Results 61 to 70 of about 64,210 (348)

Semiconductor optical digital-to-analogue converter

open access: yesElectronics Letters, 2005
A semiconductor-integrated optical digital-to-analogue converter, consisting of input and output multimode interference couplers, and one-bit delay line, has been realised for the first time. Small bending curvature owing to the large refractive index difference results in the small size with the delay line of about 1 cm length for 10 Gbit/s optical ...
H. Uenohara, R. Kurosawa
openaire   +1 more source

Optimized power converters for electrically augmented on-orbit propulsion systems

open access: yes, 2002
Advances in satellite thruster technology have produced the requirement for high power electrical supplies to operate electrically augmented on-orbit propulsion systems.
Olyniec, Lee Michael
core   +1 more source

Analogue to Digital and Digital to Analogue Converters (ADCs and DACs): A Review Update [PDF]

open access: yes, 2016
This is a review paper updated from that presented for CAS 2004. Essentially, since then, commercial components have continued to extend their performance boundaries but the basic building blocks and the techniques for choosing the best device and ...
Pickering, J.
core   +3 more sources

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

A New Structure of High Voltage Gain SEPIC Converter for Renewable Energy Applications

open access: yesIEEE Access, 2019
The paper proposes a new structure of SEPIC with high voltage gain for renewable energy applications. The proposed circuit is designed by amalgamating the conventional SEPIC with a boosting module.
Pandav Kiran Maroti   +5 more
doaj   +1 more source

Analysis of processes in the converter with twelve-zone voltage regulation and electromechanical load

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ, 2020
The article focuses on electromagnetic processes in the electric circuits with semiconductor switches. The mathematical model of the converter with twelve-zone regulation of output voltage has been developed to analyse electromagnetic processes in ...
V. Mykhailenko   +2 more
doaj   +1 more source

Switched Inductor Double Switch High Gain DC-DC Converter for Renewable Applications

open access: yesIEEE Access, 2021
High voltage gain DC-DC converter is a prime requirement for renewable applications, in particular for PV. Though numerous DC-DC converter is available for increasing the voltage gain, the passive elements requirement is higher which reduces the ...
Danyang Bao   +5 more
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Interleaved step-up soft-switching DC–DC Boost converter without auxiliary switches

open access: yesEnergy Reports, 2022
A voltage gain interleaved soft switched DC–DC Boost converter without auxiliary switch is proposed in this paper. Step-up characteristics are achieved without using any transformer, coupled inductor, voltage multiplier cell, switched inductor/switched ...
M. Rezvanyvardom   +6 more
doaj   +1 more source

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