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 202 for “"inductors"”.
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Wideband characterization of thick film inductors
… the characterization of multilayer thick film inductors over the frequency range from DC to a few GHz. The modeling technique is based on the use of Time Domain Reflectometry (TDR) measurements to reveal the transmission structure equivalent network of the multilayer thick film inductor. The …
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Hybrid Core Inductors for High Saturation Capability
… power electronics is limited by lossy and large inductors that are constrained by the saturation of their magnetic core material. Such saturation-limited inductors are typically found in power electronics applications where the inductor sees large dc current with relatively small ac ripple, such …
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Fabrication of chip-scale radio frequency inductors
… fabrication limits for wire-based chip-scale inductors. There are many potentially viable methods for fabricating planar inductor coils. Without an understanding of the relevant physics, it is impossible to know which of these techniques is most appropriate or even feasible. The analysis …
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Radio frequency miniature passive devices: ferrite antennas and inductors
… (RF) passive devices, including antennas and inductors, are key components in mobile telecommunication systems. The interaction of magnetization dynamics with electromagnetic waves in the RF devices allows electromagnetic radiation, wave propagation, and RF signal processing. Ferrites possess …
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Integrated Voltage Regulators with Thin-Film Magnetic Power Inductors
… conversion and management with on-chip power inductors. Integrated voltage reg- ulators will also enable fine-grained power management, by providing dynamic scaling of the supply voltage in concert with the clock frequency of synchronous logic to throttle power consumption at periods of low …
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Magnetic flux measurement of superconducting qubits with Josephson inductors
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Performance Improvement of Power Conversion by Utilizing Coupled Inductors
… issues of advanced topologies with coupled inductors. The proposed innovative solutions can achieve significant performance improvement compared to the state-of-the-art technology. New applications call for high-efficiency high step-up DC-DC converters. The basic topologies suffer from …
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The Modified-Multiphase Boost Converter: Combined Inductors and Capacitors Topology
… main switches (multiphase), the input inductors and modified capacitors of the modified topology can be reduced to just one of each, lowering the number of components, size, and cost. Additionally, multiphase DC/DC converters lower input/output voltage and current ripples while …
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Design of fully digital inductors for low bandwidth filter applications
We are currently living in the age of intelligent machines, where we are interested in acquiring data and making decisions all from some sort of embedded environment. Of particular value are personal health metrics, such as the analysis of heart rate, muscle action potentials, and brain waves. …
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Application Considerations of Multiphase Monolithic Buck Regulators with Coupled Inductors
… In particular, the research incorporates coupled inductors to take advantage of its magnetic coupling between different phases to achieve minimal output ripples and ultra-fast transient response. The results of this research emphasize performance differences in control loop and transient response, …
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Design and fabrication of planar inductors for inductive proximity sensors
Position sensing is one of the most important tasks in the industrial manufacturing of goods and materials. Position sensing can take on a variety of forms and is used in the measurement of a wide range of variables such as distance, speed, the number of revolutions per minute, orientation, …
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Resonant Cross-Commutated Dc-Dc Regulators with Omni-Coupled Inductors
… and dc fluxes is given. Four fabricated one-turn inductors achieved 2.1% higher efficiency and 50% smaller total magnetic volume than the commercial inductors in the same rccBuck converter. The Omni-coupled inductors (OCI), composed of a twisted E-E core and PCB windings, further improve power …
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Computer Aided Design and Fabrication of Magnetic Composite Multilayer Inductors
… effects of constructing multilayered thick film inductors using an artificially modulated magnetic composite structure. It was found that selectively introducing regions of low permeability material increased both the inductance and the current carrying capacity compared to thick film inductors …
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Study on Three-level DC/DC Converter with Coupled Inductors
… current ripple reduction, while inversed coupled inductors can suppress the circulating current between phase legs. Compared with conventional non-interleaving three-level DC/DC converter with non-coupling inductors, both inductor current ripple and output current ripple are largely reduced by …
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Design of a high quality factor spiral inductors in RF MCM-D
… 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, total …
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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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DESIGN, SIMULATION AND OPTIMIZATION OF HIGH Q RF SPIRAL INDUCTORS ON SILICON CHIPS
… integrated circuits, on-chip spiral inductors are widely used due to their low cost and ease of process integration. However, the lossy Si substrate makes the design of high Q passive components difficult. Although there have been many works done to find many methods to improve the Q …
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Analysis and design of wideband voltage controlled oscillators using self-oscillating active inductors.
… oscillator design employs resonators with active inductors electronic circuits simulating the behavior of passive inductors using only transistors and capacitors. Such resonators occupy only a fraction of the silicon area necessary for a passive inductor, and thus allow to use chip area more …
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