DC TO DC CONVERTERS
INTRODUCTION

A DC to DC converter is a conversion device or an electronic circuit which converts a source of direct current from one voltage to other.
Offer a method of generating multiple controlled voltages from a single battery voltage.
Maintain a stable voltage when battery voltage declines as its stored power is drained.
Saving space instead of using multiple batteries.


Applications

Power supplies for personal computers.
170v or 340v are regulated to 5v or 3.3v require ....etc

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Design and Implementation of Module Integrated Converters for
Series Connected Photovoltaic Strings.

by
Leonor L. Linares
B.S., University of Illinois at Urbana-Champaign, 2007

Introduction
The sun radiates energy onto Earth by means of light or heat. Humans have been harnessing this energy for centuries, and it is one of many types that are considered a renewable energy resource, that is, one that is naturally replenished. Photovoltaic’s (PV) is the field in which new technologies and app ....etc

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The parallel operation of two three-pulse controlled converters with interphase transformer (IPT) is modeled and analyzed in this report. The voltage difference between DC voltages of the two converters is absorbed by the interphase transformer, thereby ensuring that independent operation is carried out without any circulating current. six-pulse output voltage also results from it so that less harmonic distortions results from it. The complete circuit is solved by using modified nodal analysis (MNA). While this process, the magnetic nonlinear ....etc

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Carrier Based PWM Algorithm for
Indirect Matrix Converters

Bingsen Wang Giri Venkataramanan
Department of Electrical and Computer Engineering
University of Wisconsin-Madison
1415 Engineering Drive
Madison, WI 53706 USA


Abstract— In this paper, the indirect matrix converter is
systematically studied with the single-pole-multiple-pole
representation. A carrier based PWM algorithm is developed
in two steps. First, the continuous modulation functions for all
the throws are derived based on the desired sinusoid ....etc

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General Description


Abstract
The ADC0801, ADC0802, ADC0803, ADC0804 and ADC0805 are CMOS 8-bit successive approximation A/D converters that use a differential potentiometric ladder—similar to the 256R products. These converters are designed to allow operation with the NSC800 and INS8080A derivative control bus with TRI-STATE output latches directly driving the data bus. These A/Ds appear like memory locations or I/O ports to the microprocessor and no interfacing logic is n ....etc

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Abstract—

This paper proposes a new soft-switched continuousconduction- mode (CCM) boost converter suitable for high-power applications such as power factor correction, hybrid electric vehicles, and fuel cell power conversion systems. The proposed converter achieves zero-voltage-switched (ZVS) turn-on of active switches in CCM and zero-current-switched turn-off of diodes leading to negligible reverse-recovery loss. The components’ voltage ratings and energy volumes of passive components of the proposed converter are greatly reduce ....etc

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Multilevel voltage source converters are emerging as a new breed of power converter options for high-power applications. Here, staircase voltage wave is generated from several levels of dc capacitor voltages. the voltage unbalance between different levels is the major disadvantage of multilevel converters. voltage clamping or capacitor charge control are the main techniques used to solve this. The following types of multilevel voltage source converters are described here:
a)diode-clamp: The diode-clamp method can be applied to highe ....etc

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This article is presented by:

Yrd.Doç.Dr.Mutlu Boztepe


Transformer isolation

Objectives:
• Isolation of input and output ground connections, to meet
safety requirements
• Reduction of transformer size by incorporating high
frequency isolation transformer inside converter
• Minimization of current and voltage stresses when a
large step-up or step-down conversion ratio is needed —
use transformer turns ratio
• Obtain multiple output voltages via multiple transfo ....etc

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Synthesis Control of Switching Topologies of Converters

ABSTRACT
An intelligent inference pipeline for the control of a dc-dc buck-boost converter was designed and built using a semi-custom. The switching topologies of the converter was mapped into a look-up table that was synthesized into controllers, and detectors for building complete instrument systems.
Two different topologies are called buck“boost converter. Both of them can produce an output voltage much larger (in absolute magnitude) than the inpu ....etc

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DAC and ADC converters

-Data Converter impacts the factor for the performance of the overall radio design
-Requirements: very high sampling rates, high number of effective quantization bits, an operating bandwidth of several Ghz, a large spurious-free dynamic range, a reasonable price
-DAC and ADC converters
-Sampling and Quantization
-Nyquist Zones
-Aliasing
-Bandpass filtering – uses image to translate bandpass signals to baseband
-Errors occurs in Quantization
-Quantization Noise
....etc

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