Buscar
Mostrando ítems 1-10 de 99
A modular multilevel series/parallel converter for a wide frequency range operation
(IEEE Transactions on Power Electronics, 2020)
A modular multilevel series/parallel converter for a wide frequency range operation
(IEEE Transactions on Power Electronics, 2020)
Análise da transferência de ondulação de baixa frequência em drivers de LEDs
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2019-03-01)
This work presents the analysis of low frequency ripple transmission from the bus voltage to the output current in LED drivers, in the power control stage. The buck, boost and buck-boost converters, operating in discontinuous ...
Projeto e desenvolvimento de conversores buck operando em ccm e dcm para análise da relação de transferência da ondulação de baixa frequência em leds de potência
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2018-07-25)
This work presents the design and implementation of two Buck converters operating in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) for the activation of 20 power LEDs associated in series. The ...
Alternative setup for estimating reliable frequency values in a ripple tank
(Universidad del Pacífico. Centro de InvestigaciónPerú, 2017-01)
In this paper, we introduce an innovative, low-cost and easy experimental setup to be used in a traditional ripple tank when a frequency generator is unavailable. This configuration was carried out by undergraduate students. ...
Alternative setup for estimating reliable frequency values in a ripple tank
(Universidad del Pacífico. Centro de Investigación, 2017-01)
In this paper, we introduce an innovative, low-cost and easy experimental setup to be used in a traditional ripple tank when a frequency generator is unavailable. This configuration was carried out by undergraduate students. ...
Alternative setup for estimating reliable frequency values in a ripple tank
(Universidad del Pacífico. Centro de Investigación, 2017-01)
In this paper, we introduce an innovative, low-cost and easy experimental setup to be used in a traditional ripple tank when a frequency generator is unavailable. This configuration was carried out by undergraduate students. ...
Projeto e implementação de uma lâmpada led bulbo em conformidade com aspectos elétricos, térmicos e ópticos exigidos pelas normativas brasileiras
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2018-08-31)
This work presents an LED bulb lamp conception aiming to replace traditional lighting technologies such as incandescent and compact fluorescent lamps. The LED lamp manufacture and sale requirements based on INMETRO Ordinance ...
Estudo e desenvolvimento do controle de tensão de um retificador monofásico com compensação ativa de ondulação de baixa frequência utilizando capacitores de alta durabilidade para alimentação de leds
(Universidade Federal do PampaUNIPAMPABrasilCampus Alegrete, 2018)
Variable speed refrigeration system with HPF input rectifier stage
(2008-09-22)
This paper is based on the analysis and implementation of a new drive system applied to refrigeration systems, complying with the restrictions imposed by the IEC standards (Harmonic/Flicker/EMI-Electromagnetic Interference ...