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EC-503 (C) RGPV B.Tech

ADVANCED CONTROL SYSTEM (ACS)

The official syllabus is free to read, no account needed.

Syllabus, notes and important questions for EC-503 (C)

Syllabus units

Topics as the official RGPV syllabus lists them.

Unit 1 Advantages and disadvantages of digital control system 7 topics
  • Ideal sampler
  • Sampled and hold circuit
  • Zero order hold circuit
  • Z transform
  • Inverse Z transform by various method
  • Mapping between s plane and Z plane
  • Solution of the linear difference equation
Unit 1 notes
Unit 2 Pulse transfer function 6 topics
  • General procedure for obtaining pulse transfer function
  • Pulse transfer function of cascaded elements
  • Pulse transfer function of closed loop systems
  • Transfer function of discrete data system
  • Stability analysis of closed loop system in the z plane
  • Jury stability test
Unit 2 notes
Unit 3 Non Linear Systems 11 topics
  • Introduction
  • Common physical non linearity’s
  • Phase plane method
  • Basic concepts
  • Singular points
  • Stability of non linear system
  • Construction of phase trajectories
  • System analysis by phase plane method
  • Describing functions methods
  • Basic concepts derivation of describing function
  • Liapunov’s stability criterion
Unit 3 notes
Unit 4 Root locus and state space methods 7 topics
  • Review of root locus
  • Lead compensation
  • Lag compensation
  • Lag‑lead compensation and their comparison
  • Review of state space methods
  • Observability and controllability of system
  • Pole placement by state feedback
Unit 4 notes
Unit 5 PID controller and MATLAB Simulink 3 topics
  • Tuning rules of PID controller
  • Modifications of PID controllers
  • Introduction to software package used in control systems‑MATLAB SIMULINK
Unit 5 notes
Read the full syllabus

Exam insights

Counted from 7 past EC-503 (C) papers.

Marks asked per paper, by unit

  • Unit 1 Advantages and disadvantages of digital control system 3 marks
  • Unit 2 Pulse transfer function 10 marks
  • Unit 3 Non Linear Systems 0 marks
  • Unit 4 Root locus and state space methods 2 marks
  • Unit 5 PID controller and MATLAB Simulink 0 marks

Average marks of the questions from each unit in one paper. You answer only some of them, so the total is more than the paper’s maximum.

Asked again and again

  1. Define and explain the Z‑transform and its inverse methods.

    Asked 3 times: 2022, 2023, 2025

  2. State the Jury stability test procedure for discrete‑time systems.

    Asked 2 times: 2022, 2025

  3. Describe the phase‑plane method for nonlinear system analysis.

    Asked 2 times: 2022, 2023

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