Results 161 to 170 of about 612 (188)
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Miscellaneous Linear and Nonlinear Applications of CFOAs
2013This chapter deals with miscellaneous linear and nonlinear applications of CFOAs which include electronically-variable gain amplifier, cable driver, video distribution amplifier, a variety of Schmitt Triggers, nonlinear wave form generators, Precision rectifiers, Analog divider, Pseudo exponential circuits and both autonomous and non-autonomous chaotic
Raj Senani +3 more
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Converting CCIIs to CFOAs in current-mode circuits
1998 Midwest Symposium on Circuits and Systems (Cat. No. 98CB36268), 2002The effects on the current-mode transfer functions of a linear network consisting of a subnetwork N connected to a positive second generation current conveyor (CCII+) are determined when the CCII+ is replaced by a current feedback op-amp (CFOA) and a feedback component is added between the output of the CFOA and an independent node of N.
P. Aronhime, K. Wang
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New voltage controlled oscillators using CFOAs
AEU - International Journal of Electronics and Communications, 2009Abstract In this paper, some new current feedback operational amplifier (CFOA)-based voltage-controlled oscillators (VCOs) have been introduced. The proposed circuits offer a number of advantageous features over previously known CFOA-based VCOs. The workability of the presented circuits has been demonstrated using AD844 CFOAs and BFW10 FETs.
S.S. Gupta, D.R. Bhaskar, R. Senani
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A Simple Grid Multiscroll Chaotic Electronic Oscillator Employing CFOAs
International Journal of Bifurcation and Chaos, 2014In this paper, a novel grid multiscroll chaotic electronic oscillator with simple circuit design is proposed. The proposed grid multiscroll chaotic circuit only needs two current feedback operational amplifiers (CFOAs) as current integrators, passive RC, and nonlinear elements in the form of current stair nonlinear function series (SNFS) realized with
Yuan Lin +3 more
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CFOA based Single Resistance Controlled Oscillator
2020 IEEE 7th Uttar Pradesh Section International Conference on Electrical, Electronics and Computer Engineering (UPCON), 2020This paper presents a newly devised single resistance controlled sinusoidal oscillator (SRCO) using two current feedback operational amplifiers (CFOAs), four resistors and two capacitors (grounded/virtually grounded). The proposed oscillator has independent control of condition of oscillation (CO) and frequency of oscillation (FO).
Shubham Snehill +4 more
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CFOA Based Negative Floating Capacitance Multiplier
2019A floating negative capacitance multiplier circuit is proposed in the paper utilizing only two Current Feedback Operational Amplifiers (CFOAs) and total of three passive elements including two resistors for tuning the multiplication factor and a low valued integrated capacitor.
Shashwat Singh +2 more
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Comparison between Miller integrator cells using VOAs and CFOAs
9th International Conference on Electronics, Circuits and Systems, 2003The current feedback opamp (CFOA) emerged as a high-speed alternative to the conventional voltage operational amplifier (VOA) and since its introduction a wide spectrum of applications have been proposed, also in the filters area. However, no effort has been aimed to demonstrate under what conditions improvements are achievable and to outline eventual ...
R. MITA +2 more
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Voltage-Mode Multifunction and Universal Biquads with Two CFOAs
Journal of Circuits, Systems and ComputersIn this paper, a new voltage-mode (VM) multifunction filter including only two grounded capacitors, three resistors, and two current feedback operational amplifiers is introduced. This filter with one high input impedance and two low output impedances can simultaneously provide band-pass filter (BPF) and low-pass filter (LPF) responses with an ...
Mehmet Dogan, Erkan Yüce, Zafer Dicle
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Simulation of coupled tuned circuits using CFOAs
ISCAS '98. Proceedings of the 1998 IEEE International Symposium on Circuits and Systems (Cat. No.98CH36187), 2002An active RC voltage-mode circuit that mimics the behavior at low frequency of a bandwidth-tunable bandpass filter as realized by a double-tuned circuit is converted to a current-mode circuit using commercially available current-feedback op amps. Analyses and simulations show that the new current-mode circuit can operate relatively accurately in the ...
J. Deng, P. Aronhime, B. Maundy
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New CFOA-based floating immittance emulators
International Journal of Electronics, 2016ABSTRACTThis paper presents four new topologies for emulating floating immittance functions. Each circuit uses two or three current-feedback operational-amplifiers (CFOAs) and three passive elements. The proposed topologies can emulate positive/negative lossless and lossy floating inductances, and positive/negative capacitance, resistance and ...
Muhammad Taher Abuelma’atti +1 more
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