Results 51 to 60 of about 266 (133)

Lossless Snubber Circuits For Current Doubler Rectifiers To Reduce Reverse-Recovery Losses

open access: yes, 2003
Current doubler rectifier (CDR) is one of the best candidates for high output current DC-DC converters. In this paper, several conventional CDR snubber circuits are evaluated, and two passive lossless snubber circuits for the CDR are proposed to reduce ...
Abu-Qahouq, Jaber A.   +2 more
core  

Soft switching techniques for multilevel inverters [PDF]

open access: yes, 1998
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico.
Yuan, Xiaoming
core  

A New Family of Soft Single Switched DC-DC Converters with Lossless Passive Snubber

open access: yesMajlesi Journal of Electrical Engineering
In this paper, a novel lossless snubber is introduced that provides ZVS conditions for both On and Off instant of converter switches. On one hand, the energy of the snubber is optimally transmitted to the output so that no significant losses are imposed ...
Shabnam Nasr Esfahani   +2 more
doaj  

A snubber cell for single-stage PFC with a boost type input current shaper and isolated dc/dc converter

open access: yes, 2011
This paper proposes a lossless snubber cell for all single-stage PFC with a boost type input current shaper and an isolated dc/dc converter. The single auxiliary switch of the snubber cell shares the same switching signal as the PFC main switch; both ...
John, Shen   +9 more
core   +1 more source

A New Active Lossless Snubber for Half-Bridge Dual converter

open access: yes, 2002
A new active lossless snubber for half-bridge dual converter(that is called 'dual converter') is proposed in this paper. It features soft switching(ZVS) as well as turn-off snubbing in both main and auxiliary switches.
문건우   +4 more
core  

Estudo, projeto e implementação de unidades retificadoras de -48V/10A para telecomunicações utilizando circuitos de supervisão microcontrolados [PDF]

open access: yes, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho tem por objetivo o estudo, projeto e implementação de Unidades Retificadoras de -48V/10A para aplicação em
Alves, Anderson
core  

Passive lossless snubbers using the coupled inductor method for the soft switching capability of boost PFC rectifiers

open access: yes, 2015
In order to minimize switching losses for high power applications, a boost PFC rectifier with a novel passive lossless snubber circuit is proposed. The proposed lossless snubber is composed of coupled inductors merged into a boost inductor.
Jung, Jee-Hoon   +4 more
core   +1 more source

A novel unified passive lossless turn-on and turn-off snubber for high-frequency power converter applications

open access: yes, 1996
A novel unified passive lossless turn-on and turn-off snubber is proposed for a single-ended switch, where energy trapped in the snubber inductor and the capacitor is recovered into the DC rail and the load, without any active devices or resistors.
Green, T. C.   +3 more
core  

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