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Filtering by: Creator Kovács, Gabor M. Remove constraint Creator: Kovács, Gabor M. Degree Level Doctoral Remove constraint Degree Level: Doctoral Rights Statement Copyright Not Evaluated Remove constraint Rights Statement: Copyright Not Evaluated

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  • Compensation techniques for cascaded delta-sigma A/D converters and high-performance switched-capacitor circuits

    Creator:
    Sun, Tao
    Abstract:
    This thesis describes compensation techniques for cascaded delta-sigma A/D converters (ADCs) and high-performance switched-capacitor (SC) circuits. Various correlated-double-sampling (CDS) techniques are presented to reduce the effects of the nonidealities, such as clock feedthrough, charge injection, opamp input-referred noise and offset, and finite opamp gain, in SC circuits. A CDS technique...
    Resource Type:
    Dissertation
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    -Capacitor Circuits Abstract approved: Gabor C. Temes This thesis describes compensation techniques for

  • High-accuracy circuits for on-chip capacitor ratio testing and sensor readout

    Creator:
    Wang, Bo, 1970-
    Abstract:
    The precise measurement of a capacitance difference or ratio in a digital form is very important for capacitive sensors, for CMOS process characterization as well as for the realization of precise switched-capacitor data converters, amplifiers and other circuits utilizing ratioed capacitors. This thesis introduces design techniques for on-chip capacitor ratio...
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    Dissertation
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    -Accuracy Circuits for On-Chip Capacitor Ratio Testing and Sensor Readout. Abstract approved. Gabor C

  • Design techniques of high-performance switched capacitor circuits in the presence of component imperfections

    Creator:
    Huang, Yunteng
    Abstract:
    This thesis describes design techniques for high-performance switched-capacitor (SC) circuits, primarily for high-linearity low-noise SC circuits in the presence of component imperfections, such as nonlinear op-amp voltage transfer characteristics, capacitor nonlinearities as well as the finite op-amp dc gain and op-amp offset and noise. Various correlated-double-sampling (CDS) schemes are discussed,...
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    Dissertation
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    Imperfections. Abstract approved: Gabor C. Temes This thesis describes design techniques for high

  • Oversampling digital-to-analog converters

    Creator:
    Shu, Shaofeng
    Abstract:
    Oversampling and noise-shaping methods for digital-to-analog (D/A) conversion have been widely accepted as methods of choice in high performance data conversion applications. In this thesis, the fundamentals of D/A conversion and oversampling D/A conversion were discussed, along with the detailed analysis and comparison of the reported state-of-the-art oversampling D/A converters....
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    Dissertation
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    presented on June 7. 1995. Title: Oversampling Digital-to-Analog Converters. Abstract approved: Gabor C

  • Improved design techniques for low-voltage low-power switched-capacitor delta-sigma modulators

    Creator:
    Grilo, Jorge
    Abstract:
    This dissertation investigates the constraints which arise when switched-capacitor (SC) delta-sigma modulators are designed for low-voltage operation, targeting also low power dissipation, and proposes methods of improving the performance and optimizing for low power dissipation. This is accomplished by identifying critical elements whose performance can lead to increased power dissipation,...
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    Dissertation
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    Techniques For Low-Voltage Low-Power Switched-Capacitor Delta-Sigma Modulators. Abstract approved: Gabor C

  • High-linearity switched-capacitor circuits in digital CMOS technologies

    Creator:
    Yoshizawa, Hirokazu
    Abstract:
    In this thesis, novel design techniques have been proposed for implementing high-linearity SC circuits in a standard digital CMOS process. They use nonlinear MOSFET capacitors instead of linear double-poly capacitors. To reduce their nonlinearities, a bias voltage is applied to keep MOSFET capacitors in their accumulation regions. For further reduction...
    Resource Type:
    Dissertation
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    Switched-Capacitor Circuits in Digital CMOS Technologies Abstract approved: Gabor C. Temes In this

  • Novel switched-capacitor circuits for delta-sigma modulators

    Creator:
    Yesilyurt, Ayse Gul
    Abstract:
    Oversampled delta-sigma modulation is one of the widely used A/D conversion techniques for narrow bandwidth signals. In this study several new lowpass and bandpass delta-sigma modulator architectures as well as novel pseudo-N-path integrators that can be used in implementing these architectures are proposed. By using multiplexing techniques the new lowpass...
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    Dissertation
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    Modulators. Abstract approved: Abstract approved: Prof. Gabor C. Temes of. John G. Kenney Oversampled

  • Optimum equalization and synchronization of broadband multicarrier systems

    Creator:
    Lashkarian, Navid
    Abstract:
    The application of information theory and digital signal processing techniques to digital communication has resulted in robust methods for reliable high speed data transmission over noisy channels environments. Among these methods, multicarrier systems have become a viable solution for exploiting maximum spectral efficiency over both wideband highly dispersive static and...
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    Dissertation
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    to my graduate committee members, Dr. Gabor Temes, Dr. Wojtek kolodziej , Dr. Un-Ku Moon and Dr

  • A DSP controlled multi-level inverter providing DC-link voltage balancing, ride-through enhancement and common-mode voltage elimination

    Creator:
    Dai, Shaoan
    Abstract:
    With the development of high performance power electronic and semiconductor technologies, Adjustable Speed Drive (ASD) systems are increasingly applied in residential, commercial and industrial applications. Due to the advantages at higher power ratings, the three-level Neutral-Point-Clamped (NPC) Voltage Source Inverter (VSI) is being employed in industrial and traction applications, static...
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    Dissertation
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    committee: Dr. Alan Wallace, Dr. Gabor C. Temes, Dr. Kartikeya Mayaram and Dr. Jon Herlocker for their

  • Multi-bit delta-sigma switched-capacitor DACs employing element-mismatch-shaping

    Creator:
    Lin, Haiqing
    Abstract:
    Delta-sigma modulators are currently a very popular technique for making high-resolution analog-to-digital and digital-to-analog converters (ADCs and DACs). Most delta-sigma modulators in production today employ single-bit quantization because a 1-bit DAC is inherently linear, whereas a multi-bit DAC is not. Were it not for this drawback, the use of multi-bit...
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    Dissertation
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    , Prof. John T. Stonick, Prof. Gabor C. Temes and other ECE Department faculty members such as: Prof