Results 31 to 40 of about 573 (186)

Capacitance multiplier design by using CFOA-

2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015
In this work, capacitance multiplier is designed by using negative current feedback operational amplifier. The proposed circuit has low sensitivity to temperature variations. The simulation results are obtained by PSPICE simulations verify the theoretical analysis between 100KHz-6MHz.
Remzi Arslanalp, Tolga Yucehan
openaire   +5 more sources

A New PID Controller Circuit Design Using CFOAs

Circuits, Systems, and Signal Processing, 2020
In this study, a new CFOA-based PID controller circuit is designed and implemented by a systematic approach employing signal-flow graph theory which is a powerful tool for active circuit design. The proposed circuit has independently adjustable PID parameters ( $$K_\mathrm{P}$$
Zehra Gülru Çam Taskiran, Herman Sedef, Fuat Anday   +2 more
openaire   +4 more sources

New Quartz Crystal Oscillators Using the Current-Feedback Operational Amplifier

Active and Passive Electronic Components, 2000
New crystal oscillators using the current-feedback operational-amplifier (CFOA) are presented. Each circuit uses one CFOA, a crystal and, at most, five externally connected passive elements. Experimental results are included.
Muhammad Taher Abuelma'atti, Ahmad Al-Ghazwani   +1 more
doaj   +1 more source

CCII and FPGA Realization: A Multistable Modified Fourth‐Order Autonomous Chua’s Chaotic System with Coexisting Multiple Attractors

Complexity, Volume 2020, Issue 1, 2020., 2020
In this paper, a multistable modified fourth‐order autonomous Chua’s chaotic system is investigated. In addition to the dynamic characteristics of the third‐order Chua’s chaotic system itself, what interests us is that this modified fourth‐order autonomous Chua’s chaotic system has five different types of coexisting attractors: double‐scroll, single ...
Fei Yu, Hui Shen, Li Liu, Zinan Zhang, Yuanyuan Huang, Binyong He, Shuo Cai, Yun Song, Bo Yin, Sichun Du, Quan Xu, Viet-Thanh Pham   +11 more
wiley   +1 more source

Realization of chaotic oscillator and use in secure communication

e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
This scientific study reports on the practical as well as modelling of active hybrid inductor based chaotic oscillators using Current Feedback Amplifier (CFOA) and Op-Amp.
Amrita Rai, Manoj Joshi, Kamal Kishor Upadhyay, Vaibhav Khare, Jyoti, Harshit Shastri, Shreya Goyal   +6 more
doaj   +1 more source

CNTFET based inductance simulator circuits employing single CFOA and its filter applications

, 2022
The purpose of this paper is to design novel inductance simulator topologies using 32 nm carbon nanotube field effect transistor (CNTFET) technology. In a CMOS CFOA structure, we replaced MOS transistors by CNFETs and determined the optimum tube numbers ...
KAÇAR, FIRAT, ÖZÇELEP, YASİN, Mamatov, Islombek   +2 more
core   +1 more source

A Multi-Strategy Improved Catch Fish Optimization Algorithm for Microgrid Scheduling Optimization and Real-World Engineering Applications

Mathematics
Complex engineering optimization problems are typically characterized by high dimensionality, multimodality, and strong constraints, posing significant challenges to traditional swarm intelligence algorithms in terms of convergence speed, solution ...
Xintian Yu, Yi Fang
doaj   +1 more source

Analytical Synthesis of High-Pass, Band-Pass and Low-Pass Biquadratic Filters and its Quadrature Oscillator Application Using Current-Feedback Operational Amplifiers

IEEE Access, 2021
In this paper, a method of realizing voltage-mode (VM) non-inverting high-pass filter (HPF), band-pass filter (BPF), low-pass filter (LPF), and inverting low-pass filter (ILPF) transfer functions structure with two grounded capacitors and four resistors ...
San-Fu Wang, Hua-Pin Chen, Yitsen Ku, Ming-Xiu Zhong   +3 more
doaj   +1 more source

A Comparative Hybrid Deep Learning Approach for Robust Stator–Rotor Fault Identification in DFIGs Using FFT‐Based Features and CNN–LSTM–Transformer Models Under Nonstationary Wind Turbulence

Engineering Reports, Volume 8, Issue 9, September 2026.
A hybrid CNN–LSTM–Transformer framework with FFT‐based feature extraction enables accurate detection and severity estimation of stator and rotor faults in DFIGs under turbulent conditions, achieving over 94% accuracy for early‐stage fault diagnosis. Fault Diagnosis and Severity Estimation in Wind Turbines.
Mehdi Mohammadian Mehr, Mohsen Saniei, Mahmood Joorabian, Hossein Farzin   +3 more
wiley   +1 more source

On the Design of Complex Coefficient Multifunction Filters

International Journal of Circuit Theory and Applications, Volume 54, Issue 1, Page 591-600, January 2026.
This work presents novel designs of multifunction topologies for simultaneously extracting the real and imaginary components of complex band‐pass and notch filters, which are derived from prototype first‐order low‐pass and high‐pass filters. The real and imaginary parts of the complex filters are then post‐processed to compute the instantaneous ...
Julia Nako, Georgia Tsirimokou, Costas Psychalinos, Ahmed S. Elwakil   +3 more
wiley   +1 more source