Courses » Control System Design

Control System Design


The course exposes students to control design for continuous-time linear time-invariant (LTI) systems. The course focuses primarily on using Laplace and frequency-domain techniques. It discusses design of 1-degree of freedom (i.e., single controller) and 2-degree of freedom control systems for Single Input-Single Output (SISO) plants, using a range of tools including Nyquist plots, Bode plots, Evans plots (root locus), and Nichols plots. It also discusses the fundamental limits associated with control design and the related trade-offs that need to be made during design.

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Final Exam (in-person, invigilated, currently conducted in India) is mandatory for Certification and has INR Rs. 1100 as exam fee.


Aerospace, Electrical and Electronics, Mechanical and Chemical Engineering



PREREQUISITES: One undergraduate-level course exposing students either to Laplace transforms or control systems



G. R. Jayanth obtained his B. Tech from IIT Madras in 2002, MS and PhD from The Ohio State University in 2004 and 2008 respectively, all in Mechanical Engineering. Since 2010 he has been with Indian Institute of Science where he is currently an Associate Professor in the Department of Instrumentation and Applied Physics. His research interests include precision motion measurement and control, nanometrology and manipulation, scanning probe microscopy, micro-robotics and optical sensors.


Week 1  :  Linear system theory, Fourier and Laplace transforms, Transfer functions
Week 2  :   Fundamentals of feedback control, Nyquist stability theory
Week 3  : Bode plots, Design of 1-degree of freedom control systems (part 1)
Week 4  :  Design of 1-degree of freedom control systems (part 2)
Week 5  : Robust control (2 parts)
Week 6  : Quantitative Feedback Theory (Parts 1 and 2)
Week 7  : Quantitative Feedback Theory (Part 3), Bode sensitivity integral
Week 8  : Bode Gain-Phase relationship, Ideal Bode Characteristic
Week 9  : Control of non-minimum phase systems (2 parts)
Week 10  : Control of unstable systems (2 parts)
Week 11  : Describing functions, Solved examples
Week 12  : Solved examples


1. Horowitz I.M., Synthesis of Feedback Systems, Academic Press, 1963.
2. Goodwin G. C., Graebe S. E., Salgado M. E, Control System Design, PHI Learning, 2001.
3. Marcel Sidi, Design of Robust Control systems From Classical to Modern Practical Approaches, Kreiger Publishing Co. FL, USA, 2001.
4. Lecture notes
  • The exam is optional for a fee.
  • Date and Time of Exam: October 28, 2018 (Sunday)
  • Time of Exams: Morning session 9am to 12 noon; Afternoon session: 2pm to 5pm.
  • Exam for this Course will be available in both morning & afternoon sessions.
  • Registration url: Announcements will be made when the registration form is open for registrations.
  • The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published.


  • Final score will be calculated as : 25% assignment score + 75% final exam score
  • 25% assignment score is calculated as 25% of average of  Best 8 out of 12 assignments
  • E-Certificate will be given to those who register and write the exam and score greater than or equal to 40% final score. Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and Indian Institute of Science Bangalore.It will be e-verifiable at http://nptel.ac.in/noc/