Results 71 to 80 of about 15,259 (192)

State-space average modelling of converters with parasitics and storage-time modulation [PDF]

open access: yes, 1980
The State-Space Averaging approach to modelling switching converter power stages is used to extend the analytical descriptions of the buck, boost, buck-boost, and Cuk converters to included the effects of all parasitic resistances and transistor storage ...
Chetty, P. R. K.   +2 more
core   +1 more source

Bridging Green Chemistry and Circular Economy: A Pathway to Sustainable Polyester Plastics Through Feedstock, Synthesis, and Waste Upcycling

open access: yesAdvanced Science, EarlyView.
This review summarizes green and low‐carbon strategies throughout the entire life cycle of polyester plastics, including sustainable monomer synthesis, optimization polymerization, efficient recycling, and advanced upcycling technologies. The synergistic implementation of these strategies is expected to significantly promote the development of a ...
Jinzhou Li   +5 more
wiley   +1 more source

Realization of a Photovoltaic Fed Sparse Alternating Current (AC)-Link Inverter

open access: yesThe Journal of Engineering Research, 2016
In this paper, a soft-switched alternating current (AC)-link buck-boost inverter with a reduced number of switches, referred to as a sparse AC-link buck-boost inverter, was designed and implemented for a photovoltaic (PV) interface. Important features of
R. Ramaprabha   +3 more
doaj   +1 more source

RANCANG BANGUN CATU DAYA TENAGA SURYA UNTUK PERANGKAT AUDIO MOBIL (SUBJUDUL: SOFTWARE) [PDF]

open access: yes, 2011
Selama ini catu daya audio mobil diperoleh dari batere (accu) pada mobil. Akibat kelebihan beban, batere mobil menjadi drop dan sulit untuk menghidupkan mesin mobil.
mariana, zuan
core  

In‐Wheel Piezoelectric DC Power Generator With Zero Resistive Torque

open access: yesAdvanced Science, EarlyView.
In this paper, we present a wheel‐shaped direct‐current piezoelectric generator (DC‐PG) that fundamentally overcomes these constraints by producing phase‐stable DC electricity directly from rolling motion. By embedding this system into suitcase wheels, we demonstrated a fully integrated real‐time location tracking system powered solely by mechanical ...
Hyun Soo Kim   +19 more
wiley   +1 more source

Stability analysis for an ad-hoc model predictive control in DC/DC converters with a constant power load

open access: yesResults in Engineering
This paper presents a stability analysis for a horizon-one continuous control set model predictive control (MPC) for DC/DC converters connected to a constant power loads (CPLs).
Alejandro Garcés-Ruiz   +2 more
doaj   +1 more source

A review on flicker-free ac-dc LED drivers for single-phase and three-phase ac power grids [PDF]

open access: yes, 2019
Light-Emitting Diodes (LEDs) are coming strongly into the lighting market due to their advantages over conventional lighting solutions: energy efficient, controllable in both light and color, long lifetime, lack of a warm-up period and high power density.
Arias Pérez de Azpeitia, Manuel   +5 more
core   +2 more sources

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

open access: yesAdvanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim   +5 more
wiley   +1 more source

A general unified approach to modelling switching DC-to-DC converters in discontinuous conduction mode [PDF]

open access: yes, 1977
A method for modelling switching converters in the discontinuous conucction mode is developed, whose starting point is the unified state-space representation, and whose end results is a complete linear circuit model which correctly represents all ...
Middlebrook, R. D., Ćuk, Slobodan
core   +1 more source

Analyzing individual rent price ratios in eastern German agricultural land markets: A GAMLSS approach

open access: yesAgribusiness, EarlyView.
Abstract This study explores the rent price ratio in agricultural land markets, crucial for evaluating market efficiency, policy needs, and farmer decision‐making. Traditionally, the analyses faced challenges due to the absence of concurrent sale and rent data for the same land, potentially leading to biased results.
Marius Michels   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy