Results 101 to 110 of about 1,973,197 (213)

Zero-voltage-switching totem-pole bridgeless boost rectifier with reduced reverse-recovery problem for power factor correction

open access: yes, 2012
A novel totem-pole bridgeless boost rectifier with ZVS operation is proposed for power factor correction. In the proposed rectifier, conduction losses are lowered by eliminating full-bridge diode rectifier.
Kim,JaeHyun   +5 more
core   +1 more source

Accurate ZVS Analysis of a Full-Bridge T-Type Resonant Converter for a 20-kW Unfolding-Based AC-DC Topology

open access: yesIEEE Open Journal of Power Electronics
Unfolding-based single-stage ac-dc converters offer benefits in terms of efficiency and power density due to the low-frequency operation of the Unfolder, resulting in negligible switching losses.
SHUBHANGI GURUDIWAN   +3 more
doaj   +1 more source

Zero voltage zero current three level DC-DC converter

open access: yes, 2000
A three-level DC-to-DC converter is provided having zero-voltage and zero-current switching (ZVZCS). A flying capacitor is provided on the primary side of the converter to achieve zero voltage switching (ZVS). In addition, during freewheeling (i.e., when

core  

A New Zero-Voltage-Switching Two-Transformer Boost Converter

open access: yes, 2005
A new zero voltage switching (ZVS) 2-transformer boost converter is proposed in this paper. The proposed converter has the advantage that the magnetizing inductor of the transformer acts for the boost inductor without additional inductor.
문건우   +3 more
core   +1 more source

Research on High Efficient Resonant Full-bridge Converter with High Voltage SiC MOSFET

open access: yesKongzhi Yu Xinxi Jishu, 2016
With SiC MOSFET, resonant converter can achieve high frequency and high efficiency, thus increasing the power density with reducing total cost and simplify topology.
Jimmy Liu, John Mookken, Kin Lap
doaj  

Optically Triggered Self-Adaptive Zero Voltage Switching [PDF]

open access: yes
Zero voltage switching (ZVS) is useful to increase power electronics efficiency but difficult to achieve due to the nonlinear parasitic capacitance of the power semiconductors and varying load current.

core   +2 more sources

Estudo e implementação de controle digital para o conversor ponte completa e comutação suave com modulação por deslocamento de fase (FB-ZVS-PS) [PDF]

open access: yes, 2003
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia ElétricaO presente trabalho aborda o desenvolvimento e implementação de um sistema de controle digital para o estágio de saída de
Carvalho, Rafael Takasaki
core  

Zero-voltage switching flyback-boost converter with voltage-doubler rectifier for high step-up applications

open access: yes, 2010
A zero-voltage switching (ZVS) flyback-boost (FB) converter with a voltage-doubler rectifier (VDR) has been proposed. By combining the common part between a flyback converter and a boost converter as a parallel-input/series-output (PISO) configuration ...
Hyun-Wook Seong   +9 more
core   +1 more source

A New Zero-Voltage Switching Half-Bridge Converter with Reduced Rectifier Voltage Ringing

open access: yes, 2011
Symmetric half-bridge (SHB) converter has been widely used in PC power supply application since it has no DC offset of magnetizing current and it has symmetric device stress.
Moon, GunWoo   +3 more
core   +1 more source

DAB unified ZVS control strategy with optimal current stress in full power range under TPS control

open access: yesIET Power Electronics
Current stress and soft switching range are important performance indexes of dual active bridge DC–DC converter. Based on three‐phase shift control, Karush–Kuhn–Tucker (KKT) algorithm is used to solve the optimal control strategy of current stress under ...
Shuai Cheng   +3 more
doaj   +1 more source

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