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Table-based PWM for all-digital RF transmitters
(John Wiley & Sons Ltd, 2019-02)
In this paper, a novel pulse-width modulator (PWM) for an all-digital PWM transmitter based on switching amplification is presented. In this approach, each symbol is represented by a sequence of pre-computed PWM pulse ...
Implementação de um modulador PWM para inversor multinível ponte H em cascata de 7 níveis em FPGA
(Universidade Estadual Paulista (Unesp), 2022-03-18)
This paper presents the implementation in a FPGA of a PWM modulation using different PWM modulation techniques for single-phase seven level cascaded H-bridge inverter. For this, the working principle of this inverter and ...
Volterra Models for Digital PWM and Their Inverses
(Institute Of Electrical And Electronics Engineers, 2015-10)
In an all-digital class-D audio amplifier each signal sample is mapped into a pulse using digital pulse-width-modulation (PWM), and this intrinsically generates nonlinear distortion. This article develops discrete-time ...
Estudo do PWM espaço vetorial para o inversor de dois-níveis para carga trifásica
(Universidade Federal de Sergipe - Pró-reitoria de Pós-Graduação e Pesquisa - Coordenação de Pesquisa, 2020)
Modelagem e simulação de controle escalar de velocidade de um motor de indução trifásico
(Universidade Estadual Paulista (Unesp), 2022-07-11)
No presente trabalho, foi elaborada uma revisão bibliográfica acerca do modelo
dinâmico do circuito elétrico do motor de indução trifásico, sobre conversores de
frequência e algumas técnicas de controle de velocidade ...
Digital Distortion-Free PWM and Click Modulation
(Institute of Electrical and Electronics Engineers, 2018-03)
This brief exhibits the relationship between the analog click modulator, which produces a binary pulse width modulation (PWM) signal with separated baseband, and recently reported fully digital, baseband distortion-free ...
Simple Real-Time Digital PWM Implementation for class-D Amplifiers With Distortion-free Baseband
(Institute Of Electrical And Electronics Engineers, 2014-10)
A real-time, digital algorithm for pulse width modulation (PWM) with distortion-free baseband is developed in this paper. The algorithm not only eliminates the intrinsic baseband distortion of digital PWM but also avoids ...
A n-PWM DC-DC Converter Modeling: Switched Systems Meets Fourier Series
(2021-01-01)
In this work we propose a steady-state modeling of DC-DC converters driven by multiple pulse width modulation (PWM) signals. The proposed DC-DC converter modeling uses a switched state-space framework and the switching ...
Real-Time Digital PWM With Zero Baseband Distortion and Low Switching Frequency
(Ieee-inst Electrical Electronics Engineers Inc, 2013-06)
A discrete-time pulse width modulator (PWM) with zero baseband distortion for arbitrary band-limited modulating signals is developed in this paper. It is based on adjusting the duty-cycles of the PWMsuch that the samples ...
PWM Method to Eliminate Power Sources in a Non-Redundant 27-Level Inverter for Machine Drive Applications
(IEEE, 2006)
A non-redundant, three-stage, 27-level inverter using "H" converters, is analysed for machine drive applications. The main advantage of this converter is the optimisation of levels with a minimum number of semiconductors. ...