Tunable oscillator derived from Colpitts structure with simply controllable condition of oscillation and synthetic inductor based on current amplifier and voltage differencing transconductance amplifier

Šotner, Roman; Jeřábek, Jan; Herencsár, Norbert; Petržela, Jiří; Vrba, Kamil; Kincl, Zdenek

doi:10.1109/eleco.2013.6713928

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…1. One or more floating components are used in [28], [29], [31]- [35], [37], [38], [40], [41], and [44]; 2. Quadrature outputs are not available in [29] and [38];…”

Section: Introductionmentioning

confidence: 99%

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MOS-C Based Electronically Tuneable Current/Voltage-Mode Third Order Quadrature Oscillator and Biquadratic Filter Realization

Çiçekli

Gökçen

2021

ELEKTRON ELEKTROTECH

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This paper introduces a new electronically tuneable third order quadrature oscillator and biquadratic filter with MOS-C realization using all grounded passive components. Voltage-mode second order low-pass, high-pass, band-pass filters using second generation current conveyor and a current/voltage-mode third order quadrature sinusoidal oscillator using multi-output second generation current conveyor are synthesized from the proposed circuit topology. All synthesized circuits are compatible with integration and the center frequency can be electronically tuned by the gate voltage of the MOS transistors. The proposed circuits do not need any component matching condition. Oscillation condition and frequency of oscillation can be independently controlled. Workability of the proposed circuits is validated by PSPICE software using 0.18 micrometer MOSIS CMOS process parameters at ±0.9 V supply voltage. Tuneability of the oscillator is demonstrated for a tested frequency range both in voltage-mode and current-mode operations.

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“…1. One or more floating components are used in [28], [29], [31]- [35], [37], [38], [40], [41], and [44]; 2. Quadrature outputs are not available in [29] and [38];…”

Section: Introductionmentioning

confidence: 99%

“…Oscillator and Biquadratic Filter Realization 3. Different type active elements in the same topology are used in [35], [36], and [43]; 4. Topologies in [29], [31], [33], [34], [36]- [38], [41], [43], and [44] do not have MOS-C realization, which is a need for integration; 5.…”

Section: Introductionmentioning

confidence: 99%