The paper presents the modeling, simulation and analysis of an AC-DC converter based PWM rectifier. It provides a suitable control algorithm for a pulse width modulation rectifier which reduces ripple from the DC output side as well as shapes the input current properly. The basic objective of a PWM rectifier is to regulate the DC output voltage and also ensure a sinusoidal input current and uni...

This paper is a simple and systematic approaches to the design and analysis a pulse width modulation (PWM) based sliding mode controller for buck DC-DC Converters. Various aspects of the design, including the practical problems and the proposed solutions, are detailed. However, these control strategies can't compensate for large load current and input voltage variations. In this paper, a new co...

Original scientific paper Nowadays, the computer control has to be taken into account in any field of study. Due to the advantage of its binary system, it can very quickly control the signals from devices. This paper is focused on the analysis of some studies carried out on the PWM (Pulse Width Modulation) technologies. The engines used nowadays are provided with an electronic injection system....

This work proposes a mini-LED driving circuit that adopts the pulse-width modulation (PWM) method for use in liquid-crystal display (LCD) backlight. The proposed can compensate threshold voltage ( $\text{V}_{\mathrm{ TH}}$ ) variation...

Servomotors have already been around for some decades and they are extremely popular among roboticists due to their simple control technique, reliability and low-cost. They are usually controlled by using Pulse Width Modulation (PWM) and this paper aims to keep the idea of simplicity and low-cost, while introducing a new control technique: Pulse Frequency Modulation (PFM). The objective of this...

A software defined radio (SDR) terminal promotes programmable realizations of the physical layer functionalities. A lot of research work has been done in applying digital signal processors (DSP) and field programmable gate arrays (FPGA) to implement the baseband functionalities of the physical layer. In this paper, the programmable solutions are extended to the radio frequency (RF) band for the...

This paper represents a comparative study of isolated resonant topologies for photovoltaic application such as half bridge, full bridge and push pull topology. The performance of these topologies is analyzed with the help of Pulse Width Modulation (PWM) technique. The stressful behavior of the switches is reduced by soft switching technique. So, the primary side switches utilize zero voltage sw...

The conventional SVPWM algorithm gives good performance for control of induction motor drive, but it produces more acoustical noise resulting in increased total harmonics distortion. The random pulse width modulation (RPWM) techniques has become an established means for mitigation of undesirable side effects in PWM converters, the use of voltage source inverters in adjustable speed ac drives in...

We propose a digital driving technique using pulse-density modulation (PDM) for an active-matrix organic light-emitting diode (AMOLED) to effectively suppress the false image contour in conventional pulsewidth modulation (PWM) while achieving considerably low operating frequency. A compact first-order digital modulator provides the PDM signal to the panel. A 2.2-inch QVGA AMOLED system using th...

The total number of switching pulses permitted in one-quarter the fundamental-cycle an inverter is restricted due to restrictions losses high-power devices. elimination major low-order dominating harmonics using SHEPWM (Selective Harmonic Elimination) suggested this research paper. positive or negative voltage transition at instant where fundamental has greatest slope distinguishes various type...