Results 111 to 120 of about 423 (305)
The Journal of Engineering, 2019 The new era of power semiconductor devices is exploiting the high potential of wide bandgap device-based high-frequency power converters. The advanced capabilities of Silicon carbide (SiC) semiconductors allow the power converters to switch at higher ...
Blessy John +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
The Journal of Engineering, 2019 This study proposes an implementation based on a low-cost field-programmable gate array (FPGA) of a high-resolution pulse width modulation applied on a single-phase power factor correction (PFC) converter operating with 2 MHz switch frequency.
José Augusto Arbugeri +2 more
doaj +1 more source
Reconfigurable nonlinear photonic activation function for photonic neural network based on non-volatile opto-resistive RAM switch. [PDF]
Light Sci Appl, 2022 Xu Z +7 more
europepmc +1 more source
Switch-Mode Power Suplies for Electronic Circuits
, 2009 This bachelor’s thesis deals problems with Switching Power supplies and their comparison with classical power supplies. In this project, functions of basic kinds of convertors for Switchmode supplies and their characteristics, are explained.
Hantl, Josef
core
Modeling and Controlling Strategy of Four-Switch Buck-boost Convertor with Smooth Mode Transitions
The Open Electrical & Electronic Engineering Journal, 2017 Four-switch synchronous buck-boost (FSBB) converter is much suitable for battery management system for its characteristic of wide input voltage range, high efficiency, and positive voltage output. A three mode control scheme with two modulation signals and one carrier can be adopted to achieve the smooth transition among modes.
Wei-zhong Zhang +3 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source
The Journal of Engineering, 2019 This study presents a switch-mode assisted linear amplifier (SMALA) designed for use as a frequency-domain spectroscopy (FDS) excitation voltage source for the diagnostic testing of oil/paper insulation systems in large power transformers.
Shawn D. Nielsen +2 more
doaj +1 more source
Microprocessor controlled regulated power line switching mode power supply 0-50V/10A
, 2012 Tato práce popisuje návrh procesorem řízeného síťového spínaného regulovatelného napěťového zdroje. Řídící jednotka je od firmy Texas Instruments. Zdroj lze regulovat od 0 do 50 voltů a jeho proudová zatížitelnost je 10 ampér.
Špán, Václav
core
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source