Results 91 to 100 of about 58,304 (309)

An improved two-vector model predictive torque control based on RMS duty ratio optimization for pmsm [PDF]

open access: yes, 2019
This paper proposes an improved two-vector model-predictive torque control (MPTC) strategy to reduce the average torque ripple and improve the flux tracking performance.
De Belie, Frederik   +3 more
core   +1 more source

Frequency/voltage convertor with low output ripple

open access: yesElectronics Letters, 1986
A circuit is desdribed which performs linear frequency-to-voltage conversion with nominally zero output ripple and, at one frequency, ideal step response. This is in contrast to conventional convertors which have large output ripple, the removal of which necessarily produces slow response.
openaire   +1 more source

Five‐Year Disease Progression in Synuclein Seeding Positive Sporadic Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To provide a comprehensive description of disease progression in synuclein seeding assay (SAA) positive sporadic Parkinson Disease participants, using Neuronal Synuclein Disease integrated biological and functional impairment staging framework.
Paulina Gonzalez‐Latapi   +19 more
wiley   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen   +7 more
wiley   +1 more source

A dc to dc converter [PDF]

open access: yes, 1984
The object of the invention is to provide an improved converter for converting one direct current voltage to another. A plurality of phased square wave voltages are provided from a ring counter through amplifiers to a like plurality of output ...
Garrett, H.   +3 more
core   +1 more source

A novel space-vector algorithm for multilevel converters based on geometrical considerations using a new sequence control technique [PDF]

open access: yes, 2004
his paper presents a fast and simple space vector modulation algorithm for voltage source multilevel converters for calculating the switching times and the space vectors using simple geometrical considerations.
Carrasco Solís, Juan Manuel   +4 more
core   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina   +11 more
wiley   +1 more source

Chaos controller for switching regulators aiming enhanced design-space towards miniaturization [PDF]

open access: yes, 2014
This paper tackles the control of fast-scale instabilities in a buck switching power converter aiming to expand its design-space towards miniaturization.
Alarcón Cot, Eduardo José   +4 more
core   +1 more source

A review on flicker-free ac-dc LED drivers for single-phase and three-phase ac power grids [PDF]

open access: yes, 2019
Light-Emitting Diodes (LEDs) are coming strongly into the lighting market due to their advantages over conventional lighting solutions: energy efficient, controllable in both light and color, long lifetime, lack of a warm-up period and high power density.
Arias Pérez de Azpeitia, Manuel   +5 more
core   +2 more sources

Capacitor Voltage Ripple and Harmonics Analysis in MMC

open access: yes南方能源建设, 2023
[Introduction] The rapid development of VSC-HVDC provides practical support for MMC (Modular Multi-Level Converter) topology. Takes a half bridge MMC converter as an example, the relationship between steady-state capacitor voltage fluctuation, harmonic interaction, and bridge arm switching function of MMC is studied in order to provide theoretical ...
Kaikai ZOU   +4 more
openaire   +1 more source

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