Results 61 to 70 of about 532,709 (209)

Switching current noise and relaxation of ferroelectric domains

, 2002
We simulate field-induced nucleation and switching of domains in a three-dimensional model of ferroelectrics with quenched disorder and varying domain sizes.
Tadic, Bosiljka
core   +1 more source

Fully Soft Switched Coupled Inductor-Based Semi Dual Active Half Bridge Converter with Voltage Match Control

Energies
This article proposes a fully soft-switched coupled-inductor-based semi dual-active half-bridge (SDAHB) converter designed for wide voltage range and low power applications.
Liting Li, Mei Su, Wenjing Xiong, Yu Han, Guo Xu   +4 more
doaj   +1 more source

A classical statistical model for distributions of escape events in swept-bias Josephson junctions

, 2012
We have developed a model for experiments in which the bias current applied to a Josephson junction is slowly increased from zero until the junction switches from its superconducting zero-voltage state, and the bias value at which this occurs is recorded.
A. J. Leggett, James A. Blackburn, Matteo Cirillo, N. Grønbech-Jensen, Niels Grønbech-Jensen, T. van Duzer   +5 more
core   +1 more source

An Isolated Active-Clamped Circuit Current-Fed Half-Bridge Converter

Eletrônica de Potência
This paper presents an isolated regenerative active-clamped circuit designed for the current-fed half-bridge (IRACCFHB) converter. Its primary function is to reduce high voltage spikes across the main switches caused by energy stored in the leakage ...
Glauco E. R da Silva, Carlos M. de O. Stein , Jean P. da Costa , Emerson G. Carati, Rafael Cardoso, Gustavo W. Denardin, Jhon B. B. Quispe   +6 more
doaj   +1 more source

IGBT Dynamic Loss Reduction through Device Level Soft Switching

Energies, 2018
Due to its low conduction loss, hence high current ratings, as well as low cost, Silicon Insulated Gate Bipolar Transistor (Si IGBT) is widely used in high power applications.
Lan Ma, Hongbing Xu, Alex Q. Huang, Jianxiao Zou, Kai Li   +4 more
doaj   +1 more source

Study of switching transients in high frequency converters [PDF]

As the semiconductor technologies progress rapidly, the power densities and switching frequencies of many power devices are improved. With the existing technology, high frequency power systems become possible. Use of such a system is advantageous in many
Elbuluk, Malik E., Lee, Tony, Zinger, Donald S.   +2 more
core   +1 more source

Zero Field precession and hysteretic threshold currents in spin torque oscillators with tilted polarizer

, 2008
Using non-linear system theory and numerical simulations we map out the static and dynamic phase diagram in zero applied field of a spin torque oscillator with a tilted polarizer (TP-STO).We find that for sufficiently large currents, even very small tilt
C L Zha, Fang Y Y Zha C L Akerman J, Hubbard J H, Johan Åkerman, Khalil H K, Lu B Weller D, Perko L, S Bonetti, Yan Zhou, Zhou Y Akerman J   +9 more
core   +1 more source

Intermittent control models of human standing: similarities and differences [PDF]

, 2014
Two architectures of intermittent control are compared and contrasted in the context of the single inverted pendulum model often used for describing standing in humans.
A Bottaro, A Bottaro, AD Kuo, AD Kuo, AV Alexandrov, B Brembs, C Kamp van de, CD Marsden, CS Sherrington, D Kleinman, D McRuer, DL Kleinman, E Ronco, E Todorov, F Navas, G Balazsi, G Stepan, GC Goodwin, H Kooij Van Der, H Kooij Van Der, H Kwakernaak, Henrik Gollee, I Giulio Di, Ian Loram, ID Loram, ID Loram, ID Loram, ID Loram, ID Loram, IJ Pinter, J Pruszynski, JC Rothwell, KJ Craik, KJ Craik, LA Montestruque, M Günther, M Günther, M Günther, M Lakie, M Wolpert Daniel, Martin Lakie, N Bhushan, OJM Smith, P Cisek, P Gawthrop, P Gawthrop, P Kowalczyk, P Redgrave, PD Neilson, PE Dux, Peter Gawthrop, PJ Gawthrop, PJ Gawthrop, PJ Gawthrop, PJ Gawthrop, R Fitzpatrick, R Lozano, R Pintelon, RC Miall, RC Miall, RJ Peterka, S Baron, S Hanneton, SA Safavynia, T Insperger, V Zhivoglyadov Peter, VB Brooks, Y Asai, Y Suzuki   +68 more
core   +4 more sources

Sneaking Operation Modes in Zero-Current-Switching Converter

The Open Electrical & Electronic Engineering Journal, 2015
This paper reports the occurrence of some abnormal operational modes in soft-switching converters. By constructing a Boolean matrix based on the states of the switching components, some unexpected topological states are identified. Consequently, these states excite the abnormal or sneaking operational modes as referred.
Qu Lili, Zhang Bo, Wallace K.S. Tang
openaire   +1 more source

Molecular spintronics using noncollinear magnetic molecules

, 2009
We investigate the spin transport through strongly anisotropic noncollinear magnetic molecules and find that the noncollinear magnetization acts as a spin-switching device for the current.
Chibotaru, Liviu F., Soncini, Alessandro
core   +1 more source