Results 1 to 10 of about 169,085 (298)

Transient response improvement of half‐bridge LLC resonant converter with full‐bridge rectifier for DC microgrid

IET Renewable Power Generation, 2023
LLC resonant converter has the features of low noise, high efficiency and power density, which is suitable to be integrated into DC microgrid. Due to severe stresses in the resonant tank, achieving fast and safe transient performance has been challenging
Lan Ma, Xiaoqi Cao, Rui Fu, Tao Zhou, Zeliang Shu   +4 more
doaj   +1 more source

A modified efficiency‐oriented optimal method for three‐phase interleaved LLC resonant converter in plug‐in hybrid electric vehicle battery chargers

IET Electric Power Applications, 2021
Three‐phase interleaved LLC resonant converters are preferably employed to realize high efficiency and high power density in the application of On‐board Charger.
Chaochao Shen, Hao Zhong, Yang Zhang, Mai Xu, Yining Zhang   +4 more
doaj   +1 more source

Generation and subwavelength focusing of longitudinal magnetic fields in a metallized fiber tip [PDF]

, 2014
We demonstrate experimentally and numerically that in fiber tips as they are used in NSOMs azimuthally polarized electrical fields (|E$_{\text{azi}}$|$^2$/|E$_{\text{tot}}$|$^2$ $\approx$ 55% $\pm $ 5% for 1.4\mu m tip aperture diameter and \lambda$_0$ =
Banzer, Peter, Kriesch, Arian, Peschel, Ulf, Pfeifer, Hannes, Ploss, Daniel   +4 more
core   +3 more sources

PWM ZCS DC Motor Drive and DC Power Supply

, 2011
Following the extension and increase in capacity of power electronic elements, many convertors with special applications have been designed. Convertors such as rectifiers, AC and DC power supplies, AC and DC drivers and so on. At present, optimization of
Bardia Montazeri
semanticscholar   +1 more source

Surface acoustic waves for acousto-optic modulation in buried silicon nitride waveguides [PDF]

, 2019
We theoretically investigate the use of Rayleigh surface acoustic waves (SAWs) for refractive index modulation in optical waveguides consisting of amorphous dielectrics.
Boller, Klaus-J., Porcel, Marco A. G., van der Slot, Peter J. M.   +2 more
core   +3 more sources

Analysis and design of synchronous‐rectified LLC DC–DC converter for LDC of electric vehicles

IET Power Electronics
In electric vehicles (EVs), the low voltage dc‐dc converter (LDC) with synchronous rectifier switches (SRs) can be used to reduce conduction loss caused by the high load current and improve the efficiency.
Xiang Zhou, Shuting Feng, Chaojie Li, Zhengchao Yan   +3 more
doaj   +1 more source

Resonantly enhanced second-harmonic generation using III-V semiconductor all-dielectric metasurfaces

, 2016
Nonlinear optical phenomena in nanostructured materials have been challenging our perceptions of nonlinear optical processes that have been explored since the invention of lasers. For example, the ability to control optical field confinement, enhancement,
Brener, Igal, Keeler, Gordon A., Liu, Sheng, Peake, Gregory M., Pertsch, Thomas, Reno, John, Saravi, Sina, Setzpfandt, Frank, Sinclair, Michael B., Staude, Isabelle, Yang, Yuanmu   +10 more
core   +2 more sources

A reduced‐switch‐count two‐phase interleaved switch‐control‐capacitor LLC converter with accurate current balancing

IET Power Electronics
In this paper, a reduced‐switch‐count two‐phase interleaved LLC converter with precise current balancing is proposed by using switching‐control‐capacitor (SCC) technology.
Xiang Zhou, Xiang Yu, Chaojie Li, Shuting Feng, Hongbo Zhao, Zhengchao Yan   +5 more
doaj   +1 more source

10Gbit/s bias-free and error-free all-optical NRZ-OOK to RZ-OOK format conversion using a III-V-on-silicon microdisk resonator [PDF]

, 2012
C
Fedeli, Jean-Marc, Kumar, Rajesh, Mechet, Pauline, Morthier, Geert, Olivier, Nicolas, Regreny, Philippe, Roelkens, Günther, Spuesens, Thijs, Van Thourhout, Dries   +8 more
core   +1 more source

An adaptive synchronous rectifier driving strategy for unregulated LLC resonant converter

IET Power Electronics
LLC resonant converters are widely adopted in many different industrial applications due to their high efficiency operation. To further improve LLC resonant converters' efficiency, the secondary unregulated diode rectifier is replaced by the synchronous ...
Yuqi Wei, Ziang Li, Jinjun Liu
doaj   +1 more source