Results 31 to 40 of about 31,027 (310)

A review on flicker-free ac-dc LED drivers for single-phase and three-phase ac power grids [PDF]

, 2019
Light-Emitting Diodes (LEDs) are coming strongly into the lighting market due to their advantages over conventional lighting solutions: energy efficient, controllable in both light and color, long lifetime, lack of a warm-up period and high power density.
Arias Pérez de Azpeitia, Manuel, Castro Álvarez, Ignacio, González Lamar, Diego, Hernando Álvarez, Marta María, Sebastián Zúñiga, Francisco Javier, Vázquez Ardura, Aitor   +5 more
core   +2 more sources

A comparative study of different optimization methods for resonance half-bridge converter [PDF]

, 2018
The LLC resonance half-bridge converter is one of the most popular DC-DC converters and could easily inspire researchers to design a high-efficiency and high-power-density converter.
Martínez García, Herminio, Salehi, Navid, Velasco Quesada, Guillermo   +2 more
core   +2 more sources

A stability improvement control strategy research for LLC resonant converter with single neuron PI-I double closed loop control

Ain Shams Engineering Journal
LLC resonant converters are widely used in the aerospace field. However, under traditional single-loop control, LLC resonant converters are prone to instability in the face of high-power load disturbances, which fails to meet the high stability ...
Zhangang Yang, Qingyu Zhou
doaj   +1 more source

Transformer design difficulties of current resonant converter for high power density and wide input voltage range [PDF]

, 2017
A current resonant converter including wider input voltage range and higher power density is required for various applications. However, in our study, it has been found that the drastic increasing of the transformer winding loss becomes a severe problem.
Abe Seiya, Zaitsu Toshiyuki
core   +2 more sources

Applying a Current Sharing Method Based on Partial Energy Processing to Multiphase LLC Resonant Converters

Energies
In this paper, partial energy processing is applied to the current sharing technique for multiphase LLC resonant converters. The proposed circuit consists of an LLC resonant converter and a flyback converter, where the flyback converter is only used for ...
Yue-Lin Lee, Han-Hsiang Chen, Kuo-Ing Hwu   +2 more
doaj   +1 more source

Impedance Modeling and Stability Analysis for Cascade System of Three-Phase PWM Rectifier and LLC Resonant Converter

Energies, 2018
In this paper; the impedance model of PWM rectifier and LLC resonant converter are deduced, and the stability analysis of cascade system is studied. The principle of three-phase PWM rectifier is introduced; and the small signal model in d-q coordinate ...
Rutian Wang, Yuyang Wu, Guoqing He, Ying Lv, Jiaxing Du, Yanhao Li   +5 more
doaj   +1 more source

A Novel Topology for Solar PV Inverter Based on an LLC Resonant Converter With Optimal Frequency and Phase-Shift Control

IEEE transactions on industry applications, 2022
In this article, a new topology for a grid-connected solar photovoltaic inverter for the direct connection to the medium-voltage grid is proposed. This topology employs an LLC resonant converter with a high-frequency (HF) isolation transformer in the dc ...
N. Altin, S. Ozdemir, Mehdy Khayamy, A. Nasiri   +3 more
semanticscholar   +1 more source

Rectifier Current Control for an LLC Resonant Converter Based on a Simplified Linearized Model

Energies, 2018
In this paper, a rectifier current control for an LLC resonant converter is proposed, based on a simplified, two-order, linearized model that adds a rectifier current feedback inner loop to improve dynamic performance.
Zhijian Fang, Junhua Wang, Shanxu Duan, Liangle Xiao, Guozheng Hu, Qisheng Liu   +5 more
doaj   +1 more source

Design of a Bidirectional CL³C Full-Bridge Resonant Converter for Battery Energy Storage Systems

Energies, 2022
In this study, a bidirectional CL3C full-bridge resonant converter was developed using a bidirectional active bridge converter as the main framework to improve conventional LLC resonant converters.
Yih-Her Yan, Yong-Nong Chang, Zhi-Xuan Peng   +2 more
doaj   +1 more source

Deep Learning-Based Model Predictive Control for Resonant Power Converters

, 2020
Resonant power converters offer improved levels of efficiency and power density. In order to implement such systems, advanced control techniques are required to take the most of the power converter.
Karg, Benjamin, Lucia, Oscar, Lucia, Sergio, Navarro, Denis, Sarnago, Hector   +4 more
core   +1 more source