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  • A Wide Modulation Range and PVT-Tolerant Spread-Spectrum Modulation Clock Generator

    Creator:
    Sun, Hyuk
    Abstract:
    This dissertation presents a phase domain in-loop-bandwidth spread-spectrum clock generation technique. In this proposed technique, a charge-based discrete-time loop filter is proposed to enable the phase domain in-loop-bandwidth spread-spectrum modulation without a delta-sigma modulator or time-to-digital converter. The in-loop-bandwidth modulation technique maximizes the loop bandwidth to improve phase noise suppression...
    Resource Type:
    Dissertation
    Full Text:
    give thanks to the committee members, Professor Gabor Temes, Professor Karti Mayaram, and Professor

  • Evaluation of the stray load losses for a three-phase induction motor

    Creator:
    Nagornyy, Aleksandr S.
    Abstract:
    The evaluation of the stray-load losses in induction motors is an important part of the efficiency estimation process. However, stray-load losses have several components which are difficult to isolate and calculate. Consequently, they are more readily determined by test. IEEE Standard 112-1996 recommends the testing of electrical induction motors at...
    Resource Type:
    Masters Thesis
    Full Text:
    , encouragement and patience. I also would like to thank the other members of the Committee: Dr. Karti Mayaram

  • Design and Implementation of a Frequency Controlled Electric Hot Water Heater Retrofit Thermostat

    Creator:
    Johanesen, Mackenzie S.
    Abstract:
    This design of a Grid Friendly Electric Hot Water Heater Thermostat was built for the Electrical and Computer Engineering Senior Design course, ECE44x. The design enables hot water heaters to respond to imbalances in the grid seen through deviations from standard grid frequency by varying the power output to the...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Karti Mayaram, Committee Member, representing Electrical and Computer Engineering

  • Modeling and Design of Interconnects and Passive Components for Millimeter-Wave Integrated Circuits in Silicon

    Creator:
    Zheng, Lei
    Abstract:
    For mmWave Integrated Circuit (IC) design, co-integration of passives can reduce size and power consumption, increase reliability, and reduce overall cost. However, skin and proximity effects in the metallization are aggravated at mmWave frequencies, resulting in increased attenuation and degradation of overall performance. Furthermore, tight integration of passive components (to...
    Resource Type:
    Dissertation
    Full Text:
    Profs. Karti Mayaram, Arun Natarajan and Gabor Temes for being on my program committee. I enjoyed my

  • Ring Amplifier Design Techniques for High-Precision and High-Speed Amplification

    Creator:
    Leuenberger, Spencer
    Abstract:
    Demands of today's integrated society dependent on communication systems have driven the creation of ever more efficient analog-to-digital converters. For the same reasons, digital circuitry has rapidly expanded to serve all the different systems and needs of consumers. The trend of technology development has been to make these digital circuits...
    Resource Type:
    Dissertation
    Full Text:
    Dr. Temes, Dr. Mayaram, and Dr. Natarajan, thank you for providing advice over my five years here in

  • Architectural Solutions for Analog Imperfections in ΔΣ Analog-to-Digital Based Systems

    Creator:
    Zali Asl, Samira
    Abstract:
    For today’s ubiquitous portable devices, innovative integrated circuits with high performance yet very low power are necessary. As these devices are used to communicate and sense real world signals in the environment, analog-to-digital converters (ADC) and systems are the key interface circuits needed to digitize the sensed information and they...
    Resource Type:
    Dissertation
    Full Text:
    . Karti Mayaram. He was an honest assessor of my work … always caught me when I opened the “can of worms

  • Power efficient analog-to-digital converters using both voltage and time domain information

    Creator:
    Oh, Taehwan
    Abstract:
    As advanced wired and wireless communication systems attempt to achieve higher performance, the demand for high resolution and wide signal bandwidth in their associated ADCs is strongly increased. Recently, time-domain quantization has drawn attention from its scalability in deep submicron CMOS processes. Furthermore, there are several interesting aspects of time-domain...
    Resource Type:
    Dissertation
    Full Text:
    , Prof. Karti Mayaram, and Prof. Pavan Hanumolu for serving as my committee members. Their technical

  • Digitally assisted control techniques for high performance switching DC-DC converters

    Creator:
    Khan, Qadeer Ahmad
    Abstract:
    Digitally controlled switching DC-DC converters have recently emerged as an attractive alternative to conventional switching converters based on analog control techniques. This research focuses on eliminating the issues associated with the state of the art switching converters by proposing three novel control techniques: (1) a digitally controlled Buck-Boost converter uses...
    Resource Type:
    Dissertation
    Full Text:
    . Karti Mayaram and Prof. Ted Brekken for serving on my exam committee and providing constructive

  • Wide-bandwidth, high-resolution delta-sigma analog-to-digital converters

    Creator:
    Zanbaghi, Ramin
    Abstract:
    There is a significant need in recent mobile communication and wireless broadband systems for high-performance analog-to-digital converters (ADCs) that have wide bandwidth (BW>5-MHz) and high data rate (>100-Mbps). A delta-sigma ADC is recognized as a power-efficient ADC architecture when high resolution (>12-b) is required. This is due to several advantages...
    Resource Type:
    Dissertation
    Full Text:
    , Professor Pavan Hanumolu, and Professor Kartikeya Mayaram for their guidance on my research. I am grateful

  • High-speed CMOS dual-modulus presalers for frequency synthesis

    Creator:
    Desikachari, Ranganathan
    Abstract:
    Phase-locked loop (PLL) frequency synthesizers lie at the heart of most radio transceivers. An important objective of the electronics and communications industry is to design high-speed building blocks which dissipate the lowest possible power, and to ac- complish this with the cheapest technology. The dual-modulus prescaler is one of the...
    Resource Type:
    Masters Thesis
    Full Text:
    to thank all the committee members - Dr.Karti Mayaram, Dr.Huaping Liu and Dr.Joseph Nibler for