Results 91 to 100 of about 57,287 (288)

Parallelogram Based Method for Space Vector Pulse Width Modulation

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2010
Este artículo presenta un método para la determinación del ciclo de trabajo de la modulación de vectores espaciales utilizando circuitos convencionales de modulación por ancho de pulso.
José Restrepo   +4 more
doaj  

Unidade retificadora de alta performance 1500W-25A, para telecomunicações [PDF]

open access: yes, 1993
Dissertação (mestrado) Universidade Federal de Santa Catarina, Centro TecnologicoEste trabalho enfatiza o desenvolvimento de uma unidade retificadora em alta freqüência para aplicação em centrais telefônicas com capacidade de 1500W.
Gaidzinski, Paulo Roberto
core  

Smoothed control law using PWM (a) boundary layer (b) PWM generator (c) PWM output switching signal.

open access: yes, 2020
Smoothed control law using PWM (a) boundary layer (b) PWM generator (c) PWM output switching signal.
M. Abbas Abbasi (8415195)   +4 more
core   +1 more source

Fast, Strong Capillary Liquid Metal Muscles

open access: yesAdvanced Intelligent Systems, EarlyView.
Capillary liquid metal muscles (CLMMs) harness the exceptionally high and electrochemically tunable surface tension of gallium‐based liquid metals (e.g., EGaIn) to generate mechanical work. Confinement within microchannels maximizes surface‐energy conversion, enabling high force, ultrafast response (<25 ms), low‐voltage operation (<10 V), and ...
Tim Cole   +8 more
wiley   +1 more source

Overview of the digital-to-analog converter module based on the MCP4725 chip and the digital-to-analog converter module based on the integrating RC circuit

open access: yesИзвестия Томского политехнического университета: Промышленная кибернетика
In technical cybernetic systems, it is impossible to do without exchanging information between devices. Most modern control devices are digital, but it is not uncommon for an analog signal to be required to control executive devices, which can be changed
Kirill A. Volobuev   +2 more
doaj   +1 more source

Estudo de um conversor CC-CC em ponte completa, com comutação suave e baixas perdas de condução [PDF]

open access: yes, 1995
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoEstudo de um conversor CC-CC em ponte completa, visando empregá-lo como fonte de alimentação de alta densidade de potência substituindo ao tradicional conversor em ponte ...
Costa, Wadaed Uturbey da
core  

Vertical NAND Flash Memory‐Based Bayesian Neural Networks With Intrinsic Gaussian Weight Sampling

open access: yesAdvanced Intelligent Systems, EarlyView.
Commercial vertical NAND flash memory supports Bayesian neural networks by using paired cells to produce bell‐shaped weight distributions. Read voltage controls their spread without additional memory cells or changes to the array structure. Simulations based on device measurements demonstrate improved uncertainty estimation and accuracy gains of up to ...
Sung‐Ho Park   +8 more
wiley   +1 more source

PWM similarity to well-characterized PWM.

open access: yes, 2013
ψ-test of predicted PWM to experimental PWM demonstrates prediction accuracy. The smaller ψ-test compared to Even-PWM the better.This table shows the ψ-test [25] value of each TF's predicted PWM(Pre-PWM) via experimental PWM collected from JASPAR(33 ...
Dustin E. Schones (105225)   +4 more
core   +1 more source

An Active Knee–Ankle–Foot Orthosis With Torque‐Dense, Low‐Impedance Knee Actuation

open access: yesAdvanced Intelligent Systems, EarlyView.
This article presents the simulation, design, and clinical validation of a robotic active KAFO with torque‐sensitive actuation. By passively and continuously adapting the transmission ratio in response to the knee torque, the torque‐sensitive actuator overcomes the tradeoff between torque, weight, and impedance observed in conventional robot actuators,
Brendon Ortolano   +4 more
wiley   +1 more source

ESTIMATION OF LOSSES IN THE MULTI-PHASE FREQUENCY CONVERTERS FOR ELECTRIC GROUND TRACTION SYSTEM OF AIRCRAFT

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Improving the energy efficiency of vehicles is an essential feature of scientific and technical progress. One means of increasing the energy efficiency of transport is the introduction of electric drive with multiphase induction motors.
A. G. Logacheva   +2 more
doaj   +1 more source

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