Results 41 to 50 of about 239,366 (313)
Column-row addressing of thermo-optic phase shifters for controlling large silicon photonic circuits [PDF]
, 2020 We demonstrate a time-multiplexed row-column addressing scheme to drive thermo-optic phase shifters in a silicon photonic circuit. By integrating a diode in series with the heater, we can connect $N \times M$ heaters in an matrix topology to $N$ row and $
Alves Júnior, Antônio Ribeiro +5 more
core +1 more source
A New Transformerless Single-Phase Buck-Boost AC Voltage Regulator
Advances in Electrical and Computer Engineering, 2016 Voltage regulation is one of the important goals for electrical sources and consumers. In this paper a new transformerless single-phase AC voltage regulator based on buck-boost converter topology is presented.
YALCIN, F., HIMMELSTOSS, F. A., , F.
doaj +1 more source
International Journal of Applied Mechanics and Engineering, 2015 In order to estimate the inductive power set in the armature of the high-speed solenoid valve (HSV) during the open loop control (OLC) using pulse width modulation (PWM) an analytical explicit formula has been derived.
R. Goraj
doaj +1 more source
PID-fuzzy of DC motors using Raspberry PI
Visión Electrónica, 2020 This article describes the implementation of a fuzzy and a PID control system for the velocity and torque of a DC power motor, based in the variation of the armor current and its duty cycle. The control system has been applied to a medium power DC motor,
Sebastián Herrera Aristizábal +3 more
doaj +1 more source
An audio FIR-DAC in a BCD process for high power Class-D amplifiers [PDF]
, 2005 A 322 coefficient semi-digital FIR-DAC using a 1-bit PWM input signal was designed and implemented in a high voltage, audio power bipolar CMOS DMOS (BCD) process. This facilitates digital input signals for an analog class-D amplifier in BCD.
Annema, A.J. +5 more
core +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Cognitive impairment (CI) affects the quality of life in multiple sclerosis (MS). Identifying influencing factors is key to improving CI monitoring. This systematic review and meta‐analysis examines clinical and sociodemographic variables impacting the cognitive screening Symbol Digit Modalities Test (SDMT) performance across MS ...
Katalin Lugosi +8 more
wiley +1 more source
Optimizing Decision Tree Attack on CAS Scheme
Advances in Electrical and Computer Engineering, 2016 In this paper we show a successful side-channel timing attack on a well-known high-complexity cognitive authentication (CAS) scheme. We exploit the weakness of CAS scheme that comes from the asymmetry of the virtual interface and graphical layout which
PERKOVIC, T., BUGARIC, M., CAGALJ, M.
doaj +1 more source
Design and Analysis of Three-Phase Three-Level PWM Inverter [PDF]
, 2010 Design of three-phase three level PWM inverter and analysis of the output current harmonics are presented in this paper. The three-level inverter is designed to supply three-phase load and it is controlled by FPGA under several modulation techniques ...
Dahono, Pekik Argo
core
FPGA Implementation of a General Space Vector Approach on a 6-Leg Voltage Source Inverter [PDF]
, 2011 A general algorithm of a Space Vector approach is implemented on a 6-leg VSI controlling a PM synchronous machine with three independent phases. In this last case, the necessity of controlling the zero-sequence current motivates the choice of a special ...
BRUYERE, Antoine +6 more
core +6 more sources
Hybrid UP-PWM Scheme for HERIC Inverter to Improve Power Quality and Efficiency
IEEE transactions on power electronics, 2019 The highly efficient and reliable inverter concept (HERIC) inverter is a cost-effective topology, which has low leakage currents and a relatively high efficiency. Thus, it is very suitable for transformerless photovoltaic systems.
Zhongting Tang +6 more
semanticscholar +1 more source