On the realization of electronically tunable mutually coupled circuit employing voltage differencing current conveyors (VDCCs)

2021 ◽  
Author(s):  
Emre Özer ◽  
Fırat Kaçar
Keyword(s):  
Current Conveyors ◽  
Electronically Tunable

New electronically tunable current-mode universal biquad filter using translinear current conveyors

2010 ◽  
Vol 97 (5) ◽  
pp. 511-523 ◽  
Author(s):  
Montree Kumngern ◽  
Wirote Jongchanachavawat ◽  
Kobchai Dejhan
Keyword(s):  
Current Mode ◽  
Current Conveyors ◽  
Biquad Filter ◽  
Electronically Tunable

scholarly journals Active-Only Sinusoidal Oscillator with Electronically-Tunable Fully-Uncoupled Frequency and Condition of Oscillation

2001 ◽  
Vol 24 (4) ◽  
pp. 233-241 ◽  
Author(s):  
Muhammad Taher Abuelmaatti
Keyword(s):  
Second Generation ◽  
Operational Amplifiers ◽  
Current Conveyors ◽  
Oscillator Circuit ◽  
Operational Transconductance Amplifiers ◽  
Sinusoidal Oscillator ◽  
Condition Of Oscillation ◽  
Transconductance Amplifiers ◽  
Electronically Tunable

A new active-only sinusoidal oscillator is presented. The oscillator circuit uses two internally compensated operational amplifiers, two plus-type second-generation current conveyors and three operational transconductance amplifiers. The proposed circuit enjoys the attractive features of totally uncoupled frequency and condition of oscillation, low sensitivities, electronic tunability and integratability.

Electronically Tunable Mixed Mode Quadrature Oscillator Using DX-MOCCII

2020 ◽  
pp. 2150006
Author(s):  
Ashok Kumar ◽  
Ajay Kumar Kushwaha ◽  
Sajal K. Paul
Keyword(s):  
Current Conveyors ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Current Output ◽  
Quadrature Oscillator ◽  
Three Phase ◽  
Condition Of Oscillation ◽  
Noise Frequency ◽  
Band Pass ◽  
Electronically Tunable

A new electronically tunable quadrature oscillator is presented using a biquad band pass filter. The new band pass filter is designed using two dual X second-generation multi-output current conveyors (DX-MOCCIIs), two grounded capacitors, two grounded resistors and one NMOS transistor working in the triode region. It is used to design a four-phase voltage and three-phase current output quadrature oscillator simultaneously. The frequency of the oscillator can be tuned externally through the MOS gate voltage without affecting the condition of oscillation. The phase noise, frequency stability and nonideality analysis are given. The functionality of the oscillator circuit has been confirmed by SPICE simulation and also hardware realization using commercially available IC AD844.

NOVEL FLOATING INDUCTANCE AND FDNR SIMULATORS EMPLOYING CCII+s

2006 ◽  
Vol 15 (01) ◽  
pp. 75-81 ◽  
Author(s):  
ERKAN YUCE ◽  
OGUZHAN CICEKOGLU ◽  
SHAHRAM MINAEI
Keyword(s):  
Second Generation ◽  
Negative Resistance ◽  
Current Conveyors ◽  
Passive Element ◽  
Frequency Dependent ◽  
Active Elements ◽  
Floating Inductance ◽  
Low Pass ◽  
Electronically Tunable ◽  
Element Selection

In this paper, a floating inductance and frequency-dependent negative resistance (FDNR) depending on the passive element selection is presented. The proposed circuit employs only plus-type second-generation current conveyors (CCII+s) as active elements, together with two resistors and two capacitors for realizing floating inductance and FDNR. Both of the capacitors in the floating inductance realization are grounded. Also, electronically tunable floating FDNR is obtained with the proposed circuit. The nonideality effects of the current conveyors on the proposed circuit are given. The proposed circuit is used in a low-pass ladder filter, and simulated with SPICE to exhibit its performance.

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

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Den Satipar ◽  
Pattana Intani ◽  
Winai Jaikla
Keyword(s):  
Frequency Tuning ◽  
Digital Circuit ◽  
Bias Current ◽  
Experimental Results ◽  
Current Conveyors ◽  
Active Device ◽  
Output Terminal ◽  
Sinusoidal Oscillator ◽  
Condition Of Oscillation ◽  
Electronically Tunable

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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