Results 111 to 120 of about 9,135,400 (294)

Comparison of Zero Voltage Switching Phase-Shifted PWM Full Bridge DC-DC Converter Topologies

, 2015
In this paper, phase-shifted pulse width modulation full bridge topologies which are capable of switching at zero voltage are evaluated. Eight examples of these topologies have been studied in detail and compared in different aspects.
Aydemir, M. Timur, Aksoy, Huseyin
core  

Influence of Particle Shape and Size in Copper‐Based Low‐Temperature Metallization Paste for Solar Cells

Advanced Engineering Materials, EarlyView.
Particle morphology controls the balance between printability and electrical connectivity in low‐temperature AgCu/Ag metallization pastes. Flake‐shaped AgCu particles form extended low‐resistance contacts, whereas spherical particles favor processability at high metal loading. Fine Ag particles further tune void filling and conductive‐network formation
O. Mhirsi, M. N. Wengenmeyr, J. Bartsch, B. E. Rapp   +3 more
wiley   +1 more source

A Phase-Shifted Full-Bridge converter design methodology for space applications [PDF]

The design and validation of power converters for use in spacecraft is challenging from a reliability and component supply chain perspective. Point-of-load converters are required to supply power-hungry processors, sometimes at high stepdown ratios, all ...
Markoff, Samuel
core   +1 more source

Adjusting Nucleation Chemistry for the Atomic Layer Deposition of Antimony Selenide on Metal Oxide Surfaces

Advanced Engineering Materials, EarlyView.
The ALD precursor bis(trimethylsilyl)selenide is simultaneously a substrate surface inhibitor. It allows for the growth of Sb2Se3 in combination with tris(dimethylamido)antimony, but also silylates surface hydroxyl groups on the substrate if such hydroxyls are present.
Pei‐Chun Liao, Klaus Götz, Johannes Will, Mingjan Wu, Martin Dierner, Patrick Duchstein, Dirk Zahn, Tobias Unruh, Erdmann Spiecker, Julien Bachmann   +9 more
wiley   +1 more source

Gate driving method for synchronous rectifiers in phase-shifted full-bridge converter

, 2015
In high output current applications such as server power system, a phase-shifted full-bridge (PSFB) converter uses parallel connected power MOSFETs in synchronous rectifiers to reduce secondary conduction loss. However, it causes large gate driving loss.
Youn, Han-Shin, Moon, Gun-Woo, Jae-Bum Lee, Baek, Jae-Il, Kim, Chong-Eun, Lee, Jae-Bum, Jae-Il Baek, Gun-Woo Moon, Han-Shin Youn, Chong-Eun Kim   +9 more
core   +1 more source

Development of a Cold Wall Reactor System for the Low‐Pressure Chemical Vapor Deposition of BN on SiC Fiber Tow

Advanced Engineering Materials, EarlyView.
A cold wall reactor is developed to coat a SiC fiber tow with BN by low pressure chemical vapor deposition. The precursor gas is triethylamine borane mixed with ammonia. The heating process induces a temperature gradient, with the temperature decreasing from the core to the surface of the multifilament tow.
Pierre Fenetaud, Sylvain Jacques
wiley   +1 more source

Hybrid DC–DC Converter With Novel Clamp Circuit in Wide Range of High Output Voltage

IEEE Access
In this paper, a hybrid converter with a novel clamp circuit is introduced. This hybrid converter integrates a phase-shifted full-bridge (PSFB) converter with a half-bridge (HB) LLC converter. On the primary side, the lagging leg of the PSFB converter is
Hyeon-Woo Jeong, Cheon-Yong Lim
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

Charge-Based Soft-Switching Analysis and Joint Selection of Commutating Inductance and Dead Time in Phase-Shifted Full-Bridge Converters

Energies
Zero-voltage switching (ZVS) of the lagging leg in phase-shifted full-bridge (PSFB) converters is usually assessed using an energy criterion that assumes voltage-independent capacitance.
Tsvetana Grigorova, Ivan Maradzhiev, Angel Lichev   +2 more
doaj   +1 more source

A Phase Shifted Full Bridge Converter Design for Electrical Vehicle

, 2016
In this study, high efficiency design procedure of a phase shifted full bridge (PSFB) converter is presented for on-board electrical vehicle (EV) battery charger. Presented design methodology used lithium-ion battery cells because of their high voltage and current rates compared to a lead-acid battery cells.
Cetin, S, Astepe, A
openaire   +2 more sources