Results 141 to 150 of about 194,297 (358)

Estimation on the switching losses at IGBT bridges power converter [PDF]

open access: yes, 2011
. In the paper estimation on the switching losses at IGBT bridge converter with the output serial resonant load is given. The converter works on frequency higher than resonant frequency and supports the work of IGBT transistors in the bridge with zero ...
Cundev, Dobri   +2 more
core  

Local Thermal Conductivity Patterning in Rotating Lattice Crystals of Anisotropic Sb2S3

open access: yesAdvanced Functional Materials, EarlyView.
Microscale control of thermal conductivity in Sb2S3 is demonstrated via laser‐induced rotating lattice crystals. Thermal conductivity imaging reveals marked thermal transport anisotropy, with the c axis featuring amorphous‐like transport, whereas in‐plane directions (a, b) exhibit 3.5x and 1.7x larger thermal conductivity.
Eleonora Isotta   +13 more
wiley   +1 more source

A Non-Isolated High Gain Step-Up DC/DC Converter Based on Coupled Inductor with Reduced Voltage Stresses

open access: yesJournal of Low Power Electronics and Applications
Hybrid electric vehicles (HEVs) have gained significant attention for their superior energy efficiency and are becoming a predominant mode of urban transportation.
Yuqing Yang   +3 more
doaj   +1 more source

Advanced electrical power, distribution and control for the Space Transportation System [PDF]

open access: yes
High frequency power distribution and management is a technology ready state of development. As such, a system employs the fewest power conversion steps, and employs zero current switching for those steps.
Brandhorst, Henry W., Jr.   +1 more
core   +1 more source

Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation

open access: yesAdvanced Functional Materials, EarlyView.
In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu   +12 more
wiley   +1 more source

Thickness‐Dependent Skyrmion Evolution in Fe3GeTe2 During Magnetization Reversal

open access: yesAdvanced Functional Materials, EarlyView.
Thickness‐ and field‐dependent magnetic domain behavior in 2D van der Waals Fe3GeTe2 is studied using Lorentz TEM and micromagnetic simulations. A patch‐like domain phase evolves from skyrmions during magnetization reversal, and step edges between thickness regions act as pinning sites.
Jennifer Garland   +9 more
wiley   +1 more source

Wide-Range Input-Isolated DC–DC Ultrahigh-Step-Down Converter Containing Buck and Half-Bridge Topologies for Low-Power Applications

open access: yesIEEE Open Journal of Power Electronics
This paper proposes an ultrahigh-step-down converter with a high voltage conversion ratio. The primary side of the proposed converter contains a half-bridge converter with a conventional buck converter.
Yu-En Wu, Che-Ming Chang
doaj   +1 more source

Home - About - Disclaimer - Privacy