The Experts below are selected from a list of 64341 Experts worldwide ranked by ideXlab platform
Marco Storace - One of the best experts on this subject based on the ideXlab platform.
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A Piecewise-Affine Inductance Model for Inductors Working in Nonlinear Region
2019 16th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2019Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a piecewise-affine (PWA) power-Ioss-dependent inductance behavioral model is proposed, for ferrite-core inductors used in switch-mode power supplies (SMPSs). The model expresses the inductance as a function of easily measurable quantities. The PWA formulation leads to a faster computation with respect to the arctangent models available in the literature and allows analytically computing the inductor current based on its voltage. The model is validated through experimental measurements on a buck converter, showing a reliable prediction of the steady-state inductor current, under different SMPS working conditions.
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SMACD - A Piecewise-Affine Inductance Model for Inductors Working in Nonlinear Region
2019 16th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2019Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a piecewise-affine (PWA) power-Ioss-dependent inductance behavioral model is proposed, for ferrite-core inductors used in switch-mode power supplies (SMPSs). The model expresses the inductance as a function of easily measurable quantities. The PWA formulation leads to a faster computation with respect to the arctangent models available in the literature and allows analytically computing the inductor current based on its voltage. The model is validated through experimental measurements on a buck converter, showing a reliable prediction of the steady-state inductor current, under different SMPS working conditions.
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Accurate Modeling of Inductors Working in Nonlinear Region in Switch-Mode Power Supplies with Different Load Currents
2018 15th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2018Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a Nonlinear model is proposed to characterize ferrite-core inductors operating in saturation Region in Switch-Mode Power Supplies (SMPSs). The model, identified through experimental measurements of inductor current and voltage, relates the inductance to the current flowing through the inductor and also to the SMPS load current. Results show that the model allows reproducing the inductor current with high accuracy, in different working conditions.
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SMACD - Accurate Modeling of Inductors Working in Nonlinear Region in Switch-Mode Power Supplies with Different Load Currents
2018 15th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2018Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a Nonlinear model is proposed to characterize ferrite-core inductors operating in saturation Region in Switch-Mode Power Supplies (SMPSs). The model, identified through experimental measurements of inductor current and voltage, relates the inductance to the current flowing through the inductor and also to the SMPS load current. Results show that the model allows reproducing the inductor current with high accuracy, in different working conditions.
Alberto Oliveri - One of the best experts on this subject based on the ideXlab platform.
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A Piecewise-Affine Inductance Model for Inductors Working in Nonlinear Region
2019 16th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2019Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a piecewise-affine (PWA) power-Ioss-dependent inductance behavioral model is proposed, for ferrite-core inductors used in switch-mode power supplies (SMPSs). The model expresses the inductance as a function of easily measurable quantities. The PWA formulation leads to a faster computation with respect to the arctangent models available in the literature and allows analytically computing the inductor current based on its voltage. The model is validated through experimental measurements on a buck converter, showing a reliable prediction of the steady-state inductor current, under different SMPS working conditions.
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SMACD - A Piecewise-Affine Inductance Model for Inductors Working in Nonlinear Region
2019 16th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2019Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a piecewise-affine (PWA) power-Ioss-dependent inductance behavioral model is proposed, for ferrite-core inductors used in switch-mode power supplies (SMPSs). The model expresses the inductance as a function of easily measurable quantities. The PWA formulation leads to a faster computation with respect to the arctangent models available in the literature and allows analytically computing the inductor current based on its voltage. The model is validated through experimental measurements on a buck converter, showing a reliable prediction of the steady-state inductor current, under different SMPS working conditions.
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Accurate Modeling of Inductors Working in Nonlinear Region in Switch-Mode Power Supplies with Different Load Currents
2018 15th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2018Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a Nonlinear model is proposed to characterize ferrite-core inductors operating in saturation Region in Switch-Mode Power Supplies (SMPSs). The model, identified through experimental measurements of inductor current and voltage, relates the inductance to the current flowing through the inductor and also to the SMPS load current. Results show that the model allows reproducing the inductor current with high accuracy, in different working conditions.
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SMACD - Accurate Modeling of Inductors Working in Nonlinear Region in Switch-Mode Power Supplies with Different Load Currents
2018 15th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2018Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a Nonlinear model is proposed to characterize ferrite-core inductors operating in saturation Region in Switch-Mode Power Supplies (SMPSs). The model, identified through experimental measurements of inductor current and voltage, relates the inductance to the current flowing through the inductor and also to the SMPS load current. Results show that the model allows reproducing the inductor current with high accuracy, in different working conditions.
Deborah L. Sivco - One of the best experts on this subject based on the ideXlab platform.
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Electronic anti-Stokes-Raman emission in quantum-cascade lasers
Applied Physics Letters, 2005Co-Authors: Alvaro Gomez-iglesias, D. Wasserman, Claire Gmachl, Alexey Belyanin, Deborah L. SivcoAbstract:In this letter, the observation of electronic anti-Stokes–Raman emission in quantum-cascade lasers is reported. We present two distinct active Region designs with enhanced anti-Stokes–Raman Nonlinearity. The pump laser is monolithically integrated with the Nonlinear Region in a two-stack active core within the same waveguide. Electronic Raman emission was observed in both designs. Additionally, for the design with positive detuning, an incoherent upconversion signal resulting from optical pumping is detected.
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Stimulated electronic anti-Stokes Raman emission in quantum cascade lasers
International Conference on Indium Phosphide and Related Materials 2005, 2005Co-Authors: Alvaro Gomez-iglesias, D. Wasserman, Claire Gmachl, Alexey Belyanin, Deborah L. SivcoAbstract:We report the first observation of stimulated electronic anti-Stokes Raman emission in quantum cascade lasers. The pump laser is monolithically integrated with the anti-Stokes Nonlinear Region in a 2-stack active waveguide core.
Matteo Lodi - One of the best experts on this subject based on the ideXlab platform.
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A Piecewise-Affine Inductance Model for Inductors Working in Nonlinear Region
2019 16th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2019Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a piecewise-affine (PWA) power-Ioss-dependent inductance behavioral model is proposed, for ferrite-core inductors used in switch-mode power supplies (SMPSs). The model expresses the inductance as a function of easily measurable quantities. The PWA formulation leads to a faster computation with respect to the arctangent models available in the literature and allows analytically computing the inductor current based on its voltage. The model is validated through experimental measurements on a buck converter, showing a reliable prediction of the steady-state inductor current, under different SMPS working conditions.
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SMACD - A Piecewise-Affine Inductance Model for Inductors Working in Nonlinear Region
2019 16th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2019Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a piecewise-affine (PWA) power-Ioss-dependent inductance behavioral model is proposed, for ferrite-core inductors used in switch-mode power supplies (SMPSs). The model expresses the inductance as a function of easily measurable quantities. The PWA formulation leads to a faster computation with respect to the arctangent models available in the literature and allows analytically computing the inductor current based on its voltage. The model is validated through experimental measurements on a buck converter, showing a reliable prediction of the steady-state inductor current, under different SMPS working conditions.
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Accurate Modeling of Inductors Working in Nonlinear Region in Switch-Mode Power Supplies with Different Load Currents
2018 15th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2018Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a Nonlinear model is proposed to characterize ferrite-core inductors operating in saturation Region in Switch-Mode Power Supplies (SMPSs). The model, identified through experimental measurements of inductor current and voltage, relates the inductance to the current flowing through the inductor and also to the SMPS load current. Results show that the model allows reproducing the inductor current with high accuracy, in different working conditions.
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SMACD - Accurate Modeling of Inductors Working in Nonlinear Region in Switch-Mode Power Supplies with Different Load Currents
2018 15th International Conference on Synthesis Modeling Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2018Co-Authors: Alberto Oliveri, Matteo Lodi, Marco StoraceAbstract:In this paper a Nonlinear model is proposed to characterize ferrite-core inductors operating in saturation Region in Switch-Mode Power Supplies (SMPSs). The model, identified through experimental measurements of inductor current and voltage, relates the inductance to the current flowing through the inductor and also to the SMPS load current. Results show that the model allows reproducing the inductor current with high accuracy, in different working conditions.
Benoît Pier - One of the best experts on this subject based on the ideXlab platform.
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Experimental characterization of transition Region in rotating-disk boundary layer
Physics of Fluids, 2013Co-Authors: Muhammad Ehtisham Siddiqui, Vasudevan Mukund, Julian Scott, Benoît PierAbstract:The three-dimensional boundary layer due to a disk rotating in otherwise still fluid is well known for its sudden transition from a laminar to a turbulent regime, the location of which closely coincides with the onset of local absolute instability. The present experimental investigation focuses on the Region around transition and analyses in detail the features that lead from the unperturbed boundary layer to a fully turbulent flow. Mean velocity profiles and high-resolution spectra are obtained by constant-temperature hot-wire anemometry. By carefully analysing these measurements, Regions in the flow are identified that correspond to linear, weakly Nonlinear or turbulent dynamics. The frequency that dominates the flow prior to transition is explained in terms of spatial growth rates, derived from the exact linear dispersion relation. In the weakly Nonlinear Region, up to six clearly identifiable harmonic peaks are found. High-resolution spectra reveal the existence of discrete frequency components that are deemed to correspond to fluctuations stationary with respect to the disk surface. These discrete components are only found in the weakly Nonlinear Region. By systematically acquiring low- and high-resolution spectra over a range of narrowly spaced radial and axial positions, it is shown that while the transition from laminar to turbulent regimes occurs sharply at some distance from the disk surface, a complex weakly Nonlinear Region of considerable radial extent continues to prevail close to the disk surface.
