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Circuitos de acionamento para lâmpada LED tubular utilizando conversores a capacitor chaveado
(Universidade Federal de Santa Maria, 2017-08-11)
This work presents the design, simulation and experimental development of a topology using switched capacitor to feed a LED lamp to street lighting. The designed and tested circuits aim to feed a LED tubular lamp with power ...
Controle ressonante aplicado à redução de capacitância de barramento em conversores com estágios de potência integrados para alimentação de LEDs a partir da rede CA
(Universidade Federal de Santa Maria, 2017-08-18)
This thesis presents a new methodology to reduce bus capacitors in electronic systems with integrated power stages, applied to the LED driver. This reduction is proposed aiming to replace the traditional electrolytic ...
Estudo comparativo entre semicondutores de silício e nitreto de gálio em circuitos de acionamento de leds
(Universidade Federal de Santa Maria, 2017-03-03)
This dissertation presents a comparative study about the performance of silicon (Si) and gallium nitride (GaN) semiconductors in drivers for light emitting diodes. Hereby, it is expected to provide the theoretical background ...
Técnicas de mitigação de interferência eletromagnética em equipamentos de iluminação a LED
(Universidade Federal de Santa Maria, 2017-12-22)
This dissertation introduces techniques for mitigation of conducted electromagnetic
interference in lighting equipment using LEDs. This dissertation intends to offer the theoretical
basis necessary for the development ...