Basic DC-AC Converter Connections (Square-Wave Operation) • Control of the Output Voltage • Harmonics in the Output Voltage • Filtering of Output Voltage • Practical Realization of Basic Connections • Special Realizations (Application of Resonant Converter Techniques)
Budapest University of Technology and Economics
Polytechnic University, Brooklyn
Survey of Second-Order Resonant Circuits • Load Resonant Converters • Resonant Switch Converters • Resonant DC-Link Converters with ZVS
6.002 Fall 2000
T1: closed T2: open R
VS P= RL + RON
VS + –
1 T = T1 + T2 = f
P = CVS f
Reading: Section 11.5 of A & L.
6.002 Fall 2000 Lecture
vO RON C
1 Square wave input T= f 2 VS 2 P= + CVS f 2 RL
RL RON T " RC" 2 time constant
independent of f. MOSFET ON half the time.
In standby mode, half the gates in a chip can be assumed to be on. So P STATIC per gate is still VS2 .
related to switching capacitor.
This book aims to provide information about Fourier transform to those needing to use infrared spectroscopy, by explaining the fundamental aspects of the Fourier transform, and techniques for analyzing infrared data obtained for a wide number of materials. It summarizes the theory, instrumentation, methodology, techniques and application of FTIR spectroscopy, and improves the performance and quality of FTIR spectrophotometers.
For the first time, the detection of DNA sequences, related to HIV (found in AIDS patients), using Methylene Blue (MB) as the redox indicator was performed. The voltametric signals have been investigated on bared chitosan (CS) modified; probe immobilized (DNA single strand) and target-hybridized (DNA double strand) electrodes sequentially by means of Cyclic Voltammetry (CV) and Square Wave Voltammetry (SWV). The response of hybridization between the probe and perfectly complementary, double-base mismatch, single-base mismatch of analyzed targets were clearly identified.
What is it?
RADAR to detect position of objects.
Counter measures 1. ECM ( e.g. chaff cartridges) 2.
Avoiding detection and innovating deception .
RCS reductions, acoustics, thermal and other EM
emissions.How is it achieved.
Absorbs radar waves or deflects to other directions.
Minimizes heat and other emissions from engine
and other spots.
Makes difficult to detect except closely.Vehicle shape and structure.Smooth edges maximum radio wave
ON that summer day the sky over New York was unflecked by clouds, and the air hung motionless, the waves of heat undisturbed. The city was a vast oven where even the sounds of the coiling traffic in its streets seemed heavy and weary under the press of heat that poured down from above. In Washington Square, the urchins of the neighborhood splashed in the fountain, and the usual midday assortment of mothers, tramps and out-of-works lounged listlessly on the hot park benches. As a bowl, the Square was filled by the torrid sun, and the trees and grass drooped...