This is a core module for the Mechatronics Students and an optional module meant for Mechanical Engineering Students. This module introduces the basic principle of operation of switched-mode power electronic converters those are used for processing and controlling electric energy to meet the demand of various types of loads. The overall emphasis is to provide an overview of power semiconductor devices and analysis and performance of various types of power electronic converters such as AC-DC, DC-DC, DC-AC and AC-AC. A significant amount of emphasis would be given for mechatronic applications. At the end of this module, it is expected that students would have a good understanding of principle of operation of different types of power electronic converters ? able to design, built and implement a power electronic converter for a given application.