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 13 of 13 for “"micropower"”.
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Design of micropower operational amplifiers
… these concerns, this thesis presents a design of micropower Class AB operational amplifiers which has the ratio of gain bandwidth product to supply current higher than that of an existing IC. The design is in a 0.6pxm CMOS process. The input stage of the design has the folded-cascode architecture …
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A micropower DSP for sensor applications
… of power. This thesis describes the design of a micropower DSP intended for medium bandwidth microsensor applications (such as acoustic sensing and tracking) which achieves 4 MIPS performance at 40 [mu]W (10 pJ per instruction) operating at 450 mV and fabricated in 90 nm CMOS. Energy efficiency …
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A micropower ultra-wideband RADAR profiling system
Ultra-wideband (UWB) technology can be used in many applications, including radar, communications, and geo-location. In this dissertation, UWB technology is utilized to directly generate sub-nanosecond pulses with more than 1 GHz bandwidth to implement radio detection and ranging (RADAR) for …
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CargoNet : micropower sensate tags for supply-chain management and security
This thesis describes the development of a system of sensate active RFID tags for supply-chain management and security applications, necessitated by the current lack of commercial platforms capable of monitoring the state of shipments at the crate and case level. To make a practical prototype, …
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Design considerations for minimizing noise in micropower CMOS integrated circuits
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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Design of a Low Power Cargo Security Device Using a Micropower Ultra-Wideband Impulse Radar
… National Laboratory (LLNL) has been developing a micropower impulse radar capable of detecting objects and motion within a short to medium range. Due to its past uses for intrusion and motion detection, the LLNL micropower impulse radar is a top prospect for a sensor technology used in a cargo …
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A Plastic-Based Thick-Film Li-Ion Microbattery for Autonomous Microsensors
… lithium-ion microbattery for use in a hybrid micropower system for autonomous microsensors. A composite porous electrode structure and a liquid state electrolyte were implemented in the microbatteries to achieve the high power capability and energy density. The use of single-walled carbon …
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Designing an ultra low quiescent current buck switching regulator
… of good control dynamics at low currents. This micropower buck regulator was designed, fabricated, and tested in silicon to measure its characteristics as compared to simulation and desired specifications.
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Design considerations and characterization of Origami [TM] electrochemical capacitors
… where size and weight constraints are critical. Micropower devices such as microelectromechanical systems (MEMS) and miniature remote sensors with consumption in the range of milliWatts to Watts are increasingly common. To help meet the power demands of these miniature devices, micron-scale …
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Low resonant frequency beam design for a piezoelectric energy harvesting device
… Using MEMS technology, a thin film Piezoelectric Micropower Generator device could be constructed. The PMPG is simply a cantilever structure tuned to resonate at environmental frequencies. At resonance, sizable strain is induced in a layer of the beam made from the piezoelectric material, PZT, …
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A highly digital, reconfigurable and voltage scalable SAR ADC
Micropower sensor networks have a broad range of applications which include military surveillance, environmental monitoring, chemical detection and more recently, medical monitoring systems. Each node of the sensor network requires energy efficient circuits powered off small batteries or harvested …
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An ultra-low-power neural recording amplifier and its use in adaptively-biased multi-amplifier arrays
The design of a micropower energy-efficient neural recording amplifier is presented. The amplifier appears to be the lowest power and most energy-efficient neural recording amplifier reported to date. I describe low-noise design techniques that help the neural amplifier achieve an input-referred …
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A mobilidade social na enfermagem: a questão das lutas simbólicas
… on rituais and on the symbolism of attributions, micropower spaces, through which rigid positions of historical roots perpetuate and reproduce themselves; stress on the hierarchic model, once the career levels distinguished from one another in the past are still kept different by the educational …