الفهرس 
Switched-Mode Power SuppliesOnly 14 pages are availabe for public view
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Abstract
This thesis demonstrates design and operations of switching mode power
supplies (SMPS) in general and the (PWM) in particular.
In this thesis we demonstrate the power supplies smart power IC’s, the
different topologies, the kind of control and the choice of semiconductor
used in it.
We simulate a PC SMPS circuit and explain the function of its building
blocks. Then we precede the simulation of the SMPS where we make a
model for the PWM control IC instead of the control IC TL494 in the
circuit using its block diagram and reverse engineering techniques.
Then the results of simulation are verified by measuring the output
regu lation characteristics, the overall efficiency and comparing the
measurement with t.he simulated results. A good agreement between the
simulated results and measurements is obtained.