Results 21 to 30 of about 336,702 (243)

An Active-Clamp Forward Inverter Featuring Soft Switching and Electrical Isolation

open access: yesApplied Sciences, 2020
Traditional photovoltaic (PV) grid-connection inverters with sinusoidal pulse-width modulation (SPWM) control suffer the problem of buck-typed conversion.
Chien-Hsuan Chang   +3 more
doaj   +1 more source

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

open access: yes, 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   +5 more
core   +2 more sources

Combined Forward-Flyback-Converter with Only Two Diodes - Function and Modelling

open access: yesCommunications, 2011
A combined forward and flyback converter with a simple two windings transformer, an inductor, an active switch, two diodes and a buffer capacitor is explained. The voltage transfer ratio and the demagnetizing condition are derived.
Felix A. Himmelstoss, Helmut L. Votzi
doaj   +1 more source

Analysis of the Input Current Distortion and Guidelines for Designing High Power Factor Quasi-Resonant Flyback LED Drivers

open access: yesEnergies, 2020
Nowadays, LED lamps have become a widespread solution in different lighting systems due to their high brightness, efficiency, long lifespan, high reliability and environmental friendliness.
Claudio Adragna   +4 more
doaj   +1 more source

Design and analysis of an input‐series quasi‐resonant flyback high‐voltage SMPS based on an integrated transformer

open access: yesIET Power Electronics, 2022
An input‐series quasi‐resonant (QR) flyback high‐voltage switching mode power supply (SMPS) based on an integrated transformer has been designed and analysed.
Yipei Wang   +4 more
doaj   +1 more source

A 2-D nonlinear FEA tool embedded in Matlab/Simulink surrounding for application of electromagnetic field analysis in power converters [PDF]

open access: yes, 2007
This paper presents a 2-D nonlinear finite element analysis (FEA) tool embedded in Matlab/Simulink surrounding for the application of electromagnetic field analysis in power converters.
Chen, J, Guo, Y, Zhu, J
core   +1 more source

A High-Efficiency QR Flyback DC–DC Converter with Reduced Switch Voltage Stress Realized by Applying a Self-Driven Active Snubber (SDAS)

open access: yesEnergies, 2023
In this paper, a QR flyback converter using a self-driven active snubber (SDAS) was proposed to solve the problem of voltage surge in the switch of QR flyback converters.
Jeong-Sang Yoo   +2 more
doaj   +1 more source

One-Quadrant Switched-Mode Power Converters [PDF]

open access: yes, 2016
This article presents the main topics related to one-quadrant power converters. The basic topologies are analysed and a simple methodology to obtain the steady-state output-input voltage ratio is set out.
Petrocelli, R.
core   +3 more sources

Multicell Interleaved Flyback Using Intercell Transformers

open access: yesIEEE Transactions on Power Electronics, 2007
An original converter composed of interleaved flyback is presented. The cells are interconnected through intercell transformers replacing the standard multi-winding inductors used as insulation and storage magnetic device in the flyback. The combination of the interleaving effects and of the intercell transformer characteristics allows eliminating the ...
Forest, François   +3 more
openaire   +2 more sources

Auxiliary power supply based on a modular ISOP Flyback configuration with very high input voltage [PDF]

open access: yes, 2016
This paper proposes a Flyback-based Input-Series Output-Parallel (ISOP) Auxiliary Power Supply (APS), intended to feed the control system of the cells of a Solid-State Transformer (SST).
Arias Pérez de Azpeitia, Manuel   +6 more
core   +1 more source

Home - About - Disclaimer - Privacy