Results 1 to 10 of about 820,288 (203)

Auxiliary Inverter with Zero-current Soft Switching DC/DC Converter Input

机车电传动, 2014
An auxiliary inverter with zero-current soft switching DC/DC converter input was proposed. Two-stage transformer circuit structure was adopted, the front part of which was DC/DC converter, and the rear part of which was three-phase inverter circuit. Zero-
GAO Yongjun, ZHANG Ruifeng
doaj  

Optimization Design Method for IGCT Gate Pole Drive Based on Improved Grey Wolf Algorithm

Energies
Integrated Gate-Commutated Thyristor (IGCT) serves as the core power electronic device in high-voltage and high-power renewable energy conversion systems.
Ruihuang Liu, Qi Zhou, Shi Chen, Pai Peng, Xuefeng Ge, Liangzi Li   +5 more
doaj   +1 more source

Monolithic Arrays of Grating-Surface-Emitting Diode Lasers and Quantum Well Modulators for Optical Communications [PDF]

The electro-optic switching properties of injection-coupled coherent 2-D grating-surface-emitting laser arrays with multiple gain sections and quantum well active layers are discussed and demonstrated.
Carlson, N. W., Evans, G. A., Kaiser, C. J., Liew, S. K.   +3 more
core   +1 more source

Breathers in PT-symmetric optical couplers

, 2012
We show that the parity-time (PT) symmetric coupled optical waveguides with gain and loss support localised oscillatory structures similar to the breathers of the classical $\phi^4$ model.
Barashenkov, I. V., Dmitriev, Sergey V., Kivshar, Yuri S., Suchkov, Sergey V., Sukhorukov, Andrey A.   +4 more
core   +1 more source

A microfluidic 2×2 optical switch [PDF]

, 2004
A 2×2 microfluidic-based optical switch is proposed and demonstrated. The switch is made of an optically clear silicon elastomer, Polydimethylsiloxane (PDMS), using soft lithography.
Campbell, Kyle, Fainman, Yeshaiahu, Groisman, Alex, Levy, Uriel, Mookherjea, Shayan, Pang, Lin, Psaltis, Demetri   +6 more
core  

DESIGN AND IMPLEMENTATION OF HYBRID SPWM CONTROL FOR CASCADED H-BRIDGE MULTI LEVEL INVERTER FOR MOTOR DRIVES

Electrica, 2014
In this paper, present the performance of hybrid modulation technique for soft switched cascaded five level inverters. The proposed modulation schemes are hybrid alternative phase opposition, hybrid phase shift carrier, hybrid single carrier sinusoidal ...
N. SUJITHA, S. SATISH KUMAR, M. SASIKUMAR   +2 more
doaj   +2 more sources

Low Switching Loss Built-In Diode of High-Voltage RC-IGBT with Shortened P+ Emitter. [PDF]

Micromachines (Basel), 2023
Wu W, Li Y, Yu M, Gao C, Shu Y, Chen Y.
europepmc   +1 more source

Fast polarization insensitive optical shutters using dual frequency liquid crystals [PDF]

, 2014
Most of the existing displays and optical shutters based on liquid crystals work in combination with linear polarizers. This implies that often more than half of the light is lost due to optical loss in the polarizers and/or the fact that the incoming ...
Beeckman, Jeroen, Chojnowska, Olga, Dabrowski, Roman, Kim, JDK, Mangelinckx, Glenn, Neyts, Kristiaan, Shin, J   +6 more
core  

Bistability loss as key feature in azobenzene (non-)switching on metal surfaces

, 2012
Coinage metal adsorbed azobenzene is investigated as prototypical molecular switch. It is shown that switching capabilities are not just lost due to excited state quenching, but already due to changes in the ground state energetics.
Maurer, Reinhard J., Reuter, Karsten
core   +1 more source

SiC Heterojunction Trench MOSFET with a Buried P-Type Pillar for the Low Gate-Drain Charge and Switching Loss. [PDF]

Micromachines (Basel), 2022
Ran S, Huang Z, Hu S, Yang H.
europepmc   +1 more source