Current-controlled quadrature oscillator using a new single ZC-CG-CCCCTA

Kumngern, Montree; Torteanchai, Usa

doi:10.1109/dictap.2012.6215354

Cited by 4 publications

(5 citation statements)

References 29 publications

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“…Consequently, the current-controlled current conveyor transconductance amplifier (CCCCTA) [12] has been upgraded from a CCTA to a CCCCTA by using a current-controlled function to operate the internal resistance. It is widely applicable to design of sinusoidal Engineering oscillators, for example in voltage-mode [13][14][15][16][17] and current-mode [18][19][20][21]. The following example is advantageous for the sinusoidal oscillator designs that employ CCTA and CCCCTA.…”

Section: Introductionmentioning

confidence: 99%

“…-they require two z-terminals [7,11,15,16,18,[21][22][23][24][25][26]28] and more than two o-terminals of CCTA or CCCCTA [7,16,21,25,28], whose internal structure is large and complicated to implement;…”

Section: Introductionmentioning

confidence: 99%

“…-CCTAs or CCCTCAs must be modified through internal construction [9,16], resulting in a larger structure that is hard to implement and test;…”

Section: Introductionmentioning

confidence: 99%

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A simple sinusoidal quadrature oscillator using a single active element

et al. 2023

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This study describes a simple design for a single active element sinusoidal oscillator with a quadrature signal. A current conveyor transconductance amplifier (CCTA), a single resistor, and two grounded capacitors are used in the first circuit. The second circuit is improved by using a current-controlled current conveyor transconductance amplifier (CCCCTA) and two grounded capacitors without a passive resistor, which means the grounded capacitor is suitably implemented for the IC fabrication. The oscillation condition and frequency of both circuits can be controlled using the same method that concurrently adjusts the DC bias current and the resistance as well as the oscillation frequency can be independently adjusted by capacitances. The CCTA is achieved by cascading the integrated circuits (IC) AD844 and LM13700, made by Analog Devices Corporation and Texas Instruments, respectively, which are available for commercial purchase. The sinusoidal quadrature signals in the time-domain and frequency-domain can be shown with computer simulations and the results of experiments. The Monte Carlo Analysis is also utilized to examine the oscillation frequency with the influence of passive element tolerance errors. The predicted oscillation frequency has a standard variation of about 20.04 kHz, with a maximum frequency of approximately 346.89 kHz and a minimum frequency of approximately 259.09 kHz. In addition, the mean and median frequencies are 296.10 and 293.98 kHz, respectively. The results of this study indicate that computer simulation and experiment are similar to a theoretical analysis, making them suiTable for use in the teaching of electrical and electronic engineering

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A simple sinusoidal quadrature oscillator using a single active element

et al. 2023

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“…The circuit also exhibits the following five performance parameters simultaneously and without trade-offs: (i) voltage-mode and current-mode sinusoidal quadrature oscillator without changing the circuit topology, (ii) independent electronic tuning characteristic of the oscillation condition and the oscillation frequency, (iii) resistorless structure, (iv) the employment only single CCCCTA and two grounded capacitors, and (v) the number of total counts of transistor not more than 35. A summary of the performance parameters of the proposed CCCCTA-based oscillator and previously reported ones [14,15,16,17,18] is given in Table II. As can be seen, the proposed CCCCTA-based sinusoidal quadrature oscillator satisfies all of the above important five properties simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…These advantages allow the implementation of numerous electronically tunable circuits without external passive resistors. Now several CCCCTA-based oscillators have been introduced in the technical literature [14,15,16,17]. These circuits only provide current-mode sinusoidal oscillators.…”

Section: Introductionmentioning

confidence: 99%

CCCCTA-based resistorless voltage and current mode quadrature oscillator

Chen

Wang

2015

IEICE Electron. Express

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Resistorless dual-mode electronically tunable quadrature oscillator using a single current controlled current conveyor transconductance amplifier (CCCCTA) and two grounded capacitors is presented. The proposed circuit can provide both voltage-mode and current-mode simultaneously. The circuit with grounded capacitors enjoys resistorless, electronically tunable, non-interactive frequency and condition control, generates two quadrature current outputs at high impedance nodes and two quadrature voltage outputs. H-Simulation program with integrated circuit emphasis (H-Spice) simulations using Taiwan Semiconductor Manufacturing Company (TSMC) 0.18 µm complementary metal oxide semiconductor (CMOS) technology process parameters are given to validate theoretical predictions.

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Recent Developments in Current-Mode Sinusoidal Oscillators: Circuits and Active Elements

Abuelma’atti

2016

Arab J Sci Eng

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Current-controlled quadrature oscillator using a new single ZC-CG-CCCCTA

Cited by 4 publications

References 29 publications

A simple sinusoidal quadrature oscillator using a single active element

A simple sinusoidal quadrature oscillator using a single active element

CCCCTA-based resistorless voltage and current mode quadrature oscillator

Recent Developments in Current-Mode Sinusoidal Oscillators: Circuits and Active Elements

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