To introduce the students to the essentials of supply converters and electric drives. Main attention is on explaining construction and operating principles of supply converters and electric drives used in the industry and infrastructures. To study energy exchange between power supply, electric drive and load machine as well as related electromechanical processes. To explain selection criteria of the drive based on the load and operating conditions with speed and torque control possibilities. To familiarise the students with the user interfaces of modern microprocessor-controlled drives.