Pulse Transformer
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Conversor CC/CA de alta freqüência baseado em inversores ressonantes com comutação seqüencial para excitação de uma tocha indutiva a plasma térmico
This work describes the study, the analysis, the project methodology and the constructive details of a high frequency DC/AC resonant series converter using sequential commutation techniques for the excitation of an inductive coupled thermal plasma torch. The aim of this thesis is to show the new modulation technique potentialities and to present a technologi
Publicado em: 2010
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2. Circuito de comando de base proporcional isolado auto-oscilante para conversor CC/CC "Half-Bridge": uma metodologia de projeto / Isolated proportional base driver for half-bridge DC/DC converter: a design methodology
O presente trabalho apresenta o estudo, o equacionamento, a simulação e uma metodologia de projeto para um conversor CC/CC do tipo Half-Bridge, com transformador de potência alimentado por transistores bipolares em semi-ponte, com circuito de acionamento de base proporcional isolado. O circuito possui um controle de sincronismo aplicado ao transformador d
Publicado em: 2010
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3. Duble forward converter with two main and auxiliary switches and soft switching / Conversor duplo Forward PWM a duas chaves principais e duas chaves auxiliares com comutação suave
Converting a constant voltage in another constant voltage is necessary in many technological applications, starting from charging a cell phone battery to feed a DC motor in industrial plants. This work presents one more way to convert a Constant voltage based on a new circuit topology. This topology has its embryo in the simplest step-down configuration, the
Publicado em: 2006
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4. Duble forward converter with two main and auxiliary switches and soft switching / Conversor duplo Forward PWM a duas chaves principais e duas chaves auxiliares com comutaÃÃo suave
Converting a constant voltage in another constant voltage is necessary in many technological applications, starting from charging a cell phone battery to feed a DC motor in industrial plants. This work presents one more way to convert a Constant voltage based on a new circuit topology. This topology has its embryo in the simplest step-down configuration, the
Publicado em: 2006
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5. Design, development and implementation of a solid-state pulse modulator for high-power pulse transmitters / Projeto, desenvolvimento e construção de um modulador de pulso estado-solido para transmissores pulsados de alta potencia
This work describes the development of a modular line-type solid-state pulse modulator topology to be applied in magnetron pulsed power radar transmitters, commonly found on tracking, weather and air traffic management radars. This research includes the design, development and assembling of a pulsed modulator for the Barreira do Inferno Launching Center (CLB
Publicado em: 2005
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6. Estudo e implementação de estrategia para minimização de sobretensões produzidas por inversores PWM em sistemas de acionamento de motores eletricos com cabos longos
The analysis of long distance induction motor driving systems is performed. This kind of system, usuaIly driven by a voltage source inverter, has been employed by Petrobras for oi! exploitation in deepwater. Due to the excessive cable length, undesirable effects such as overvoltages and overcurrents are recorded at the motor and the inverter, respectively. P
Publicado em: 2001