Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 186 for “"circuit model"”.
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Quantum computation beyond the circuit model
The quantum circuit model is the most widely used model of quantum computation. It provides both a framework for formulating quantum algorithms and an architecture for the physical construction of quantum computers. However, several other models of quantum computation exist which provide useful …
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A nearly linear circuit model for the PIN diode.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1972. M.S.
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Equivalent Circuit Model of High Frequency PWM and Resonant Converters
… desire to develop simple and accurate equivalent circuit models to facilitate the design of these converters. Constant on-time current-mode control has been widely used in POL and VRM converters. For multi-phase application, external ramp is required to improve jittering performance using pulse …
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Equivalent Circuit Model for Current Mode Controls and Its Extensions
… for the difficulty in obtaining the small-signal model for current-mode control in the frequency domain. A continuous time domain model was recently proposed as a successful model for current-mode control architectures. However, the model was derived by describing function method, which is very …
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A circuit model BOSS simulation of nonlinear effects in long distance fiber optic systems
… optic communication systems. By designing a circuit that can model this effect and simulating it using the Block Oriented Systems Simulator (BOSS), we can study the pulse distortion and broadening that may occur. The nonlinearity considered here is self-phase modulation (SPM). A loop system …
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A Dynamic Magnetic Equivalent Circuit Model For Design And Control Of Wound Rotor Synchronous Machines
<p>Recently, a new magnetic equivalent circuit (MEC) model was developed to support automated multi-objective design of wound-rotor synchronous machines (WRSMs). In this research, the MEC model and its application have been enhanced. Initial enhancement has focused on using the MEC model to explore …
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A circuit model for diffusive breast imaging and a numerical algorithm for its inverse problem
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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A nonlinear statistical MESFET model using low order statistics of equivalent circuit model parameter sets
A nonlinear statistical MESFET model is presented which shows good agreement with measured results. A single stage GaAs power amplifier tuned at 13.5 GHz is simulated with the model and accurately predicts output power, input return loss, and power added efficiency. Not only is nominal performance …
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Circuit model extraction in digital and RD circuits using the partial element equivalent circuit (PEEC) method
… to power integrity and design, numerical modeling, and characterization and modeling of MEMS switches"--Abstract, page iv.
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Application of Exact Steady-State Equivalent Circuit Model to Zinc-Doped Silicon P/n Junctions Under Forward Bias
Made available in DSpace on 2014-12-12T20:54:52Z (GMT). No. of bitstreams: 1 7913406.pdf: 3108620 bytes, checksum: 7952fee23315f91512a15310d7188acd (MD5) Previous issue date: 1978
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Small Signal Equivalent Circuit Extraction From A Gallium Arsenide MESFET Device
… With these MESFET devices comes the need to model them. This thesis extracts a small signal equivalent circuit model from a Gallium Arsenide MESFET device. The approach taken in this thesis is to use measured S- parameters to extract a small signal equivalent circuit model by optimization. …
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Amygdala circuits underlying valence-specific behaviors
… engage evolutionarily predetermined neural circuits in the brain. The amygdala is an important mammalian brain region that is activated by negative and positive stimuli and mediates negative and positive valence-related behaviors. The current prevailing circuit model of the amygdala mainly …
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Design and optimization of dielectric resonator antenna arrays based on substrate integrated waveguide technology for millimeter-wave applications
… to the research community. Antennas and MMW circuits with compact size, low cost, high efficiency, and low loss are much needed to meet the new requirements of these applications. This research focuses on the design and optimization of dielectric resonator antenna (DRA) arrays based on …
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Ground Plane Slot Structures for Isolation of Cosited Microstrip Antennas
… have already been reported, no analytical model exists to describe their behavior and there are no design guidelines. In this work, the behavior of reported ground plane structures is used as a clue to obtain generalizable information about such structures' behavior. The structures' …
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Modeling and Control of Modular Multilevel Converter
… to intuitively comprehend. Recently, a method of modeling of the MMC based on state-plane analysis and coordinate transformation, is proposed in the literature. Based on the state-plane analysis, two kinds of circulating power in the MMC are identified that are orthogonal to each other. This means …
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Efficient Full-Wave Analysis and Modeling of Interconnects by FDTD and Signal Processing Techniques
An automatic extractor of the equivalent circuit model of high-speed circuits is given. The extractor is integrated with computer-aided-design (CAD) tools. The design files are parsed and design information is projected on the Yee-like mesh. The generated parallel FDTD codes are deployed in a …
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Model, Design, and Control for Power Conversion in Wave Energy Converter System
… the output dc battery or the ac grid. The models of the WEC system are usually oversimplified in a multi-physics study. A PTO model as an ideal actuator with 100 % efficiency will show a different frequency response than the real tested results and can make the controller design invalid. A …
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Part I: Improved handling of geometry details in finite difference time domain method; Part II: Method of circuit extraction using finite difference frequency domain matrix formulation with application to power bus modeling
… is illustrated by using a one-dimensional FDTD model. The full subgridding algorithm combining the two sub-algorithms is also implemented. The stability and accuracy of the subgridding method are tested numerically. The second part of the dissertation proposes a procedure to generate an …
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Induction machine stray loss from inter-bar currents
… extended per-phase induction machine equivalent circuit model in order to account for the impact of inter-bar currents. The average value of resistance between neighboring rotor bars significantly impacts calculations of rotor bar and inter-bar current and loss and has been determined for a …
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