Comparator based switched capacitor circuits provide an excellent opportunity to design sampled data systems where the virtual ground condition is detected rather than being continuously forced with negative feedback in Opamp based circuits. This work is an application of this concept to design a 1 order 330 KHz cutoff frequency Lowpass filter operating at 10 MHz sampling frequency in 0.13μm te...

Recently the reduction of power consumption is one of the most important issues in the design of LSI circuits. Circuit designers quite commonly evaluate the power consumption on the basis of the “fact” that when we charge a capacitor C by a voltage source E or when we discharge the capacitor with the voltage E we consume the energy of 12CE . This “fact” can be verified typically for the simple ...

In this study we present a new technique for analysis of capacitor placement in the power distribution systems considering the most of the parameters affected in this problem. Detection of capacitance and optimal placement of capacitors in power distribution system can lead to decrement in losses, enhancement in voltage profile, increment of power factor and freeing up generation capacityand en...

Due to the integration of modern technology such as electric vehicles, the emphasis is expected to shift from mechanical to electric power. Therefore, the need of increasing the power transmission capacity of the electric grid gets highlighted. Since, the construction of transmission lines is a tedious task owing to legalities, environmental impacts and high costs, the series compensated transm...

The continued down scaling of submicron CMOS technology forces innovation of practical and economical circuits that will tolerate reduced headroom (reduced power supply voltage) due to lowering of the technology’s maximum allowable voltage. Given the relatively large threshold voltages with respect to the shrinking headroom, a group of widely used analog signal processing building blocks that a...

This paper discusses power flow control by use of controllable series devices. Through a sensitivity based method the control variables, e.g. series capacitor reactances or phase shifter angles, can be calculated quickly and accurately to obtain desired line flows within the load flow sensitivity boundaries. This method is applied to realistic power flow control scenarios in a simple power system.

This paper presents an approach to wireless power delivery and subsequent power management for low-power batteryless sensors. Broadband multifrequency rectenna arrays which independently receive and rectify two orthogonal wave polarizations provide DC power with decreased variations in a multipath environment. The DC power extracted from 2-18GHz electromagnetic radiation is managed by high effi...

BAWA, GAURAV. Switched-Capacitor Filter Based Type-III Compensation for VoltageMode Control of Switched-Mode Buck Converters. (Under the direction of Dr. Alex Q. Huang). In this dissertation, we propose a novel technique for the voltage-mode control of switchedmode fixed-frequency Buck Converters using Switched-Capacitor Filters (SCF). The salient features of the analog sampled-data Type-III fi...