The laboratory course is an introduction to switched-mode power converters. It provides a basic knowledge of circuitry for the control and conversion of electrical power with high efficiency. These converters can change and regulate the voltage, current, or power; dc-dc converters, ac-dc rectifiers, dc-ac inverters, and ac-ac cycloconverters are in common use. Power electronics Laboratory covers four facets of an experimental setup: 1. The Scope and Theory of the experiment; 2. Understanding and Assembly of the setup; 3. Performing the Experiment; 4. Data Analysis and Interpretation of Results.