Results 21 to 30 of about 1,592,710 (344)

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

Integrated series active filter for aerospace flight control surface actuation [PDF]

open access: yes, 2007
The paper investigates integrated series active filters to satisfy aircraft power quality benchmarks and underlying design compromises. Advantages include reduced component count and retrofitting capability.
Bingham, Chris, Ganthony, D
core   +1 more source

RF Active Inductors Small-Signal Design by Means of Conformal Transformations

open access: yesIEEE Access, 2020
In this work we present a synthesis method for the design of RF and microwave Active Inductors (AI) based on S-parameters and conformal transformations. The proposed approach allows to study and define the desired AI characteristics directly managing the
Alfiero Leoni   +4 more
doaj   +1 more source

Multi-Level Open End Windings Multi-Motor Drives

open access: yesEnergies, 2019
A multi-level open-end winding converter topology for multiple-motor drives is presented featuring a main multi-level inverter processing the power delivered to the motors and an active filter based on an auxiliary two-level inverter.
Salvatore Foti   +5 more
doaj   +1 more source

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

Dual-Band Tunable Recursive Active Filter

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.
Aznar Ballesta, Francisco   +3 more
core   +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

On the Use of the p-q Theory for Harmonic Current Cancellation with Shunt Active Filters [PDF]

open access: yes, 2019
Discussion and mathematical proof on necessary and sufficient conditions for the application of the {p-q} theory for compensating the harmonic currents consumed by non-linear load using a shunt active filter are presented.
De Angelo, Cristian Hernan   +3 more
core   +3 more sources

Tunable active chirped-corrugation waveguide filters [PDF]

open access: yes, 1989
A novel tunable semiconductor waveguide reflection filter is proposed and analyzed. The filter is based on spatially selective gain pumping of a chirped-corrugation waveguide.
Mittelstein, Michael   +2 more
core   +1 more source

Sequential Discrete Kalman Filter for Real-Time State Estimation in Power Distribution Systems: Theory and Implementation

open access: yes, 2017
This paper demonstrates the feasibility of implementing Real-Time State Estimators (RTSEs) for Active Distribution Networks (ADNs) in Field-Programmable Gate Arrays (FPGAs) by presenting an operational prototype.
Kettner, Andreas Martin, Paolone, Mario
core   +1 more source

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