Index Catalog // Hyrax

A survey on continuous-time modulators : theory, designs and implementations

Schöpfer:: Gao, Xiaoran
Abstract:: Recently, delta-sigma modulation has become a widely applied technique for high-performance analog-to-digital conversion of narrow-band signals. Most of the early designs used discrete-time structure for good accuracy and good linearity. The transfer functions are independent of the clock frequency. However, high unity-gain bandwidths of the opamps are required to satisfy...
Resource Type:: Masters Thesis

Efficient power conversion interface circuits for energy harvesting applications

Schöpfer:: Le, Triet T.
Abstract:: Harvesting energy from the environment for powering micro-power devices have been increasing in popularity. These types of devices can be used in embedded applications or in sensor networks where battery replacement is impractical. In this dissertation, different methods of energy harvesting from the environment are explored as alternative sources of...
Resource Type:: Dissertation

An efficient modeling approach for substrate noise coupling analysis with multiple contacts in heavily doped CMOS processes

Schöpfer:: Özis, Hatice Dicle
Abstract:: A computationally efficient and accurate substrate noise coupling model for multiple contacts in heavily doped CMOS processes is presented and validated with simulations and experimental data. The model is based on Z parameters that are scalable with contact separation and size. This results in fast extraction of substrate resistances for...
Resource Type:: Masters Thesis

A substrate noise coupling model for lightly doped CMOS processes

Schöpfer:: 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

Automated model parameter extraction for noise coupling analysis in silicon substrates

Schöpfer:: Peterson, Brett
Abstract:: An automated method, requiring the fabrication of a small set of test structures, efficiently extracts the coefficients of Z-parameter based macromodels. The extraction approach has been validated for both heavily and lightly doped substrates and can be applied to a variety of technologies. After the parameters of a macromodel have...
Resource Type:: Masters Thesis

Improved design techniques for analog and mixed circuits

Schöpfer:: Nishida, Yoshio
Abstract:: Although the digital revolution can realize many of past analog components in the digital forms, our world is surrounded with analog signals such as voice, temperature, etc. The bridge between these two worlds is one of key performance limitations among overall systems and it includes analog filters and data converters....
Resource Type:: Dissertation

Novel design and implementation of a permanent magnet linear tubular generator for ocean wave energy conversion

Schöpfer:: Prudell, Joseph H.
Abstract:: The world’s energy consumption is growing at an alarming rate and the need for renewable energy is apparent now more than ever. Estimates have shown that optimization of the extraction of energy from the ocean could significantly aid the world’s quest for sustainable and affordable energy services for all. From...
Resource Type:: Masters Thesis

A distributed local computer network : FISHNET (Facilities Integrated in a Shared Habitat NETwork)

Schöpfer:: Kang, Yong Joong
Abstract:: FISHNET (Facilities Integrated in a Shared Habitat) is a communication subnet architecture utilizing a hybrid application of point-topoint and broadcast communications to achieve a high degree of network performance. This objective is achieved through utilizing a dual bus structure: a data bus and a control bus. The data bus consists...
Resource Type:: Dissertation

Architecture design of multiplexed incremental analog-to-digital converters

Schöpfer:: Zhang, Zhiqing
Abstract:: Analog-to-Digital Data Converters (ADCs) used in instrumentation and measurements often require high absolute accuracy, including excellent linearity and negligible dc offset. Incremental data converters (IDCs) provide a solution for such measurement applications. Since IDCs are essentially delta-sigma converters with reset operation before each conversion, they retain most of the advantages...
Resource Type:: Masters Thesis

Efficient VLSI architectures for MIMO and cryptography systems

Schöpfer:: Li, Qingwei
Abstract:: Multiple-input multiple-output (MIMO) communication systems have recently been considered as one of the most significant technology breakthroughs for modern wireless communications, due to the higher spectral efficiency and improved link reliability. The sphere decoding algorithm (SDA) has been widely used for maximum likelihood (ML) detection in MIMO systems. It is...
Resource Type:: Dissertation

Hyrax

A survey on continuous-time modulators : theory, designs and implementations

Efficient power conversion interface circuits for energy harvesting applications

An efficient modeling approach for substrate noise coupling analysis with multiple contacts in heavily doped CMOS processes

A substrate noise coupling model for lightly doped CMOS processes

Automated model parameter extraction for noise coupling analysis in silicon substrates

Improved design techniques for analog and mixed circuits

Novel design and implementation of a permanent magnet linear tubular generator for ocean wave energy conversion

A distributed local computer network : FISHNET (Facilities Integrated in a Shared Habitat NETwork)

Architecture design of multiplexed incremental analog-to-digital converters

Efficient VLSI architectures for MIMO and cryptography systems

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