Results 221 to 230 of about 1,438,926 (267)

Small signal modeling of the MOSOS capacitor

IEEE SOS/SOI Technology Conference, 2003
Summary form only given. The high-frequency small-signal sinusoidal steady-state response of the 2-terminal MOSOS (metal-oxide-silicon-oxide-silicon) capacitor is solved numerically using perturbation analysis of the basic semiconductor equations. The model includes the effects of a floating semiconductor region, interface traps and nonuniform doping ...
M. Gaitan, P. Roitman
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Small signal modeling of wind farms

2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017
In large power electronic systems like a wind farm, the mutual interactions between the control systems of the power converters can lead to various stability and power quality problems. In order to predict the system dynamic behavior, this paper presents an approach to model a wind farm as a Multi-Input Multi-Output (MIMO) dynamic system, where the ...
Esmaeil Ebrahimzadeh, Frede Blaabjerg, Xiongfei Wang, Claus Leth Bak, Torsten Lund, Gert K. Andersen, Carlos Gomez Suarez, Jens-Jacob Berg   +7 more
openaire   +1 more source

Small-Signal Modeling for Phase-Shift Controlled Resonant Converters

IEEE Transactions on Industrial Electronics, 2021
The extended describing function (EDF) method is widely used in modeling the resonant converters. This article finds that the model of the phase-shift controlled resonant converter deduced by this method might be inaccurate especially when the duty-cycle is close to 1. The reason behind it is investigated, showing that derivation of the inverter bridge
Xin Li 0105, Yiming Zhang 0005, Shuxin Chen, Yi Tang 0005, Xin Zhang 0034   +4 more
openaire   +3 more sources

Small-signal nonlinear modeling of television IOTs

IEEE Transactions on Broadcasting, 2002
The inductive output tube (IOT) is a high power vacuum tube amplifier popularly used in UHF television broadcasting. A small-signal nonlinear model is presented for the IOT. Several simplifying assumptions are made to make the proposed model more tractable mathematically. Component values are then assigned to this simplified model based on measured IOT
openaire   +1 more source

Small-signal modeling of graphene barristors

Physica E: Low-dimensional Systems and Nanostructures, 2015
Abstract This paper presents a small-signal model for graphene barristor, a promising device for the future nanoelectronics industry. Because of the functional similarities to the conventional FET transistors, the same configuration and parameters, as those of FETs, are assumed for the model.
Ahmad Khayatian, Saeed Mohammadi, Parviz Keshavarzi   +2 more
openaire   +1 more source

Small-signal modeling of HVDC systems

2020
In this chapter, how the current control loop and the outer loops that feed to it can be analyzed via small-signal modeling was shown. Thereby, an input-admittance matrix is formed, which characterizes the behavior of the VSC-HVDC terminal as seen from the PCC. This matrix is operating-point dependent. By modeling the grid impedance as a matrix as well,
Lennart Harnefors, null Lidong Zhang, Alan Wood   +2 more
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Small-signal modeling of the interleaved boost with voltage multiplier

2012 IEEE Energy Conversion Congress and Exposition (ECCE), 2012
High step-up ratio DC-DC converters for low-voltage high-current energy sources are nowadays the focus of an intensive research activity, thanks to the increasing interest for renewable energy sources like those based on photovoltaic panels and fuel-cells.
SPIAZZI, GIORGIO, BUSO, SIMONE, SICHIROLLO, FRANCESCO, CORRADINI, LUCA   +3 more
openaire   +1 more source

Graphical small-signal modeling based on the inductor waveform

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
A graphical small-signal modeling based on the inductor waveform is presented in this paper. Small-signal perturbation is superimposed on the large-signal inductor waveform under steady-state condition and then the output voltage variation from small-signal perturbation is calculated by equivalent circuit.
Shin-Young Cho, Il-Oun Lee, Gun-Woo Moon
openaire   +1 more source

Small signal modeling of illuminated MOSFET for RF application

Proceedings of the International Conference & Workshop on Emerging Trends in Technology, 2011
Recent development in the device technology has led to the potential research in the area of optical characterization of FET devices. It is mainly because of the high gain, speed, power handling capacity and high packing density of IC viz. OEIC, MMIC, VLSI, etc.
B. K. Mishra 0001, Gayatri Phade, Prerana Jain   +2 more
openaire   +1 more source

Small Signal Model Averaging of Bi-Directional Converter

2018 IEEE International Conference on Electro/Information Technology (EIT), 2018
We consider the problem of modeling a bi-directional AC/DC converter using a small signal approach coupled with cycle averaging to simplify the model for use in digitized control. Small power sources (≤ 1000W) tend to have more abrupt transient power flow due to the associated characteristic low inertia. This is prevalent in small wind turbine systems.
BoHyun Ahn, Vincent Winstead
openaire   +1 more source