Index Catalog // ScholarsArchive@OSU

Assessment of the permanent magnet adjustable-speed coupling system (ASCS)

Creator:: Wallace, Alan and von Jouanne, Annette
Abstract:: The purpose of this report is to provide information on the adjustable-speed coupling system (ASCS) including: physical construction, principles of operation, application potential, and laboratory and field test results. In addition, comparison laboratory tests will be presented for conventional adjustable speed drives (ASDs). The ASCS has been tested at three...
Resource Type:: Technical Report

Modeling microarchitecture simulator using object-oriented approach

Creator:: Chan, Chung-lun
Abstract:: With the success of the CounterDataFlow Pipeline microarchitecture developed by Oregon State University, there is increasing demand for a highly flexible high-level simulator modeling tool to support the further expansions and studies of the Counterflow pipeline processors family. This work examines the implementation of a Java-based execution-driven simulator modeling tool,...
Resource Type:: Masters Thesis

Active power filter for the cancellation of harmonic line current distortion

Creator:: Merk, Marcel
Abstract:: With the increased attention on high efficiency and energy savings, power electronic energy conversion equipment is increasingly incorporated in all levels of the power system. The drawback of such equipment is the generation of nonsinusoidal currents in the power distribution network due to the nonlinear operation. Harmonic currents may distort...
Resource Type:: Masters Thesis

Conserving energy in TCP for mobile ad-hoc networks

Creator:: Agarwal, Sandeep, 1973-
Abstract:: The widespread use of TCP as a transport layer protocol for mobile ad-hoc networks and wireline networks has motivated the need to make its implementation highly power efficient specially with respect to ad hoc radio networks. Over the past years many researchers have developed energy efficient protocols for mobile ad-hoc...
Resource Type:: Masters Thesis

Model extraction of a paddle in plastic surface-mount RF-IC packages

Creator:: Sundberg, Garth
Abstract:: Plastic packaging is a cost-effective solution for housing RF and microwave integrated circuits in low cost communication devices. While enabling low cost packaging of integrated circuits, plastic packages including the circuit ground patch (paddle) inside the package can have a significant parasitic effect on circuit performance. The purpose of this...
Resource Type:: Masters Thesis

Designing a dedicated TCP/IP core used for internet appliances at home : an example of a simple hardware web server

Creator:: Liu, Huibo
Abstract:: Internet appliances at home are still at the beginning stage of development now. Many solutions are provided to connect those home appliances on net by wireless way or through wire. However, this thesis only focuses on the key issue of internet appliances, which is connectivity symbolized by the TCP/IP layer...
Resource Type:: Masters Thesis

Experimental verification of a new model for bipolar transistor flicker noise

Creator:: Li, Ling
Abstract:: Previous studies on low frequency flicker noise in bipolar junction transistors (BJT) are reviewed. The original BJT flicker noise sources are mainly attributed to the fluctuation in base surface recombination and the fluctuation in the mobility or diffusivity of free charge carriers. Our experiments were done to verify a newly...
Resource Type:: Masters Thesis

A comparison and assessment of hybrid filter topologies and control algorithms

Creator:: Chen, Lijun
Abstract:: The harmonic problem in power systems is gaining more attention as incidences correlated with harmonics increase. Conventional passive filtering techniques for harmonic mitigation have inherent problems, and purely active filters have the disadvantages of higher costs and ratings. Hybrid active filters inherit the efficiency of passive filters and the improved...
Resource Type:: Masters Thesis

Interpolation-based digital quadrature frequency synthesizer

Creator:: Larson, Ryan John
Abstract:: Traditionally sinusoidal signal generation has been implemented with purely analog circuits such as phase-locked loops. The alternative of using a digital system to perform this signal generation has previously been unattractive due to limitations in clock frequency and size. However, recent advancements in sub-micron fabrication techniques have made the digital...
Resource Type:: Masters Thesis

Powersim : a tool for energy consumption estimation of Palm Pilot applications

Creator:: Lazard, Laurent
Abstract:: In this thesis, we develop a simulator for estimating the energy consumed in executing tasks on a mobile device - the Palm Pilot. We measured the energy consumed by each instruction of the device's assembly language and incorporated these measurements into a public domain emulator for the Palm Pilot. This...
Resource Type:: Masters Thesis

Improved Montgomery Algorithms using special primes and impact on Elliptic Curve Digital Signature

Creator:: Musa, Mehmet
Resource Type:: Masters Thesis

Phase noise models for single-ended ring oscillators

Creator:: Godbole, Devavrata
Abstract:: The tremendous growth of wireless and mobile communications has resulted in placing of stringent requirements on the channel spacing and, by implication, on the phase noise of oscillators, typically mandating the use of passive LC oscillators with high quality factor (Q). However the trend towards large-scale integration and low cost...
Resource Type:: Masters Thesis

Novel phosphor development for alternating-current thin-film electroluminescent devices

Creator:: Maddix, Crystal M.
Resource Type:: Masters Thesis

DC notch filter offset cancellation for direct-conversion receivers

Creator:: Pan, Dongling
Abstract:: Direct-conversion architecture would dominate the modern low power wireless receiver architecture if problems such as offset cancellation, even-order distortion, and flicker noise were solved. Among those problems, offset is the most serious one. This thesis will discuss and analyze one approach to cancel offsets in direct-conversion receivers. First, we explain...
Resource Type:: Masters Thesis

Interactive Internet connection for a remote digital signal processing lab

Creator:: Ehler, Michael
Abstract:: A remote Digital Signal Processing (DSP) lab for the Internet is developed to give students the opportunity to work together online with a remotely located Digital Signal Processor (DSP). Students in different locations can work together with the DSP as if they were present in the lab. To make this...
Resource Type:: Masters Thesis

A fuzzy logic controller design and simulation for a sawmill bucking system

Creator:: Delgado, Fidel
Abstract:: This document investigates, justifies, designs, and simulates the application of a fuzzy logic controller/optimizer in a sawmill bucking system application that is the first production station where stems coming from the mountains are processed in a sawmill. One of the areas of success in the application of fuzzy logic is...
Resource Type:: Masters Thesis

Area efficiency improvement of CMOS charge pump circuits

Creator:: Perigny, Ryan
Abstract:: In this thesis, the literature relating to charge pump dc-dc converters and their uses is reviewed. Charge pumps are useful in many circuits, including low-voltage circuits, dynamic random access memory circuits, switched-capacitor circuits, EEPROM's and transceivers. The important issues relating to charge pump design are power efficiency, output voltage ripple...
Resource Type:: Masters Thesis

Efficient wireless security protocols based on elliptic curve cryptography

Creator:: Aydos, Murat
Abstract:: In recent years, the elliptic curve cryptosystems (ECC) have received attention due to their increased security with smaller key size which brings the advantage of less storage area and less bandwidth. Elliptic curve cryptography provides a methodology for obtaining high-speed, efficient, and scalable implementations of network security protocols. In addition...
Resource Type:: Dissertation

Error canceling low voltage SAR-ADC

Creator:: Wen, Jianping
Abstract:: The design of a switched capacitor successive approximation A/D converter is discussed in this thesis. This design adopts a novel capacitance mismatch error cancellation algorithm proposed in references [25, 27]. Detailed charge domain analysis is given in this thesis, which results in an improvement of the proposed algorithm by tracing...
Resource Type:: Masters Thesis

ASIC design, implementation and anaylsis of a scalable high-radix Montgomery Multiplier

Creator:: Todorov, Georgi
Abstract:: Modular multiplication is a widely used operation in cryptography. Several well-known applications, such as the decipherment operation of the RSA algorithm, the Diffie-Hellman key exchange algorithm, as well as some applications currently under development, such as the Digital Signature Standard and elliptic curve cryptography, all use modular multiplication and modular...
Resource Type:: Masters Thesis

Field theoretic analysis of a class of planar microwave and opto-electronic structures

Creator:: Hahm, Yeon-Chang
Abstract:: With increasing operating frequencies in CMOS RF/microwave integrated circuits, the performance of on-chip interconnects is becoming significantly affected by the lossy substrate. It is the purpose of the first part of this thesis to develop a rigorous field theoretic analysis approach for efficient characterization of single and multiple coupled interconnects...
Resource Type:: Dissertation

SPICE modeling of ACTFEL devices and OLEDs

Creator:: Bender, Jeffrey P.
Abstract:: The achievements of this thesis are the development of several models for the SPICE (Simulation Program with Integrated Circuit Emphasis) simulation of alternating-current thin-film electroluminescent (ACTFEL) devices, organic light-emitting devices (OLEDs), and polymer light-emitting devices (PLEDs). First, an ACTFEL model based on the built-in HSPICE Fowler-Nordheim tunneling diode is developed,...
Resource Type:: Masters Thesis

bBlocks : a flexible object oriented microarchitecture simulation framework

Creator:: Hua, Ying
Abstract:: This research develops an object-oriented approach of modeling microprocessor architecture. A generic modeling library, bBlocks, is proposed as a framework for constructing microprocessor simulation. bBlocks is a collection of predefined abstract components (blocks) implemented in Java, the object-oriented programming language. Blocks are defined and used as the basic components in...
Resource Type:: Masters Thesis

Low frequency 1/f noise of p-MOS, bipolar and lateral bipolar transistors

Creator:: Cheng, Mark
Abstract:: This thesis deals with 1/f noise in p-MOS, bipolar, and lateral bipolar transistors. Experimental measurements determine the appropriate 1/f noise for MOSFET's, bipolar transistors and lateral bipolar transistors. The literature on 1/f noise in p-MOSFETs, bipolar transistors and lateral bipolar transistors is reviewed. The two main sources of low frequency...
Resource Type:: Masters Thesis

Oxide phosphors deposited by activated reactive evaporation for ACTFEL device applications

Creator:: Yokoyama, Tomoe
Abstract:: The goal of this thesis study is to develop an activated reactive evaporation (ARE) system and to demonstrate its utility by fabricating-alternating current thin-film electroluminescent (ACTFEL) oxide phosphor devices. ARE entails evaporation in an activated gas. The main ARE system components are three thermal evaporation sources, a microwave power supply,...
Resource Type:: Masters Thesis

Efficient digital predistortion techniques for power amplifier linearization

Creator:: Zhuo, Min
Abstract:: The importance of spectral efficiency in mobile communications often requires the use of non-constant-envelop linear digital modulation schemes. These modulation techniques carry signal information in both magnitude and phase, thus they must be linearly amplified to avoid nonlinear signal distortion which is not correctable in a typical receiver. A second...
Resource Type:: Masters Thesis

SPICE models for flicker noise in p-MOSFET's and phase noise effects on oscillator circuits

Creator:: Zhou, Junlin, 1973-
Resource Type:: Masters Thesis

A DSP controlled resonant active filter for current harmonic mitigation in three-phase power systems

Creator:: Ünsal, Abdurrahman
Abstract:: Power quality has become an important concern to both electric utilities and end users due to the increased use of non-linear loads in modem power systems over the past decade. Nonlinear loads inject harmonics into the power system and thus may lead to poor power quality and lower power factor....
Resource Type:: Dissertation

Implementation aspects of elliptic curve cryptography

Creator:: Savaș, Erkay
Abstract:: As the information-processing and telecommunications revolutions now underway will continue to change our life styles in the rest of the 21st century, our personal and economic lives rely more and more on our ability to transact over the electronic medium in a secure way. The privacy, authenticity, and integrity of...
Resource Type:: Dissertation

New algorithms and architectures for arithmetic in GF(2[superscript m]) suitable for elliptic curve cryptography

Creator:: Rodríguez-Henríquez, Francisco
Abstract:: During the last few years we have seen formidable advances in digital and mobile communication technologies such as cordless and cellular telephones, personal communication systems, Internet connection expansion, etc. The vast majority of digital information used in all these applications is stored and also processed within a computer system, and...
Resource Type:: Dissertation

A substrate noise coupling model for lightly doped CMOS processes

Creator:: Sadate, Aline C.
Abstract:: This thesis presents a design-oriented model for lightly doped CMOS substrates. The model predicts the substrate noise coupling between noisy digital and sensitive analog blocks in the early stages of the design. The model scales with the size and separation of these blocks and it is validated with device simulations...
Resource Type:: Masters Thesis

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