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  • A pipelined baseband digital predistortion architecture for RF amplifier linearization

    Creator:
    Xu, Xiangqing
    Abstract:
    This thesis describes the design of a baseband digital predistortion architecture for radio frequency (RF) amplifier linearization. Existing amplifier linearization techniques are first examined. The nonlinearity of an amplifier can be characterized as amplitude-to-amplitude distortion and amplitude-to-phase distortion. The distortion can be corrected by providing a predistorted driver signal (both...
    Resource Type:
    Masters Thesis
    Full Text:
    nonlinearity of an amplifier can be characterized as amplitude-to-amplitude distortion and amplitude-to-phase

  • Wideband discrete-time delta-sigma analog-to-digital converters with shifted loop delays

    Creator:
    Meng, Xin
    Abstract:
    Low-distortion architecture is widely used in wideband discrete-time switched-capacitor delta-sigma ADC design. However, it suffers from the power-hungry active adder and critical timing for quantization and dynamic element matching (DEM). To solve this problem, this dissertation presents a delta-sigma modulator architecture with shifted loop delays. In this project, shifted loop...
    Resource Type:
    Dissertation
    Full Text:
    approved: ______________________________________________________ Gabor C. Temes Low-distortion

  • 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
    Full Text:
    current distortion AN ABSTRACT OF THE THESIS OF Marcel Merk for the degree of Master of Science in

  • Hybrid electric vehicle active rectifier performance analysis

    Creator:
    Amon, Ean A.
    Abstract:
    In advanced hybrid electric vehicle development, performance and dependability are essential considerations in the design process. High efficiency is crucial in a successful design and fault tolerance is necessary to provide limp-home capability under faulted operating conditions. The reduction of electromagnetic interference is mandatory to reduce interference in communications and...
    Resource Type:
    Masters Thesis
    Full Text:
    Science in Electrical and Computer Engineering presented on January 8, 2007. Title: Hybrid Electric

  • A Microgrid Design Case Study : Synchrophasor Placement and Development of a Protection Laboratory for the Oregon State University - Corvallis Campus

    Creator:
    Huo, Chen
    Abstract:
    In the past two years, Oregon State University (OSU) Corvallis campus suffered several power outages. The estimated cost of one of those outages was close to a million dollars worth of equipment and impact on research projects. Meanwhile, the campus grid operates with severely aging power assets. The reliability of...
    Resource Type:
    Masters Thesis
    Full Text:
    organizations in North America, the Department of Energy (DOE) and the Electric Power Research Institute (EPRI