Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Ultra-Low-Voltage"”.
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Ultra-low voltage CMOS operational amplifiers
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Ultra-low Voltage Digital Circuits and Extreme Temperature Electronics Design
… e.g., large swings in ambient temperature, very low supply voltage, high radiation. Such applications include sensor networks, wearable electronics, unmanned aerial vehicles, spacecraft, and energyharvesting systems. This dissertation splits into two projects that study digital electronics …
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An ultra-low voltage FFT processor using energy-aware techniques
… focus toward enabling energy-awareness, allowing the processor to be energy-efficient for a variety of operating scenarios. This is in contrast to conventional low-power design, which optimizes for the worst-case scenario. Here, three energy-quality scalable hooks are designed into a …
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Variation Tolerant Energy Efficient Design For Ultra Low Voltage Digital Circuits
… semiconductor industry in recent years. Supply voltage scaling offers a promising solution for this matter. To control the energy consumption and limit the power dissipation of a circuit, supply voltage should be scaled continually. Threshold voltage should also be reduced to sustain performance …
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Fully integrated ultra low voltage cold start system for thermal energy harvesting . . .
… boost converters, which are able to step-up voltages from as low as 10 mV. However, they often need > 200 mV in order to start up initially. Current solutions for achieving a low voltage start up require the use of bulky off-chip transformers, leading to undesired area overhead. This research …
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Advanced Energy-Efficient Devices for Ultra-Low Voltage System: Materials-to-Circuits
… has been a continual reduction in operating voltage, thereby quadratically down-scaling active power dissipation. However, as state-of-the-art silicon (Si) complimentary metal-oxide-semiconductor (CMOS) field-effect transistors (FETs) enter sub-threshold operation in the ultra-low supply …
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Fast Approximation Framework for Timing and Power Analysis of Ultra-Low-Voltage Circuits
Ultra-Low-Voltage operation, which can be considered an extreme case of voltage scaling, can greatly reduce the power consumption of circuits. Despite the fact that Ultra-Low-Voltage operation has been proven to be very effective by several successful prototypes in recent years, there is no fast, …
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Ultra Low-Voltage and Ultra Low-Power Integrated Circuits targeting IoT and Next-Generation Biosensing
L'abstract è presente nell'allegato / the abstract is in the attachment
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Emulsification, separation, and manipulation of oil-water systems using condensation, electrocoalescence, and electrowetting
… using condensation, separate oil and water using low-voltage electrocoalescence, and manipulate oil and water using ultra low-voltage electrowetting. The emulsification method relies on condensation of one liquid phase onto another. As nanoscale droplets of water condense onto the surface of oil, …
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MICROSCOPIC SURFACE ELECTROCHEMICAL ACTUATORS FOR VOLTAGE-TUNABLE OPTICAL ELEMENTS
Voltage controllable optical resonators (VCOR) are critical to the world of photonics, theyallow dynamic tuning of the amplitude and phase of light via electric modulation of two semi reflective plates. Here, I present a novel application of a voltage-driven micro actuator technology, the surface …
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Low power circuits with integrated magnetics for sensors and energy harvesting systems
… magnetics in microelectronics to enable low power, energy-efficient sensing, as well as energy harvesting to power the sensors, in a compact form factor. For industrial applications, we present the design of a bandwidth-scalable, integrated fluxgate magnetic-to-digital converter for …
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Low-power and application-specific SRAM design for energy-efficient motion estimation
… video coding, in this context, is crucial for lowering the transmission and storage costs for portable electronics. However, modern video coding standards impose a large hardware complexity. Hence, energy-efficiency of these hardware blocks is becoming more critical than ever before for mobile …
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Design Space Exploration of Digital Circuits for Ultra-low Energy Dissipation
The ever expanding market of ultra portable electronic products is compelling the designer to invest major efforts in the development of small and low energy electronic devices. The driving force and benefactors of such devices are (but not limited to) e-health system, sensor network applications, …
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Design Techniques for Frequency Synthesizers in Highly Scaled CMOS Technologies
… to high speed digital blocks (dividers), to low speed analog (charge pump and loop filter) and low speed digital (phase frequency detector) circuits. In this thesis, we study design challenges and present corresponding solutions to realize PLLs in the nano-scale CMOS era. In particular we …
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Ultra-low-power circuits and systems for wearable and implantable medical devices
… focuses on the design and implementation of an ultra-low-power, mixed-signal front-end for a wearable ECG monitor in a 0.18pm CMOS process. A mixed-signal architecture together with analog circuit optimizations enable ultra-low-voltage operation at 0.6V which provides power savings through …
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Emerging Power-Gating Techniques for Low Power Digital Circuits
… power has become a critical problem in modern low-power microprocessors. This is especially true for ultra-low-voltage (ULV) circuits, where high levels of leakage force designers to chose relatively high threshold voltages, which limits performance. In this thesis, an industry-standard …
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Progettazione di circuiti analogici CMOS per applicazioni a bassissimo consumo di corrente e a bassissima tensione
I moderni sistemi su chip (SoC) contengono sempre più funzionalità che devono essere più intelligenti che mai, portando alla rapida crescita di sistemi a basso consumo di potenza come dispositivi elettronici medici portatili e indossabili, smartphone, sistemi intelligenti wireless, reti di …