Results 81 to 90 of about 441,169 (276)

Full-Bridge Active-Clamp Forward-Flyback Converter with an Integrated Transformer for High-Performance and Low Cost Low-Voltage DC Converter of Vehicle Applications

Energies, 2020
This paper presents a full-bridge active-clamp forward-flyback (FBACFF) converter with an integrated transformer sharing a single primary winding. Compared to the conventional active-clamp-forward (ACF) converter, the proposed converter has low voltage ...
Jaeil Baek, Han-Shin Youn
doaj   +1 more source

Fatty acid composition MRI of epicardial adipose tissue: Methods and detection of proinflammatory biomarkers in ST‐segment elevation myocardial infarction patients

Magnetic Resonance in Medicine, Volume 93, Issue 2, Page 519-535, February 2025.
Abstract Purpose To develop a method for quantifying the fatty acid composition (FAC) of human epicardial adipose tissue (EAT) using accelerated MRI and identify its potential for detecting proinflammatory biomarkers in patients with ST‐segment elevation myocardial infarction (STEMI). Methods A multi‐echo radial gradient‐echo sequence was developed for
John T. Echols, Shuo Wang, Amit R. Patel, Austin C. Hogwood, Antonio Abbate, Frederick H. Epstein   +5 more
wiley   +1 more source

DC-DC boost-flyback converter functioning as input stage for one phase low power grid-connected inverter

Archives of Electrical Engineering, 2014
The paper treats about main problems of one phase DC-AC microinverters that allow single solar cell to be joined with the grid. One of the issues is to achieve high voltage gain with high efficiency in DC circuit, which is necessary for proper operation ...
Kawa Adam, Penczek Adam, Piróg Stanisław   +2 more
doaj   +1 more source

Multiple Output Flyback Converter Design

Transactions on Electrical Engineering, 2019
DC-DC converters are mainly used to provide required output voltage by suitably controlling the pulse width modulated (PWM) signal given to the gate of the fast-acting power electronics switches. The flyback converter is one such popular isolated DC-DC converter topology used to obtain regulated output voltage in low power applications.
Richard Zelnik, Michal Prazenica
openaire   +2 more sources

Mapping the amplitude and phase of dissolved 129Xe red blood cell signal oscillations with keyhole spectroscopic lung imaging

Magnetic Resonance in Medicine, Volume 93, Issue 2, Page 584-596, February 2025.
Abstract Purpose To assess the regional amplitude and phase of dissolved 129Xe red blood cell (RBC) signal oscillations in the lung vasculature with keyhole spectroscopic imaging and to compare with previous methodology, which does not account for oscillation phase.
Jemima H. Pilgrim‐Morris, Guilhem J. Collier, Mika Takigawa, Scarlett Strickland, Roger Thompson, Graham Norquay, Neil J. Stewart, Jim M. Wild   +7 more
wiley   +1 more source

Synthesis of input-rectifierless AC-DC converters [PDF]

, 2001
This paper discusses the basic construction procedure and topological possibilities of creating ac/dc converters out of simple dc/dc conveners. It is shown that two separately controlled dc/dc conveners are sufficient for producing a regulated dc output ...
Lai, YM, Liu, JCP, Pong, MH, Poon, NK, Tse, CK   +4 more
core   +1 more source

Thermal Runaway Detection Method for Smart Electric Bicycle Charger

Engineering Reports, Volume 7, Issue 1, January 2025.
The research work introduces a novel thermal runaway detection method by using a newly developed algorithm embedded in the electric bicycle charging system. First, the relationship between the internal temperature of the battery and the phase shift of the battery impedance is derived theoretically, so that the internal parameters can be represented by ...
Jing Ning, Bing Xiao, Wenbin Zhao
wiley   +1 more source

Small-signal transmittances of the non-ideal flyback switch-mode DC–DC converter [PDF]

Archives of Electrical Engineering
Small-signal transmittances of the power stage of a flyback converter in continuous conduction mode are derived on the averaged model obtained by the separation of variables approach.
Maciej Bączek, Włodzimierz Janke, Jarosław Kraśniewski   +2 more
doaj   +1 more source

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

, 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., Flores Oropeza, Luis Alejandro, García Suárez, Oscar, Román Loera, Alejandro   +3 more
core   +1 more source

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

Magnetic 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, Helen Abeln, Melanie Müller, Vanessa L. Franke, Gino Rincon, Christin Glowa, Michaela Schmitt, Renate Bangert, Dominik Ludwig, Andreas B. Schmidt, Tristan A. Kuder, Mark E. Ladd, Peter Bachert, Philipp Biegger, Andreas Korzowski   +14 more
wiley   +1 more source