Analysis of Tidal Inlet Stability

The main goal of this project is to predict the in uence of non-uniform basin depths on the stability of single inlet systems. This is achieved by making use of Escoffier's principle, which poses a relationship between the relative water flow velocity in an inlet and the rate of change of its cross-sectional area. To this end, a thorough...

Series Operation of Switched-mode Power Supplies for LED Lighting

Solid-state LED lighting, as the fourth-generation lighting technology, has drawn great popularity due to its long lifetime, high luminous efficacy, high energy efficiency and sustainability. Technical advancement and rapid cost-down in LED technology bring entirely new possibilities in lighting applications and stimulate a significant...

Energy-efficient capacitive-sensor interface based on an incremental Delta-Sigma modulator employing current-starved inverter-based OTAs

An interface circuit for a fully-integrated capacitive humidity-sensor is implemented using 0.16?m standard CMOS technology. This interface circuit is intended to be used in a smart RFID sensor platform. This thesis focuses on improving the energy-efficiency of the interface circuit. A third-order incremental delta-sigma converter based on...

DLL Based Single Slope ADC For CMOS Image Sensor Column Readout

This thesis presents a Delay Locked Loop(DLL) based Single Slope ADC. Compared to the convertional Single Slope ADC, the readout speed is increased by 16 times. A DLL is designed with a start-controlled Phase Frequency Detector (PFD), a differential ended Charge Pump (CP) and fully differential Delay Cells (DC). The multi-stage comparator with...

Investigation on Capacitive Sensor Interface with Improved Immunity to External Interference

This thesis presents the results of the undertaken investigation on industrial capacitance sensor interface for measuring small displacements, with focus on immunity to external interference, especially when using long cables. Several principles have been investigated and comparison has been made, followed by the proposed measurement principle,...