Results 31 to 40 of about 157,953 (310)

Optimum Solving SHEPWM Equations for Single Phase Inverter Using Resultant Method [PDF]

open access: yesEngineering and Technology Journal, 2008
This paper represents new method to determine the optimum switching angles forSelective Harmonic Eliminated PWM (SHEPWM) inverter. Such switching angles aredefined by a set of nonlinear equations to be solved using the Resultant method.
Jamal A. Mohammed
doaj   +1 more source

Increasing Voltage Gain by New Structure of Inductive Switching DC-DC Converter [PDF]

open access: yesAUT Journal of Electrical Engineering, 2017
In a photovoltaic system, sun light energy is converted to electricity. The generatedelectricity has a low DC voltage. In order to increase voltage generated by photovoltaic cells (PV),an additive DC-DC converter is required to raise the low voltage to a
S. Nabati, A. Siadatan, S. B. Mozafari
doaj   +1 more source

A second-order PWM-in/PWM-out class-D audio amplifier [PDF]

open access: yesIMA Journal of Applied Mathematics, 2011
Class-D audio amplifiers convert an audio signal into a high-frequency square wave whose switching times are modulated according to that audio signal. Thus, they operate using so-called pulse-width modulation. When the high-frequency components of the output square wave are removed by filtering, the remaining lower frequency components can reproduce ...
Cox, Stephen Michael   +2 more
openaire   +3 more sources

Trajectory Planning for Spacecraft Rendezvous in Elliptical Orbits with On / Off Thrusters [PDF]

open access: yes, 2014
The 19th World Congress of the International Federation of Automatic Control 2014 Cape Town, SudáfricaIn a previous work, the authors developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal Pulse-Width Modulated (PWM ...
Camacho, Eduardo F.   +2 more
core   +1 more source

Detection Technique of Partial Discharges at Impulse Voltage with Appropriate Filter Settings for Signal Separation

open access: yesEnergies, 2019
Due to the increased utilization of electric converters feeding rotating high voltage motors, their insulation is subject to transient impulse and high frequency oscillating voltages.
Karsten Backhaus   +2 more
doaj   +1 more source

Analysis and mitigation of dead time harmonics in the single-phase full-bridge PWM converters with repetitive controllers [PDF]

open access: yes, 2018
In order to prevent the power switching devices (e.g., the Insulated-Gate-Bipolar-Transistor, IGBT) from shoot through in voltage source converters during a switching period, the dead time is added either in the hardware driver circuits of the IGBTs or ...
Blaabjerg, Frede   +3 more
core   +2 more sources

Trajectory Planning for Spacecraft Rendezvous with On / Off Thrusters [PDF]

open access: yes, 2011
18th World CongressThe International Federation of Automatic ControlMilano (Italy) August 28 - September 2The objective of this work is to present a trajectory planning algorithm for spacecraft rendezvous that is able to incorporate Pulse-Width Modulated
Camacho, Eduardo F.   +2 more
core   +4 more sources

A New Transformerless Single-Phase Buck-Boost AC Voltage Regulator

open access: yesAdvances 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

Fast Method for the Iron Losses Prediction in Inverter Fed Induction Motors [PDF]

open access: yes, 2010
In this paper an easy method for the iron loss prediction in PWM inverter fed induction motors is presented. The method was initially proposed and validated for the prediction of the iron losses in non-oriented soft magnetic material with PWM supply ...
Boglietti, Aldo   +2 more
core   +1 more source

Optimizing Decision Tree Attack on CAS Scheme

open access: yesAdvances 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

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