Single VDCC-based current-mode universal biquadratic filter

Lamun, Panit; Phatsornsiri, Punnavich; Torteanchai, Usa

doi:10.1109/iciteed.2015.7408926

Cited by 11 publications

(20 citation statements)

References 9 publications

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“…Furthermore, the second and third circuits cannot realize all the five types of filter responses. The VDCC based universal biquad filter reported in [21] works only in current-mode. Despite that, the center frequency of that circuit is comparatively low.…”

Section: Introductionmentioning

confidence: 99%

Voltage Differencing Current Conveyor Based Voltage-Mode and Current-Mode Universal Biquad Filters with Electronic Tuning Facility

Roy¹,

Paul²,

Maiti³

et al. 2021

Int. j. eng. technol. innov.

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The objective of this study is to present four new universal biquad filters, two voltage-mode multi-input-single-output (MISO), and two current-mode single-input-multi-output (SIMO). The filters employ one voltage differencing current conveyor (VDCC) as an active element and two capacitors along with two resistors as passive elements. All the five filter responses, i.e., high-pass, low-pass, band-pass, band-stop, and all-pass responses, are obtained from the same circuit topology. Moreover, the pole frequency and quality factor are independently tunable. Additionally, they do not require any double/inverted input signals for response realization. Furthermore, they enjoy low active and passive sensitivities. Various regular analyses support the design ideas. The functionality of the presented filters are tested by PSPICE simulations using TSMC 0.18 µm technology parameters with ± 0.9 V supply voltage. The circuits are also justified experimentally by creating the VDCC block using commercially available OPA860 ICs. The experimental and simulation results agree well with the theoretically predicted results.

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Section: Introductionmentioning

confidence: 99%

Voltage Differencing Current Conveyor Based Voltage-Mode and Current-Mode Universal Biquad Filters with Electronic Tuning Facility

Roy¹,

Paul²,

Maiti³

et al. 2021

Int. j. eng. technol. innov.

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show abstract

“…Literature review shows that, a number of the analog circuits using VDCC as active element have been found for examples, inductance simulator [10][11], capacitance multiplier [12][13], versatile passive element simulator [14][15], square and triangular wave generator [16], sinusoidal oscillator [6,13,[17][18][19][20], first order allpass filter [21], ladder filter [22] etc. The VDCC based universal filters have been proposed in [23][24][25][26]. The three-inputs single-output currentmode universal filter with five filter responses was proposed in [23].…”

Section: Introductionmentioning

confidence: 99%

“…The VDCC based universal filters have been proposed in [23][24][25][26]. The three-inputs single-output currentmode universal filter with five filter responses was proposed in [23]. It consists of single VDCC, single grounded resister and two grounded capacitors.…”

Section: Introductionmentioning

confidence: 99%

Single VDCC-Based Electronically Tunable Voltage-Mode Second Order Universal Filter

Uttaphut

2018

ELECTROTECHNICAL REVIEW

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A design of second-order multiple-input single-output voltage-mode universal filter is presented in this paper. The proposed filter consists of single voltage differencing current conveyor (VDCC), single resistor and two capacitors. The new circuit provides five filter responses namely, lowpass, high-pass, band-pas, band-reject and all-pass functions. Each output filter response can be selected without the requirement of the matching condition and double gain amplifier for selecting all-pass function. The tuning of natural frequency and quality factor can be electronically done. The proposed circuit only uses single active element, which can be easily implemented as an integrated circuit. The MOS modeling of VDCC and Pspice simulation of proposed filter were carried out on TSMC 0.18 micrometer CMOS technology. Streszczenie. Opisano uniwersalny filtr drugiego rzędu wykorzystujący układ VDCC (voltage differencing current conveyor). Częstotliwość graniczną filtru i jego dobroćmoga być dobierane elektronicznie. Zaproponowany filtr opracowano w technologii CMOS 0.18 mikrometra. Uniwersalny strojony filtr drugiego rzędu wykorzystujący technologię VDCC

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“…These parasitic impedances affect the performance of the proposed oscillator. Taking them into account, the characteristic equation of the circuit in Figure 4 is obtained as (14), the frequency of oscillation is obtained as * 0…”

Section: Effect Of Nonideal Current/voltage Gains and Parasitic Elementsmentioning

confidence: 99%

“…VDCC is also attractive due to its capability of electronic controllability. The analog circuits using VDCC as active element have been found in the literature, for examples, universal filter [11][12][13][14], first-order all-pass filter [15], ladder filter [16], passive element simulator [10,[17][18][19][20][21], and square and triangular wave generator [22]. The VDCC-based sinusoidal oscillators have been proposed in [19,[23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Electronically Tunable Quadrature Sinusoidal Oscillator with Equal Output Amplitudes during Frequency Tuning Process

Satipar¹,

Intani²,

Jaikla

2017

Journal of Electrical and Computer Engineering

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A new configuration of voltage-mode quadrature sinusoidal oscillator is proposed. The proposed oscillator employs two voltage differencing current conveyors (VDCCs), two resistors, and two grounded capacitors. In this design, the use of multiple/dual output terminal active building block is not required. The tuning of frequency of oscillation (FO) can be done electronically by adjusting the bias current of active device without affecting condition of oscillation (CO). The electronic tuning can be done by controlling the bias current using a digital circuit. The amplitude of two sinusoidal outputs is equal when the frequency of oscillation is tuned. This makes the sinusoidal output voltages meet good total harmonic distortions (THD). Moreover, the proposed circuit can provide the sinusoidal output current with high impedance which is connected to external load or to another circuit without the use of buffer device. To confirm that the oscillator can generate the quadrature sinusoidal output signal, the experimental results using VDCC constructed from commercially available ICs are also included. The experimental results agree well with theoretical anticipation.

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Single VDCC-based current-mode universal biquadratic filter

Cited by 11 publications

References 9 publications

Voltage Differencing Current Conveyor Based Voltage-Mode and Current-Mode Universal Biquad Filters with Electronic Tuning Facility

Voltage Differencing Current Conveyor Based Voltage-Mode and Current-Mode Universal Biquad Filters with Electronic Tuning Facility

Single VDCC-Based Electronically Tunable Voltage-Mode Second Order Universal Filter

Electronically Tunable Quadrature Sinusoidal Oscillator with Equal Output Amplitudes during Frequency Tuning Process

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