Results 61 to 70 of about 48,317 (290)
A novel soft-switched single-phase grid-connected current-source inverter
Cogent Engineering, 2017 This paper represents a novel soft-switched grid-connected current-source inverter topology and an efficient control strategy using switching flow graph theory.
M. Pakdel, S. Jalilzadeh
doaj +1 more source
IOP Conference Series: Materials Science and Engineering, 2017 A soft switched single switch isolated dc-dc conveys proposed in this paper. This converter works on the principle of zero current switching (zcs) and zero voltage switching (zvs). The circuit comprises lossless snubber with low rating. The switch works on zcs during turn on and zvs during turnoff.
K Subramanian +2 more
openaire +1 more source
Inflammatory Response‐Inspired Thermochromic Shield for Pneumatic Structures
Advanced Engineering Materials, EarlyView.A thermochromic shield for pneumatic structures is developed, using anhydrous sodium acetate powder and thermochromic pigment‐included solution. In this shield composed of three layers, the exothermic and thermochromic reactions, followed by the mixture of both components, occur promptly with an incident of penetrating damage as a sign of initial ...
Hyun Jae Lee, Ryuma Niiyama
wiley +1 more source
Soft switch-avalanche IGBT convertor
Electronics Letters, 1990 A full bridge dc-dc converter using a zero voltage and zero current switching technique is described. This circuit utilizes the characteristics of the IGBT to achieve power and frequency combinations that are much higher than those previously reported for this device.
K. Chen, T.A. Stuart
openaire +1 more source
A Fault-Tolerant T-Type Multilevel Inverter Topology with Soft-Switching Capability Based on Si and SiC Hybrid Phase Legs [PDF]
, 2016 The performance of a novel three-phase four-leg fault-tolerant T-Type inverter topology is presented in this paper, which significantly improves the inverter\u27s fault-tolerant capability regarding device switch faults.
Demerdash, Nabeel +4 more
core +1 more source
3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response
Advanced Engineering Materials, EarlyView.A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley +1 more source
Application of a Novel AＲCP Circuit in UPS
Journal of Harbin University of Science and Technology, 2017 In order to reduce the loss of the power switching device and improve the efficiency of the UP system，the AＲCP soft switching technology can be used.
MA Jun-jie +3 more
doaj +1 more source
Optimized power converters for electrically augmented on-orbit propulsion systems
, 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
A review on flicker-free ac-dc LED drivers for single-phase and three-phase ac power grids [PDF]
, 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
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source