Results 81 to 90 of about 7,521 (231)

Design Optimization Methodology for Power Converters based on Global Energy Requirement Criteria. Application to a Flyback DC-DC Structure [PDF]

open access: yes, 2011
International audienceThis paper discusses a design methodology for power electronic converters according to the Global Energy Requirement (GER) criterion, i.e. the primary energy consumption over their entire life cycle.
Barruel, Franck   +2 more
core   +1 more source

A life prediction scheme for electrolytic capacitors in power converters without current sensor [PDF]

open access: yes, 2010
Predicting the expected life of switching power supply is essential since unexpected failure of the subsystem can produce enormous loss. Electrolytic capacitor is the weakest among various power components in a power converter.
Pang, HM, Pong, BMH
core   +1 more source

Three‐dimensional radial echo‐planar spectroscopic imaging for hyperpolarized 13C MRSI in vivo

open access: yesMagnetic Resonance in Medicine, Volume 93, Issue 1, Page 31-41, January 2025.
Abstract Purpose To demonstrate the feasibility of 3D echo‐planar spectroscopic imaging (EPSI) technique with rapid volumetric radial k‐space sampling for hyperpolarized (HP) 13C magnetic resonance spectroscopic imaging (MRSI) in vivo. Methods A radial EPSI (rEPSI) was implemented on a 3 T clinical PET/MR system.
Marcel Awenius   +14 more
wiley   +1 more source

Isolated DC-DC UPS based in a forward-forward converter analysis and design [PDF]

open access: yes, 2008
This paper presents the analysis, design and simulation from a simple DC-UPS converter with integrated back-up and automatic transition. This converter makes automatic transition between the main AC and the battery when a failure occurs, and it delivers ...
Esparza González, Mario S.   +3 more
core   +1 more source

Flyback Converter with Quadratic Pre-Stage

open access: yesWSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS, 2020
A flyback converter with an additional step-down stage with a tapped inductor is presented. The function of the converter is described and the voltage transformation rates for the continuous mode are derived. The dimensioning equations for the devices are given. The dynamic model is calculated and simulations are shown.
Felix A. Himmelstoss, Karl H. Edelmoser
openaire   +1 more source

Particle‐based MR modeling with diffusion, microstructure, and enzymatic reactions

open access: yesMagnetic Resonance in Medicine, Volume 93, Issue 1, Page 369-383, January 2025.
Abstract Purpose To develop a novel particle‐based in silico MR model and demonstrate applications of this model to signal mechanisms which are affected by the spatial organization of particles, including metabolic reaction kinetics, microstructural effects on diffusion, and radiofrequency (RF) refocusing effects in gradient‐echo sequences. Methods The
Dylan Archer Dingwell   +1 more
wiley   +1 more source

Slope Compensation Design for a Peak Current-Mode Controlled Boost-Flyback Converter

open access: yesEnergies, 2018
Peak current-mode control is widely used in power converters and involves the use of an external compensation ramp to suppress undesired behaviors and to enhance the stability range of the Period-1 orbit.
Juan-Guillermo Muñoz   +3 more
doaj   +1 more source

Implementasi flyback converter sebagai catu daya gate driver mosfet pada buck converter [PDF]

open access: yes
Power supplies that operate in switching mode have higher efficiency compared to linear power supplies. Thus, almost all the latest power supplies operate in switching mode or known as SMPS (Switched Mode Power Supply). The flyback converter isolates the
Anggarda, Pilar Putra   +3 more
core  

The voltage-controlled compensation ramp: A new waveshaping technique for power factor correctors [PDF]

open access: yes, 2008
IEEE Applied Power Electronics Conference (APEC) (27. 2008. Austin, Texas)This paper deals with a new control method for Power Factor Correctors. Control is carried out by a standard IC controller for peak current-mode dc-dc converters, with only an ...
Arias Pérez de Azpeitia, Manuel   +4 more
core   +1 more source

A DC-DC Converter Based On Modified Flyback Converter Topology

open access: yesIEEE Latin America Transactions, 2016
Este trabajo fue financiado por Universidad de La Frontera, Temuco, Chile, bajo el proyecto DIUFRO17-0044. También se agradece el aporte financiero entregado por Fondecyt Chile bajo el contrato 1151325 y CONICYT/FONDAP/15110019 y al Ministerio de Economía Español por el contrato DPI2014- 53245 ...
Pesce, C   +4 more
openaire   +4 more sources

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