The conversion of DC into DC with the output generated at a different voltage level as compare to the input with the help of linear mode and switching mode. Further more the use of switch mode power supply for DC to DC converters is used. Under the shadow of SMPS different topologies are examined like buck converter, boost converter and buck boost converter. Forward converter is a most authentic mechanism of switched mode power supply schematic design in power electronics that is highly capable to generating controlled and isolated dc voltage from the unregulated dc input supply. Task established for design of entirely different circuit in which input DC power supply of 12 volts at approximately 30 amperes to achieve the output of 24 volts. Combine working of very sensitive components of circuit which are transistor, capacitor, and diode etc. It is anticipated of the design that the overall strength is explained in theory and measured in practice.

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Table of contents

Abstract
Introduction
History
DC to DC converter
Linear
Switched-mode conversion
Magnetic

Switch mode power supply
Input rectifier
Inverter
Voltage converter and output rectifier
Regulation
Transformer design
Power factor

Topology
Buck converter
Basic circuit operation
Continuous mode
Disccontinuous mode
Boost converter
Continuous mode
Discontinuous mode
Buck boost converter
Continuous Mode
Discontinuous Mode
Forward converter
Principle operation
Fly back converter
Structure and principle
Continuous mode
Discontinuous mode
Cuk converter
Operating Principle
Continuous mode
Discontinuous mode
Push pull converter
Continuous mode
Discontinuous mode

Design configuration
At switch on
Just after switch on
After saturation

Direct current feedback control circuit
Conclusion
Bibliography