VDCC Based Dual-Mode Quadrature Sinusoidal Oscillator with Outputs at Appropriate Impedance Levels

Srivastava, Mayank; Prasad, Dinesh

doi:10.15598/aeee.v14i2.1611

Cited by 17 publications

(18 citation statements)

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“…Note that the above mentioned QO circuits are useful in either voltage [24][25][26][27], [31][32], [34][35], [39][40] or current-mode [28][29][30], [33], [36][37][38] applications. Some QO configurations were developed in [41][42][43][44][45][46][47][48][49], where the voltage and current quadrature outputs are generated simultaneously. Several dual-mode QOs make use of one or more active elements [42][43][44], [47], [49].…”

Section: Introductionmentioning

confidence: 99%

“…Some QO configurations were developed in [41][42][43][44][45][46][47][48][49], where the voltage and current quadrature outputs are generated simultaneously. Several dual-mode QOs make use of one or more active elements [42][43][44], [47], [49]. Although another set of compact QO realizations using a single active element were proposed in [46], [48], they do not permit non-interactive control of the condition of oscillation (CO) and the frequency of oscillation (ω osc ).…”

Section: Introductionmentioning

confidence: 99%

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Single VDGA-Based Dual-Mode Multifunction Biquadratic Filter and Quadrature Sinusoidal Oscillator

Channumsin

2020

Informacije MIDEM

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This article relates to the realization of voltage-mode and/or current-mode multifunction biquadratic filter and quadrature oscillator circuits each using one voltage differencing gain amplifier (VDGA), two resistors and two grounded capacitors. The proposed dual-mode filter having one output and three inputs can provide the three standard biquadratic transfer functions with both voltage and current output filter responses simultaneously. It also has the independent tuning of the angular resonance frequency and the quality factor. With a slight modification of the proposed filter, a new dual-mode quadrature sinusoidal oscillator can be obtained. The proposed quadrature oscillator provides orthogonal resistive/electronic control of both oscillation condition and oscillation frequency. Non-ideal and parasitic conditions are also examined and their effects on the circuit performance are discussed. To confirm the theory, several computer simulation results with PSPICE program are given.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Single VDGA-Based Dual-Mode Multifunction Biquadratic Filter and Quadrature Sinusoidal Oscillator

Channumsin

2020

Informacije MIDEM

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“…The design solutions for analog signal processing applications by employing different active building blocks such as the realization of a synthetic inductor [3][4][5][6][7][8], formation of active filters [9][10][11][12][13][14][15][16][17][18][19][20][21], and generation of sinusoidal oscillators [19,[21][22][23][24][25][26][27][28][29][30][31][32][33] are available in the open literature. Inductors can be further classified as grounded [3][4][5][6][7] and ungrounded or floating inductors [6,8].…”

Section: Introductionmentioning

confidence: 99%

Various applications of analog signal processing employing voltage differencing current conveyor and only grounded passive elements: a re-convertible approach

Gupta¹,

Arora

2020

SN Appl. Sci.

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A re-convertible circuit that can either act as a current-mode universal filter or as a fully un-coupled dual-mode singleresistance-controlled quadrature oscillator or simply works as a grounded loss-less inductor, by simple selection of appropriate passive switches, is proposed here. The proposed circuit requires a maximum of two voltage differencing current conveyors as an active element in the case of filter and oscillator application, whereas only one active device suffices the purpose of active inductor implementation. In all the cases only grounded passive elements are employed. Various regular analysis for the proposed circuits have also been included here to support the theoretical idea. The workability of these circuits has been demonstrated by practicing PSPICE simulation software with TSMC CMOS 0.18 μm process parameters along with the experimental justification of the derived application using commercially available integrated circuits.

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“…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]. In [19], the Colpitts oscillator using VDCCbased capacitance multiplier was proposed.…”

Section: Introductionmentioning

confidence: 99%

“…However, the amplitude of quadrature output waveform is not equal during tuning the frequency. In [25], the quadrature oscillator using two VDCC, two grounded resistors, and two grounded capacitors was presented. The FO and CO can be independently/electronically controlled.…”

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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VDCC Based Dual-Mode Quadrature Sinusoidal Oscillator with Outputs at Appropriate Impedance Levels

Cited by 17 publications

References 0 publications

Single VDGA-Based Dual-Mode Multifunction Biquadratic Filter and Quadrature Sinusoidal Oscillator

Single VDGA-Based Dual-Mode Multifunction Biquadratic Filter and Quadrature Sinusoidal Oscillator

Various applications of analog signal processing employing voltage differencing current conveyor and only grounded passive elements: a re-convertible approach

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

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