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Credits: 3

Catalog Description: Review of four layer devices and their applications. Gate control techniques in power switching elements and their protection. Introduction to solid-state energy conversion. AC/DC, AC/AC, DC/AC and DC/DC converters. Introduction to control of electrical drives. Industrial control systems: Relay circuits; ladder diagrams. Sequential control circuits. Case studies.

Coordinator: Okyay Kaynak, Professor of Electrical Engineering

Goals: This course covers solid-state control of dc drives, using different types of power converters. 2-quadrant, 4-quadrant and dual converter systems are covered. Closed loop cascade control system is introduced and how current and speed control loops are tuned are explained. An introduction to ac drives is also given.

Learning Objectives:

At the end of this course, students will be able to:

1. Describe the operation of power conversion circuits and  Compare the advantages and disadvantages of different topologies
2. Be able to select a power converter for a given drive system
3. Explain how robots are used for industrial automation and for what purpose and compare the advantages and disadvantages of different actuation systems (electrical, hydraulic and pnemautic)
4. Design a PLC sytem for sequential operation of an industrial process
5. Demonstrate an awareness of current issues in industrial electronics equipment


Reference Texts:

1. M. H. Rashid; Power Electronics, Power Electronics: Circuits, Devices, and Applications, Prentice Hall, 1988
2. O. Kaynak, Güç Elektroniği: Elemanlar, Devreler ve Sistemler, Boğaziçi Universitesi, 1988

Prerequisites by Topic:

1. Basic knowledge of electronic circuits
2. Basic knowledge in electromechanical energy conversion


1. Review of four layer devices and their applications (2 weeks)
2. Gate control techniques in power switching elements and their protection  (2 weeks)
3. Introduction to solid state energy conversion (1 week)
4. AC/DC, AC/AC, DC/AC and DC/DC converters  (4 weeks).
5. Introduction to control of electrical drives(1 week)
6. Industrial control systems; Relay circuits; Ladder diagrams(1 week)
7. Sequential control circuits (1 week)
8. Programmable Logic Controllers (2 weeks)

Course Structure: The class meets for two lectures a week, one consisting of two 50-minute sessions, the other one 50-minute session. The size of the class is usually small and this enables to closely evaluate the progress of the students. 

Computer Resources: None

Laboratory Resources: The facilities of the mechatronics laboratory are used for demonstrations.


1. 2 Mid-term exams (25% each).
2. A final exam (40%).
3. In class participation (10%)

Outcome Coverage:

(a) Apply math, science and engineering knowledge. The students learns to use their knowledege from physics and electronics  courses in undertanding and analysing power conversion circuits
(c) Design a system or a component to meet desired needs.  The discussions held in class focus on how to choose the best power converter, given a particular application. They also learn how to design a sequential controller with PLCs.
(i) Recognize the need for, and an ability to engage in life-long learning. Throughout the course, how fast the technology is changing is stressed, necessitating continual learning. In the face abundance of knowledge, the paradigm shift from “just-in-case teaching” to “just-in-time learning” is explained.
(j) A knowledge of contemporary issues. During the lectures, attention is focused on current developments in industrial electronics, robotics, MEMS and the penetration of IT in industrial electronics the form of “industrial informatics”.

Prepared By: Okyay Kaynak


Boğaziçi Üniversitesi - Elektrik ve Elektronik Mühendisliği Bölümü

34342 - Bebek / İSTANBUL

Tel: +90 212 359 64 14
Fax: +90 212 287 24 65







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