amplifiers (MCFOAs) and a minimum number of grounded passive elements are presented in this paper. To show the flexibility of the proposed MCFOA inverse Lowpass, inverse Bandpass and inverse Highpass filter functions employing MCFOA are reported. All the passive elements in the proposed scheme are grounded to benefit easier electronic tunability. The layout of the proposed MCFOA is also given. The workability of the proposed inverse filters is demonstrated by PSPICE simulations.Keyword�inverse active filters, modified current feedback operational amplifier (MCFOA), analogue signal processing.I.

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Inverse active filters employing CFOAs

Cited by 42 publications

References 7 publications

A Novel Multifunction CFOA-Based Inverse Filter

A Novel Multifunction CFOA-Based Inverse Filter

CCII-Based Inverse Active Filters with Grounded Passive Components

A novel multifunction modified CFOA based inverse filter

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