Analysis Of Asynchronous And Synchronous Buck Converter For Battery Charging

Mohd Sanuri, Mohamad Izzat Amir (2015) Analysis Of Asynchronous And Synchronous Buck Converter For Battery Charging. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Analysis Of Asynchronous And Synchronous Buck Converter For Battery Charging.pdf - Submitted Version Download (431kB)

Abstract

Power electronic device is widely used in industry as equipment to protect others device and saving the consumption of energy. To develop the electric vehicle (EV) and uninterruptible power system (UPS), power electronic research is done. Buck converter circuit is the one of power electronics circuit that used to step down the output voltage. In buck converter circuit, it has two topologies that used to operate which are asynchronous and synchronous. These two topologies have their own construction of circuit and circuit efficiency. However to make sure the circuit in stable system, the feedback circuit is develop in order to regulate the output voltage. Main objective of this project is to design, simulate, analyse and compare the Asynchronous and Synchronous buck converter efficiency. In addition, to study the voltage mode control of these different topologies. This project consists of two parts which are analysis at power stage of buck converter and design the circuit of voltage mode control for each circuit. At power stage circuit, the efficiency of these two circuits is compared. To validate the result, the step of experiments is repeat again by using others duty cycle value. Thus the suitable value for parameters that used in type III compensator is finding in order to design the voltage mode control circuit. Then, the result of comparison of these circuits is compared. In a nutshell, this project proved the Synchronous topologies is more efficient compared to Asynchronous if the circuit is operate at half and above the value of duty cycle.

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