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 25 for “"inductor design"”.
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Low-loss inductor design for high-frequency power applications
… for miniaturizing power electronics, but designing small, efficient inductors at HF can be challenging. At these frequencies, losses due to skin and proximity effects are difficult to reduce, and gaps needed to keep B fields low in the core add fringing field loss. This thesis aims to …
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High-Performance High-Power Inductor Design for High-Frequency Applications
… (HF, 3-30 MHz) range, coreless (or "air-core") inductors with a typical quality factor (Q) of 200-300 are conventionally used and are often the major contributor to the overall system’s loss and size. Even when they can achieve high Q, air-core inductors can induce electromagnetic interference …
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Physical modeling of wind turbine generators in a small scale analog system
… and a wind farm. The hardware work includes the design of a 2.5kW inverter and a L-C-L grid filter (including inductor design and construction). The goal of this research is to better emulate the operation principles of wind turbine system. Future work proposes developing a better control method …
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Design, implementation, and evaluation of high-efficiency high-power radio-frequency inductors
Radio-Frequency (RF) power inductors are critical to many application spaces such as communications, RF food processing, heating, and plasma generation for semiconductor processing. Inductors for high frequency and high power (e.g., tens of MHz and hundreds of watts and above) have traditionally …
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Multiphysics Design and Modeling for Advanced Packaging and Heterogeneous Integration of Power Delivery
… of this research is to solve the multiphysics design challenges in integrated power delivery for advanced electronic packaging and heterogeneous integration architectures. Embedded inductors, essential for efficient power delivery, must maintain high performance at elevated temperatures, …
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Uniform Field Distribution Using Distributed Magnetic Structure
… magnetic component is generally not at a designer's disposal. In a conventional toroidal inductor, the energy density is inversely proportional to the square of the radius. Thus, a designer would be unable to prescribe uniform field distribution to fully utilize the inductor volume for …
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Design of a high quality factor spiral inductors in RF MCM-D
This thesis studies the design and fabrication of spiral inductors for use in Radio Frequency (RF) applications. A design methodology is developed to search an inductor design space efficiently using existing simulation software. The methodology allows designers to specify a desired inductance, …
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Integration of Filter Elements in Electric Drives
… in higher-end home appliances. Traditional drive designs separate the power electronics and the electric machine, which reduces the potential for integration and the possibility of beneficial opportunities. Opportunities exist in electric drives for integration of filter elements. Integration can …
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Integrated EMI/Thermal Design for Switching Power Supplies
… by using the CAD tools. The methodology and design guidelines are developed. By using a boost PFC circuit as an example, an equivalent circuit model is built for EMI noise prediction and analysis. The parasitic elements of circuit layout and components are extracted analytically or by using …
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Implementation of a Fixed Timing Coupled Inductor Soft-Switching Inverter
… inverters have been conceived, simulated, designed, implemented and proven to have advantages over hard switched inverters. To date however, no soft-switching inverters have reached commercial production for various reasons. The fixed timing coupled inductor soft-switching inverter is of …
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Six-port wireless receiver architectures
… wireless receiver architecture is proposed, designed and characterised. This receiver can operate from 900 MHz to4 GHz and can give bit error rate as low as 8E-7 for input power levels of - 37 dBm without a low noise amplifier. In addition three robust novel methods for the calibration of the …
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Solar-based Single-stage High-efficiency Grid-connected Inverter
… etc. All these simulation results provide useful design tips for prototyping. In Chapter 3, a phase-shift controller is designed based on UCC3895. Also, a detailed design procedure is given, including key components selection, transformer and inductor design and driver circuits design. In Chapter …
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Constant-Flux Inductor with Enclosed-Winding Geometry for Improved Energy Density
The passive components such as inductors and capacitors are bulky parts on circuit boards. Researchers in academia, government, and industry have been searching for ways to improve the magnetic energy density and reduce the package size of magnetic parts. The "constant-flux" concept discussed …
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Harmonic Reduction IN a Single-Switch Three-Phase Boost Rectifier With Harmonic-Injected PWM
… requirement, the rectifier voltage gain can be designed down to 1.45; to meet the IEC 1000-3-2 (A) standard, the output power can be pushed up to 10 kW for the application with a 3X220 V input and a 800 V output. The results are verified on a 6-kW prototype. The injection principle is …
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Low-Profile Magnetic Integration for High-Frequency Point-of-Load Converter
… this solution, the passive components such as inductors and capacitors are bulky. They occupy a considerable footprint on the motherboard. The problem is exacerbated with the current trend of reducing the size of all forms of portable computing equipment from laptop to netbook, increasing …
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Modeling and Design of Planar Integrated Magnetic Components
… This piece of work deals with the modeling and design of planar integrated magnetic component for power electronics applications. First, one-dimensional eddy current analysis in some simple winding strategies is discussed. Two factors are defined in order to quantify the skin and proximity …
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Analog-digital co-existence in 3D-IC
… rates, complex modulation schemes and low power design. The cost and performance benefits of conventional lithographic scaling are diminishing as process cost increases exponentially. 3D integration has the potential to keep driving performance forward while keeping cost down. The possibility to …
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Low Temperature Co-fired Ceramics Technology for Power Magnetics Integration
… behavior. In the development of the LTCC chip inductor, various geometries are evaluated. Rectangular-shaped conductor geometry is selected due to its potential to obtain a much smaller footprint, as well as the likelihood of having lower losses than almond-shaped conductors with the same …
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Packaging of a High Power Density Point of Load Converter
… way is to fundamentally change the way these inductors are designed. This work will explore the use of low temperature co-fired ceramic (LTCC) tapes in the magnetic design to allow a low profile planar inductor to be used as a substrate. LTCC tapes have excellent properties in the 1-10 MHz …
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3D modeling and integration of current and future interconnect technologies
… performance and signal integrity in the circuit design phase. A full phase simulation for performance estimation of a large-scale circuit not only require a massive computational resource but also need a lot of time to produce acceptable results. The estimation of performance/signal integrity of …
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