This course covers the modeling, structure, features, control, and applications of switching elements for high power converters. In this course, thyristors, diodes, MOSFETs, BJTs, IGBTs are analyzed for their behaviors in different switching circuits, control circuits, and snubber circuits. Power electronic converters are also presented, along with their models, operation, switching schemes, characteristics, and sample applications. The covered power electronic converters are the switch-mode AC-DC, AC-AC, DC-DC, and DC-AC for single and three phase topologies.