Results 11 to 20 of about 570,353 (311)

Tunable Mixed-Mode Voltage Differencing Buffered Amplifier-Based Universal Filter with Independently High-Q Factor Controllability

open access: yesApplied Sciences, 2021
This paper proposes the design of a mixed-mode universal biquad configuration, which realizes generic filter functions in all four possible modes, namely voltage mode (VM), current mode (CM), transadmittance mode (TAM), and transimpedance mode (TIM). The
Natchanai Roongmuanpha   +3 more
doaj   +1 more source

A hybrid active filter for damping of harmonic resonance in industrial power systems [PDF]

open access: yes, 1998
This paper proposes a hybrid active filter for damping of harmonic resonance in industrial power systems. The hybrid filter consists of a small-rated active filter and a 5th tuned passive filter.
T. Yamasaki   +5 more
core   +1 more source

Dual-Band Tunable Recursive Active Filter [PDF]

open access: yes, 2011
This letter presents a novel recursive active filter topology that provides dual-band performance, with independent tuning capability in both bands. The dual-band operation is achieved by using two independent feedback lines.
García Pérez, Oscar Alberto   +7 more
core   +2 more sources

High-Input Impedance Voltage-Mode Multifunction Filter

open access: yesApplied Sciences, 2021
This paper proposes a high-input impedance voltage-mode (VM) multifunction biquad filter which employs three current-feedback amplifiers (CFAs), three resistors, and two grounded capacitors.
San-Fu Wang   +3 more
doaj   +1 more source

CMOS OTA-Based Filters for Designing Fractional-Order Chaotic Oscillators

open access: yesFractal and Fractional, 2021
Fractional-order chaotic oscillators (FOCOs) have shown more complexity than integer-order chaotic ones. However, the majority of electronic implementations were performed using embedded systems; compared to analog implementations, they require huge ...
Martín Alejandro Valencia-Ponce   +6 more
doaj   +1 more source

Active Collaborative Filtering

open access: yesCoRR, 2012
Collaborative filtering (CF) allows the preferences of multiple users to be pooled to make recommendations regarding unseen products. We consider in this paper the problem of online and interactive CF: given the current ratings associated with a user, what queries (new ratings) would most improve the quality of the recommendations made?
Craig Boutilier   +2 more
openaire   +3 more sources

Control Algorithms of Shunt Active Power Filter for Harmonics Mitigation: A Review

open access: yesEnergies, 2017
Current harmonics is one of the most significant power quality issues which has attracted tremendous research interest. Shunt active power filter (SAPF) is the best solution to minimize harmonic contamination, but its effectiveness is strictly dependent ...
Yap Hoon   +3 more
doaj   +1 more source

A new control technique for active power filters using a combined genetic algorithm/conventional analysis [PDF]

open access: yes, 2002
In this paper, the computational problems associated with the optimization techniques used to evaluate the switching patterns for controlling variable-characteristics active power filters are presented and critically analyzed.
El-Habrouk, M, Darwish, MK
core   +1 more source

Two Degree of Freedom Resonant Structure for Robust Current Control and Active Power Filtering [PDF]

open access: yes, 2005
This paper introduces a novel two degree of freedom resonant control structure for current control in a stationary reference frame in one- or three-phase power electronics systems. The main focus is put on the design of the controller for robust tracking
N. Bajcinca   +3 more
core   +1 more source

Power Management and Power Quality System Applied in a Single-Phase Nanogrid

open access: yesEnergies, 2022
This work aims to present an electrical power management system, between a photovoltaic generation system and a battery energy storage system, by using a low-power dual-stage microinverter connected to the electrical distribution network, configuring a ...
Fernando Marcos de Oliveira   +3 more
doaj   +1 more source

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