Results 21 to 30 of about 387,123 (341)

High Frequency Pulse Width Modulation Converters [PDF]

open access: yesKirkuk Journal of Science, 2013
The delta modulation technique permits an accurate of an arbitrary reference. Spectrum of the current going through an inductive load shows a very low THD.
Ahmed Hassan Mohammed
doaj   +1 more source

Indirect active and reactive powers control of doubly fed induction generator fed by three-level adaptive-network-based fuzzy inference system – pulse width modulation converter with a robust method based on super twisting algorithms

open access: yesElectrical engineering & Electromechanics, 2021
Aim. This paper presents the minimization of reactive and active power ripples of doubly fed induction generators using super twisting algorithms and pulse width modulation based on neuro-fuzzy algorithms. Method. The main role of the indirect active and
H. Benbouhenni, A. Driss, S. Lemdani
doaj   +1 more source

High‐frequency pulse width modulation noise reduction for permanent magnet synchronous motors using hybrid asymmetrical regular sampled modified space‐vector pulse width modulation

open access: yesIET Power Electronics, 2021
This paper proposes a strategy called hybrid asymmetrical regular sampled modified space‐vector pulse width modulation technique in two‐level voltage source inverters.
Wentao Zhang   +3 more
doaj   +1 more source

Detailed Simulink implementation for induction motor control based on space vector pulse width modulation SVPWM

open access: yes, 2021
Received Oct 13, 2020 Revised May 8, 2021 Accepted May 19, 2021 Space vector pulse width modulation (SVPWM) generates less harmonic distortion in the output voltage or currents, provides more efficient use of supply voltage and better voltage utilization
T. Hussein, Laith A. Mohammed
semanticscholar   +1 more source

A Bandwidth Efficient Hybrid Multilevel Pulse Width Modulation for Visible Light Communication System: Experimental and Theoretical Evaluation

open access: yesIEEE Open Journal of the Communications Society, 2022
Visible light communication (VLC) is considered a new technology for interconnecting devices in 5G and beyond. VLC can provide additional bandwidth for communicating devices which can help to reduce the radio frequency bandwidth congestion. In this work,
Mohammad Abrar Shakil Sejan   +3 more
doaj   +1 more source

Efficient n-M-PAWM hybrid modulation scheme for high data transmission in visible light communication system

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2022
Visible-Light Communications (VLC) is a new wireless communication technology, which has attracted particular attention as a promising solution for very high speed 5G, and 6G wireless networks in indoor environments.
Mohamed El Jbari, Mohamed Moussaoui
doaj   +1 more source

A General Pulse Width Modulation Method for Zero-Voltage-Switching Active-clamping Three-phase Power Converters: Edge Aligned Pulse Width Modulation (EA-PWM)

open access: yesIEEE Open Journal of Power Electronics, 2020
A general PWM method for soft-switching three-phase power converters-Edge Aligned PWM (EA-PWM) is proposed. It aligns all the high loss commutation instants of the converter bridges in a switching cycle at the same instant so that all the switches of the
Keyan Shi, Jinyi Deng, Dehong Xu
doaj   +1 more source

Pulse forming in an AM mode-locking hybrid TEA-CO2 laser [PDF]

open access: yes, 1986
We performed an experimental study on the pulse forming mechanism in an AM mode-locked hybrid TEA-CO2 laser by means of “injection mode-locking”. The results show that bandwidth limited pulses will only be reached within a small - critical - range of ...
Bonnie, R.J.M., Goor, F.A. van
core   +4 more sources

Analysis of Kapitza-Dirac diffraction patterns beyond the Raman-Nath regime [PDF]

open access: yes, 2009
We study Kapitza-Dirac diffraction of a Bose-Einstein condensate from a standing light wave for a square pulse with variable pulse length but constant pulse area.
Adams   +24 more
core   +1 more source

Passive Mode-Locking of Monolithic InGaAs/AlGaAs Double Quantum Well Lasers at 42GHz Repetition Rate [PDF]

open access: yes, 1990
Pulse trains with a 42GHz repetition rate were generated by monolithic InGaAs/AlGaAs double quantum well lasers at a wavelength of 985 [angstroms]. The cavity was electrically divided into three regions, one providing gain and the other two providing ...
Eng, L., Sanders, S., Yariv, A.
core   +1 more source

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