الفهرس 
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Abstract
A DC-DC converter is employed to develop a regulated voltage or current, derived
from an unregulated power supply, or a battery. Instances of these applications include
battery chargers, electronic air purifiers, emergency exit signs, distributed power
systems, and renewable energy solar cell. This thesis presents the design procedures of
different compensation schemes for voltage mode controlled (VMC) DC-DC switching
converters. Integral (I) controller, Proportional plus integral (PI) controller, Fuzzy logic
controller (FLC) and tuned Fuzzy logic controller (TFLC) have been investigated. The
main objective of this thesis is to compare the effect of these controllers in improving
the performance of the DC-DC converters. The evaluation of the output has been
carried out and compared with software simulation using MATLAP and Proteus.
To obtain high performance control of a DC-DC converter, a good model of the
converter is needed. Small-signal models for three basic converter topologies were
derived by means of state-space averaging. State-space averaging is used in this thesis
to derive models for the buck, boost, and buck-boost converters. The control-to-output
transfer function, the output impedance, and the audio susceptibility are extracted from
this model for the buck, boost, and buck-boost converters.
The switched-mode DC-DC converters are widely used power electronic circuits
for their high conversion efficiency and flexible output voltage. These converters are
used to regulate the output voltage against the changes of the input voltage and load
current. This leads to the requirement of more advanced control methods to meet the
real demand. Many control methods are developed for the control of DC-DC
converters, to obtain a control method that has the best performance under any
condition. Conventionally, the DC-DC converters are controlled by linear voltage mode
and current mode control methods. In this thesis, voltage mode control is discussed.
In this modem era technology, an embedded system is widely used in most electric
and electronic components for specific tasks. It is simple systems that are built up for
accomplishing and control specific task. The main purpose is to design and developed
an embedded control system for controlling a DC-DC converter using a
microcontrolIer. An embedded system has three important elements during the
development. One of the elements is designing a hardware that contains a schematic
diagram. Next is the development of the control part. For this thesis, microcontrolIer